[INFO] fetching crate serde-aco-derive 0.7.0...
[INFO] building serde-aco-derive-0.7.0 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate serde-aco-derive 0.7.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate serde-aco-derive 0.7.0
[INFO] finished tweaking crates.io crate serde-aco-derive 0.7.0
[INFO] tweaked toml for crates.io crate serde-aco-derive 0.7.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde-aco-derive 0.7.0 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate serde-aco-derive 0.7.0 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 696a1637769c928a5d694cdd83518bb035712819a9c59e77c977c6c0e726df9d
[INFO] running `Command { std: "docker" "start" "-a" "696a1637769c928a5d694cdd83518bb035712819a9c59e77c977c6c0e726df9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "696a1637769c928a5d694cdd83518bb035712819a9c59e77c977c6c0e726df9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "696a1637769c928a5d694cdd83518bb035712819a9c59e77c977c6c0e726df9d", kill_on_drop: false }`
[INFO] [stdout] 696a1637769c928a5d694cdd83518bb035712819a9c59e77c977c6c0e726df9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56f1511a8877c21c4e2ebd4e475f0f986aa602c6dfa0958fb4e29b0e910e926f
[INFO] running `Command { std: "docker" "start" "-a" "56f1511a8877c21c4e2ebd4e475f0f986aa602c6dfa0958fb4e29b0e910e926f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling serde-aco-derive v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.08s
[INFO] running `Command { std: "docker" "inspect" "56f1511a8877c21c4e2ebd4e475f0f986aa602c6dfa0958fb4e29b0e910e926f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56f1511a8877c21c4e2ebd4e475f0f986aa602c6dfa0958fb4e29b0e910e926f", kill_on_drop: false }`
[INFO] [stdout] 56f1511a8877c21c4e2ebd4e475f0f986aa602c6dfa0958fb4e29b0e910e926f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dab020b116e50f1eb20cded41adc8499035a1573275735cf86ec3abe4247c5f9
[INFO] running `Command { std: "docker" "start" "-a" "dab020b116e50f1eb20cded41adc8499035a1573275735cf86ec3abe4247c5f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde-aco-derive v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `Command { std: "docker" "inspect" "dab020b116e50f1eb20cded41adc8499035a1573275735cf86ec3abe4247c5f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dab020b116e50f1eb20cded41adc8499035a1573275735cf86ec3abe4247c5f9", kill_on_drop: false }`
[INFO] [stdout] dab020b116e50f1eb20cded41adc8499035a1573275735cf86ec3abe4247c5f9