[INFO] cloning repository https://github.com/crumblingstatue/rust-existing-instance
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/crumblingstatue/rust-existing-instance" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrumblingstatue%2Frust-existing-instance", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrumblingstatue%2Frust-existing-instance'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a21426a77660e9540ba1e79e01f4d442990608dd
[INFO] checking crumblingstatue/rust-existing-instance against master#7ad4e69ad585d8ff214f7b42d01f1959eda08f40 for pr-152543
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrumblingstatue%2Frust-existing-instance" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/crumblingstatue/rust-existing-instance
[INFO] finished tweaking git repo https://github.com/crumblingstatue/rust-existing-instance
[INFO] tweaked toml for git repo https://github.com/crumblingstatue/rust-existing-instance written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/crumblingstatue/rust-existing-instance on toolchain 7ad4e69ad585d8ff214f7b42d01f1959eda08f40
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7ad4e69ad585d8ff214f7b42d01f1959eda08f40" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/crumblingstatue/rust-existing-instance 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" "+7ad4e69ad585d8ff214f7b42d01f1959eda08f40" "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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+7ad4e69ad585d8ff214f7b42d01f1959eda08f40" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 63c9b8bccfb649089ba12a2df6f66204140ac586263ac60e5f0a291d4b441692
[INFO] running `Command { std: "docker" "start" "-a" "63c9b8bccfb649089ba12a2df6f66204140ac586263ac60e5f0a291d4b441692", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63c9b8bccfb649089ba12a2df6f66204140ac586263ac60e5f0a291d4b441692", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63c9b8bccfb649089ba12a2df6f66204140ac586263ac60e5f0a291d4b441692", kill_on_drop: false }`
[INFO] [stdout] 63c9b8bccfb649089ba12a2df6f66204140ac586263ac60e5f0a291d4b441692
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+7ad4e69ad585d8ff214f7b42d01f1959eda08f40" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ad3d906b3d39ac661d03578611accdcac9a2f65214de33d86d344f368e5f85d
[INFO] running `Command { std: "docker" "start" "-a" "2ad3d906b3d39ac661d03578611accdcac9a2f65214de33d86d344f368e5f85d", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]     Checking colorchoice v1.0.3
[INFO] [stderr]     Checking anstyle v1.0.10
[INFO] [stderr]    Compiling doctest-file v1.0.0
[INFO] [stderr]     Checking anstyle-query v1.1.2
[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 7.01s
[INFO] running `Command { std: "docker" "inspect" "2ad3d906b3d39ac661d03578611accdcac9a2f65214de33d86d344f368e5f85d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ad3d906b3d39ac661d03578611accdcac9a2f65214de33d86d344f368e5f85d", kill_on_drop: false }`
[INFO] [stdout] 2ad3d906b3d39ac661d03578611accdcac9a2f65214de33d86d344f368e5f85d