[INFO] fetching crate ringbuffer 0.7.1...
[INFO] checking ringbuffer-0.7.1 against try#8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346 for pr-86194
[INFO] extracting crate ringbuffer 0.7.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate ringbuffer 0.7.1 on toolchain 8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ringbuffer 0.7.1
[INFO] finished tweaking crates.io crate ringbuffer 0.7.1
[INFO] tweaked toml for crates.io crate ringbuffer 0.7.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded array-init v2.0.0
[INFO] [stderr]   Downloaded num_cpus v0.2.13
[INFO] [stderr]   Downloaded thread-scoped v1.0.2
[INFO] [stderr]   Downloaded criterion v0.1.2
[INFO] [stderr]   Downloaded criterion-plot v0.1.3
[INFO] [stderr]   Downloaded itertools v0.5.10
[INFO] [stderr]   Downloaded isatty v0.1.9
[INFO] [stderr]   Downloaded cast v0.1.0
[INFO] [stderr]   Downloaded criterion-stats v0.1.3
[INFO] [stderr]   Downloaded simplelog v0.4.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4163635774ce7a25c4ebf8102bc849893e251dcefdcb533693019b8cfaff102
[INFO] running `Command { std: "docker" "start" "-a" "e4163635774ce7a25c4ebf8102bc849893e251dcefdcb533693019b8cfaff102", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4163635774ce7a25c4ebf8102bc849893e251dcefdcb533693019b8cfaff102", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4163635774ce7a25c4ebf8102bc849893e251dcefdcb533693019b8cfaff102", kill_on_drop: false }`
[INFO] [stdout] e4163635774ce7a25c4ebf8102bc849893e251dcefdcb533693019b8cfaff102
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7041a6665e9e51ea6cba91cee6ca6f3357e151742adb50f1f7391b34e207b40b
[INFO] running `Command { std: "docker" "start" "-a" "7041a6665e9e51ea6cba91cee6ca6f3357e151742adb50f1f7391b34e207b40b", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking cast v0.1.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking thread-scoped v1.0.2
[INFO] [stderr]     Checking array-init v2.0.0
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]     Checking itertools v0.5.10
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking backtrace v0.3.60
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking ringbuffer v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking criterion-stats v0.1.3
[INFO] [stderr]     Checking criterion-plot v0.1.3
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking simplelog v0.4.4
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking criterion v0.1.2
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.28s
[INFO] running `Command { std: "docker" "inspect" "7041a6665e9e51ea6cba91cee6ca6f3357e151742adb50f1f7391b34e207b40b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7041a6665e9e51ea6cba91cee6ca6f3357e151742adb50f1f7391b34e207b40b", kill_on_drop: false }`
[INFO] [stdout] 7041a6665e9e51ea6cba91cee6ca6f3357e151742adb50f1f7391b34e207b40b