[INFO] fetching crate unsend 0.2.1... [INFO] checking unsend-0.2.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate unsend 0.2.1 into /workspace/builds/worker-0-tc2/source [INFO] started tweaking crates.io crate unsend 0.2.1 [INFO] finished tweaking crates.io crate unsend 0.2.1 [INFO] tweaked toml for crates.io crate unsend 0.2.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate unsend 0.2.1 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate unsend 0.2.1 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5f728eed7d2ab44e9c7c342da65501735e39344eef65ec9ee91f09469404f7ec [INFO] running `Command { std: "docker" "start" "-a" "5f728eed7d2ab44e9c7c342da65501735e39344eef65ec9ee91f09469404f7ec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5f728eed7d2ab44e9c7c342da65501735e39344eef65ec9ee91f09469404f7ec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5f728eed7d2ab44e9c7c342da65501735e39344eef65ec9ee91f09469404f7ec", kill_on_drop: false }` [INFO] [stdout] 5f728eed7d2ab44e9c7c342da65501735e39344eef65ec9ee91f09469404f7ec [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 07697adf729c298c529cfa46210cf5c358c627408ba3b61461ca0895c12d9c1b [INFO] running `Command { std: "docker" "start" "-a" "07697adf729c298c529cfa46210cf5c358c627408ba3b61461ca0895c12d9c1b", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.8.15 [INFO] [stderr] Checking fastrand v1.9.0 [INFO] [stderr] Checking event-listener v2.5.3 [INFO] [stderr] Compiling io-lifetimes v1.0.10 [INFO] [stderr] Checking parking v2.1.0 [INFO] [stderr] Checking futures-io v0.3.28 [INFO] [stderr] Compiling polling v2.8.0 [INFO] [stderr] Compiling rustix v0.37.15 [INFO] [stderr] Compiling async-io v1.13.0 [INFO] [stderr] Checking async-task v4.4.0 [INFO] [stderr] Checking atomic-waker v1.1.1 [INFO] [stderr] Checking socket2 v0.4.9 [INFO] [stderr] Checking async-lock v2.7.0 [INFO] [stderr] Checking futures-lite v1.13.0 [INFO] [stderr] Checking concurrent-queue v2.2.0 [INFO] [stderr] Checking async-channel v1.8.0 [INFO] [stderr] Checking blocking v1.3.1 [INFO] [stderr] Checking unsend v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unexpected `cfg` condition name: `coverage` [INFO] [stdout] --> src/lib.rs:25:13 [INFO] [stdout] | [INFO] [stdout] 25 | #![cfg_attr(coverage, feature(no_coverage))] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: expected names are: `docsrs`, `feature`, and `test` and 31 more [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(coverage)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `coverage` [INFO] [stdout] --> src/channel.rs:197:16 [INFO] [stdout] | [INFO] [stdout] 197 | #[cfg_attr(coverage, no_coverage)] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(coverage)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `coverage` [INFO] [stdout] --> src/channel.rs:217:16 [INFO] [stdout] | [INFO] [stdout] 217 | #[cfg_attr(coverage, no_coverage)] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(coverage)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `coverage` [INFO] [stdout] --> src/channel.rs:228:16 [INFO] [stdout] | [INFO] [stdout] 228 | #[cfg_attr(coverage, no_coverage)] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(coverage)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `coverage` [INFO] [stdout] --> src/executor.rs:311:16 [INFO] [stdout] | [INFO] [stdout] 311 | #[cfg_attr(coverage, no_coverage)] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(coverage)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `coverage` [INFO] [stdout] --> src/executor.rs:482:16 [INFO] [stdout] | [INFO] [stdout] 482 | #[cfg_attr(coverage, no_coverage)] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(coverage)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `coverage` [INFO] [stdout] --> src/executor.rs:489:16 [INFO] [stdout] | [INFO] [stdout] 489 | #[cfg_attr(coverage, no_coverage)] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(coverage)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `coverage` [INFO] [stdout] --> src/executor.rs:496:16 [INFO] [stdout] | [INFO] [stdout] 496 | #[cfg_attr(coverage, no_coverage)] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(coverage)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `coverage` [INFO] [stdout] --> src/executor.rs:503:16 [INFO] [stdout] | [INFO] [stdout] 503 | #[cfg_attr(coverage, no_coverage)] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(coverage)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `coverage` [INFO] [stdout] --> src/executor.rs:510:16 [INFO] [stdout] | [INFO] [stdout] 510 | #[cfg_attr(coverage, no_coverage)] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(coverage)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `core::sync::atomic` [INFO] [stdout] --> src/lib.rs:50:13 [INFO] [stdout] | [INFO] [stdout] 50 | pub use core::sync::atomic; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result<&T, Infallible> [INFO] [stdout] --> src/lock/once_cell.rs:145:15 [INFO] [stdout] | [INFO] [stdout] 145 | match self [INFO] [stdout] | _______________^ [INFO] [stdout] 146 | | .get_or_try_init(async move { Ok::(setter.await) }) [INFO] [stdout] 147 | | .await [INFO] [stdout] | |__________________^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result<&T, Infallible> [INFO] [stdout] --> src/lock/once_cell.rs:147:14 [INFO] [stdout] | [INFO] [stdout] 147 | .await [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result<&T, Infallible> [INFO] [stdout] --> src/lock/once_cell.rs:145:15 [INFO] [stdout] | [INFO] [stdout] 145 | match self [INFO] [stdout] | _______________^ [INFO] [stdout] 146 | | .get_or_try_init(async move { Ok::(setter.await) }) [INFO] [stdout] 147 | | .await [INFO] [stdout] | |__________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `unsend` (lib) due to 3 previous errors; 11 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "07697adf729c298c529cfa46210cf5c358c627408ba3b61461ca0895c12d9c1b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "07697adf729c298c529cfa46210cf5c358c627408ba3b61461ca0895c12d9c1b", kill_on_drop: false }` [INFO] [stdout] 07697adf729c298c529cfa46210cf5c358c627408ba3b61461ca0895c12d9c1b