[INFO] fetching crate prec 1.1.0...
[INFO] testing prec-1.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate prec 1.1.0 into /workspace/builds/worker-75/source
[INFO] validating manifest of crates.io crate prec 1.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate prec 1.1.0
[INFO] finished tweaking crates.io crate prec 1.1.0
[INFO] tweaked toml for crates.io crate prec 1.1.0 written to /workspace/builds/worker-75/source/Cargo.toml
[INFO] crate crates.io crate prec 1.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0db8ff2fd6b45ae1f5107db06ca9857cbca067cfa5a0f4bd08de8a42bc14cb64
[INFO] running `Command { std: "docker" "start" "-a" "0db8ff2fd6b45ae1f5107db06ca9857cbca067cfa5a0f4bd08de8a42bc14cb64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0db8ff2fd6b45ae1f5107db06ca9857cbca067cfa5a0f4bd08de8a42bc14cb64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0db8ff2fd6b45ae1f5107db06ca9857cbca067cfa5a0f4bd08de8a42bc14cb64", kill_on_drop: false }`
[INFO] [stdout] 0db8ff2fd6b45ae1f5107db06ca9857cbca067cfa5a0f4bd08de8a42bc14cb64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b64fa06d2c9390dc7a1aebffd1ea0d0a7d3f9fb85178f99931c409a748bb6292
[INFO] running `Command { std: "docker" "start" "-a" "b64fa06d2c9390dc7a1aebffd1ea0d0a7d3f9fb85178f99931c409a748bb6292", kill_on_drop: false }`
[INFO] [stderr]    Compiling prec v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "b64fa06d2c9390dc7a1aebffd1ea0d0a7d3f9fb85178f99931c409a748bb6292", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b64fa06d2c9390dc7a1aebffd1ea0d0a7d3f9fb85178f99931c409a748bb6292", kill_on_drop: false }`
[INFO] [stdout] b64fa06d2c9390dc7a1aebffd1ea0d0a7d3f9fb85178f99931c409a748bb6292
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e38002e97ad600bfcce4be55570d51c9c57c848c9f3ebbac89b3c33961502159
[INFO] running `Command { std: "docker" "start" "-a" "e38002e97ad600bfcce4be55570d51c9c57c848c9f3ebbac89b3c33961502159", kill_on_drop: false }`
[INFO] [stderr]    Compiling prec v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Paren`
[INFO] [stdout]    --> src/lib.rs:336:3
[INFO] [stdout]     |
[INFO] [stdout] 336 |         Paren(Box<Expression<MathOperator, MathToken>>),
[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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `Command { std: "docker" "inspect" "e38002e97ad600bfcce4be55570d51c9c57c848c9f3ebbac89b3c33961502159", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e38002e97ad600bfcce4be55570d51c9c57c848c9f3ebbac89b3c33961502159", kill_on_drop: false }`
[INFO] [stdout] e38002e97ad600bfcce4be55570d51c9c57c848c9f3ebbac89b3c33961502159
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e5a7bb5b6641578af1684fddb0a1d5d08976866ded6b64bd9594ca4f5f95a2fc
[INFO] running `Command { std: "docker" "start" "-a" "e5a7bb5b6641578af1684fddb0a1d5d08976866ded6b64bd9594ca4f5f95a2fc", kill_on_drop: false }`
[INFO] [stderr] warning: variant is never constructed: `Paren`
[INFO] [stderr]    --> src/lib.rs:336:3
[INFO] [stderr]     |
[INFO] [stderr] 336 |         Paren(Box<Expression<MathOperator, MathToken>>),
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `prec` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/prec-8ffffa4404ebc32d)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test::proces_complex ... ok
[INFO] [stdout] test test::process ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests prec
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - Climber<Op, To, Re, Err, Ctx>::new (line 83) ... ignored
[INFO] [stdout] test src/lib.rs - Climber<Op, To, Re, Err, Ctx>::process (line 138) ... ignored
[INFO] [stdout] test src/lib.rs - Expression<Op, To>::new (line 259) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 3 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e5a7bb5b6641578af1684fddb0a1d5d08976866ded6b64bd9594ca4f5f95a2fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5a7bb5b6641578af1684fddb0a1d5d08976866ded6b64bd9594ca4f5f95a2fc", kill_on_drop: false }`
[INFO] [stdout] e5a7bb5b6641578af1684fddb0a1d5d08976866ded6b64bd9594ca4f5f95a2fc