[INFO] cloning repository https://github.com/rettgerst/exercism-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rettgerst/exercism-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frettgerst%2Fexercism-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frettgerst%2Fexercism-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cc56769adf16872479dcd437e9d43cf3396652d3
[INFO] checking rettgerst/exercism-rust against try#3bb2879ea9e58d65b875f9a98df44f4a43ce2597 for pr-85387
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frettgerst%2Fexercism-rust" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rettgerst/exercism-rust on toolchain 3bb2879ea9e58d65b875f9a98df44f4a43ce2597
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rettgerst/exercism-rust
[INFO] finished tweaking git repo https://github.com/rettgerst/exercism-rust
[INFO] tweaked toml for git repo https://github.com/rettgerst/exercism-rust written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/rettgerst/exercism-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea877d4b59134503f009799025b1598f71e58c78b5431ee2e88db4fda3ffbf89
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ea877d4b59134503f009799025b1598f71e58c78b5431ee2e88db4fda3ffbf89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea877d4b59134503f009799025b1598f71e58c78b5431ee2e88db4fda3ffbf89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea877d4b59134503f009799025b1598f71e58c78b5431ee2e88db4fda3ffbf89", kill_on_drop: false }`
[INFO] [stdout] ea877d4b59134503f009799025b1598f71e58c78b5431ee2e88db4fda3ffbf89
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f7c1454f81d72c37379898f24c00d61f03d5006dd1896845c9cede2497b4ea8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2f7c1454f81d72c37379898f24c00d61f03d5006dd1896845c9cede2497b4ea8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]     Checking unicode-segmentation v1.7.1
[INFO] [stderr]     Checking grains v1.2.0 (/opt/rustwide/workdir/grains)
[INFO] [stderr]     Checking hello-world v1.1.0 (/opt/rustwide/workdir/hello-world)
[INFO] [stderr]     Checking high-scores v4.0.0 (/opt/rustwide/workdir/high-scores)
[INFO] [stderr]     Checking collatz_conjecture v1.2.1 (/opt/rustwide/workdir/collatz-conjecture)
[INFO] [stderr]     Checking difference-of-squares v1.2.0 (/opt/rustwide/workdir/difference-of-squares)
[INFO] [stderr]     Checking diffie-hellman v0.1.0 (/opt/rustwide/workdir/diffie-hellman)
[INFO] [stderr]     Checking raindrops v1.1.0 (/opt/rustwide/workdir/raindrops)
[INFO] [stderr]     Checking prime_factors v1.1.0 (/opt/rustwide/workdir/prime-factors)
[INFO] [stderr]     Checking matching-brackets v2.0.0 (/opt/rustwide/workdir/matching-brackets)
[INFO] [stderr]     Checking bob v1.6.0 (/opt/rustwide/workdir/bob)
[INFO] [stderr]     Checking nth_prime v2.1.0 (/opt/rustwide/workdir/nth-prime)
[INFO] [stderr]     Checking leap v1.6.0 (/opt/rustwide/workdir/leap)
[INFO] [stderr]     Checking armstrong_numbers v1.1.0 (/opt/rustwide/workdir/armstrong-numbers)
[INFO] [stderr]     Checking series v0.1.0 (/opt/rustwide/workdir/series)
[INFO] [stderr]     Checking beer-song v0.0.0 (/opt/rustwide/workdir/beer-song)
[INFO] [stderr]     Checking sum-of-multiples v1.5.0 (/opt/rustwide/workdir/sum-of-multiples)
[INFO] [stderr]     Checking proverb v1.1.0 (/opt/rustwide/workdir/proverb)
[INFO] [stderr]     Checking reverse_string v1.2.0 (/opt/rustwide/workdir/reverse-string)
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking gigasecond v2.0.0 (/opt/rustwide/workdir/gigasecond)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.23s
[INFO] running `Command { std: "docker" "inspect" "2f7c1454f81d72c37379898f24c00d61f03d5006dd1896845c9cede2497b4ea8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f7c1454f81d72c37379898f24c00d61f03d5006dd1896845c9cede2497b4ea8", kill_on_drop: false }`
[INFO] [stdout] 2f7c1454f81d72c37379898f24c00d61f03d5006dd1896845c9cede2497b4ea8