[INFO] cloning repository https://github.com/jslauthor/programmer_math
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jslauthor/programmer_math" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjslauthor%2Fprogrammer_math", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjslauthor%2Fprogrammer_math'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aecd71b8199b10d713fdf65a6fa48f25a47e4a0c
[INFO] testing jslauthor/programmer_math against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjslauthor%2Fprogrammer_math" "/workspace/builds/worker-39/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-39/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jslauthor/programmer_math on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jslauthor/programmer_math
[INFO] finished tweaking git repo https://github.com/jslauthor/programmer_math
[INFO] tweaked toml for git repo https://github.com/jslauthor/programmer_math written to /workspace/builds/worker-39/source/Cargo.toml
[INFO] crate git repo https://github.com/jslauthor/programmer_math already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f8b6bd0fc53f4961da5fdd5fdafb1da0e5f4e8b16e1488c525d846960353b060
[INFO] running `Command { std: "docker" "start" "-a" "f8b6bd0fc53f4961da5fdd5fdafb1da0e5f4e8b16e1488c525d846960353b060", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8b6bd0fc53f4961da5fdd5fdafb1da0e5f4e8b16e1488c525d846960353b060", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8b6bd0fc53f4961da5fdd5fdafb1da0e5f4e8b16e1488c525d846960353b060", kill_on_drop: false }`
[INFO] [stdout] f8b6bd0fc53f4961da5fdd5fdafb1da0e5f4e8b16e1488c525d846960353b060
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 135ffa2786a1bdd2c5d2abed25913cc5e5e097a27b52ac92e2423bd9e10ed8f6
[INFO] running `Command { std: "docker" "start" "-a" "135ffa2786a1bdd2c5d2abed25913cc5e5e097a27b52ac92e2423bd9e10ed8f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling programmer_math v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `y`
[INFO] [stdout]   --> src/poly/mod.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 |   pub fn y(&self) -> f64 {
[INFO] [stdout]    |          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.43s
[INFO] running `Command { std: "docker" "inspect" "135ffa2786a1bdd2c5d2abed25913cc5e5e097a27b52ac92e2423bd9e10ed8f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "135ffa2786a1bdd2c5d2abed25913cc5e5e097a27b52ac92e2423bd9e10ed8f6", kill_on_drop: false }`
[INFO] [stdout] 135ffa2786a1bdd2c5d2abed25913cc5e5e097a27b52ac92e2423bd9e10ed8f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0dd484f3834f2e2b380fd7a9faac2bf29e953b16ae79e3b43d64595f69239ad7
[INFO] running `Command { std: "docker" "start" "-a" "0dd484f3834f2e2b380fd7a9faac2bf29e953b16ae79e3b43d64595f69239ad7", kill_on_drop: false }`
[INFO] [stderr]    Compiling programmer_math v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `y`
[INFO] [stdout]   --> src/poly/mod.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 |   pub fn y(&self) -> f64 {
[INFO] [stdout]    |          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `Command { std: "docker" "inspect" "0dd484f3834f2e2b380fd7a9faac2bf29e953b16ae79e3b43d64595f69239ad7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dd484f3834f2e2b380fd7a9faac2bf29e953b16ae79e3b43d64595f69239ad7", kill_on_drop: false }`
[INFO] [stdout] 0dd484f3834f2e2b380fd7a9faac2bf29e953b16ae79e3b43d64595f69239ad7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 74720f73d41fc379333a376e9a3d8ffe979c600ec9835421b16b5a668bfb6693
[INFO] running `Command { std: "docker" "start" "-a" "74720f73d41fc379333a376e9a3d8ffe979c600ec9835421b16b5a668bfb6693", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `y`
[INFO] [stderr]   --> src/poly/mod.rs:16:10
[INFO] [stderr]    |
[INFO] [stderr] 16 |   pub fn y(&self) -> f64 {
[INFO] [stderr]    |          ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `programmer_math` (bin "programmer_math" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/programmer_math-0b41711dda8ecd23)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test poly::polynomial::tests::mul ... ok
[INFO] [stdout] test poly::polynomial::tests::eval ... ok
[INFO] [stdout] test poly::polynomial::tests::new ... ok
[INFO] [stdout] test poly::polynomial::tests::neg_add_sub ... ok
[INFO] [stdout] test poly::polynomial::tests::pretty ... ok
[INFO] [stdout] test tests::interpolate_should_accurately_evaluate_points ... ok
[INFO] [stdout] test tests::single_term_should_return_one_term_of_interpolated_points ... ok
[INFO] [stdout] test tests::interpolate_points_should_contain_unique_x_values - should panic ... ok
[INFO] [stdout] test tests::interpolate_should_panic_with_zero_points - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/programmer_math-894532be3a3be977)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test poly::polynomial::tests::neg_add_sub ... ok
[INFO] [stdout] test poly::polynomial::tests::eval ... ok
[INFO] [stdout] test poly::polynomial::tests::pretty ... ok
[INFO] [stdout] test poly::polynomial::tests::mul ... ok
[INFO] [stdout] test poly::polynomial::tests::new ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests programmer_math
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/poly/polynomial.rs - poly::polynomial::Polynomial<T>::new (line 28) ... FAILED
[INFO] [stdout] test src/poly/polynomial.rs - poly::polynomial::Polynomial<T>::eval (line 45) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/poly/polynomial.rs - poly::polynomial::Polynomial<T>::new (line 28) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `polynomial`
[INFO] [stdout]  --> src/poly/polynomial.rs:29:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use polynomial::Polynomial;
[INFO] [stdout]   |     ^^^^^^^^^^ help: a similar path exists: `programmer_math::polynomial`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/poly/polynomial.rs - poly::polynomial::Polynomial<T>::eval (line 45) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `polynomial`
[INFO] [stdout]  --> src/poly/polynomial.rs:46:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use polynomial::Polynomial;
[INFO] [stdout]   |     ^^^^^^^^^^ help: a similar path exists: `programmer_math::polynomial`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/poly/polynomial.rs - poly::polynomial::Polynomial<T>::eval (line 45)
[INFO] [stdout]     src/poly/polynomial.rs - poly::polynomial::Polynomial<T>::new (line 28)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.20s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "74720f73d41fc379333a376e9a3d8ffe979c600ec9835421b16b5a668bfb6693", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74720f73d41fc379333a376e9a3d8ffe979c600ec9835421b16b5a668bfb6693", kill_on_drop: false }`
[INFO] [stdout] 74720f73d41fc379333a376e9a3d8ffe979c600ec9835421b16b5a668bfb6693