[INFO] fetching crate safe_unwrap 0.4.1...
[INFO] testing safe_unwrap-0.4.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate safe_unwrap 0.4.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate safe_unwrap 0.4.1 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate safe_unwrap 0.4.1
[INFO] finished tweaking crates.io crate safe_unwrap 0.4.1
[INFO] tweaked toml for crates.io crate safe_unwrap 0.4.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d18504d43f689f4af8c99132bffba613bfef99c9cd1e9112a62338f16415db21
[INFO] running `Command { std: "docker" "start" "-a" "d18504d43f689f4af8c99132bffba613bfef99c9cd1e9112a62338f16415db21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d18504d43f689f4af8c99132bffba613bfef99c9cd1e9112a62338f16415db21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d18504d43f689f4af8c99132bffba613bfef99c9cd1e9112a62338f16415db21", kill_on_drop: false }`
[INFO] [stdout] d18504d43f689f4af8c99132bffba613bfef99c9cd1e9112a62338f16415db21
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8e1f44ccf9dff4ad94b02a2a719d609f2bd7d15ecd977078300e48579c070683
[INFO] running `Command { std: "docker" "start" "-a" "8e1f44ccf9dff4ad94b02a2a719d609f2bd7d15ecd977078300e48579c070683", kill_on_drop: false }`
[INFO] [stderr]    Compiling safe_unwrap v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "8e1f44ccf9dff4ad94b02a2a719d609f2bd7d15ecd977078300e48579c070683", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e1f44ccf9dff4ad94b02a2a719d609f2bd7d15ecd977078300e48579c070683", kill_on_drop: false }`
[INFO] [stdout] 8e1f44ccf9dff4ad94b02a2a719d609f2bd7d15ecd977078300e48579c070683
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 74b0db3c654e980684911e4812587d889b46f4b4e5caea9c8a59bbc987fc28bc
[INFO] running `Command { std: "docker" "start" "-a" "74b0db3c654e980684911e4812587d889b46f4b4e5caea9c8a59bbc987fc28bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling safe_unwrap v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "74b0db3c654e980684911e4812587d889b46f4b4e5caea9c8a59bbc987fc28bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74b0db3c654e980684911e4812587d889b46f4b4e5caea9c8a59bbc987fc28bc", kill_on_drop: false }`
[INFO] [stdout] 74b0db3c654e980684911e4812587d889b46f4b4e5caea9c8a59bbc987fc28bc
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cccec92d20906e2064a025aed4ce3dc275535f8fd1b893ac6373c236ed4bcc83
[INFO] running `Command { std: "docker" "start" "-a" "cccec92d20906e2064a025aed4ce3dc275535f8fd1b893ac6373c236ed4bcc83", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/safe_unwrap-9e4ec963629a5d3b)
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::works_when_ok ... ok
[INFO] [stdout] test tests::trait_works_when_ok ... ok
[INFO] [stdout] test tests::doesnt_work_when_err - should panic ... ok
[INFO] [stdout] test tests::trait_doesnt_work_when_err - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests safe_unwrap
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 10) ... ok
[INFO] [stdout] test src/lib.rs - (line 31) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.50s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cccec92d20906e2064a025aed4ce3dc275535f8fd1b893ac6373c236ed4bcc83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cccec92d20906e2064a025aed4ce3dc275535f8fd1b893ac6373c236ed4bcc83", kill_on_drop: false }`
[INFO] [stdout] cccec92d20906e2064a025aed4ce3dc275535f8fd1b893ac6373c236ed4bcc83