[INFO] fetching crate serde-aco-derive 0.7.0...
[INFO] building serde-aco-derive-0.7.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate serde-aco-derive 0.7.0 into /workspace/builds/worker-4-tc2/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-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde-aco-derive 0.7.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 77cc1d8240a25f4dbdf149bc5833193b0e4aa0e3e2340a85d83003c498099609
[INFO] running `Command { std: "docker" "start" "-a" "77cc1d8240a25f4dbdf149bc5833193b0e4aa0e3e2340a85d83003c498099609", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77cc1d8240a25f4dbdf149bc5833193b0e4aa0e3e2340a85d83003c498099609", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77cc1d8240a25f4dbdf149bc5833193b0e4aa0e3e2340a85d83003c498099609", kill_on_drop: false }`
[INFO] [stdout] 77cc1d8240a25f4dbdf149bc5833193b0e4aa0e3e2340a85d83003c498099609
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27ae2563b72bda9c8e848bcd0704568b1dd4465fba2c85c5636bf656155955de
[INFO] running `Command { std: "docker" "start" "-a" "27ae2563b72bda9c8e848bcd0704568b1dd4465fba2c85c5636bf656155955de", 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 5.76s
[INFO] running `Command { std: "docker" "inspect" "27ae2563b72bda9c8e848bcd0704568b1dd4465fba2c85c5636bf656155955de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27ae2563b72bda9c8e848bcd0704568b1dd4465fba2c85c5636bf656155955de", kill_on_drop: false }`
[INFO] [stdout] 27ae2563b72bda9c8e848bcd0704568b1dd4465fba2c85c5636bf656155955de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0153f5e44148d3b85b12b6cc2305ca503e8ce48d38f45fdb5511b37a03d592e6
[INFO] running `Command { std: "docker" "start" "-a" "0153f5e44148d3b85b12b6cc2305ca503e8ce48d38f45fdb5511b37a03d592e6", 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 0.75s
[INFO] running `Command { std: "docker" "inspect" "0153f5e44148d3b85b12b6cc2305ca503e8ce48d38f45fdb5511b37a03d592e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0153f5e44148d3b85b12b6cc2305ca503e8ce48d38f45fdb5511b37a03d592e6", kill_on_drop: false }`
[INFO] [stdout] 0153f5e44148d3b85b12b6cc2305ca503e8ce48d38f45fdb5511b37a03d592e6