[INFO] updating cached repository https://github.com/itsneo1990/rustlings-solutions
[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] 1baa10cddb5b5b7ab551e16b186ba2d98b88aabf
[INFO] checking itsneo1990/rustlings-solutions against try#3738e44c8fffe9e1fdfda9304a4df74ce7b29152 for pr-68746
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitsneo1990%2Frustlings-solutions" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/itsneo1990/rustlings-solutions on toolchain 3738e44c8fffe9e1fdfda9304a4df74ce7b29152
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3738e44c8fffe9e1fdfda9304a4df74ce7b29152" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/itsneo1990/rustlings-solutions
[INFO] finished tweaking git repo https://github.com/itsneo1990/rustlings-solutions
[INFO] tweaked toml for git repo https://github.com/itsneo1990/rustlings-solutions written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/itsneo1990/rustlings-solutions already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3738e44c8fffe9e1fdfda9304a4df74ce7b29152" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+3738e44c8fffe9e1fdfda9304a4df74ce7b29152" "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] 98c4fbd1b6af9f3c54dd1df198d45588a9a87c12df5704a9c45b077745cdf0a5
[INFO] running `"docker" "start" "-a" "98c4fbd1b6af9f3c54dd1df198d45588a9a87c12df5704a9c45b077745cdf0a5"`
[INFO] [stderr]     Checking assert_cmd v0.11.1
[INFO] [stderr]     Checking rustlings v1.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.04s
[INFO] running `"docker" "inspect" "98c4fbd1b6af9f3c54dd1df198d45588a9a87c12df5704a9c45b077745cdf0a5"`
[INFO] running `"docker" "rm" "-f" "98c4fbd1b6af9f3c54dd1df198d45588a9a87c12df5704a9c45b077745cdf0a5"`
[INFO] [stdout] 98c4fbd1b6af9f3c54dd1df198d45588a9a87c12df5704a9c45b077745cdf0a5