[INFO] cloning repository https://github.com/fcabestre/TaglessFinal-Kiselyov-Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fcabestre/TaglessFinal-Kiselyov-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffcabestre%2FTaglessFinal-Kiselyov-Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffcabestre%2FTaglessFinal-Kiselyov-Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 641dc00cafa14c5bbb88d28fc310d2b79b1c071b
[INFO] checking fcabestre/TaglessFinal-Kiselyov-Rust against master#6526e5c772f2da07db745c94ca6bb0a591a39ba4 for pr-80920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffcabestre%2FTaglessFinal-Kiselyov-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/fcabestre/TaglessFinal-Kiselyov-Rust on toolchain 6526e5c772f2da07db745c94ca6bb0a591a39ba4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fcabestre/TaglessFinal-Kiselyov-Rust
[INFO] finished tweaking git repo https://github.com/fcabestre/TaglessFinal-Kiselyov-Rust
[INFO] tweaked toml for git repo https://github.com/fcabestre/TaglessFinal-Kiselyov-Rust written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/fcabestre/TaglessFinal-Kiselyov-Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 715552e45ae3b0e0d82dea3d8998ad6ff14e973af358e6cdd82c0b1166dd51a5
[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" "715552e45ae3b0e0d82dea3d8998ad6ff14e973af358e6cdd82c0b1166dd51a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "715552e45ae3b0e0d82dea3d8998ad6ff14e973af358e6cdd82c0b1166dd51a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "715552e45ae3b0e0d82dea3d8998ad6ff14e973af358e6cdd82c0b1166dd51a5", kill_on_drop: false }`
[INFO] [stdout] 715552e45ae3b0e0d82dea3d8998ad6ff14e973af358e6cdd82c0b1166dd51a5
[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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b05a469f5ee46bdc4ef2bdb4c52a446046e1014209a4e21ac37ff263255a819a
[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" "b05a469f5ee46bdc4ef2bdb4c52a446046e1014209a4e21ac37ff263255a819a", kill_on_drop: false }`
[INFO] [stderr]     Checking typeclasses v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "b05a469f5ee46bdc4ef2bdb4c52a446046e1014209a4e21ac37ff263255a819a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b05a469f5ee46bdc4ef2bdb4c52a446046e1014209a4e21ac37ff263255a819a", kill_on_drop: false }`
[INFO] [stdout] b05a469f5ee46bdc4ef2bdb4c52a446046e1014209a4e21ac37ff263255a819a