[INFO] fetching crate task-group 0.2.2... [INFO] testing task-group-0.2.2 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1 [INFO] extracting crate task-group 0.2.2 into /workspace/builds/worker-7-tc1/source [INFO] started tweaking crates.io crate task-group 0.2.2 [INFO] finished tweaking crates.io crate task-group 0.2.2 [INFO] tweaked toml for crates.io crate task-group 0.2.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate task-group 0.2.2 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate task-group 0.2.2 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded parking_lot v0.11.1 [INFO] [stderr] Downloaded pin-project-lite v0.2.6 [INFO] [stderr] Downloaded instant v0.1.9 [INFO] [stderr] Downloaded hermit-abi v0.1.18 [INFO] [stderr] Downloaded anyhow v1.0.40 [INFO] [stderr] Downloaded bytes v1.0.1 [INFO] [stderr] Downloaded lock_api v0.4.2 [INFO] [stderr] Downloaded redox_syscall v0.2.5 [INFO] [stderr] Downloaded smallvec v1.6.1 [INFO] [stderr] Downloaded once_cell v1.7.2 [INFO] [stderr] Downloaded parking_lot_core v0.8.3 [INFO] [stderr] Downloaded quote v1.0.9 [INFO] [stderr] Downloaded syn v1.0.67 [INFO] [stderr] Downloaded tokio-macros v1.1.0 [INFO] [stderr] Downloaded signal-hook-registry v1.3.0 [INFO] [stderr] Downloaded mio v0.7.11 [INFO] [stderr] Downloaded libc v0.2.91 [INFO] [stderr] Downloaded tokio v1.4.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 97d521fd9b2279583053faf496056f8bbeca2046030a174dab4cc0dbfca1f108 [INFO] running `Command { std: "docker" "start" "-a" "97d521fd9b2279583053faf496056f8bbeca2046030a174dab4cc0dbfca1f108", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "97d521fd9b2279583053faf496056f8bbeca2046030a174dab4cc0dbfca1f108", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "97d521fd9b2279583053faf496056f8bbeca2046030a174dab4cc0dbfca1f108", kill_on_drop: false }` [INFO] [stdout] 97d521fd9b2279583053faf496056f8bbeca2046030a174dab4cc0dbfca1f108 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3d4d3cedd22419f8f315c571427556a95d2988e25a2cd7006ecf7aed49a63479 [INFO] running `Command { std: "docker" "start" "-a" "3d4d3cedd22419f8f315c571427556a95d2988e25a2cd7006ecf7aed49a63479", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.91 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling syn v1.0.67 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling smallvec v1.6.1 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling once_cell v1.7.2 [INFO] [stderr] Compiling pin-project-lite v0.2.6 [INFO] [stderr] Compiling bytes v1.0.1 [INFO] [stderr] Compiling instant v0.1.9 [INFO] [stderr] Compiling lock_api v0.4.2 [INFO] [stderr] Compiling tokio v1.4.0 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling parking_lot_core v0.8.3 [INFO] [stderr] Compiling mio v0.7.11 [INFO] [stderr] Compiling signal-hook-registry v1.3.0 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling parking_lot v0.11.1 [INFO] [stderr] Compiling tokio-macros v1.1.0 [INFO] [stderr] Compiling task-group v0.2.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.73s [INFO] running `Command { std: "docker" "inspect" "3d4d3cedd22419f8f315c571427556a95d2988e25a2cd7006ecf7aed49a63479", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3d4d3cedd22419f8f315c571427556a95d2988e25a2cd7006ecf7aed49a63479", kill_on_drop: false }` [INFO] [stdout] 3d4d3cedd22419f8f315c571427556a95d2988e25a2cd7006ecf7aed49a63479 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 72e872446c1f0ac4a70d916b5ff8a1aa8473bcc73c0faf66a711ca6a93bb743b [INFO] running `Command { std: "docker" "start" "-a" "72e872446c1f0ac4a70d916b5ff8a1aa8473bcc73c0faf66a711ca6a93bb743b", kill_on_drop: false }` [INFO] [stderr] Compiling anyhow v1.0.40 [INFO] [stderr] Compiling task-group v0.2.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> src/lib.rs:566:13 [INFO] [stdout] | [INFO] [stdout] 566 | drop(big_object); [INFO] [stdout] | ^^^^^----------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `[u8; 4096]` [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] 566 - drop(big_object); [INFO] [stdout] 566 + let _ = big_object; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 3.42s [INFO] running `Command { std: "docker" "inspect" "72e872446c1f0ac4a70d916b5ff8a1aa8473bcc73c0faf66a711ca6a93bb743b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "72e872446c1f0ac4a70d916b5ff8a1aa8473bcc73c0faf66a711ca6a93bb743b", kill_on_drop: false }` [INFO] [stdout] 72e872446c1f0ac4a70d916b5ff8a1aa8473bcc73c0faf66a711ca6a93bb743b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 06fd22ab7e2f848e7176fa2861f9d15da49c4bbaeb2a9c45f6beb990fba33a9d [INFO] running `Command { std: "docker" "start" "-a" "06fd22ab7e2f848e7176fa2861f9d15da49c4bbaeb2a9c45f6beb990fba33a9d", kill_on_drop: false }` [INFO] [stderr] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stderr] --> src/lib.rs:566:13 [INFO] [stderr] | [INFO] [stderr] 566 | drop(big_object); [INFO] [stderr] | ^^^^^----------^ [INFO] [stderr] | | [INFO] [stderr] | argument has type `[u8; 4096]` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dropping_copy_types)]` on by default [INFO] [stderr] help: use `let _ = ...` to ignore the expression or result [INFO] [stderr] | [INFO] [stderr] 566 - drop(big_object); [INFO] [stderr] 566 + let _ = big_object; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `task-group` (lib test) generated 1 warning [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/task_group-13d3ee6529039d09) [INFO] [stdout] [INFO] [stdout] running 12 tests [INFO] [stdout] test test::empty_child ... ok [INFO] [stdout] test test::many_nested_children ... ok [INFO] [stdout] test test::many_nested_children_error ... ok [INFO] [stdout] test test::no_task ... ok [INFO] [stdout] test test::child_task_errors ... ok [INFO] [stdout] test test::one_empty_task ... ok [INFO] [stdout] test test::sizes_of_futures ... ok [INFO] [stdout] test test::root_task_errors ... ok [INFO] [stdout] test test::root_task_panics ... ok [INFO] [stdout] test test::child_task_panics ... ok [INFO] [stdout] test test::child_sleep_no_timeout ... ok [INFO] [stdout] test test::child_sleep_timeout ... ok [INFO] [stderr] Doc-tests task_group [INFO] [stdout] [INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.19s [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" "06fd22ab7e2f848e7176fa2861f9d15da49c4bbaeb2a9c45f6beb990fba33a9d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "06fd22ab7e2f848e7176fa2861f9d15da49c4bbaeb2a9c45f6beb990fba33a9d", kill_on_drop: false }` [INFO] [stdout] 06fd22ab7e2f848e7176fa2861f9d15da49c4bbaeb2a9c45f6beb990fba33a9d