[INFO] fetching crate sivchain 0.0.0...
[INFO] testing sivchain-0.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate sivchain 0.0.0 into /workspace/builds/worker-31/source
[INFO] validating manifest of crates.io crate sivchain 0.0.0 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 crates.io crate sivchain 0.0.0
[INFO] finished tweaking crates.io crate sivchain 0.0.0
[INFO] tweaked toml for crates.io crate sivchain 0.0.0 written to /workspace/builds/worker-31/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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" "+1.55.0" "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-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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] 927a72ab7c1da4c1bcfbccedbf863a7ce35a3cb742579fdf3ff507d3c3fa5b95
[INFO] running `Command { std: "docker" "start" "-a" "927a72ab7c1da4c1bcfbccedbf863a7ce35a3cb742579fdf3ff507d3c3fa5b95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "927a72ab7c1da4c1bcfbccedbf863a7ce35a3cb742579fdf3ff507d3c3fa5b95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "927a72ab7c1da4c1bcfbccedbf863a7ce35a3cb742579fdf3ff507d3c3fa5b95", kill_on_drop: false }`
[INFO] [stdout] 927a72ab7c1da4c1bcfbccedbf863a7ce35a3cb742579fdf3ff507d3c3fa5b95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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] e42a6bb48e32c0489447d75e1c40b0d58453059bc9adeacdd8d4ab3cb1c35969
[INFO] running `Command { std: "docker" "start" "-a" "e42a6bb48e32c0489447d75e1c40b0d58453059bc9adeacdd8d4ab3cb1c35969", kill_on_drop: false }`
[INFO] [stderr]    Compiling sivchain v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "e42a6bb48e32c0489447d75e1c40b0d58453059bc9adeacdd8d4ab3cb1c35969", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e42a6bb48e32c0489447d75e1c40b0d58453059bc9adeacdd8d4ab3cb1c35969", kill_on_drop: false }`
[INFO] [stdout] e42a6bb48e32c0489447d75e1c40b0d58453059bc9adeacdd8d4ab3cb1c35969
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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] 77934d9085e8d9083b4924230b2baadf0f8731c7ab56ee73dc7633b5ef280332
[INFO] running `Command { std: "docker" "start" "-a" "77934d9085e8d9083b4924230b2baadf0f8731c7ab56ee73dc7633b5ef280332", kill_on_drop: false }`
[INFO] [stderr]    Compiling sivchain v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "77934d9085e8d9083b4924230b2baadf0f8731c7ab56ee73dc7633b5ef280332", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77934d9085e8d9083b4924230b2baadf0f8731c7ab56ee73dc7633b5ef280332", kill_on_drop: false }`
[INFO] [stdout] 77934d9085e8d9083b4924230b2baadf0f8731c7ab56ee73dc7633b5ef280332
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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] e632265b0cd8c600e7fbd98280f6d6b48c4ed67e449c61e678b8daa0709f319a
[INFO] running `Command { std: "docker" "start" "-a" "e632265b0cd8c600e7fbd98280f6d6b48c4ed67e449c61e678b8daa0709f319a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sivchain-4e0b12321861ee90)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests sivchain
[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 0.00s
[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" "e632265b0cd8c600e7fbd98280f6d6b48c4ed67e449c61e678b8daa0709f319a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e632265b0cd8c600e7fbd98280f6d6b48c4ed67e449c61e678b8daa0709f319a", kill_on_drop: false }`
[INFO] [stdout] e632265b0cd8c600e7fbd98280f6d6b48c4ed67e449c61e678b8daa0709f319a