[INFO] cloning repository https://github.com/matklad/drop_bomb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matklad/drop_bomb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatklad%2Fdrop_bomb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatklad%2Fdrop_bomb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 36b4bee6902ab438b4c4cf536fb924a9417613d8
[INFO] checking matklad/drop_bomb against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatklad%2Fdrop_bomb" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/matklad/drop_bomb on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/matklad/drop_bomb
[INFO] finished tweaking git repo https://github.com/matklad/drop_bomb
[INFO] tweaked toml for git repo https://github.com/matklad/drop_bomb written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/matklad/drop_bomb already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a44fd33d0228566055d8431495ef58a6b235dbdddcb9309c82b15557d2b07c2
[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" "7a44fd33d0228566055d8431495ef58a6b235dbdddcb9309c82b15557d2b07c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a44fd33d0228566055d8431495ef58a6b235dbdddcb9309c82b15557d2b07c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a44fd33d0228566055d8431495ef58a6b235dbdddcb9309c82b15557d2b07c2", kill_on_drop: false }`
[INFO] [stdout] 7a44fd33d0228566055d8431495ef58a6b235dbdddcb9309c82b15557d2b07c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b4e54ff58f854392a57c3948a68701a36cda34b647b5877c45e2b9ef66fe14a4
[INFO] running `Command { std: "docker" "start" "-a" "b4e54ff58f854392a57c3948a68701a36cda34b647b5877c45e2b9ef66fe14a4", kill_on_drop: false }`
[INFO] [stderr]     Checking drop_bomb v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "b4e54ff58f854392a57c3948a68701a36cda34b647b5877c45e2b9ef66fe14a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4e54ff58f854392a57c3948a68701a36cda34b647b5877c45e2b9ef66fe14a4", kill_on_drop: false }`
[INFO] [stdout] b4e54ff58f854392a57c3948a68701a36cda34b647b5877c45e2b9ef66fe14a4