[INFO] fetching crate cold-io 0.2.0...
[INFO] checking cold-io-0.2.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate cold-io 0.2.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate cold-io 0.2.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cold-io 0.2.0
[INFO] finished tweaking crates.io crate cold-io 0.2.0
[INFO] tweaked toml for crates.io crate cold-io 0.2.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate cold-io 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded smallvec v1.6.1
[INFO] [stderr]   Downloaded ctrlc v3.2.0
[INFO] [stderr]   Downloaded memoffset v0.6.4
[INFO] [stderr]   Downloaded rand_hc v0.3.1
[INFO] [stderr]   Downloaded getrandom v0.2.3
[INFO] [stderr]   Downloaded cc v1.0.69
[INFO] [stderr]   Downloaded mio v0.7.13
[INFO] [stderr]   Downloaded rand v0.8.4
[INFO] [stderr]   Downloaded nix v0.22.1
[INFO] [stderr]   Downloaded libc v0.2.100
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6542d764ffa8c2eceb5d5dd58e3a8bed8735ffc5534f1b147bc1f399e13c4da2
[INFO] running `Command { std: "docker" "start" "-a" "6542d764ffa8c2eceb5d5dd58e3a8bed8735ffc5534f1b147bc1f399e13c4da2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6542d764ffa8c2eceb5d5dd58e3a8bed8735ffc5534f1b147bc1f399e13c4da2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6542d764ffa8c2eceb5d5dd58e3a8bed8735ffc5534f1b147bc1f399e13c4da2", kill_on_drop: false }`
[INFO] [stdout] 6542d764ffa8c2eceb5d5dd58e3a8bed8735ffc5534f1b147bc1f399e13c4da2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 138c32f415ae021cb93fb68051454a02216faf631c4b9cf30b9962134c8e3701
[INFO] running `Command { std: "docker" "start" "-a" "138c32f415ae021cb93fb68051454a02216faf631c4b9cf30b9962134c8e3701", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking nix v0.22.1
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking cold-io v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking ctrlc v3.2.0
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.87s
[INFO] running `Command { std: "docker" "inspect" "138c32f415ae021cb93fb68051454a02216faf631c4b9cf30b9962134c8e3701", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "138c32f415ae021cb93fb68051454a02216faf631c4b9cf30b9962134c8e3701", kill_on_drop: false }`
[INFO] [stdout] 138c32f415ae021cb93fb68051454a02216faf631c4b9cf30b9962134c8e3701