[INFO] fetching crate rubber 0.0.1...
[INFO] testing rubber-0.0.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate rubber 0.0.1 into /workspace/builds/worker-104/source
[INFO] validating manifest of crates.io crate rubber 0.0.1 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 rubber 0.0.1
[INFO] finished tweaking crates.io crate rubber 0.0.1
[INFO] tweaked toml for crates.io crate rubber 0.0.1 written to /workspace/builds/worker-104/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-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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] 4c91052f97f31159dad82e2d529303dd02475c91e1deb8355c139be5e5efca60
[INFO] running `Command { std: "docker" "start" "-a" "4c91052f97f31159dad82e2d529303dd02475c91e1deb8355c139be5e5efca60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c91052f97f31159dad82e2d529303dd02475c91e1deb8355c139be5e5efca60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c91052f97f31159dad82e2d529303dd02475c91e1deb8355c139be5e5efca60", kill_on_drop: false }`
[INFO] [stdout] 4c91052f97f31159dad82e2d529303dd02475c91e1deb8355c139be5e5efca60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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] 32e9edd3d6c24bbc7fbd52c7d5e8a0dc021a950455e39ec4756476e35e403609
[INFO] running `Command { std: "docker" "start" "-a" "32e9edd3d6c24bbc7fbd52c7d5e8a0dc021a950455e39ec4756476e35e403609", kill_on_drop: false }`
[INFO] [stderr]    Compiling rubber v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `Command { std: "docker" "inspect" "32e9edd3d6c24bbc7fbd52c7d5e8a0dc021a950455e39ec4756476e35e403609", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32e9edd3d6c24bbc7fbd52c7d5e8a0dc021a950455e39ec4756476e35e403609", kill_on_drop: false }`
[INFO] [stdout] 32e9edd3d6c24bbc7fbd52c7d5e8a0dc021a950455e39ec4756476e35e403609
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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] f9f1d694df036334b5fb06e70cc3f4706e19c5defc63c1116965a97b6707ea70
[INFO] running `Command { std: "docker" "start" "-a" "f9f1d694df036334b5fb06e70cc3f4706e19c5defc63c1116965a97b6707ea70", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rubber v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "f9f1d694df036334b5fb06e70cc3f4706e19c5defc63c1116965a97b6707ea70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9f1d694df036334b5fb06e70cc3f4706e19c5defc63c1116965a97b6707ea70", kill_on_drop: false }`
[INFO] [stdout] f9f1d694df036334b5fb06e70cc3f4706e19c5defc63c1116965a97b6707ea70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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] 3be146dd02b4a670ff769a57856458f381d765bb1c2b7ffdd79523e5275442c3
[INFO] running `Command { std: "docker" "start" "-a" "3be146dd02b4a670ff769a57856458f381d765bb1c2b7ffdd79523e5275442c3", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rubber-ddc800c0902c9299)
[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" "3be146dd02b4a670ff769a57856458f381d765bb1c2b7ffdd79523e5275442c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3be146dd02b4a670ff769a57856458f381d765bb1c2b7ffdd79523e5275442c3", kill_on_drop: false }`
[INFO] [stdout] 3be146dd02b4a670ff769a57856458f381d765bb1c2b7ffdd79523e5275442c3