[INFO] cloning repository https://github.com/SpontanCombust/polynomial_calculator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SpontanCombust/polynomial_calculator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpontanCombust%2Fpolynomial_calculator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpontanCombust%2Fpolynomial_calculator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9c5a7d7e78d91c1bbdc4b61e0111b55395313c6a
[INFO] testing SpontanCombust/polynomial_calculator against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpontanCombust%2Fpolynomial_calculator" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SpontanCombust/polynomial_calculator on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SpontanCombust/polynomial_calculator
[INFO] finished tweaking git repo https://github.com/SpontanCombust/polynomial_calculator
[INFO] tweaked toml for git repo https://github.com/SpontanCombust/polynomial_calculator written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/SpontanCombust/polynomial_calculator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded float-cmp v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94413bf85630ecf1b7c8d376dcb66b94c7156227ccfd360326ea1cdcabe89a53
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "94413bf85630ecf1b7c8d376dcb66b94c7156227ccfd360326ea1cdcabe89a53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94413bf85630ecf1b7c8d376dcb66b94c7156227ccfd360326ea1cdcabe89a53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94413bf85630ecf1b7c8d376dcb66b94c7156227ccfd360326ea1cdcabe89a53", kill_on_drop: false }`
[INFO] [stdout] 94413bf85630ecf1b7c8d376dcb66b94c7156227ccfd360326ea1cdcabe89a53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 93cad854a1f57992445ee3026ca62c9ee3ba1ab3615c1761c2ae4f81db35bb3c
[INFO] running `Command { std: "docker" "start" "-a" "93cad854a1f57992445ee3026ca62c9ee3ba1ab3615c1761c2ae4f81db35bb3c", kill_on_drop: false }`
[INFO] [stderr]    Compiling float-cmp v0.9.0
[INFO] [stderr]    Compiling polynomial_calculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `test_lagrange`
[INFO] [stdout]   --> src/main.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn test_lagrange() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `simplify_expression`
[INFO] [stdout]  --> src/expression.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn simplify_expression( expr: &mut PolynomialExpression ) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `multiply_expression_by_operand`
[INFO] [stdout]   --> src/expression.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn multiply_expression_by_operand( op: &Operand, expr: &PolynomialExpression, simplify_output: bool ) -> PolynomialExpression {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `multiply_expressions`
[INFO] [stdout]   --> src/expression.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 | pub fn multiply_expressions( expr1: &PolynomialExpression, expr2: &PolynomialExpression ) -> PolynomialExpression {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `interpolate_lagrange`
[INFO] [stdout]   --> src/interpolation.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn interpolate_lagrange( x: &[f32], y: &[f32] ) -> PolynomialExpression {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.72s
[INFO] running `Command { std: "docker" "inspect" "93cad854a1f57992445ee3026ca62c9ee3ba1ab3615c1761c2ae4f81db35bb3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93cad854a1f57992445ee3026ca62c9ee3ba1ab3615c1761c2ae4f81db35bb3c", kill_on_drop: false }`
[INFO] [stdout] 93cad854a1f57992445ee3026ca62c9ee3ba1ab3615c1761c2ae4f81db35bb3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ac81ff61c133f04661d1d88a67009b20e84739915c916780ea02d69d9dba58d8
[INFO] running `Command { std: "docker" "start" "-a" "ac81ff61c133f04661d1d88a67009b20e84739915c916780ea02d69d9dba58d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling polynomial_calculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `test_lagrange`
[INFO] [stdout]   --> src/main.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn test_lagrange() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `simplify_expression`
[INFO] [stdout]  --> src/expression.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn simplify_expression( expr: &mut PolynomialExpression ) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `multiply_expression_by_operand`
[INFO] [stdout]   --> src/expression.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn multiply_expression_by_operand( op: &Operand, expr: &PolynomialExpression, simplify_output: bool ) -> PolynomialExpression {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `multiply_expressions`
[INFO] [stdout]   --> src/expression.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 | pub fn multiply_expressions( expr1: &PolynomialExpression, expr2: &PolynomialExpression ) -> PolynomialExpression {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `interpolate_lagrange`
[INFO] [stdout]   --> src/interpolation.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn interpolate_lagrange( x: &[f32], y: &[f32] ) -> PolynomialExpression {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "ac81ff61c133f04661d1d88a67009b20e84739915c916780ea02d69d9dba58d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac81ff61c133f04661d1d88a67009b20e84739915c916780ea02d69d9dba58d8", kill_on_drop: false }`
[INFO] [stdout] ac81ff61c133f04661d1d88a67009b20e84739915c916780ea02d69d9dba58d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 663f692db5f3183de72a97ce199d812eac4c2ea70400677aa683fcd280577df0
[INFO] running `Command { std: "docker" "start" "-a" "663f692db5f3183de72a97ce199d812eac4c2ea70400677aa683fcd280577df0", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `test_lagrange`
[INFO] [stderr]   --> src/main.rs:13:4
[INFO] [stderr]    |
[INFO] [stderr] 13 | fn test_lagrange() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `simplify_expression`
[INFO] [stderr]  --> src/expression.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn simplify_expression( expr: &mut PolynomialExpression ) {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `multiply_expression_by_operand`
[INFO] [stderr]   --> src/expression.rs:54:8
[INFO] [stderr]    |
[INFO] [stderr] 54 | pub fn multiply_expression_by_operand( op: &Operand, expr: &PolynomialExpression, simplify_output: bool ) -> PolynomialExpression {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `multiply_expressions`
[INFO] [stderr]   --> src/expression.rs:72:8
[INFO] [stderr]    |
[INFO] [stderr] 72 | pub fn multiply_expressions( expr1: &PolynomialExpression, expr2: &PolynomialExpression ) -> PolynomialExpression {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `interpolate_lagrange`
[INFO] [stderr]   --> src/interpolation.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn interpolate_lagrange( x: &[f32], y: &[f32] ) -> PolynomialExpression {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `polynomial_calculator` (bin "polynomial_calculator" test) generated 5 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/polynomial_calculator-12f7c1633f72e800)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "663f692db5f3183de72a97ce199d812eac4c2ea70400677aa683fcd280577df0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "663f692db5f3183de72a97ce199d812eac4c2ea70400677aa683fcd280577df0", kill_on_drop: false }`
[INFO] [stdout] 663f692db5f3183de72a97ce199d812eac4c2ea70400677aa683fcd280577df0