[INFO] fetching crate fimxi 0.1.0...
[INFO] checking fimxi-0.1.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate fimxi 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate fimxi 0.1.0
[INFO] finished tweaking crates.io crate fimxi 0.1.0
[INFO] tweaked toml for crates.io crate fimxi 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fimxi 0.1.0 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee31fe270e25c15b3487fd0417622f7c23da7cb3f278f2b37e13aa546d33fb0e
[INFO] running `Command { std: "docker" "start" "-a" "ee31fe270e25c15b3487fd0417622f7c23da7cb3f278f2b37e13aa546d33fb0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee31fe270e25c15b3487fd0417622f7c23da7cb3f278f2b37e13aa546d33fb0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee31fe270e25c15b3487fd0417622f7c23da7cb3f278f2b37e13aa546d33fb0e", kill_on_drop: false }`
[INFO] [stdout] ee31fe270e25c15b3487fd0417622f7c23da7cb3f278f2b37e13aa546d33fb0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28beee14edc68ba72e452832531971dd209aab64ba5b0143dc6551656653d036
[INFO] running `Command { std: "docker" "start" "-a" "28beee14edc68ba72e452832531971dd209aab64ba5b0143dc6551656653d036", kill_on_drop: false }`
[INFO] [stderr]     Checking fimxi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `id` and `thread` are never read
[INFO] [stdout]   --> src/thread.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct Thread {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 10 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 11 |     thread: thread::JoinHandle<Arc<Mutex<mpsc::Receiver<Actor>>>>
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `threads` is never read
[INFO] [stdout]  --> src/thread_pool.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct ThreadPool {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 9 |     threads: Vec<Thread>,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `thread` are never read
[INFO] [stdout]   --> src/thread.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct Thread {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 10 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 11 |     thread: thread::JoinHandle<Arc<Mutex<mpsc::Receiver<Actor>>>>
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `threads` is never read
[INFO] [stdout]  --> src/thread_pool.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct ThreadPool {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 9 |     threads: Vec<Thread>,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "28beee14edc68ba72e452832531971dd209aab64ba5b0143dc6551656653d036", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28beee14edc68ba72e452832531971dd209aab64ba5b0143dc6551656653d036", kill_on_drop: false }`
[INFO] [stdout] 28beee14edc68ba72e452832531971dd209aab64ba5b0143dc6551656653d036