[INFO] fetching crate snek 0.3.0...
[INFO] testing snek-0.3.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate snek 0.3.0 into /workspace/builds/worker-56/source
[INFO] validating manifest of crates.io crate snek 0.3.0 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 snek 0.3.0
[INFO] finished tweaking crates.io crate snek 0.3.0
[INFO] tweaked toml for crates.io crate snek 0.3.0 written to /workspace/builds/worker-56/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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] [stdout] 4dcf07014609a22c457cb6b6cb8b7d26a05fb2a049ba6d6fb31fb00e9030c870
[INFO] running `Command { std: "docker" "start" "-a" "4dcf07014609a22c457cb6b6cb8b7d26a05fb2a049ba6d6fb31fb00e9030c870", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4dcf07014609a22c457cb6b6cb8b7d26a05fb2a049ba6d6fb31fb00e9030c870", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dcf07014609a22c457cb6b6cb8b7d26a05fb2a049ba6d6fb31fb00e9030c870", kill_on_drop: false }`
[INFO] [stdout] 4dcf07014609a22c457cb6b6cb8b7d26a05fb2a049ba6d6fb31fb00e9030c870
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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] [stdout] 01465aed1c4da4a906777f7f4d87292279edc12ff3d30cca54f1c8af92d4808f
[INFO] running `Command { std: "docker" "start" "-a" "01465aed1c4da4a906777f7f4d87292279edc12ff3d30cca54f1c8af92d4808f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling snek v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.28s
[INFO] running `Command { std: "docker" "inspect" "01465aed1c4da4a906777f7f4d87292279edc12ff3d30cca54f1c8af92d4808f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01465aed1c4da4a906777f7f4d87292279edc12ff3d30cca54f1c8af92d4808f", kill_on_drop: false }`
[INFO] [stdout] 01465aed1c4da4a906777f7f4d87292279edc12ff3d30cca54f1c8af92d4808f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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] [stdout] 06ebad651cefc8e86a899aab0e411a90674c0bf0338a72eb5096ce7386bd4be8
[INFO] running `Command { std: "docker" "start" "-a" "06ebad651cefc8e86a899aab0e411a90674c0bf0338a72eb5096ce7386bd4be8", kill_on_drop: false }`
[INFO] [stderr]    Compiling snek v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.24s
[INFO] running `Command { std: "docker" "inspect" "06ebad651cefc8e86a899aab0e411a90674c0bf0338a72eb5096ce7386bd4be8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06ebad651cefc8e86a899aab0e411a90674c0bf0338a72eb5096ce7386bd4be8", kill_on_drop: false }`
[INFO] [stdout] 06ebad651cefc8e86a899aab0e411a90674c0bf0338a72eb5096ce7386bd4be8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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] [stdout] 4e1edd543bcdae079254c4245f87f7be665ec0eee37831b7f42b15e6d93960b2
[INFO] running `Command { std: "docker" "start" "-a" "4e1edd543bcdae079254c4245f87f7be665ec0eee37831b7f42b15e6d93960b2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/snek-aebb8074e2826eff)
[INFO] [stdout] 
[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] [stderr]    Doc-tests snek
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/symbol.rs - symbol::Symbol::with (line 55) ... ok
[INFO] [stdout] test src/lib.rs - snek (line 110) ... ok
[INFO] [stdout] test src/snek/mod.rs - snek::Snek (line 49) ... ok
[INFO] [stdout] test src/lib.rs - snek (line 91) ... ok
[INFO] [stdout] test src/lib.rs - (line 32) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.34s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4e1edd543bcdae079254c4245f87f7be665ec0eee37831b7f42b15e6d93960b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e1edd543bcdae079254c4245f87f7be665ec0eee37831b7f42b15e6d93960b2", kill_on_drop: false }`
[INFO] [stdout] 4e1edd543bcdae079254c4245f87f7be665ec0eee37831b7f42b15e6d93960b2