[INFO] updating cached repository https://github.com/softprops/prefix
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c7e58f1487789a15353f371a9a5ee867a1929136
[INFO] checking softprops/prefix against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsoftprops%2Fprefix" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/softprops/prefix on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/softprops/prefix
[INFO] finished tweaking git repo https://github.com/softprops/prefix
[INFO] tweaked toml for git repo https://github.com/softprops/prefix written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/softprops/prefix already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5f20066cde5122e2608a838193554b2a488360ebe4a9fb65773bb11f240b7302
[INFO] running `"docker" "start" "-a" "5f20066cde5122e2608a838193554b2a488360ebe4a9fb65773bb11f240b7302"`
[INFO] [stderr]     Checking path-slash v0.1.1
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking colored v1.9.0
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling tokio-macros v0.2.0
[INFO] [stderr]    Compiling structopt-derive v0.3.3
[INFO] [stderr]     Checking tokio v0.2.2
[INFO] [stderr]    Compiling futures-macro v0.3.1
[INFO] [stderr]     Checking structopt v0.3.3
[INFO] [stderr]     Checking futures-util v0.3.1
[INFO] [stderr]     Checking serde v1.0.101
[INFO] [stderr]     Checking futures-executor v0.3.1
[INFO] [stderr]     Checking futures v0.3.1
[INFO] [stderr]     Checking serde_test v1.0.101
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]     Checking prefix v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 14s
[INFO] running `"docker" "inspect" "5f20066cde5122e2608a838193554b2a488360ebe4a9fb65773bb11f240b7302"`
[INFO] running `"docker" "rm" "-f" "5f20066cde5122e2608a838193554b2a488360ebe4a9fb65773bb11f240b7302"`
[INFO] [stdout] 5f20066cde5122e2608a838193554b2a488360ebe4a9fb65773bb11f240b7302