[INFO] cloning repository https://github.com/mmktomato/rust-calculator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mmktomato/rust-calculator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmktomato%2Frust-calculator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmktomato%2Frust-calculator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 93f6d2112f43b279406a94f0ba3ce490c6acd87b
[INFO] testing mmktomato/rust-calculator against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmktomato%2Frust-calculator" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mmktomato/rust-calculator on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mmktomato/rust-calculator
[INFO] finished tweaking git repo https://github.com/mmktomato/rust-calculator
[INFO] tweaked toml for git repo https://github.com/mmktomato/rust-calculator written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/mmktomato/rust-calculator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aae12d700bc75e7b87bd628584ce7ee198257673076b49e7c5179709271384ff
[INFO] running `Command { std: "docker" "start" "-a" "aae12d700bc75e7b87bd628584ce7ee198257673076b49e7c5179709271384ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aae12d700bc75e7b87bd628584ce7ee198257673076b49e7c5179709271384ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aae12d700bc75e7b87bd628584ce7ee198257673076b49e7c5179709271384ff", kill_on_drop: false }`
[INFO] [stdout] aae12d700bc75e7b87bd628584ce7ee198257673076b49e7c5179709271384ff
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bb6bebd27b9e54ba452413ff00324766918671db4f30f749beadd747394f6d7
[INFO] running `Command { std: "docker" "start" "-a" "4bb6bebd27b9e54ba452413ff00324766918671db4f30f749beadd747394f6d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-calculator v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/main.rs:88:53
[INFO] [stdout]    |
[INFO] [stdout] 88 |         tokenutil::TokenType::Operator(o) => panic!(format!("expression can't start with operator {} .", o)),
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 88 -         tokenutil::TokenType::Operator(o) => panic!(format!("expression can't start with operator {} .", o)),
[INFO] [stdout] 88 +         tokenutil::TokenType::Operator(o) => panic!("expression can't start with operator {} .", o),
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/main.rs:94:53
[INFO] [stdout]    |
[INFO] [stdout] 94 |         tokenutil::TokenType::Operator(o) => panic!(format!("expression can't end with operator {} .", o)),
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 94 -         tokenutil::TokenType::Operator(o) => panic!(format!("expression can't end with operator {} .", o)),
[INFO] [stdout] 94 +         tokenutil::TokenType::Operator(o) => panic!("expression can't end with operator {} .", o),
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.60s
[INFO] running `Command { std: "docker" "inspect" "4bb6bebd27b9e54ba452413ff00324766918671db4f30f749beadd747394f6d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bb6bebd27b9e54ba452413ff00324766918671db4f30f749beadd747394f6d7", kill_on_drop: false }`
[INFO] [stdout] 4bb6bebd27b9e54ba452413ff00324766918671db4f30f749beadd747394f6d7
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1ce5b4e12a440a7b56a3c1911f22f356ae872042843f2fd48b11b5c9b9bf41b
[INFO] running `Command { std: "docker" "start" "-a" "a1ce5b4e12a440a7b56a3c1911f22f356ae872042843f2fd48b11b5c9b9bf41b", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-calculator v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/main.rs:88:53
[INFO] [stdout]    |
[INFO] [stdout] 88 |         tokenutil::TokenType::Operator(o) => panic!(format!("expression can't start with operator {} .", o)),
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 88 -         tokenutil::TokenType::Operator(o) => panic!(format!("expression can't start with operator {} .", o)),
[INFO] [stdout] 88 +         tokenutil::TokenType::Operator(o) => panic!("expression can't start with operator {} .", o),
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/main.rs:94:53
[INFO] [stdout]    |
[INFO] [stdout] 94 |         tokenutil::TokenType::Operator(o) => panic!(format!("expression can't end with operator {} .", o)),
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 94 -         tokenutil::TokenType::Operator(o) => panic!(format!("expression can't end with operator {} .", o)),
[INFO] [stdout] 94 +         tokenutil::TokenType::Operator(o) => panic!("expression can't end with operator {} .", o),
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "a1ce5b4e12a440a7b56a3c1911f22f356ae872042843f2fd48b11b5c9b9bf41b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1ce5b4e12a440a7b56a3c1911f22f356ae872042843f2fd48b11b5c9b9bf41b", kill_on_drop: false }`
[INFO] [stdout] a1ce5b4e12a440a7b56a3c1911f22f356ae872042843f2fd48b11b5c9b9bf41b
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 671cb02dc92b6229965933f12e4b1d48fbdee764b3809f8188200498d6742a42
[INFO] running `Command { std: "docker" "start" "-a" "671cb02dc92b6229965933f12e4b1d48fbdee764b3809f8188200498d6742a42", kill_on_drop: false }`
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/main.rs:88:53
[INFO] [stderr]    |
[INFO] [stderr] 88 |         tokenutil::TokenType::Operator(o) => panic!(format!("expression can't start with operator {} .", o)),
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]    |
[INFO] [stderr] 88 -         tokenutil::TokenType::Operator(o) => panic!(format!("expression can't start with operator {} .", o)),
[INFO] [stderr] 88 +         tokenutil::TokenType::Operator(o) => panic!("expression can't start with operator {} .", o),
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/main.rs:94:53
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 94 |         tokenutil::TokenType::Operator(o) => panic!(format!("expression can't end with operator {} .", o)),
[INFO] [stdout] 
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]    |
[INFO] [stderr] 94 -         tokenutil::TokenType::Operator(o) => panic!(format!("expression can't end with operator {} .", o)),
[INFO] [stderr] 94 +         tokenutil::TokenType::Operator(o) => panic!("expression can't end with operator {} .", o),
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-calculator` (bin "rust-calculator" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_calculator-7b3e357dc293a099)
[INFO] running `Command { std: "docker" "inspect" "671cb02dc92b6229965933f12e4b1d48fbdee764b3809f8188200498d6742a42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "671cb02dc92b6229965933f12e4b1d48fbdee764b3809f8188200498d6742a42", kill_on_drop: false }`
[INFO] [stdout] 671cb02dc92b6229965933f12e4b1d48fbdee764b3809f8188200498d6742a42