[INFO] cloning repository https://github.com/rklaehn/kiss-queue [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rklaehn/kiss-queue" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frklaehn%2Fkiss-queue", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frklaehn%2Fkiss-queue'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d685d88c01b26d979c6cb1dfcd8f8319ba826daf [INFO] testing rklaehn/kiss-queue against try#0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6 for pr-137122-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frklaehn%2Fkiss-queue" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/rklaehn/kiss-queue [INFO] finished tweaking git repo https://github.com/rklaehn/kiss-queue [INFO] tweaked toml for git repo https://github.com/rklaehn/kiss-queue written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/rklaehn/kiss-queue on toolchain 0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/rklaehn/kiss-queue 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" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 579cc255e906387296ef6dfdd67d184e5ce4194eced94f5cbfcd2d08f3f57f51 [INFO] running `Command { std: "docker" "start" "-a" "579cc255e906387296ef6dfdd67d184e5ce4194eced94f5cbfcd2d08f3f57f51", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "579cc255e906387296ef6dfdd67d184e5ce4194eced94f5cbfcd2d08f3f57f51", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "579cc255e906387296ef6dfdd67d184e5ce4194eced94f5cbfcd2d08f3f57f51", kill_on_drop: false }` [INFO] [stdout] 579cc255e906387296ef6dfdd67d184e5ce4194eced94f5cbfcd2d08f3f57f51 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5dd20f0cdb7d93d0fe291b1c613599a2d3cb21d8c5a7c50eb99dfa8fb0ba002b [INFO] running `Command { std: "docker" "start" "-a" "5dd20f0cdb7d93d0fe291b1c613599a2d3cb21d8c5a7c50eb99dfa8fb0ba002b", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.8 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling syn v1.0.14 [INFO] [stderr] Compiling memchr v2.3.2 [INFO] [stderr] Compiling proc-macro-nested v0.1.3 [INFO] [stderr] Compiling futures-core v0.3.4 [INFO] [stderr] Compiling futures-sink v0.3.4 [INFO] [stderr] Compiling futures-task v0.3.4 [INFO] [stderr] Compiling futures-channel v0.3.4 [INFO] [stderr] Compiling futures-io v0.3.4 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling pin-utils v0.1.0-alpha.4 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Compiling proc-macro-hack v0.5.11 [INFO] [stderr] Compiling futures-macro v0.3.4 [INFO] [stderr] Compiling futures-util v0.3.4 [INFO] [stderr] Compiling futures-executor v0.3.4 [INFO] [stderr] Compiling futures v0.3.4 [INFO] [stderr] Compiling kiss-queue v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> src/lib.rs:71:26 [INFO] [stdout] | [INFO] [stdout] 71 | for waker in inner.waker.take() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to check pattern in a loop use `while let` [INFO] [stdout] | [INFO] [stdout] 71 - for waker in inner.waker.take() { [INFO] [stdout] 71 + while let Some(waker) = inner.waker.take() { [INFO] [stdout] | [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 71 - for waker in inner.waker.take() { [INFO] [stdout] 71 + if let Some(waker) = inner.waker.take() { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> src/lib.rs:89:22 [INFO] [stdout] | [INFO] [stdout] 89 | for waker in self.0.lock().unwrap().waker.take() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: to check pattern in a loop use `while let` [INFO] [stdout] | [INFO] [stdout] 89 - for waker in self.0.lock().unwrap().waker.take() { [INFO] [stdout] 89 + while let Some(waker) = self.0.lock().unwrap().waker.take() { [INFO] [stdout] | [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 89 - for waker in self.0.lock().unwrap().waker.take() { [INFO] [stdout] 89 + if let Some(waker) = self.0.lock().unwrap().waker.take() { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.80s [INFO] running `Command { std: "docker" "inspect" "5dd20f0cdb7d93d0fe291b1c613599a2d3cb21d8c5a7c50eb99dfa8fb0ba002b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5dd20f0cdb7d93d0fe291b1c613599a2d3cb21d8c5a7c50eb99dfa8fb0ba002b", kill_on_drop: false }` [INFO] [stdout] 5dd20f0cdb7d93d0fe291b1c613599a2d3cb21d8c5a7c50eb99dfa8fb0ba002b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4b03b754a2461dbf04e52c5a40b49451f96fbaaea08ecf97063eddff3e445a5b [INFO] running `Command { std: "docker" "start" "-a" "4b03b754a2461dbf04e52c5a40b49451f96fbaaea08ecf97063eddff3e445a5b", kill_on_drop: false }` [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling scopeguard v1.0.0 [INFO] [stderr] Compiling once_cell v1.3.1 [INFO] [stderr] Compiling futures-timer v2.0.2 [INFO] [stderr] Compiling pin-project-lite v0.1.4 [INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> src/lib.rs:71:26 [INFO] [stdout] | [INFO] [stdout] 71 | for waker in inner.waker.take() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to check pattern in a loop use `while let` [INFO] [stdout] | [INFO] [stdout] 71 - for waker in inner.waker.take() { [INFO] [stdout] 71 + while let Some(waker) = inner.waker.take() { [INFO] [stdout] | [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 71 - for waker in inner.waker.take() { [INFO] [stdout] 71 + if let Some(waker) = inner.waker.take() { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> src/lib.rs:89:22 [INFO] [stdout] | [INFO] [stdout] 89 | for waker in self.0.lock().unwrap().waker.take() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: to check pattern in a loop use `while let` [INFO] [stdout] | [INFO] [stdout] 89 - for waker in self.0.lock().unwrap().waker.take() { [INFO] [stdout] 89 + while let Some(waker) = self.0.lock().unwrap().waker.take() { [INFO] [stdout] | [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 89 - for waker in self.0.lock().unwrap().waker.take() { [INFO] [stdout] 89 + if let Some(waker) = self.0.lock().unwrap().waker.take() { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling crossbeam-utils v0.7.0 [INFO] [stderr] Compiling crossbeam-epoch v0.8.0 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling async-task v1.3.1 [INFO] [stderr] Compiling num_cpus v1.12.0 [INFO] [stderr] Compiling kv-log-macro v1.0.4 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling mio v0.6.21 [INFO] [stderr] Compiling crossbeam-channel v0.4.0 [INFO] [stderr] Compiling memoffset v0.5.3 [INFO] [stderr] Compiling crossbeam-deque v0.7.2 [INFO] [stderr] Compiling mio-uds v0.6.7 [INFO] [stderr] Compiling async-std v1.5.0 [INFO] [stderr] Compiling kiss-queue v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> src/lib.rs:71:26 [INFO] [stdout] | [INFO] [stdout] 71 | for waker in inner.waker.take() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to check pattern in a loop use `while let` [INFO] [stdout] | [INFO] [stdout] 71 - for waker in inner.waker.take() { [INFO] [stdout] 71 + while let Some(waker) = inner.waker.take() { [INFO] [stdout] | [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 71 - for waker in inner.waker.take() { [INFO] [stdout] 71 + if let Some(waker) = inner.waker.take() { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> src/lib.rs:89:22 [INFO] [stdout] | [INFO] [stdout] 89 | for waker in self.0.lock().unwrap().waker.take() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: to check pattern in a loop use `while let` [INFO] [stdout] | [INFO] [stdout] 89 - for waker in self.0.lock().unwrap().waker.take() { [INFO] [stdout] 89 + while let Some(waker) = self.0.lock().unwrap().waker.take() { [INFO] [stdout] | [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 89 - for waker in self.0.lock().unwrap().waker.take() { [INFO] [stdout] 89 + if let Some(waker) = self.0.lock().unwrap().waker.take() { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 11.42s [INFO] running `Command { std: "docker" "inspect" "4b03b754a2461dbf04e52c5a40b49451f96fbaaea08ecf97063eddff3e445a5b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4b03b754a2461dbf04e52c5a40b49451f96fbaaea08ecf97063eddff3e445a5b", kill_on_drop: false }` [INFO] [stdout] 4b03b754a2461dbf04e52c5a40b49451f96fbaaea08ecf97063eddff3e445a5b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 3604413d7a5b250a5bc611b09596f19f26504888828994ee8955ff756cc7237e [INFO] running `Command { std: "docker" "start" "-a" "3604413d7a5b250a5bc611b09596f19f26504888828994ee8955ff756cc7237e", kill_on_drop: false }` [INFO] [stderr] warning: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stderr] --> src/lib.rs:71:26 [INFO] [stderr] | [INFO] [stderr] 71 | for waker in inner.waker.take() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stderr] help: to check pattern in a loop use `while let` [INFO] [stderr] | [INFO] [stderr] 71 - for waker in inner.waker.take() { [INFO] [stderr] 71 + while let Some(waker) = inner.waker.take() { [INFO] [stderr] | [INFO] [stderr] help: consider using `if let` to clear intent [INFO] [stderr] | [INFO] [stderr] 71 - for waker in inner.waker.take() { [INFO] [stderr] 71 + if let Some(waker) = inner.waker.take() { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stderr] --> src/lib.rs:89:22 [INFO] [stderr] | [INFO] [stderr] 89 | for waker in self.0.lock().unwrap().waker.take() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] help: to check pattern in a loop use `while let` [INFO] [stderr] | [INFO] [stderr] 89 - for waker in self.0.lock().unwrap().waker.take() { [INFO] [stderr] 89 + while let Some(waker) = self.0.lock().unwrap().waker.take() { [INFO] [stderr] | [INFO] [stderr] help: consider using `if let` to clear intent [INFO] [stderr] | [INFO] [stderr] 89 - for waker in self.0.lock().unwrap().waker.take() { [INFO] [stderr] 89 + if let Some(waker) = self.0.lock().unwrap().waker.take() { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `kiss-queue` (lib) generated 2 warnings [INFO] [stderr] warning: `kiss-queue` (lib test) generated 2 warnings (2 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/kiss_queue-822e0ecbc4aa8465) [INFO] [stderr] Doc-tests kiss_queue [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test tests::smoke ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "3604413d7a5b250a5bc611b09596f19f26504888828994ee8955ff756cc7237e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3604413d7a5b250a5bc611b09596f19f26504888828994ee8955ff756cc7237e", kill_on_drop: false }` [INFO] [stdout] 3604413d7a5b250a5bc611b09596f19f26504888828994ee8955ff756cc7237e