[INFO] cloning repository https://github.com/Shrekie/collection-sandbox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Shrekie/collection-sandbox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShrekie%2Fcollection-sandbox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShrekie%2Fcollection-sandbox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d8f8d5043966b828f5ba5c36d130504309c072e3
[INFO] testing Shrekie/collection-sandbox against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShrekie%2Fcollection-sandbox" "/workspace/builds/worker-52/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-52/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Shrekie/collection-sandbox 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 git repo https://github.com/Shrekie/collection-sandbox
[INFO] finished tweaking git repo https://github.com/Shrekie/collection-sandbox
[INFO] tweaked toml for git repo https://github.com/Shrekie/collection-sandbox written to /workspace/builds/worker-52/source/Cargo.toml
[INFO] crate git repo https://github.com/Shrekie/collection-sandbox already has a lockfile, it will not be regenerated
[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-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] a1f61ad9f9960a9ec976fb8ad001708413bed6e46e74defb9352b570202ae9fd
[INFO] running `Command { std: "docker" "start" "-a" "a1f61ad9f9960a9ec976fb8ad001708413bed6e46e74defb9352b570202ae9fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1f61ad9f9960a9ec976fb8ad001708413bed6e46e74defb9352b570202ae9fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1f61ad9f9960a9ec976fb8ad001708413bed6e46e74defb9352b570202ae9fd", kill_on_drop: false }`
[INFO] [stdout] a1f61ad9f9960a9ec976fb8ad001708413bed6e46e74defb9352b570202ae9fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] 4d817127702c0fcb3c086e5585b89c82b4881b8c811d68585136206afd3d74eb
[INFO] running `Command { std: "docker" "start" "-a" "4d817127702c0fcb3c086e5585b89c82b4881b8c811d68585136206afd3d74eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling collection-sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.41s
[INFO] running `Command { std: "docker" "inspect" "4d817127702c0fcb3c086e5585b89c82b4881b8c811d68585136206afd3d74eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d817127702c0fcb3c086e5585b89c82b4881b8c811d68585136206afd3d74eb", kill_on_drop: false }`
[INFO] [stdout] 4d817127702c0fcb3c086e5585b89c82b4881b8c811d68585136206afd3d74eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] 67cabe9df4b2e3f235af898509066962cd363caf3f6a7fb73268e0d0f29a20d9
[INFO] running `Command { std: "docker" "start" "-a" "67cabe9df4b2e3f235af898509066962cd363caf3f6a7fb73268e0d0f29a20d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling collection-sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "67cabe9df4b2e3f235af898509066962cd363caf3f6a7fb73268e0d0f29a20d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67cabe9df4b2e3f235af898509066962cd363caf3f6a7fb73268e0d0f29a20d9", kill_on_drop: false }`
[INFO] [stdout] 67cabe9df4b2e3f235af898509066962cd363caf3f6a7fb73268e0d0f29a20d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] efda76dc05a356aca0a1329584c50afd91312e5ef57599224a2bf453b0080ffc
[INFO] running `Command { std: "docker" "start" "-a" "efda76dc05a356aca0a1329584c50afd91312e5ef57599224a2bf453b0080ffc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/collection_sandbox-2a3599874ab5ca18)
[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" "efda76dc05a356aca0a1329584c50afd91312e5ef57599224a2bf453b0080ffc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efda76dc05a356aca0a1329584c50afd91312e5ef57599224a2bf453b0080ffc", kill_on_drop: false }`
[INFO] [stdout] efda76dc05a356aca0a1329584c50afd91312e5ef57599224a2bf453b0080ffc