[INFO] fetching crate ringmaster 0.2.1... [INFO] checking ringmaster-0.2.1 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579 [INFO] extracting crate ringmaster 0.2.1 into /workspace/builds/worker-5/source [INFO] validating manifest of crates.io crate ringmaster 0.2.1 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", 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-5/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: only one of `license` or `license-file` is necessary [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 958f0bd8f81dbd7c03e1fba4727c833627bd9a9a12ce47e32f8274c6b424c28f [INFO] running `Command { std: "docker" "start" "-a" "958f0bd8f81dbd7c03e1fba4727c833627bd9a9a12ce47e32f8274c6b424c28f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "958f0bd8f81dbd7c03e1fba4727c833627bd9a9a12ce47e32f8274c6b424c28f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "958f0bd8f81dbd7c03e1fba4727c833627bd9a9a12ce47e32f8274c6b424c28f", kill_on_drop: false }` [INFO] [stdout] 958f0bd8f81dbd7c03e1fba4727c833627bd9a9a12ce47e32f8274c6b424c28f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 1463ff64f15a87899ae238d0f96d812ab3cb1e69ec4930bfbe81710f5564ffab [INFO] running `Command { std: "docker" "start" "-a" "1463ff64f15a87899ae238d0f96d812ab3cb1e69ec4930bfbe81710f5564ffab", 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] [stderr] Compiling syn v1.0.56 [INFO] [stderr] Checking bytes v0.5.6 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Checking pin-project-lite v0.1.11 [INFO] [stderr] Checking fnv v1.0.7 [INFO] [stderr] Compiling tokio-macros v0.2.6 [INFO] [stderr] Checking tokio v0.2.24 [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 21.53s [INFO] running `Command { std: "docker" "inspect" "1463ff64f15a87899ae238d0f96d812ab3cb1e69ec4930bfbe81710f5564ffab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1463ff64f15a87899ae238d0f96d812ab3cb1e69ec4930bfbe81710f5564ffab", kill_on_drop: false }` [INFO] [stdout] 1463ff64f15a87899ae238d0f96d812ab3cb1e69ec4930bfbe81710f5564ffab