[INFO] fetching crate neocortex 3.0.3...
[INFO] building neocortex-3.0.3 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate neocortex 3.0.3 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate neocortex 3.0.3
[INFO] finished tweaking crates.io crate neocortex 3.0.3
[INFO] tweaked toml for crates.io crate neocortex 3.0.3 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate neocortex 3.0.3 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 22 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] b5835fcb4ccc7d7d0dcad6848c1e1a69c2df8ec3e0d2474ed96ced081da35ede
[INFO] running `Command { std: "docker" "start" "-a" "b5835fcb4ccc7d7d0dcad6848c1e1a69c2df8ec3e0d2474ed96ced081da35ede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5835fcb4ccc7d7d0dcad6848c1e1a69c2df8ec3e0d2474ed96ced081da35ede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5835fcb4ccc7d7d0dcad6848c1e1a69c2df8ec3e0d2474ed96ced081da35ede", kill_on_drop: false }`
[INFO] [stdout] b5835fcb4ccc7d7d0dcad6848c1e1a69c2df8ec3e0d2474ed96ced081da35ede
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 12b695f760e22aa0459b023d64e056c391f18dae774f795667753b1f4f43f73f
[INFO] running `Command { std: "docker" "start" "-a" "12b695f760e22aa0459b023d64e056c391f18dae774f795667753b1f4f43f73f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling neocortex v3.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `BuilderState` is never used
[INFO] [stdout]  --> src/builder.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait BuilderState {}
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.94s
[INFO] running `Command { std: "docker" "inspect" "12b695f760e22aa0459b023d64e056c391f18dae774f795667753b1f4f43f73f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12b695f760e22aa0459b023d64e056c391f18dae774f795667753b1f4f43f73f", kill_on_drop: false }`
[INFO] [stdout] 12b695f760e22aa0459b023d64e056c391f18dae774f795667753b1f4f43f73f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 2668a6c40c4f73c2f7840dac3e107b7012c15f7310223d71377676212c99f070
[INFO] running `Command { std: "docker" "start" "-a" "2668a6c40c4f73c2f7840dac3e107b7012c15f7310223d71377676212c99f070", kill_on_drop: false }`
[INFO] [stdout] warning: trait `BuilderState` is never used
[INFO] [stdout]  --> src/builder.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait BuilderState {}
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling neocortex v3.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `BuilderState` is never used
[INFO] [stdout]  --> src/builder.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait BuilderState {}
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "2668a6c40c4f73c2f7840dac3e107b7012c15f7310223d71377676212c99f070", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2668a6c40c4f73c2f7840dac3e107b7012c15f7310223d71377676212c99f070", kill_on_drop: false }`
[INFO] [stdout] 2668a6c40c4f73c2f7840dac3e107b7012c15f7310223d71377676212c99f070