[INFO] fetching crate polynomials 0.2.4...
[INFO] testing polynomials-0.2.4 against 1.49.0 for beta-1.50-1
[INFO] extracting crate polynomials 0.2.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate polynomials 0.2.4 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate polynomials 0.2.4
[INFO] finished tweaking crates.io crate polynomials 0.2.4
[INFO] tweaked toml for crates.io crate polynomials 0.2.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bb9212968d652ce926bef2dcc3164b0615dc16bd1c23378316915690827dd585
[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" "bb9212968d652ce926bef2dcc3164b0615dc16bd1c23378316915690827dd585", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb9212968d652ce926bef2dcc3164b0615dc16bd1c23378316915690827dd585", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb9212968d652ce926bef2dcc3164b0615dc16bd1c23378316915690827dd585", kill_on_drop: false }`
[INFO] [stdout] bb9212968d652ce926bef2dcc3164b0615dc16bd1c23378316915690827dd585
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18defed0a53085a6de5954d4fda70842c9ffbbfe548447f0a22103eac5d084e7
[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" "18defed0a53085a6de5954d4fda70842c9ffbbfe548447f0a22103eac5d084e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling polynomials v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.39s
[INFO] running `Command { std: "docker" "inspect" "18defed0a53085a6de5954d4fda70842c9ffbbfe548447f0a22103eac5d084e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18defed0a53085a6de5954d4fda70842c9ffbbfe548447f0a22103eac5d084e7", kill_on_drop: false }`
[INFO] [stdout] 18defed0a53085a6de5954d4fda70842c9ffbbfe548447f0a22103eac5d084e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f1933c41da5deeb30c9e74bd09c0d38046f3e7d4f0ac9b3a8dbb06e4c17fab6
[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" "9f1933c41da5deeb30c9e74bd09c0d38046f3e7d4f0ac9b3a8dbb06e4c17fab6", kill_on_drop: false }`
[INFO] [stderr]    Compiling polynomials v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "9f1933c41da5deeb30c9e74bd09c0d38046f3e7d4f0ac9b3a8dbb06e4c17fab6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f1933c41da5deeb30c9e74bd09c0d38046f3e7d4f0ac9b3a8dbb06e4c17fab6", kill_on_drop: false }`
[INFO] [stdout] 9f1933c41da5deeb30c9e74bd09c0d38046f3e7d4f0ac9b3a8dbb06e4c17fab6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 19483c9b7d7667edadefdfd06f99869c8c9fb59bae154803edc412d89f990c62
[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" "19483c9b7d7667edadefdfd06f99869c8c9fb59bae154803edc412d89f990c62", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/polynomials-9ea7caffd1a1ef1a
[INFO] [stdout] running 12 tests
[INFO] [stdout] test tests::equality ... ok
[INFO] [stdout] test tests::mul ... ok
[INFO] [stdout] test tests::eval ... ok
[INFO] [stdout] test tests::iter ... ok
[INFO] [stdout] test tests::mul_assign ... ok
[INFO] [stdout] test tests::sub_assign ... ok
[INFO] [stdout] test tests::add_assign ... ok
[INFO] [stdout] test tests::degree ... ok
[INFO] [stdout] test tests::div_by_value ... ok
[INFO] [stdout] test tests::add ... ok
[INFO] [stdout] test tests::mul_by_value ... ok
[INFO] [stdout] test tests::sub ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests polynomials
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test src/lib.rs - Polynomial<T>::pop (line 55) ... ok
[INFO] [stdout] test src/lib.rs - Polynomial<T>::degree (line 71) ... ok
[INFO] [stdout] test src/lib.rs - Polynomial<T> (line 292) ... ok
[INFO] [stdout] test src/lib.rs - Polynomial<T> (line 163) ... ok
[INFO] [stdout] test src/lib.rs - poly (line 425) ... ok
[INFO] [stdout] test src/lib.rs - poly (line 413) ... ok
[INFO] [stdout] test src/lib.rs - Polynomial<T>::eval (line 98) ... ok
[INFO] [stdout] test src/lib.rs - Polynomial (line 20) ... ok
[INFO] [stdout] test src/lib.rs - Polynomial<T> (line 353) ... ok
[INFO] [stdout] test src/lib.rs - Polynomial<T> (line 209) ... ok
[INFO] [stdout] test src/lib.rs - Polynomial<T>::push (line 41) ... ok
[INFO] [stdout] test src/lib.rs - Polynomial<T> (line 256) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "19483c9b7d7667edadefdfd06f99869c8c9fb59bae154803edc412d89f990c62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19483c9b7d7667edadefdfd06f99869c8c9fb59bae154803edc412d89f990c62", kill_on_drop: false }`
[INFO] [stdout] 19483c9b7d7667edadefdfd06f99869c8c9fb59bae154803edc412d89f990c62