[INFO] fetching crate ringmaster 0.2.1... [INFO] checking ringmaster-0.2.1 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3 [INFO] extracting crate ringmaster 0.2.1 into /workspace/builds/worker-31/source [INFO] validating manifest of crates.io crate ringmaster 0.2.1 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate ringmaster 0.2.1 [INFO] finished tweaking crates.io crate ringmaster 0.2.1 [INFO] tweaked toml for crates.io crate ringmaster 0.2.1 written to /workspace/builds/worker-31/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: only one of `license` or `license-file` is necessary [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b8a5516332ac3114e6f796968e6160d5eed60590b802de2952d21364dcb9791d [INFO] running `Command { std: "docker" "start" "-a" "b8a5516332ac3114e6f796968e6160d5eed60590b802de2952d21364dcb9791d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b8a5516332ac3114e6f796968e6160d5eed60590b802de2952d21364dcb9791d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b8a5516332ac3114e6f796968e6160d5eed60590b802de2952d21364dcb9791d", kill_on_drop: false }` [INFO] [stdout] b8a5516332ac3114e6f796968e6160d5eed60590b802de2952d21364dcb9791d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0710bc427655b63e02ad919916ad39f365ac3fe55f94824c159480dfc9d88f37 [INFO] running `Command { std: "docker" "start" "-a" "0710bc427655b63e02ad919916ad39f365ac3fe55f94824c159480dfc9d88f37", kill_on_drop: false }` [INFO] [stderr] warning: only one of `license` or `license-file` is necessary [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Checking slab v0.4.4 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling syn v1.0.75 [INFO] [stderr] Compiling tokio-macros v0.2.6 [INFO] [stderr] Checking tokio v0.2.25 [INFO] [stderr] Checking ringmaster v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: variant is never constructed: `Root` [INFO] [stdout] --> src/lib.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | Root{ prev: usize, next: usize }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Box` [INFO] [stdout] --> src/lib.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | Box{ prev: usize, next: usize, item: T}, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `LIFO` [INFO] [stdout] --> src/lib.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | LIFO, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `buffer` [INFO] [stdout] --> src/lib.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 22 | buffer: Mutex>>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `mode` [INFO] [stdout] --> src/lib.rs:23:5 [INFO] [stdout] | [INFO] [stdout] 23 | mode: Mode, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/lib.rs:28:8 [INFO] [stdout] | [INFO] [stdout] 28 | fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `as_fifo` [INFO] [stdout] --> src/lib.rs:35:8 [INFO] [stdout] | [INFO] [stdout] 35 | fn as_fifo(self) -> Self { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `as_lifo` [INFO] [stdout] --> src/lib.rs:42:8 [INFO] [stdout] | [INFO] [stdout] 42 | fn as_lifo(self) -> Self { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `from` [INFO] [stdout] --> src/lib.rs:49:14 [INFO] [stdout] | [INFO] [stdout] 49 | async fn from(vec: Vec) -> Self { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `is_empty` [INFO] [stdout] --> src/lib.rs:57:14 [INFO] [stdout] | [INFO] [stdout] 57 | async fn is_empty(&self) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `push` [INFO] [stdout] --> src/lib.rs:61:14 [INFO] [stdout] | [INFO] [stdout] 61 | async fn push(&self, item: T) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `poll` [INFO] [stdout] --> src/lib.rs:84:14 [INFO] [stdout] | [INFO] [stdout] 84 | async fn poll(&self) -> Option { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `poll_with` [INFO] [stdout] --> src/lib.rs:150:14 [INFO] [stdout] | [INFO] [stdout] 150 | async fn poll_with(&self, f: fn(&T) -> bool) -> Option { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `as_fifo` [INFO] [stdout] --> src/lib.rs:35:8 [INFO] [stdout] | [INFO] [stdout] 35 | fn as_fifo(self) -> Self { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 14.35s [INFO] running `Command { std: "docker" "inspect" "0710bc427655b63e02ad919916ad39f365ac3fe55f94824c159480dfc9d88f37", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0710bc427655b63e02ad919916ad39f365ac3fe55f94824c159480dfc9d88f37", kill_on_drop: false }` [INFO] [stdout] 0710bc427655b63e02ad919916ad39f365ac3fe55f94824c159480dfc9d88f37