[INFO] fetching crate little-engine 0.1.0...
[INFO] testing little-engine-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate little-engine 0.1.0 into /workspace/builds/worker-37/source
[INFO] validating manifest of crates.io crate little-engine 0.1.0 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 little-engine 0.1.0
[INFO] finished tweaking crates.io crate little-engine 0.1.0
[INFO] tweaked toml for crates.io crate little-engine 0.1.0 written to /workspace/builds/worker-37/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-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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] 7a201db3ece6b0c54d8f2ea159884e2f2647876dfb095d1d0750639efee4725b
[INFO] running `Command { std: "docker" "start" "-a" "7a201db3ece6b0c54d8f2ea159884e2f2647876dfb095d1d0750639efee4725b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a201db3ece6b0c54d8f2ea159884e2f2647876dfb095d1d0750639efee4725b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a201db3ece6b0c54d8f2ea159884e2f2647876dfb095d1d0750639efee4725b", kill_on_drop: false }`
[INFO] [stdout] 7a201db3ece6b0c54d8f2ea159884e2f2647876dfb095d1d0750639efee4725b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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] 16feaae4e5148957b92c6bfb95016fa660c7d628bd57643cd19a0edae4c7e01a
[INFO] running `Command { std: "docker" "start" "-a" "16feaae4e5148957b92c6bfb95016fa660c7d628bd57643cd19a0edae4c7e01a", kill_on_drop: false }`
[INFO] [stderr]    Compiling little-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "16feaae4e5148957b92c6bfb95016fa660c7d628bd57643cd19a0edae4c7e01a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16feaae4e5148957b92c6bfb95016fa660c7d628bd57643cd19a0edae4c7e01a", kill_on_drop: false }`
[INFO] [stdout] 16feaae4e5148957b92c6bfb95016fa660c7d628bd57643cd19a0edae4c7e01a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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] d97d57fa87b45d0c4b034304f0d3553e730a8c063e34e4d371b2398de397d6a3
[INFO] running `Command { std: "docker" "start" "-a" "d97d57fa87b45d0c4b034304f0d3553e730a8c063e34e4d371b2398de397d6a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling little-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "d97d57fa87b45d0c4b034304f0d3553e730a8c063e34e4d371b2398de397d6a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d97d57fa87b45d0c4b034304f0d3553e730a8c063e34e4d371b2398de397d6a3", kill_on_drop: false }`
[INFO] [stdout] d97d57fa87b45d0c4b034304f0d3553e730a8c063e34e4d371b2398de397d6a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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] 8a6d78a471786ebe47bcd84e809c2880caff0373a7a57cc26c919a3cb08b63be
[INFO] running `Command { std: "docker" "start" "-a" "8a6d78a471786ebe47bcd84e809c2880caff0373a7a57cc26c919a3cb08b63be", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/little_engine-dd5d24f229d114d7)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests little-engine
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[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] running `Command { std: "docker" "inspect" "8a6d78a471786ebe47bcd84e809c2880caff0373a7a57cc26c919a3cb08b63be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a6d78a471786ebe47bcd84e809c2880caff0373a7a57cc26c919a3cb08b63be", kill_on_drop: false }`
[INFO] [stdout] 8a6d78a471786ebe47bcd84e809c2880caff0373a7a57cc26c919a3cb08b63be