[INFO] fetching crate serde-nothing 0.1.1...
[INFO] building serde-nothing-0.1.1 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate serde-nothing 0.1.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate serde-nothing 0.1.1
[INFO] finished tweaking crates.io crate serde-nothing 0.1.1
[INFO] tweaked toml for crates.io crate serde-nothing 0.1.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde-nothing 0.1.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[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] 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e53fd33febc385588c0daa4637a63f147b81a1a3df48d77ead5d95cb942fdfaa
[INFO] running `Command { std: "docker" "start" "-a" "e53fd33febc385588c0daa4637a63f147b81a1a3df48d77ead5d95cb942fdfaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e53fd33febc385588c0daa4637a63f147b81a1a3df48d77ead5d95cb942fdfaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e53fd33febc385588c0daa4637a63f147b81a1a3df48d77ead5d95cb942fdfaa", kill_on_drop: false }`
[INFO] [stdout] e53fd33febc385588c0daa4637a63f147b81a1a3df48d77ead5d95cb942fdfaa
[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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5b9e4a5789c72093940b94d32ca999c9623edbfd4380b8670e128aebda79c8a
[INFO] running `Command { std: "docker" "start" "-a" "c5b9e4a5789c72093940b94d32ca999c9623edbfd4380b8670e128aebda79c8a", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde-nothing v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "c5b9e4a5789c72093940b94d32ca999c9623edbfd4380b8670e128aebda79c8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5b9e4a5789c72093940b94d32ca999c9623edbfd4380b8670e128aebda79c8a", kill_on_drop: false }`
[INFO] [stdout] c5b9e4a5789c72093940b94d32ca999c9623edbfd4380b8670e128aebda79c8a
[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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1ea3e9e3f292e4e91325ecc8c15c29111d77150c0555060e15bb2009b6aef1b
[INFO] running `Command { std: "docker" "start" "-a" "e1ea3e9e3f292e4e91325ecc8c15c29111d77150c0555060e15bb2009b6aef1b", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde-nothing v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "e1ea3e9e3f292e4e91325ecc8c15c29111d77150c0555060e15bb2009b6aef1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1ea3e9e3f292e4e91325ecc8c15c29111d77150c0555060e15bb2009b6aef1b", kill_on_drop: false }`
[INFO] [stdout] e1ea3e9e3f292e4e91325ecc8c15c29111d77150c0555060e15bb2009b6aef1b