[INFO] cloning repository https://github.com/scooby/centered-heap
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/scooby/centered-heap" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscooby%2Fcentered-heap", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscooby%2Fcentered-heap'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dc4acd1b79162bf864197ffd8118841dacf7f2ef
[INFO] testing scooby/centered-heap against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscooby%2Fcentered-heap" "/workspace/builds/worker-22/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-22/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/scooby/centered-heap 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/scooby/centered-heap
[INFO] finished tweaking git repo https://github.com/scooby/centered-heap
[INFO] tweaked toml for git repo https://github.com/scooby/centered-heap written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] crate git repo https://github.com/scooby/centered-heap 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded enum-display-derive v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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] 1f7f0ad51b7ba514ae857b78b4719730c87cafb85354f3e238dc9c943823afff
[INFO] running `Command { std: "docker" "start" "-a" "1f7f0ad51b7ba514ae857b78b4719730c87cafb85354f3e238dc9c943823afff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f7f0ad51b7ba514ae857b78b4719730c87cafb85354f3e238dc9c943823afff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f7f0ad51b7ba514ae857b78b4719730c87cafb85354f3e238dc9c943823afff", kill_on_drop: false }`
[INFO] [stdout] 1f7f0ad51b7ba514ae857b78b4719730c87cafb85354f3e238dc9c943823afff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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] c3f786782ca881f1755e058acf578923f7183fcff05ad4924610105c66781b58
[INFO] running `Command { std: "docker" "start" "-a" "c3f786782ca881f1755e058acf578923f7183fcff05ad4924610105c66781b58", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling enum-display-derive v0.1.1
[INFO] [stderr]    Compiling cheap v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.70s
[INFO] running `Command { std: "docker" "inspect" "c3f786782ca881f1755e058acf578923f7183fcff05ad4924610105c66781b58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3f786782ca881f1755e058acf578923f7183fcff05ad4924610105c66781b58", kill_on_drop: false }`
[INFO] [stdout] c3f786782ca881f1755e058acf578923f7183fcff05ad4924610105c66781b58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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] 30123e2941c3e02bb08a3307164e1774a00a35dcc6d29219599962e40d8d586a
[INFO] running `Command { std: "docker" "start" "-a" "30123e2941c3e02bb08a3307164e1774a00a35dcc6d29219599962e40d8d586a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 54.56s
[INFO] running `Command { std: "docker" "inspect" "30123e2941c3e02bb08a3307164e1774a00a35dcc6d29219599962e40d8d586a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30123e2941c3e02bb08a3307164e1774a00a35dcc6d29219599962e40d8d586a", kill_on_drop: false }`
[INFO] [stdout] 30123e2941c3e02bb08a3307164e1774a00a35dcc6d29219599962e40d8d586a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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] 2c358a03a3786ff12a7812b2c0ac82554c8e2b8c462c843d1ba5311949718d33
[INFO] running `Command { std: "docker" "start" "-a" "2c358a03a3786ff12a7812b2c0ac82554c8e2b8c462c843d1ba5311949718d33", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.79s
[INFO] running `Command { std: "docker" "inspect" "2c358a03a3786ff12a7812b2c0ac82554c8e2b8c462c843d1ba5311949718d33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c358a03a3786ff12a7812b2c0ac82554c8e2b8c462c843d1ba5311949718d33", kill_on_drop: false }`
[INFO] [stdout] 2c358a03a3786ff12a7812b2c0ac82554c8e2b8c462c843d1ba5311949718d33