[INFO] fetching crate existing_instance 0.1.0...
[INFO] checking existing_instance-0.1.0 against master#db0e836148accac8a22532e3596ac612b63c2d8e for pr-139272
[INFO] extracting crate existing_instance 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate existing_instance 0.1.0 on toolchain db0e836148accac8a22532e3596ac612b63c2d8e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db0e836148accac8a22532e3596ac612b63c2d8e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate existing_instance 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate existing_instance 0.1.0
[INFO] tweaked toml for crates.io crate existing_instance 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate existing_instance 0.1.0 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" "+db0e836148accac8a22532e3596ac612b63c2d8e" "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 jiff-static v0.2.11
[INFO] [stderr]   Downloaded jiff v0.2.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+db0e836148accac8a22532e3596ac612b63c2d8e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e2d63508e419e420066e04e126aa1276e347f48f105d5b963ade0d9439084f3e
[INFO] running `Command { std: "docker" "start" "-a" "e2d63508e419e420066e04e126aa1276e347f48f105d5b963ade0d9439084f3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2d63508e419e420066e04e126aa1276e347f48f105d5b963ade0d9439084f3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2d63508e419e420066e04e126aa1276e347f48f105d5b963ade0d9439084f3e", kill_on_drop: false }`
[INFO] [stdout] e2d63508e419e420066e04e126aa1276e347f48f105d5b963ade0d9439084f3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+db0e836148accac8a22532e3596ac612b63c2d8e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f4f623e1b7f384f1382a92624057b8cf75722f335d0d3ce52e62935843ef0e7
[INFO] running `Command { std: "docker" "start" "-a" "1f4f623e1b7f384f1382a92624057b8cf75722f335d0d3ce52e62935843ef0e7", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]     Checking utf8parse v0.2.2
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]     Checking anstyle v1.0.10
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.1
[INFO] [stderr]    Compiling doctest-file v1.0.0
[INFO] [stderr]     Checking anstyle-query v1.1.2
[INFO] [stderr]     Checking colorchoice v1.0.3
[INFO] [stderr]     Checking jiff v0.2.11
[INFO] [stderr]     Checking anstyle-parse v0.2.6
[INFO] [stderr]     Checking anstream v0.6.18
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking interprocess v2.2.3
[INFO] [stderr]     Checking existing_instance v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking env_filter v0.1.3
[INFO] [stderr]     Checking env_logger v0.11.8
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.77s
[INFO] running `Command { std: "docker" "inspect" "1f4f623e1b7f384f1382a92624057b8cf75722f335d0d3ce52e62935843ef0e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f4f623e1b7f384f1382a92624057b8cf75722f335d0d3ce52e62935843ef0e7", kill_on_drop: false }`
[INFO] [stdout] 1f4f623e1b7f384f1382a92624057b8cf75722f335d0d3ce52e62935843ef0e7