[INFO] cloning repository https://github.com/thataruby/module-6
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thataruby/module-6" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthataruby%2Fmodule-6", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthataruby%2Fmodule-6'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 69105b4e5b5889e4ee0762c4688cc84c5a979709
[INFO] checking thataruby/module-6 against 6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa for pr-159356
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthataruby%2Fmodule-6" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/thataruby/module-6
[INFO] finished tweaking git repo https://github.com/thataruby/module-6
[INFO] tweaked toml for git repo https://github.com/thataruby/module-6 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/thataruby/module-6 on toolchain 6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/thataruby/module-6 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" "+6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa" "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-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:00c5645b54fe3ce5dae1417175e3c7fb6a6646c021d554ecd63a097b8b9f3602" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 9b1dba1de4ecc2ae64abe9e44fde548d1396caf0b7e15f0e9a6663849eb5da1f
[INFO] running `Command { std: "docker" "start" "9b1dba1de4ecc2ae64abe9e44fde548d1396caf0b7e15f0e9a6663849eb5da1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b1dba1de4ecc2ae64abe9e44fde548d1396caf0b7e15f0e9a6663849eb5da1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9b1dba1de4ecc2ae64abe9e44fde548d1396caf0b7e15f0e9a6663849eb5da1f" "/opt/rustwide/cargo-home/bin/cargo" "+6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b1dba1de4ecc2ae64abe9e44fde548d1396caf0b7e15f0e9a6663849eb5da1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9b1dba1de4ecc2ae64abe9e44fde548d1396caf0b7e15f0e9a6663849eb5da1f" "/opt/rustwide/cargo-home/bin/cargo" "+6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking hello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn build(size: usize) -> Result<ThreadPool, PoolCreationError> {
[INFO] [stdout]    |                                  ------------------------------------- expected `Result<ThreadPool, PoolCreationError>` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 35 |         ThreadPool { workers, sender }
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Result<ThreadPool, PoolCreationError>`, found `ThreadPool`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `Result<ThreadPool, PoolCreationError>`
[INFO] [stdout]             found struct `ThreadPool`
[INFO] [stdout] help: try wrapping the expression in `Ok`
[INFO] [stdout]    |
[INFO] [stdout] 35 |         Ok(ThreadPool { workers, sender })
[INFO] [stdout]    |         +++                              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn build(size: usize) -> Result<ThreadPool, PoolCreationError> {
[INFO] [stdout]    |                                  ------------------------------------- expected `Result<ThreadPool, PoolCreationError>` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 35 |         ThreadPool { workers, sender }
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Result<ThreadPool, PoolCreationError>`, found `ThreadPool`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `Result<ThreadPool, PoolCreationError>`
[INFO] [stdout]             found struct `ThreadPool`
[INFO] [stdout] help: try wrapping the expression in `Ok`
[INFO] [stdout]    |
[INFO] [stdout] 35 |         Ok(ThreadPool { workers, sender })
[INFO] [stdout]    |         +++                              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hello` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `hello` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "9b1dba1de4ecc2ae64abe9e44fde548d1396caf0b7e15f0e9a6663849eb5da1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b1dba1de4ecc2ae64abe9e44fde548d1396caf0b7e15f0e9a6663849eb5da1f", kill_on_drop: false }`
[INFO] [stdout] 9b1dba1de4ecc2ae64abe9e44fde548d1396caf0b7e15f0e9a6663849eb5da1f
