[INFO] fetching crate singleton-task 0.4.1...
[INFO] testing singleton-task-0.4.1 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1
[INFO] extracting crate singleton-task 0.4.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate singleton-task 0.4.1
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate singleton-task 0.4.1
[INFO] tweaked toml for crates.io crate singleton-task 0.4.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate singleton-task 0.4.1 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate singleton-task 0.4.1 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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 26223d9360bb474902755b4ef0b697eb5d3bf0d12dd731b6a6cde2488dc0c8c8
[INFO] running `Command { std: "docker" "start" "-a" "26223d9360bb474902755b4ef0b697eb5d3bf0d12dd731b6a6cde2488dc0c8c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26223d9360bb474902755b4ef0b697eb5d3bf0d12dd731b6a6cde2488dc0c8c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26223d9360bb474902755b4ef0b697eb5d3bf0d12dd731b6a6cde2488dc0c8c8", kill_on_drop: false }`
[INFO] [stdout] 26223d9360bb474902755b4ef0b697eb5d3bf0d12dd731b6a6cde2488dc0c8c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c4eee54000be1736fd19f1431085a04a08e9f708be93b72fda3387db1b0af3e
[INFO] running `Command { std: "docker" "start" "-a" "7c4eee54000be1736fd19f1431085a04a08e9f708be93b72fda3387db1b0af3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling socket2 v0.5.10
[INFO] [stderr]    Compiling signal-hook-registry v1.4.5
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling async-trait v0.1.88
[INFO] [stderr]    Compiling tokio v1.45.1
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling tokio-util v0.7.15
[INFO] [stderr]    Compiling tokio-stream v0.1.17
[INFO] [stderr]    Compiling singleton-task v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.17s
[INFO] running `Command { std: "docker" "inspect" "7c4eee54000be1736fd19f1431085a04a08e9f708be93b72fda3387db1b0af3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c4eee54000be1736fd19f1431085a04a08e9f708be93b72fda3387db1b0af3e", kill_on_drop: false }`
[INFO] [stdout] 7c4eee54000be1736fd19f1431085a04a08e9f708be93b72fda3387db1b0af3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54273180a391060e29367ec5afeea160a51ad527b6a199462f4ec576e4fed43e
[INFO] running `Command { std: "docker" "start" "-a" "54273180a391060e29367ec5afeea160a51ad527b6a199462f4ec576e4fed43e", kill_on_drop: false }`
[INFO] [stderr]    Compiling env_logger v0.11.8
[INFO] [stderr]    Compiling singleton-task v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.57s
[INFO] running `Command { std: "docker" "inspect" "54273180a391060e29367ec5afeea160a51ad527b6a199462f4ec576e4fed43e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54273180a391060e29367ec5afeea160a51ad527b6a199462f4ec576e4fed43e", kill_on_drop: false }`
[INFO] [stdout] 54273180a391060e29367ec5afeea160a51ad527b6a199462f4ec576e4fed43e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e73a7d3e40800bd5c45ea01fc40e6efdaae299d55032cbbfc05caacb2776d781
[INFO] running `Command { std: "docker" "start" "-a" "e73a7d3e40800bd5c45ea01fc40e6efdaae299d55032cbbfc05caacb2776d781", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/singleton_task-ef5b707acc6ab962)
[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] [stderr]      Running tests/test.rs (/opt/rustwide/target/debug/deps/test-13e1958165787f79)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test test_error_handling_multithreaded ... ok
[INFO] [stdout] test test_concurrent_stop ... ok
[INFO] [stdout] test test_concurrent_task_start ... ok
[INFO] [stdout] test test_stop ... ok
[INFO] [stdout] test test_rapid_task_replacement ... ok
[INFO] [stdout] test test_multiple_task_startup ... ok
[INFO] [stdout] test test_high_concurrency ... ok
[INFO] [stdout] test test_stop2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.09s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests singleton_task
[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" "e73a7d3e40800bd5c45ea01fc40e6efdaae299d55032cbbfc05caacb2776d781", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e73a7d3e40800bd5c45ea01fc40e6efdaae299d55032cbbfc05caacb2776d781", kill_on_drop: false }`
[INFO] [stdout] e73a7d3e40800bd5c45ea01fc40e6efdaae299d55032cbbfc05caacb2776d781