[INFO] fetching crate rumbrella-introtoalgorithms 0.1.0...
[INFO] testing rumbrella-introtoalgorithms-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate rumbrella-introtoalgorithms 0.1.0 into /workspace/builds/worker-89/source
[INFO] validating manifest of crates.io crate rumbrella-introtoalgorithms 0.1.0 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 rumbrella-introtoalgorithms 0.1.0
[INFO] finished tweaking crates.io crate rumbrella-introtoalgorithms 0.1.0
[INFO] tweaked toml for crates.io crate rumbrella-introtoalgorithms 0.1.0 written to /workspace/builds/worker-89/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/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] 4c41eb7d3d8ee159775545e6d7ba1609159749f28075a233235bbc0c2ec20137
[INFO] running `Command { std: "docker" "start" "-a" "4c41eb7d3d8ee159775545e6d7ba1609159749f28075a233235bbc0c2ec20137", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c41eb7d3d8ee159775545e6d7ba1609159749f28075a233235bbc0c2ec20137", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c41eb7d3d8ee159775545e6d7ba1609159749f28075a233235bbc0c2ec20137", kill_on_drop: false }`
[INFO] [stdout] 4c41eb7d3d8ee159775545e6d7ba1609159749f28075a233235bbc0c2ec20137
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/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] 61d9b31766d6bd1ab97ea1d9fe1513cd80641dc594d09305aa95c90ba16fb132
[INFO] running `Command { std: "docker" "start" "-a" "61d9b31766d6bd1ab97ea1d9fe1513cd80641dc594d09305aa95c90ba16fb132", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rumbrella-introtoalgorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "61d9b31766d6bd1ab97ea1d9fe1513cd80641dc594d09305aa95c90ba16fb132", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61d9b31766d6bd1ab97ea1d9fe1513cd80641dc594d09305aa95c90ba16fb132", kill_on_drop: false }`
[INFO] [stdout] 61d9b31766d6bd1ab97ea1d9fe1513cd80641dc594d09305aa95c90ba16fb132
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/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] 6b654be51b93d0bee32948654cc217be1667b6ad5aa88175198dc79cf6ea3294
[INFO] running `Command { std: "docker" "start" "-a" "6b654be51b93d0bee32948654cc217be1667b6ad5aa88175198dc79cf6ea3294", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rumbrella-introtoalgorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.27s
[INFO] running `Command { std: "docker" "inspect" "6b654be51b93d0bee32948654cc217be1667b6ad5aa88175198dc79cf6ea3294", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b654be51b93d0bee32948654cc217be1667b6ad5aa88175198dc79cf6ea3294", kill_on_drop: false }`
[INFO] [stdout] 6b654be51b93d0bee32948654cc217be1667b6ad5aa88175198dc79cf6ea3294
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/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] 18e50cf0abdac7572d881b3086699026f745262b396e2c908524d3b4e09c7404
[INFO] running `Command { std: "docker" "start" "-a" "18e50cf0abdac7572d881b3086699026f745262b396e2c908524d3b4e09c7404", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.81s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rumbrella_introtoalgorithms-7c786b1f78e9833e)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[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] [stderr]    Doc-tests rumbrella-introtoalgorithms
[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" "18e50cf0abdac7572d881b3086699026f745262b396e2c908524d3b4e09c7404", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18e50cf0abdac7572d881b3086699026f745262b396e2c908524d3b4e09c7404", kill_on_drop: false }`
[INFO] [stdout] 18e50cf0abdac7572d881b3086699026f745262b396e2c908524d3b4e09c7404