[INFO] fetching crate proc-singleton 0.2.0... [INFO] building proc-singleton-0.2.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2 [INFO] extracting crate proc-singleton 0.2.0 into /workspace/builds/worker-3-tc1/source [INFO] started tweaking crates.io crate proc-singleton 0.2.0 [INFO] finished tweaking crates.io crate proc-singleton 0.2.0 [INFO] tweaked toml for crates.io crate proc-singleton 0.2.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate proc-singleton 0.2.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate proc-singleton 0.2.0 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4f907d06faef5f84b49bc7e34fbedf0eb30c657cc96e293a05ecc73b593accec [INFO] running `Command { std: "docker" "start" "-a" "4f907d06faef5f84b49bc7e34fbedf0eb30c657cc96e293a05ecc73b593accec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4f907d06faef5f84b49bc7e34fbedf0eb30c657cc96e293a05ecc73b593accec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4f907d06faef5f84b49bc7e34fbedf0eb30c657cc96e293a05ecc73b593accec", kill_on_drop: false }` [INFO] [stdout] 4f907d06faef5f84b49bc7e34fbedf0eb30c657cc96e293a05ecc73b593accec [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7321b4b39c1ecd4668e5c872832766afba3edca1a8c557db88290c02021e2671 [INFO] running `Command { std: "docker" "start" "-a" "7321b4b39c1ecd4668e5c872832766afba3edca1a8c557db88290c02021e2671", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.94 [INFO] [stderr] Compiling unicode-ident v1.0.18 [INFO] [stderr] Compiling quote v1.0.40 [INFO] [stderr] Compiling syn v2.0.100 [INFO] [stderr] Compiling proc-singleton v0.2.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.67s [INFO] running `Command { std: "docker" "inspect" "7321b4b39c1ecd4668e5c872832766afba3edca1a8c557db88290c02021e2671", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7321b4b39c1ecd4668e5c872832766afba3edca1a8c557db88290c02021e2671", kill_on_drop: false }` [INFO] [stdout] 7321b4b39c1ecd4668e5c872832766afba3edca1a8c557db88290c02021e2671 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9c9f0788482355dfb546bad89ee8c1a38d3886eb85dbeeeb0ee4c74e484d8ebe [INFO] running `Command { std: "docker" "start" "-a" "9c9f0788482355dfb546bad89ee8c1a38d3886eb85dbeeeb0ee4c74e484d8ebe", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.171 [INFO] [stderr] Compiling getrandom v0.3.2 [INFO] [stderr] Compiling proc-singleton v0.2.0 (/opt/rustwide/workdir) [INFO] [stderr] Compiling uuid v1.16.0 [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 2.70s [INFO] running `Command { std: "docker" "inspect" "9c9f0788482355dfb546bad89ee8c1a38d3886eb85dbeeeb0ee4c74e484d8ebe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9c9f0788482355dfb546bad89ee8c1a38d3886eb85dbeeeb0ee4c74e484d8ebe", kill_on_drop: false }` [INFO] [stdout] 9c9f0788482355dfb546bad89ee8c1a38d3886eb85dbeeeb0ee4c74e484d8ebe