[INFO] cloning repository https://github.com/dharasim/semiring
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dharasim/semiring" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdharasim%2Fsemiring", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdharasim%2Fsemiring'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6b11660da3136637ba905de97c8df02e89f75b58
[INFO] testing dharasim/semiring against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdharasim%2Fsemiring" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dharasim/semiring 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 git repo https://github.com/dharasim/semiring
[INFO] finished tweaking git repo https://github.com/dharasim/semiring
[INFO] tweaked toml for git repo https://github.com/dharasim/semiring written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/dharasim/semiring 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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 1bde4147ded7e2c0a74123298803e14d566e399d85079554b9b25386e305ac12
[INFO] running `Command { std: "docker" "start" "-a" "1bde4147ded7e2c0a74123298803e14d566e399d85079554b9b25386e305ac12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1bde4147ded7e2c0a74123298803e14d566e399d85079554b9b25386e305ac12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bde4147ded7e2c0a74123298803e14d566e399d85079554b9b25386e305ac12", kill_on_drop: false }`
[INFO] [stdout] 1bde4147ded7e2c0a74123298803e14d566e399d85079554b9b25386e305ac12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] c820d15f4b92c891eed0e9fffd6593643e689a89b895e2a9a7b7412161f44588
[INFO] running `Command { std: "docker" "start" "-a" "c820d15f4b92c891eed0e9fffd6593643e689a89b895e2a9a7b7412161f44588", kill_on_drop: false }`
[INFO] [stderr]    Compiling spin v0.5.0
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]    Compiling getrandom v0.1.6
[INFO] [stderr]    Compiling rand_core v0.5.0
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.0
[INFO] [stderr]    Compiling rust_stuff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.15s
[INFO] running `Command { std: "docker" "inspect" "c820d15f4b92c891eed0e9fffd6593643e689a89b895e2a9a7b7412161f44588", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c820d15f4b92c891eed0e9fffd6593643e689a89b895e2a9a7b7412161f44588", kill_on_drop: false }`
[INFO] [stdout] c820d15f4b92c891eed0e9fffd6593643e689a89b895e2a9a7b7412161f44588
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 60adbbcadd20e53c7fb903ff71cf961de38a13cc3763129c51e2568e08e593ff
[INFO] running `Command { std: "docker" "start" "-a" "60adbbcadd20e53c7fb903ff71cf961de38a13cc3763129c51e2568e08e593ff", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_stuff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:147:36
[INFO] [stdout]     |
[INFO] [stdout] 147 |         enum Symbol { Start, Leaf };
[INFO] [stdout]     |                                    ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` 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 1.19s
[INFO] running `Command { std: "docker" "inspect" "60adbbcadd20e53c7fb903ff71cf961de38a13cc3763129c51e2568e08e593ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60adbbcadd20e53c7fb903ff71cf961de38a13cc3763129c51e2568e08e593ff", kill_on_drop: false }`
[INFO] [stdout] 60adbbcadd20e53c7fb903ff71cf961de38a13cc3763129c51e2568e08e593ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] b6dfbeb3302d767ac67b6b3404e180c5a54fe973245238baf8b35f3ce7895441
[INFO] running `Command { std: "docker" "start" "-a" "b6dfbeb3302d767ac67b6b3404e180c5a54fe973245238baf8b35f3ce7895441", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/main.rs:147:36
[INFO] [stderr]     |
[INFO] [stderr] 147 |         enum Symbol { Start, Leaf };
[INFO] [stderr]     |                                    ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_stuff` (bin "rust_stuff" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_stuff-38021da08608e424)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test parser::test_get2_mut ... ok
[INFO] [stdout] test semiring::free::tests::free_semiring ... ok
[INFO] [stdout] test lazymap::fibo_test ... ok
[INFO] [stdout] test parser::test_union_with_mut ... ok
[INFO] [stdout] test parser::test_parse ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b6dfbeb3302d767ac67b6b3404e180c5a54fe973245238baf8b35f3ce7895441", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6dfbeb3302d767ac67b6b3404e180c5a54fe973245238baf8b35f3ce7895441", kill_on_drop: false }`
[INFO] [stdout] b6dfbeb3302d767ac67b6b3404e180c5a54fe973245238baf8b35f3ce7895441