[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 try#b83b707f97d809763b7861afa7638871f3339a33 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-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-0-tc2/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-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tmaxmax/polynomial-roots-calculator on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b47f71cad07721c779c9e853b14fcd8da3e5a907b4fc90a2f458f8f11d38aa7
[INFO] running `Command { std: "docker" "start" "-a" "4b47f71cad07721c779c9e853b14fcd8da3e5a907b4fc90a2f458f8f11d38aa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b47f71cad07721c779c9e853b14fcd8da3e5a907b4fc90a2f458f8f11d38aa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b47f71cad07721c779c9e853b14fcd8da3e5a907b4fc90a2f458f8f11d38aa7", kill_on_drop: false }`
[INFO] [stdout] 4b47f71cad07721c779c9e853b14fcd8da3e5a907b4fc90a2f458f8f11d38aa7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3672201b8fa61f91c2e454bb405994f259099a9fc2e80bc7e7ddd2b21daf1c5a
[INFO] running `Command { std: "docker" "start" "-a" "3672201b8fa61f91c2e454bb405994f259099a9fc2e80bc7e7ddd2b21daf1c5a", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling anyhow v1.0.71
[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 3.65s
[INFO] running `Command { std: "docker" "inspect" "3672201b8fa61f91c2e454bb405994f259099a9fc2e80bc7e7ddd2b21daf1c5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3672201b8fa61f91c2e454bb405994f259099a9fc2e80bc7e7ddd2b21daf1c5a", kill_on_drop: false }`
[INFO] [stdout] 3672201b8fa61f91c2e454bb405994f259099a9fc2e80bc7e7ddd2b21daf1c5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2ce21f9101c4809ef7e50bd7943e396a28994fb0ddd1d509fb678b3ac0440f3
[INFO] running `Command { std: "docker" "start" "-a" "b2ce21f9101c4809ef7e50bd7943e396a28994fb0ddd1d509fb678b3ac0440f3", 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 3.85s
[INFO] running `Command { std: "docker" "inspect" "b2ce21f9101c4809ef7e50bd7943e396a28994fb0ddd1d509fb678b3ac0440f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2ce21f9101c4809ef7e50bd7943e396a28994fb0ddd1d509fb678b3ac0440f3", kill_on_drop: false }`
[INFO] [stdout] b2ce21f9101c4809ef7e50bd7943e396a28994fb0ddd1d509fb678b3ac0440f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ba454ce4e9704409168f51367298aa09b0131cec04da3887c5ec521ada3faa81
[INFO] running `Command { std: "docker" "start" "-a" "ba454ce4e9704409168f51367298aa09b0131cec04da3887c5ec521ada3faa81", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/polynomial_roots_calculator-d94ab44867de7aa1)
[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_gcd ... ok
[INFO] [stdout] test polynomial::tests::test_horner ... ok
[INFO] [stdout] test polynomial::tests::test_long_div ... ok
[INFO] [stdout] test polynomial::tests::test_gsfd ... ok
[INFO] [stdout] test polynomial::tests::test_primitive ... 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" "ba454ce4e9704409168f51367298aa09b0131cec04da3887c5ec521ada3faa81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba454ce4e9704409168f51367298aa09b0131cec04da3887c5ec521ada3faa81", kill_on_drop: false }`
[INFO] [stdout] ba454ce4e9704409168f51367298aa09b0131cec04da3887c5ec521ada3faa81