[INFO] fetching crate polynomial-roots 1.0.0...
[INFO] testing polynomial-roots-1.0.0 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate polynomial-roots 1.0.0 into /workspace/builds/worker-3-tc1/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-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate polynomial-roots 1.0.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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] ad9ea2c7da2ca79bc05601c10a259074e5e5f5e90c7c3916184380bf3d2ca2c6
[INFO] running `Command { std: "docker" "start" "ad9ea2c7da2ca79bc05601c10a259074e5e5f5e90c7c3916184380bf3d2ca2c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad9ea2c7da2ca79bc05601c10a259074e5e5f5e90c7c3916184380bf3d2ca2c6", 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" "ad9ea2c7da2ca79bc05601c10a259074e5e5f5e90c7c3916184380bf3d2ca2c6" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad9ea2c7da2ca79bc05601c10a259074e5e5f5e90c7c3916184380bf3d2ca2c6", 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" "ad9ea2c7da2ca79bc05601c10a259074e5e5f5e90c7c3916184380bf3d2ca2c6" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "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 0.58s
[INFO] running `Command { std: "docker" "inspect" "ad9ea2c7da2ca79bc05601c10a259074e5e5f5e90c7c3916184380bf3d2ca2c6", 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" "ad9ea2c7da2ca79bc05601c10a259074e5e5f5e90c7c3916184380bf3d2ca2c6" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "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 0.52s
[INFO] running `Command { std: "docker" "inspect" "ad9ea2c7da2ca79bc05601c10a259074e5e5f5e90c7c3916184380bf3d2ca2c6", 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" "ad9ea2c7da2ca79bc05601c10a259074e5e5f5e90c7c3916184380bf3d2ca2c6" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "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 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/deps/polynomial_roots-98fe803c8b234d0d)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test linear::tests::polynomial_with_two_roots ... ok
[INFO] [stdout] test math::tests::positive_number ... ok
[INFO] [stdout] test math::tests::negative_number ... ok
[INFO] [stdout] test linear::tests::polynomial_with_one_root ... ok
[INFO] [stdout] test math::tests::zero ... ok
[INFO] [stdout] test polynomials::tests::create_polynomial ... ok
[INFO] [stdout] test polynomials::tests::evaluate_polynomial ... FAILED
[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:     0x60bc6d955cd1 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x60bc6d96a98a - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    2:     0x60bc6d95a16c - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x60bc6d9322c6 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x60bc6d94e439 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]    5:     0x60bc6d8ea8c0 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]    6:     0x60bc6d94e5f2 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x60bc6d9323a4 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x60bc6d92b0f9 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x60bc6d932f6d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]   10:     0x60bc6d96b0bc - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]   11:     0x60bc6d96b082 - core[df12db4294e9bfd3]::panicking::panic
[INFO] [stdout]   12:     0x60bc6d8dd66a - <polynomial_roots[33abfa66154ef2c4]::polynomials::tests::evaluate_polynomial::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   13:     0x60bc6d8ddbab - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]   14:     0x60bc6d8eb215 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]   15:     0x60bc6d8e4ad4 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]   16:     0x60bc6d8ee372 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   17:     0x60bc6d9555a9 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   18:     0x70a925a78dfa - <unknown>
[INFO] [stdout]   19:     0x70a925b0c3d4 - 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] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "ad9ea2c7da2ca79bc05601c10a259074e5e5f5e90c7c3916184380bf3d2ca2c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad9ea2c7da2ca79bc05601c10a259074e5e5f5e90c7c3916184380bf3d2ca2c6", kill_on_drop: false }`
[INFO] [stdout] ad9ea2c7da2ca79bc05601c10a259074e5e5f5e90c7c3916184380bf3d2ca2c6
