[INFO] fetching crate min-cancel-token 0.1.0... [INFO] checking min-cancel-token-0.1.0 against try#24cd45d7714ba43afd4b8e62fb677b069b21c4a5 for pr-129543 [INFO] extracting crate min-cancel-token 0.1.0 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate min-cancel-token 0.1.0 on toolchain 24cd45d7714ba43afd4b8e62fb677b069b21c4a5 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate min-cancel-token 0.1.0 [INFO] finished tweaking crates.io crate min-cancel-token 0.1.0 [INFO] tweaked toml for crates.io crate min-cancel-token 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 19 packages to latest compatible versions [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] df2aa9a3208789fc76a383ed6746900ecd2aa82f1cdf529d163d820e17ff2447 [INFO] running `Command { std: "docker" "start" "-a" "df2aa9a3208789fc76a383ed6746900ecd2aa82f1cdf529d163d820e17ff2447", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "df2aa9a3208789fc76a383ed6746900ecd2aa82f1cdf529d163d820e17ff2447", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "df2aa9a3208789fc76a383ed6746900ecd2aa82f1cdf529d163d820e17ff2447", kill_on_drop: false }` [INFO] [stdout] df2aa9a3208789fc76a383ed6746900ecd2aa82f1cdf529d163d820e17ff2447 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 36d366836b5e0151b9274804ef1b794fc78ca210ea88bafb2d27cdde68c7ee36 [INFO] running `Command { std: "docker" "start" "-a" "36d366836b5e0151b9274804ef1b794fc78ca210ea88bafb2d27cdde68c7ee36", kill_on_drop: false }` [INFO] [stderr] Checking futures-sink v0.3.30 [INFO] [stderr] Checking futures-core v0.3.30 [INFO] [stderr] Checking memchr v2.7.4 [INFO] [stderr] Checking futures-io v0.3.30 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Checking futures-task v0.3.30 [INFO] [stderr] Checking min-cancel-token v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Compiling syn v2.0.77 [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:184:25 [INFO] [stdout] | [INFO] [stdout] 184 | let mut first = CancellationFunc::from_raw(guard.first_func); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:193:21 [INFO] [stdout] | [INFO] [stdout] 193 | let mut prev = CancellationFunc::from_raw(func.prev); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:196:25 [INFO] [stdout] | [INFO] [stdout] 196 | let mut next = CancellationFunc::from_raw(func.next); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:251:25 [INFO] [stdout] | [INFO] [stdout] 251 | let mut last = CancellationFunc::from_raw(guard.last_func); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:299:25 [INFO] [stdout] | [INFO] [stdout] 299 | let mut first = CancellationFunc::from_raw(guard.first_func); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> src/lib.rs:205:9 [INFO] [stdout] | [INFO] [stdout] 205 | std::mem::drop(data); [INFO] [stdout] | ^^^^^^^^^^^^^^^----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `*const ()` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_copy_types)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 205 - std::mem::drop(data); [INFO] [stdout] 205 + let _ = data; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking futures-executor v0.3.30 [INFO] [stderr] Checking futures v0.3.30 [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:184:25 [INFO] [stdout] | [INFO] [stdout] 184 | let mut first = CancellationFunc::from_raw(guard.first_func); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:193:21 [INFO] [stdout] | [INFO] [stdout] 193 | let mut prev = CancellationFunc::from_raw(func.prev); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:196:25 [INFO] [stdout] | [INFO] [stdout] 196 | let mut next = CancellationFunc::from_raw(func.next); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:251:25 [INFO] [stdout] | [INFO] [stdout] 251 | let mut last = CancellationFunc::from_raw(guard.last_func); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:299:25 [INFO] [stdout] | [INFO] [stdout] 299 | let mut first = CancellationFunc::from_raw(guard.first_func); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> src/lib.rs:205:9 [INFO] [stdout] | [INFO] [stdout] 205 | std::mem::drop(data); [INFO] [stdout] | ^^^^^^^^^^^^^^^----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `*const ()` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_copy_types)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 205 - std::mem::drop(data); [INFO] [stdout] 205 + let _ = data; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.31s [INFO] running `Command { std: "docker" "inspect" "36d366836b5e0151b9274804ef1b794fc78ca210ea88bafb2d27cdde68c7ee36", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "36d366836b5e0151b9274804ef1b794fc78ca210ea88bafb2d27cdde68c7ee36", kill_on_drop: false }` [INFO] [stdout] 36d366836b5e0151b9274804ef1b794fc78ca210ea88bafb2d27cdde68c7ee36