[INFO] fetching crate rci 0.1.1...
[INFO] testing rci-0.1.1 against 1.54.0 for beta-1.55-1
[INFO] extracting crate rci 0.1.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate rci 0.1.1 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rci 0.1.1
[INFO] finished tweaking crates.io crate rci 0.1.1
[INFO] tweaked toml for crates.io crate rci 0.1.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 41871e7ff5a22d5a5347c303eefa5ba8d2c21d07a08d786b40d74c762b6dfaa2
[INFO] running `Command { std: "docker" "start" "-a" "41871e7ff5a22d5a5347c303eefa5ba8d2c21d07a08d786b40d74c762b6dfaa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41871e7ff5a22d5a5347c303eefa5ba8d2c21d07a08d786b40d74c762b6dfaa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41871e7ff5a22d5a5347c303eefa5ba8d2c21d07a08d786b40d74c762b6dfaa2", kill_on_drop: false }`
[INFO] [stdout] 41871e7ff5a22d5a5347c303eefa5ba8d2c21d07a08d786b40d74c762b6dfaa2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a4f302e512e6aa95c5b1f6bae8c227a98b489a7d18b202e72c8ba4f9280f2f9
[INFO] running `Command { std: "docker" "start" "-a" "9a4f302e512e6aa95c5b1f6bae8c227a98b489a7d18b202e72c8ba4f9280f2f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling rci v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:38:29
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!(e),
[INFO] [stdout]    |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 69 |         match (err!(env::var("TRAVIS")), err!(env::var("CIRCLECI"))) {
[INFO] [stdout]    |                ------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!("{}", e),
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => std::panic::panic_any(e),
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:38:29
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!(e),
[INFO] [stdout]    |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 69 |         match (err!(env::var("TRAVIS")), err!(env::var("CIRCLECI"))) {
[INFO] [stdout]    |                                          -------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!("{}", e),
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => std::panic::panic_any(e),
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:38:29
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!(e),
[INFO] [stdout]    |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 78 |         err!(env::var("LANG"))
[INFO] [stdout]    |         ---------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!("{}", e),
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => std::panic::panic_any(e),
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:38:29
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!(e),
[INFO] [stdout]    |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 83 |         err!(env::var("PATH"))
[INFO] [stdout]    |         ---------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!("{}", e),
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => std::panic::panic_any(e),
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:38:29
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!(e),
[INFO] [stdout]    |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 88 |         err!(env::var("HOME"))
[INFO] [stdout]    |         ---------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!("{}", e),
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => std::panic::panic_any(e),
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 107 |             CiService::Circle => err!(env::var("CIRCLE_BRANCH")),
[INFO] [stdout]     |                                  ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 108 |             CiService::Travis => err!(env::var("TRAVIS_BRANCH")),
[INFO] [stdout]     |                                  ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 118 |             CiService::Circle => err!(env::var("CIRCLE_BUILD_URL")),
[INFO] [stdout]     |                                  ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 127 |             CiService::Circle => err!(env::var("CIRCLE_BUILD_NUM")),
[INFO] [stdout]     |                                  ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 128 |             CiService::Travis => err!(env::var("TRAVIS_BUILD_NUMBER")),
[INFO] [stdout]     |                                  ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 138 |             CiService::Travis => err!(env::var("TRAVIS_BUILD_DIR")),
[INFO] [stdout]     |                                  ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 146 |             CiService::Circle => err!(env::var("CIRCLE_SHA1")),
[INFO] [stdout]     |                                  ----------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 147 |             CiService::Travis => err!(env::var("TRAVIS_COMMIT")),
[INFO] [stdout]     |                                  ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 157 |             CiService::Circle => err!(env::var("CIRCLE_PR_NUMBER")),
[INFO] [stdout]     |                                  ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 159 |                 let pr = err!(env::var("TRAVIS_PULL_REQUEST")).unwrap_or("false".to_string());
[INFO] [stdout]     |                          ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 170 |     lang_version!("DART", dart);
[INFO] [stdout]     |     ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 171 |     lang_version!("GO", go);
[INFO] [stdout]     |     ------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 172 |     lang_version!("HAXE", haxe);
[INFO] [stdout]     |     ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 173 |     lang_version!("JDK", java);
[INFO] [stdout]     |     --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 174 |     lang_version!("JULIA", julia);
[INFO] [stdout]     |     ------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 175 |     lang_version!("NODE", node);
[INFO] [stdout]     |     ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 176 |     lang_version!("OTP", otp);
[INFO] [stdout]     |     -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 177 |     lang_version!("PERL", perl);
[INFO] [stdout]     |     ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 178 |     lang_version!("PHP", php);
[INFO] [stdout]     |     -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 179 |     lang_version!("PYTHON", python);
[INFO] [stdout]     |     -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 180 |     lang_version!("R", r);
[INFO] [stdout]     |     ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 181 |     lang_version!("RUBY", ruby);
[INFO] [stdout]     |     ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 182 |     lang_version!("RUST", rust);
[INFO] [stdout]     |     ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 183 |     lang_version!("SCALA", scala);
[INFO] [stdout]     |     ------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "9a4f302e512e6aa95c5b1f6bae8c227a98b489a7d18b202e72c8ba4f9280f2f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a4f302e512e6aa95c5b1f6bae8c227a98b489a7d18b202e72c8ba4f9280f2f9", kill_on_drop: false }`
[INFO] [stdout] 9a4f302e512e6aa95c5b1f6bae8c227a98b489a7d18b202e72c8ba4f9280f2f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28ea9a8576d2ec2d2b80a520ce9ae7f24e39fdaa270d73471f2b254e677b503e
[INFO] running `Command { std: "docker" "start" "-a" "28ea9a8576d2ec2d2b80a520ce9ae7f24e39fdaa270d73471f2b254e677b503e", kill_on_drop: false }`
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:38:29
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!(e),
[INFO] [stdout]    |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 69 |         match (err!(env::var("TRAVIS")), err!(env::var("CIRCLECI"))) {
[INFO] [stdout]    |                ------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!("{}", e),
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => std::panic::panic_any(e),
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:38:29
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!(e),
[INFO] [stdout]    |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 69 |         match (err!(env::var("TRAVIS")), err!(env::var("CIRCLECI"))) {
[INFO] [stdout]    |                                          -------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!("{}", e),
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => std::panic::panic_any(e),
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:38:29
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!(e),
[INFO] [stdout]    |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 78 |         err!(env::var("LANG"))
[INFO] [stdout]    |         ---------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!("{}", e),
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => std::panic::panic_any(e),
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:38:29
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!(e),
[INFO] [stdout]    |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 83 |         err!(env::var("PATH"))
[INFO] [stdout]    |         ---------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!("{}", e),
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => std::panic::panic_any(e),
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:38:29
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!(e),
[INFO] [stdout]    |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 88 |         err!(env::var("HOME"))
[INFO] [stdout]    |         ---------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!("{}", e),
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => std::panic::panic_any(e),
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 107 |             CiService::Circle => err!(env::var("CIRCLE_BRANCH")),
[INFO] [stdout]     |                                  ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 108 |             CiService::Travis => err!(env::var("TRAVIS_BRANCH")),
[INFO] [stdout]     |                                  ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 118 |             CiService::Circle => err!(env::var("CIRCLE_BUILD_URL")),
[INFO] [stdout]     |                                  ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 127 |             CiService::Circle => err!(env::var("CIRCLE_BUILD_NUM")),
[INFO] [stdout]     |                                  ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 128 |             CiService::Travis => err!(env::var("TRAVIS_BUILD_NUMBER")),
[INFO] [stdout]     |                                  ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 138 |             CiService::Travis => err!(env::var("TRAVIS_BUILD_DIR")),
[INFO] [stdout]     |                                  ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 146 |             CiService::Circle => err!(env::var("CIRCLE_SHA1")),
[INFO] [stdout]     |                                  ----------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 147 |             CiService::Travis => err!(env::var("TRAVIS_COMMIT")),
[INFO] [stdout]     |                                  ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 157 |             CiService::Circle => err!(env::var("CIRCLE_PR_NUMBER")),
[INFO] [stdout]     |                                  ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 159 |                 let pr = err!(env::var("TRAVIS_PULL_REQUEST")).unwrap_or("false".to_string());
[INFO] [stdout]     |                          ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 170 |     lang_version!("DART", dart);
[INFO] [stdout]     |     ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 171 |     lang_version!("GO", go);
[INFO] [stdout]     |     ------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 172 |     lang_version!("HAXE", haxe);
[INFO] [stdout]     |     ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 173 |     lang_version!("JDK", java);
[INFO] [stdout]     |     --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 174 |     lang_version!("JULIA", julia);
[INFO] [stdout]     |     ------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 175 |     lang_version!("NODE", node);
[INFO] [stdout]     |     ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 176 |     lang_version!("OTP", otp);
[INFO] [stdout]     |     -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 177 |     lang_version!("PERL", perl);
[INFO] [stdout]     |     ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 178 |     lang_version!("PHP", php);
[INFO] [stdout]     |     -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 179 |     lang_version!("PYTHON", python);
[INFO] [stdout]     |     -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rci v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 180 |     lang_version!("R", r);
[INFO] [stdout]     |     ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 181 |     lang_version!("RUBY", ruby);
[INFO] [stdout]     |     ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 182 |     lang_version!("RUST", rust);
[INFO] [stdout]     |     ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 183 |     lang_version!("SCALA", scala);
[INFO] [stdout]     |     ------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:38:29
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!(e),
[INFO] [stdout]    |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 69 |         match (err!(env::var("TRAVIS")), err!(env::var("CIRCLECI"))) {
[INFO] [stdout]    |                ------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!("{}", e),
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => std::panic::panic_any(e),
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:38:29
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!(e),
[INFO] [stdout]    |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 69 |         match (err!(env::var("TRAVIS")), err!(env::var("CIRCLECI"))) {
[INFO] [stdout]    |                                          -------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!("{}", e),
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => std::panic::panic_any(e),
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:38:29
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!(e),
[INFO] [stdout]    |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 78 |         err!(env::var("LANG"))
[INFO] [stdout]    |         ---------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!("{}", e),
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => std::panic::panic_any(e),
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:38:29
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!(e),
[INFO] [stdout]    |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 83 |         err!(env::var("PATH"))
[INFO] [stdout]    |         ---------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!("{}", e),
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => std::panic::panic_any(e),
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:38:29
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!(e),
[INFO] [stdout]    |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 88 |         err!(env::var("HOME"))
[INFO] [stdout]    |         ---------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => panic!("{}", e),
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 _ => std::panic::panic_any(e),
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 107 |             CiService::Circle => err!(env::var("CIRCLE_BRANCH")),
[INFO] [stdout]     |                                  ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 108 |             CiService::Travis => err!(env::var("TRAVIS_BRANCH")),
[INFO] [stdout]     |                                  ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 118 |             CiService::Circle => err!(env::var("CIRCLE_BUILD_URL")),
[INFO] [stdout]     |                                  ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 127 |             CiService::Circle => err!(env::var("CIRCLE_BUILD_NUM")),
[INFO] [stdout]     |                                  ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 128 |             CiService::Travis => err!(env::var("TRAVIS_BUILD_NUMBER")),
[INFO] [stdout]     |                                  ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 138 |             CiService::Travis => err!(env::var("TRAVIS_BUILD_DIR")),
[INFO] [stdout]     |                                  ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 146 |             CiService::Circle => err!(env::var("CIRCLE_SHA1")),
[INFO] [stdout]     |                                  ----------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 147 |             CiService::Travis => err!(env::var("TRAVIS_COMMIT")),
[INFO] [stdout]     |                                  ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 157 |             CiService::Circle => err!(env::var("CIRCLE_PR_NUMBER")),
[INFO] [stdout]     |                                  ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 159 |                 let pr = err!(env::var("TRAVIS_PULL_REQUEST")).unwrap_or("false".to_string());
[INFO] [stdout]     |                          ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 170 |     lang_version!("DART", dart);
[INFO] [stdout]     |     ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 171 |     lang_version!("GO", go);
[INFO] [stdout]     |     ------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 172 |     lang_version!("HAXE", haxe);
[INFO] [stdout]     |     ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 173 |     lang_version!("JDK", java);
[INFO] [stdout]     |     --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 174 |     lang_version!("JULIA", julia);
[INFO] [stdout]     |     ------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 175 |     lang_version!("NODE", node);
[INFO] [stdout]     |     ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 176 |     lang_version!("OTP", otp);
[INFO] [stdout]     |     -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 177 |     lang_version!("PERL", perl);
[INFO] [stdout]     |     ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 178 |     lang_version!("PHP", php);
[INFO] [stdout]     |     -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 179 |     lang_version!("PYTHON", python);
[INFO] [stdout]     |     -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 180 |     lang_version!("R", r);
[INFO] [stdout]     |     ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 181 |     lang_version!("RUBY", ruby);
[INFO] [stdout]     |     ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 182 |     lang_version!("RUST", rust);
[INFO] [stdout]     |     ---------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:38:29
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!(e),
[INFO] [stdout]     |                             ^
[INFO] [stdout] ...
[INFO] [stdout] 183 |     lang_version!("SCALA", scala);
[INFO] [stdout]     |     ------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => panic!("{}", e),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "28ea9a8576d2ec2d2b80a520ce9ae7f24e39fdaa270d73471f2b254e677b503e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28ea9a8576d2ec2d2b80a520ce9ae7f24e39fdaa270d73471f2b254e677b503e", kill_on_drop: false }`
[INFO] [stdout] 28ea9a8576d2ec2d2b80a520ce9ae7f24e39fdaa270d73471f2b254e677b503e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5b87948b0d15fcd198d6e26c181e8a801ad9a83e656834e92daf54675c119c18
[INFO] running `Command { std: "docker" "start" "-a" "5b87948b0d15fcd198d6e26c181e8a801ad9a83e656834e92daf54675c119c18", kill_on_drop: false }`
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/lib.rs:38:29
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => panic!(e),
[INFO] [stderr]    |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 69 |         match (err!(env::var("TRAVIS")), err!(env::var("CIRCLECI"))) {
[INFO] [stderr]    |                ------------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => panic!("{}", e),
[INFO] [stderr]    |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => std::panic::panic_any(e),
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/lib.rs:38:29
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => panic!(e),
[INFO] [stderr]    |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 69 |         match (err!(env::var("TRAVIS")), err!(env::var("CIRCLECI"))) {
[INFO] [stderr]    |                                          -------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => panic!("{}", e),
[INFO] [stderr]    |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => std::panic::panic_any(e),
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/lib.rs:38:29
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => panic!(e),
[INFO] [stderr]    |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 78 |         err!(env::var("LANG"))
[INFO] [stderr]    |         ---------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => panic!("{}", e),
[INFO] [stderr]    |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => std::panic::panic_any(e),
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/lib.rs:38:29
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => panic!(e),
[INFO] [stderr]    |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 83 |         err!(env::var("PATH"))
[INFO] [stderr]    |         ---------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => panic!("{}", e),
[INFO] [stderr]    |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => std::panic::panic_any(e),
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/lib.rs:38:29
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => panic!(e),
[INFO] [stderr]    |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 88 |         err!(env::var("HOME"))
[INFO] [stderr]    |         ---------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => panic!("{}", e),
[INFO] [stderr]    |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => std::panic::panic_any(e),
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 107 |             CiService::Circle => err!(env::var("CIRCLE_BRANCH")),
[INFO] [stderr]     |                                  ------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 108 |             CiService::Travis => err!(env::var("TRAVIS_BRANCH")),
[INFO] [stderr]     |                                  ------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 118 |             CiService::Circle => err!(env::var("CIRCLE_BUILD_URL")),
[INFO] [stderr]     |                                  ---------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 127 |             CiService::Circle => err!(env::var("CIRCLE_BUILD_NUM")),
[INFO] [stderr]     |                                  ---------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 128 |             CiService::Travis => err!(env::var("TRAVIS_BUILD_NUMBER")),
[INFO] [stderr]     |                                  ------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 138 |             CiService::Travis => err!(env::var("TRAVIS_BUILD_DIR")),
[INFO] [stderr]     |                                  ---------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 146 |             CiService::Circle => err!(env::var("CIRCLE_SHA1")),
[INFO] [stderr]     |                                  ----------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 147 |             CiService::Travis => err!(env::var("TRAVIS_COMMIT")),
[INFO] [stderr]     |                                  ------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 157 |             CiService::Circle => err!(env::var("CIRCLE_PR_NUMBER")),
[INFO] [stderr]     |                                  ---------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 159 |                 let pr = err!(env::var("TRAVIS_PULL_REQUEST")).unwrap_or("false".to_string());
[INFO] [stderr]     |                          ------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 170 |     lang_version!("DART", dart);
[INFO] [stderr]     |     ---------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 171 |     lang_version!("GO", go);
[INFO] [stderr]     |     ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 172 |     lang_version!("HAXE", haxe);
[INFO] [stderr]     |     ---------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 173 |     lang_version!("JDK", java);
[INFO] [stderr]     |     --------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 174 |     lang_version!("JULIA", julia);
[INFO] [stderr]     |     ------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 175 |     lang_version!("NODE", node);
[INFO] [stderr]     |     ---------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 176 |     lang_version!("OTP", otp);
[INFO] [stderr]     |     -------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 177 |     lang_version!("PERL", perl);
[INFO] [stderr]     |     ---------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 178 |     lang_version!("PHP", php);
[INFO] [stderr]     |     -------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 179 |     lang_version!("PYTHON", python);
[INFO] [stderr]     |     -------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 180 |     lang_version!("R", r);
[INFO] [stderr]     |     ---------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 181 |     lang_version!("RUBY", ruby);
[INFO] [stderr]     |     ---------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 182 |     lang_version!("RUST", rust);
[INFO] [stderr]     |     ---------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 183 |     lang_version!("SCALA", scala);
[INFO] [stderr]     |     ------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 29 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/lib.rs:38:29
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => panic!(e),
[INFO] [stderr]    |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 69 |         match (err!(env::var("TRAVIS")), err!(env::var("CIRCLECI"))) {
[INFO] [stderr]    |                ------------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => panic!("{}", e),
[INFO] [stderr]    |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => std::panic::panic_any(e),
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/lib.rs:38:29
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => panic!(e),
[INFO] [stderr]    |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 69 |         match (err!(env::var("TRAVIS")), err!(env::var("CIRCLECI"))) {
[INFO] [stderr]    |                                          -------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => panic!("{}", e),
[INFO] [stderr]    |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => std::panic::panic_any(e),
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/lib.rs:38:29
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => panic!(e),
[INFO] [stderr]    |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 78 |         err!(env::var("LANG"))
[INFO] [stderr]    |         ---------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => panic!("{}", e),
[INFO] [stderr]    |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => std::panic::panic_any(e),
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/lib.rs:38:29
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => panic!(e),
[INFO] [stderr]    |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 83 |         err!(env::var("PATH"))
[INFO] [stderr]    |         ---------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => panic!("{}", e),
[INFO] [stderr]    |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => std::panic::panic_any(e),
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/lib.rs:38:29
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => panic!(e),
[INFO] [stderr]    |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 88 |         err!(env::var("HOME"))
[INFO] [stderr]    |         ---------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => panic!("{}", e),
[INFO] [stderr]    |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 _ => std::panic::panic_any(e),
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 107 |             CiService::Circle => err!(env::var("CIRCLE_BRANCH")),
[INFO] [stderr]     |                                  ------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 108 |             CiService::Travis => err!(env::var("TRAVIS_BRANCH")),
[INFO] [stderr]     |                                  ------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 118 |             CiService::Circle => err!(env::var("CIRCLE_BUILD_URL")),
[INFO] [stderr]     |                                  ---------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 127 |             CiService::Circle => err!(env::var("CIRCLE_BUILD_NUM")),
[INFO] [stderr]     |                                  ---------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 128 |             CiService::Travis => err!(env::var("TRAVIS_BUILD_NUMBER")),
[INFO] [stderr]     |                                  ------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 138 |             CiService::Travis => err!(env::var("TRAVIS_BUILD_DIR")),
[INFO] [stderr]     |                                  ---------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 146 |             CiService::Circle => err!(env::var("CIRCLE_SHA1")),
[INFO] [stderr]     |                                  ----------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 147 |             CiService::Travis => err!(env::var("TRAVIS_COMMIT")),
[INFO] [stderr]     |                                  ------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 157 |             CiService::Circle => err!(env::var("CIRCLE_PR_NUMBER")),
[INFO] [stderr]     |                                  ---------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 159 |                 let pr = err!(env::var("TRAVIS_PULL_REQUEST")).unwrap_or("false".to_string());
[INFO] [stderr]     |                          ------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 170 |     lang_version!("DART", dart);
[INFO] [stderr]     |     ---------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 171 |     lang_version!("GO", go);
[INFO] [stderr]     |     ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 172 |     lang_version!("HAXE", haxe);
[INFO] [stderr]     |     ---------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 173 |     lang_version!("JDK", java);
[INFO] [stderr]     |     --------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 174 |     lang_version!("JULIA", julia);
[INFO] [stderr]     |     ------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 175 |     lang_version!("NODE", node);
[INFO] [stderr]     |     ---------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 176 |     lang_version!("OTP", otp);
[INFO] [stderr]     |     -------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 177 |     lang_version!("PERL", perl);
[INFO] [stderr]     |     ---------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 178 |     lang_version!("PHP", php);
[INFO] [stderr]     |     -------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 179 |     lang_version!("PYTHON", python);
[INFO] [stderr]     |     -------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 180 |     lang_version!("R", r);
[INFO] [stderr]     |     ---------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 181 |     lang_version!("RUBY", ruby);
[INFO] [stderr]     |     ---------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 182 |     lang_version!("RUST", rust);
[INFO] [stderr]     |     ---------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:38:29
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!(e),
[INFO] [stderr]     |                             ^
[INFO] [stderr] ...
[INFO] [stderr] 183 |     lang_version!("SCALA", scala);
[INFO] [stderr]     |     ------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: this warning originates in the macro `err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => panic!("{}", e),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 38  |                 _ => std::panic::panic_any(e),
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 29 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rci-6472a9dc63e2280b)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_circle.rs (/opt/rustwide/target/debug/deps/test_circle-2fdbe7801eccdcbe)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_circle ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test_circle stdout ----
[INFO] [stdout] thread 'test_circle' panicked at 'assertion failed: Ci::lang().is_some()', tests/test_circle.rs:7:5
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x558f5b258a50 - std::backtrace_rs::backtrace::libunwind::trace::h34055254b57d8e79
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x558f5b258a50 - std::backtrace_rs::backtrace::trace_unsynchronized::h8f1e3fbd9afff6ec
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x558f5b258a50 - std::sys_common::backtrace::_print_fmt::h3a99a796b770c360
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x558f5b258a50 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h32d1f94a80615d18
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x558f5b27b24c - core::fmt::write::h306731c068f7162c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/fmt/mod.rs:1110:17
[INFO] [stdout]    5:     0x558f5b255975 - std::io::Write::write_fmt::h87f19b0a2cd190bc
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/io/mod.rs:1588:15
[INFO] [stdout]    6:     0x558f5b25abbb - std::sys_common::backtrace::_print::h5abaa2601a852287
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x558f5b25abbb - std::sys_common::backtrace::print::h8d81445442bb638f
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x558f5b25abbb - std::panicking::default_hook::{{closure}}::hcfe804496a9fa747
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x558f5b25a6cc - std::panicking::default_hook::hbea8e3ccf2ba8901
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x558f5b25b284 - std::panicking::rust_panic_with_hook::h7ee9e1a2d0f8975a
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x558f5b25ad37 - std::panicking::begin_panic_handler::{{closure}}::h8ab3b4491718b2c7
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:517:13
[INFO] [stdout]   12:     0x558f5b258f4c - std::sys_common::backtrace::__rust_end_short_backtrace::hd489062ffa586a9f
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x558f5b25acc9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x558f5b204641 - core::panicking::panic_fmt::hca6330e3e14086b4
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x558f5b20458d - core::panicking::panic::h1a48d878ff3dcd40
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/panicking.rs:50:5
[INFO] [stdout]   16:     0x558f5b205390 - test_circle::test_circle::hd6eab6755a97d836
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/test_circle.rs:7:5
[INFO] [stdout]   17:     0x558f5b2052da - test_circle::test_circle::{{closure}}::ha1d15976b34eba4a
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/test_circle.rs:6:1
[INFO] [stdout]   18:     0x558f5b2051ce - core::ops::function::FnOnce::call_once::hf1b7a13ad407c5a3
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   19:     0x558f5b22d8f3 - core::ops::function::FnOnce::call_once::h152e7e439ff59e19
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   20:     0x558f5b22d8f3 - test::__rust_begin_short_backtrace::h0908f3b1fdbb72ab
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:577:5
[INFO] [stdout]   21:     0x558f5b22c3b0 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf6d2a51e5587546c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   22:     0x558f5b22c3b0 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8af660f3a89ef593
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:347:9
[INFO] [stdout]   23:     0x558f5b22c3b0 - std::panicking::try::do_call::hd36aef60f84b6d36
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stdout]   24:     0x558f5b22c3b0 - std::panicking::try::h9932b4480e69817c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stdout]   25:     0x558f5b22c3b0 - std::panic::catch_unwind::h6aa177099cfff5f8
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stdout]   26:     0x558f5b22c3b0 - test::run_test_in_process::h5884d6f2d99e20c3
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:600:18
[INFO] [stdout]   27:     0x558f5b22c3b0 - test::run_test::run_test_inner::{{closure}}::h6fdc58c6d5f5b6e3
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:492:39
[INFO] [stdout]   28:     0x558f5b205a62 - test::run_test::run_test_inner::{{closure}}::h408365d67a78ade8
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:519:37
[INFO] [stdout]   29:     0x558f5b205a62 - std::sys_common::backtrace::__rust_begin_short_backtrace::hb560b77c4f701523
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   30:     0x558f5b209618 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hf2e7831dad93c597
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/thread/mod.rs:481:17
[INFO] [stdout]   31:     0x558f5b209618 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hd2e08783d8be4d02
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:347:9
[INFO] [stdout]   32:     0x558f5b209618 - std::panicking::try::do_call::h062597b7acfd6b82
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stdout]   33:     0x558f5b209618 - std::panicking::try::h0d7b79db04c14552
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stdout]   34:     0x558f5b209618 - std::panic::catch_unwind::hb01a0b5e7c8cd43b
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stdout]   35:     0x558f5b209618 - std::thread::Builder::spawn_unchecked::{{closure}}::h5bde48cc887e0d1e
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/thread/mod.rs:480:30
[INFO] [stdout]   36:     0x558f5b209618 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h745ea30807a29e55
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   37:     0x558f5b25fd47 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7ece6cfefaff1005
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   38:     0x558f5b25fd47 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hb8b48e55c21f193e
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   39:     0x558f5b25fd47 - std::sys::unix::thread::Thread::new::thread_start::h8c7c4450dba62914
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   40:     0x7fa1d2eb3609 - start_thread
[INFO] [stdout]   41:     0x7fa1d2c85293 - clone
[INFO] [stdout]   42:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     test_circle
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--test test_circle'
[INFO] running `Command { std: "docker" "inspect" "5b87948b0d15fcd198d6e26c181e8a801ad9a83e656834e92daf54675c119c18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b87948b0d15fcd198d6e26c181e8a801ad9a83e656834e92daf54675c119c18", kill_on_drop: false }`
[INFO] [stdout] 5b87948b0d15fcd198d6e26c181e8a801ad9a83e656834e92daf54675c119c18
