[INFO] fetching crate rci 0.1.1...
[INFO] checking rci-0.1.1 against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] extracting crate rci 0.1.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate rci 0.1.1 on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "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-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ecca58ebdf8b0d27efeb30e6f167d3db339fde559a2a2c886ae5695e032bba1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6ecca58ebdf8b0d27efeb30e6f167d3db339fde559a2a2c886ae5695e032bba1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ecca58ebdf8b0d27efeb30e6f167d3db339fde559a2a2c886ae5695e032bba1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ecca58ebdf8b0d27efeb30e6f167d3db339fde559a2a2c886ae5695e032bba1", kill_on_drop: false }`
[INFO] [stdout] 6ecca58ebdf8b0d27efeb30e6f167d3db339fde559a2a2c886ae5695e032bba1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=forbid" "-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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ba965cea157f3683115986e305335e2e021108e8b74d70e4b043eb440e6ae7b2
[INFO] running `Command { std: "docker" "start" "-a" "ba965cea157f3683115986e305335e2e021108e8b74d70e4b043eb440e6ae7b2", kill_on_drop: false }`
[INFO] [stderr]     Checking 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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 a macro (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 0.87s
[INFO] running `Command { std: "docker" "inspect" "ba965cea157f3683115986e305335e2e021108e8b74d70e4b043eb440e6ae7b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba965cea157f3683115986e305335e2e021108e8b74d70e4b043eb440e6ae7b2", kill_on_drop: false }`
[INFO] [stdout] ba965cea157f3683115986e305335e2e021108e8b74d70e4b043eb440e6ae7b2