[INFO] fetching crate polynomial-roots 1.0.0...
[INFO] testing polynomial-roots-1.0.0 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate polynomial-roots 1.0.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate polynomial-roots 1.0.0
[INFO] finished tweaking crates.io crate polynomial-roots 1.0.0
[INFO] tweaked toml for crates.io crate polynomial-roots 1.0.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate polynomial-roots 1.0.0 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate polynomial-roots 1.0.0 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] b43f01ddc15349b09c03f8a85b05de12d8edd124159437ca61e6e38253fd16de
[INFO] running `Command { std: "docker" "start" "b43f01ddc15349b09c03f8a85b05de12d8edd124159437ca61e6e38253fd16de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b43f01ddc15349b09c03f8a85b05de12d8edd124159437ca61e6e38253fd16de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b43f01ddc15349b09c03f8a85b05de12d8edd124159437ca61e6e38253fd16de" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b43f01ddc15349b09c03f8a85b05de12d8edd124159437ca61e6e38253fd16de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b43f01ddc15349b09c03f8a85b05de12d8edd124159437ca61e6e38253fd16de" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling polynomial-roots v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/polynomials.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     &self,
[INFO] [stdout]    |     ^^^^^ the lifetime is elided here
[INFO] [stdout] 49 |   ) -> std::collections::linked_list::Iter<f32> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 49 |   ) -> std::collections::linked_list::Iter<'_, f32> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "b43f01ddc15349b09c03f8a85b05de12d8edd124159437ca61e6e38253fd16de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b43f01ddc15349b09c03f8a85b05de12d8edd124159437ca61e6e38253fd16de" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/polynomials.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     &self,
[INFO] [stdout]    |     ^^^^^ the lifetime is elided here
[INFO] [stdout] 49 |   ) -> std::collections::linked_list::Iter<f32> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 49 |   ) -> std::collections::linked_list::Iter<'_, f32> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling polynomial-roots v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/polynomials.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     &self,
[INFO] [stdout]    |     ^^^^^ the lifetime is elided here
[INFO] [stdout] 49 |   ) -> std::collections::linked_list::Iter<f32> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 49 |   ) -> std::collections::linked_list::Iter<'_, f32> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "b43f01ddc15349b09c03f8a85b05de12d8edd124159437ca61e6e38253fd16de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b43f01ddc15349b09c03f8a85b05de12d8edd124159437ca61e6e38253fd16de" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/polynomials.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     &self,
[INFO] [stderr]    |     ^^^^^ the lifetime is elided here
[INFO] [stderr] 49 |   ) -> std::collections::linked_list::Iter<f32> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 49 |   ) -> std::collections::linked_list::Iter<'_, f32> {
[INFO] [stderr]    |                                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: `polynomial-roots` (lib) generated 1 warning (run `cargo fix --lib -p polynomial-roots` to apply 1 suggestion)
[INFO] [stderr] warning: `polynomial-roots` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/build/polynomial-roots/98fe803c8b234d0d/out/polynomial_roots-98fe803c8b234d0d)
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test math::tests::zero ... ok
[INFO] [stdout] test polynomials::tests::evaluate_polynomial ... FAILED
[INFO] [stdout] test math::tests::negative_number ... ok
[INFO] [stdout] test linear::tests::polynomial_with_one_root ... ok
[INFO] [stdout] test polynomials::tests::create_polynomial ... ok
[INFO] [stdout] test linear::tests::polynomial_with_two_roots ... ok
[INFO] [stdout] test math::tests::positive_number ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- polynomials::tests::evaluate_polynomial stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'polynomials::tests::evaluate_polynomial' (210) panicked at src/polynomials.rs:89:5:
[INFO] [stdout] assertion failed: crate::math::is_zero(polynomial.get_value_at(-1.0) + 4.0)
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x562c535cda01 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x562c535e23da - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x562c535d1c1c - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x562c535a9e66 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x562c535c6099 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x562c53562740 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stdout]    6:     0x562c535c6252 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x562c535a9f44 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x562c535a2c29 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x562c535aab1d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]   10:     0x562c535e2b0c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   11:     0x562c535e2ad2 - core[a373ad73a504971]::panicking::panic
[INFO] [stdout]   12:     0x562c5355564a - <polynomial_roots[1d6c5954bbce6eb0]::polynomials::tests::evaluate_polynomial::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   13:     0x562c53555b8b - test[aada8e7e76ba119b]::__rust_begin_short_backtrace::<core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>, fn() -> core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>>
[INFO] [stdout]   14:     0x562c53562d65 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   15:     0x562c5355c654 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stdout]   16:     0x562c53565df2 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   17:     0x562c535cd25f - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   18:     0x79b5b4016dfa - <unknown>
[INFO] [stdout]   19:     0x79b5b40aa3d4 - clone
[INFO] [stdout]   20:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     polynomials::tests::evaluate_polynomial
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 6 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b43f01ddc15349b09c03f8a85b05de12d8edd124159437ca61e6e38253fd16de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b43f01ddc15349b09c03f8a85b05de12d8edd124159437ca61e6e38253fd16de", kill_on_drop: false }`
[INFO] [stdout] b43f01ddc15349b09c03f8a85b05de12d8edd124159437ca61e6e38253fd16de
