[INFO] fetching crate mathengine 0.1.0...
[INFO] testing mathengine-0.1.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate mathengine 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate mathengine 0.1.0
[INFO] finished tweaking crates.io crate mathengine 0.1.0
[INFO] tweaked toml for crates.io crate mathengine 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mathengine 0.1.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mathengine 0.1.0 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d21dc8e5b0e560345437923045a56b58faab981bee8062d62b43d1b98f695c1f
[INFO] running `Command { std: "docker" "start" "-a" "d21dc8e5b0e560345437923045a56b58faab981bee8062d62b43d1b98f695c1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d21dc8e5b0e560345437923045a56b58faab981bee8062d62b43d1b98f695c1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d21dc8e5b0e560345437923045a56b58faab981bee8062d62b43d1b98f695c1f", kill_on_drop: false }`
[INFO] [stdout] d21dc8e5b0e560345437923045a56b58faab981bee8062d62b43d1b98f695c1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c465924d5df460190129bb7290442ce45c1204bafaad3036b1620190b2035de
[INFO] running `Command { std: "docker" "start" "-a" "5c465924d5df460190129bb7290442ce45c1204bafaad3036b1620190b2035de", kill_on_drop: false }`
[INFO] [stderr]    Compiling mathengine-units v0.1.0
[INFO] [stderr]    Compiling mathengine-lexer v0.1.0
[INFO] [stderr]    Compiling mathengine-parser v0.1.0
[INFO] [stderr]    Compiling mathengine-evaluator v0.1.0
[INFO] [stderr]    Compiling mathengine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "5c465924d5df460190129bb7290442ce45c1204bafaad3036b1620190b2035de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c465924d5df460190129bb7290442ce45c1204bafaad3036b1620190b2035de", kill_on_drop: false }`
[INFO] [stdout] 5c465924d5df460190129bb7290442ce45c1204bafaad3036b1620190b2035de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7906e4187a55aa4e142caf10cb4c08dbaf9a220b5b3547557113276e0a7eee7
[INFO] running `Command { std: "docker" "start" "-a" "b7906e4187a55aa4e142caf10cb4c08dbaf9a220b5b3547557113276e0a7eee7", kill_on_drop: false }`
[INFO] [stderr]    Compiling mathengine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "b7906e4187a55aa4e142caf10cb4c08dbaf9a220b5b3547557113276e0a7eee7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7906e4187a55aa4e142caf10cb4c08dbaf9a220b5b3547557113276e0a7eee7", kill_on_drop: false }`
[INFO] [stdout] b7906e4187a55aa4e142caf10cb4c08dbaf9a220b5b3547557113276e0a7eee7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1ba78721421d4fe85c1b1ca12421542704050de774e0b3e4bf794b1ae845a6da
[INFO] running `Command { std: "docker" "start" "-a" "1ba78721421d4fe85c1b1ca12421542704050de774e0b3e4bf794b1ae845a6da", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mathengine-45496e60faa14787)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mathengine
[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] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - evaluate_expression (line 66) ... ok
[INFO] [stdout] test src/lib.rs - evaluate_expression (line 74) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.45s; merged doctests compilation took 0.44s
[INFO] running `Command { std: "docker" "inspect" "1ba78721421d4fe85c1b1ca12421542704050de774e0b3e4bf794b1ae845a6da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ba78721421d4fe85c1b1ca12421542704050de774e0b3e4bf794b1ae845a6da", kill_on_drop: false }`
[INFO] [stdout] 1ba78721421d4fe85c1b1ca12421542704050de774e0b3e4bf794b1ae845a6da