[INFO] fetching crate music-timer 0.1.6...
[INFO] checking music-timer-0.1.6 against try#0ab79c4b48ad19260fa46623f452c1b403a360e8 for pr-74315
[INFO] extracting crate music-timer 0.1.6 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate music-timer 0.1.6 on toolchain 0ab79c4b48ad19260fa46623f452c1b403a360e8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate music-timer 0.1.6
[INFO] finished tweaking crates.io crate music-timer 0.1.6
[INFO] tweaked toml for crates.io crate music-timer 0.1.6 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate music-timer 0.1.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "fetch" "--locked" "--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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 982611b93cd90472777fba58e11b494814ea45ff56a3c9f2d889e9a623b8e2d0
[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" "982611b93cd90472777fba58e11b494814ea45ff56a3c9f2d889e9a623b8e2d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "982611b93cd90472777fba58e11b494814ea45ff56a3c9f2d889e9a623b8e2d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "982611b93cd90472777fba58e11b494814ea45ff56a3c9f2d889e9a623b8e2d0", kill_on_drop: false }`
[INFO] [stdout] 982611b93cd90472777fba58e11b494814ea45ff56a3c9f2d889e9a623b8e2d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "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] 04e0de069c2512e9185b51025a815e74c6fdbe79f4980fb36d9ff9032b3ccd82
[INFO] running `Command { std: "docker" "start" "-a" "04e0de069c2512e9185b51025a815e74c6fdbe79f4980fb36d9ff9032b3ccd82", kill_on_drop: false }`
[INFO] [stderr]     Checking music-timer v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `Command { std: "docker" "inspect" "04e0de069c2512e9185b51025a815e74c6fdbe79f4980fb36d9ff9032b3ccd82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04e0de069c2512e9185b51025a815e74c6fdbe79f4980fb36d9ff9032b3ccd82", kill_on_drop: false }`
[INFO] [stdout] 04e0de069c2512e9185b51025a815e74c6fdbe79f4980fb36d9ff9032b3ccd82