[INFO] fetching crate symbolic_polynomials 0.1.0...
[INFO] checking symbolic_polynomials-0.1.0 against try#bb9dbf1d07454a99066eabaabd5819851281494b for pr-80920
[INFO] extracting crate symbolic_polynomials 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate symbolic_polynomials 0.1.0 on toolchain bb9dbf1d07454a99066eabaabd5819851281494b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate symbolic_polynomials 0.1.0
[INFO] finished tweaking crates.io crate symbolic_polynomials 0.1.0
[INFO] tweaked toml for crates.io crate symbolic_polynomials 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 003ea31f8eca4082141a8c155c03eb37ad147b1ed410cda1956d0298ca58b6cd
[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" "003ea31f8eca4082141a8c155c03eb37ad147b1ed410cda1956d0298ca58b6cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "003ea31f8eca4082141a8c155c03eb37ad147b1ed410cda1956d0298ca58b6cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "003ea31f8eca4082141a8c155c03eb37ad147b1ed410cda1956d0298ca58b6cd", kill_on_drop: false }`
[INFO] [stdout] 003ea31f8eca4082141a8c155c03eb37ad147b1ed410cda1956d0298ca58b6cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa8084fdbebcead5fc8af12917f785a00d3b81ab367f88e54ccf627cb0d307eb
[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" "fa8084fdbebcead5fc8af12917f785a00d3b81ab367f88e54ccf627cb0d307eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking symbolic_polynomials v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type alias is never used: `TestMonomial`
[INFO] [stdout]  --> tests/functions.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | type TestMonomial = Monomial<String, i64, u8>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `TestPolynomial`
[INFO] [stdout]  --> tests/monomial.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | type TestPolynomial = Polynomial<String, i64, u8>;
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.80s
[INFO] running `Command { std: "docker" "inspect" "fa8084fdbebcead5fc8af12917f785a00d3b81ab367f88e54ccf627cb0d307eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa8084fdbebcead5fc8af12917f785a00d3b81ab367f88e54ccf627cb0d307eb", kill_on_drop: false }`
[INFO] [stdout] fa8084fdbebcead5fc8af12917f785a00d3b81ab367f88e54ccf627cb0d307eb