[INFO] cloning repository https://github.com/tmaxmax/polynomial-roots-calculator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tmaxmax/polynomial-roots-calculator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftmaxmax%2Fpolynomial-roots-calculator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftmaxmax%2Fpolynomial-roots-calculator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0a36f512ed8cbcca964b0144b7ef9d0cba7840a5
[INFO] testing tmaxmax/polynomial-roots-calculator against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftmaxmax%2Fpolynomial-roots-calculator" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-0-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/tmaxmax/polynomial-roots-calculator
[INFO] finished tweaking git repo https://github.com/tmaxmax/polynomial-roots-calculator
[INFO] tweaked toml for git repo https://github.com/tmaxmax/polynomial-roots-calculator written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tmaxmax/polynomial-roots-calculator on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tmaxmax/polynomial-roots-calculator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d349b46e98c9f1d3388c15cde37390d8f7490dd24459d8d777fef14c70de7c0b
[INFO] running `Command { std: "docker" "start" "-a" "d349b46e98c9f1d3388c15cde37390d8f7490dd24459d8d777fef14c70de7c0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d349b46e98c9f1d3388c15cde37390d8f7490dd24459d8d777fef14c70de7c0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d349b46e98c9f1d3388c15cde37390d8f7490dd24459d8d777fef14c70de7c0b", kill_on_drop: false }`
[INFO] [stdout] d349b46e98c9f1d3388c15cde37390d8f7490dd24459d8d777fef14c70de7c0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 959d2acfc3e04566971a7e5d1eac552961de88ea6e61b9861a767147cb539762
[INFO] running `Command { std: "docker" "start" "-a" "959d2acfc3e04566971a7e5d1eac552961de88ea6e61b9861a767147cb539762", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling anyhow v1.0.71
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling polynomial-roots-calculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `primitive`, `gcd`, and `gsfd` are never used
[INFO] [stdout]   --> src/polynomial.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Polynomial {
[INFO] [stdout]    | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn primitive(&self) -> (Polynomial, f64) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     pub fn gcd(&self, rhs: &Self) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     pub fn gsfd(&self) -> Self {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gcd` is never used
[INFO] [stdout]    --> src/polynomial.rs:303:4
[INFO] [stdout]     |
[INFO] [stdout] 303 | fn gcd(mut r0: Vec<Rational32>, mut r1: Vec<Rational32>) -> Vec<Rational32> {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `primitive` is never used
[INFO] [stdout]    --> src/polynomial.rs:319:4
[INFO] [stdout]     |
[INFO] [stdout] 319 | fn primitive(v: &mut [Rational32]) -> Rational32 {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.01s
[INFO] running `Command { std: "docker" "inspect" "959d2acfc3e04566971a7e5d1eac552961de88ea6e61b9861a767147cb539762", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "959d2acfc3e04566971a7e5d1eac552961de88ea6e61b9861a767147cb539762", kill_on_drop: false }`
[INFO] [stdout] 959d2acfc3e04566971a7e5d1eac552961de88ea6e61b9861a767147cb539762
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e414abaf40d5bdc1d13899bb727074f2dbf4b404eb62989257069252d1d12fac
[INFO] running `Command { std: "docker" "start" "-a" "e414abaf40d5bdc1d13899bb727074f2dbf4b404eb62989257069252d1d12fac", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling polynomial-roots-calculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.59s
[INFO] running `Command { std: "docker" "inspect" "e414abaf40d5bdc1d13899bb727074f2dbf4b404eb62989257069252d1d12fac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e414abaf40d5bdc1d13899bb727074f2dbf4b404eb62989257069252d1d12fac", kill_on_drop: false }`
[INFO] [stdout] e414abaf40d5bdc1d13899bb727074f2dbf4b404eb62989257069252d1d12fac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 760f8c94d7abe93458f6a69091b0291da8f5569293ac9ec87f95dd9e1bc4c1e9
[INFO] running `Command { std: "docker" "start" "-a" "760f8c94d7abe93458f6a69091b0291da8f5569293ac9ec87f95dd9e1bc4c1e9", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/polynomial_roots_calculator-d94ab44867de7aa1)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test polynomial::tests::bench_from_rational ... ok
[INFO] [stdout] test polynomial::tests::bench_to_rational ... ok
[INFO] [stdout] test polynomial::tests::test_horner ... ok
[INFO] [stdout] test polynomial::tests::test_gsfd ... ok
[INFO] [stdout] test polynomial::tests::test_primitive ... ok
[INFO] [stdout] test polynomial::tests::test_long_div ... ok
[INFO] [stdout] test polynomial::tests::test_gcd ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "760f8c94d7abe93458f6a69091b0291da8f5569293ac9ec87f95dd9e1bc4c1e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "760f8c94d7abe93458f6a69091b0291da8f5569293ac9ec87f95dd9e1bc4c1e9", kill_on_drop: false }`
[INFO] [stdout] 760f8c94d7abe93458f6a69091b0291da8f5569293ac9ec87f95dd9e1bc4c1e9