[INFO] fetching crate signals2 0.3.1...
[INFO] testing signals2-0.3.1 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate signals2 0.3.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate signals2 0.3.1 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate signals2 0.3.1
[INFO] finished tweaking crates.io crate signals2 0.3.1
[INFO] tweaked toml for crates.io crate signals2 0.3.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6911bfe43e2e210e02cb5516fd5ede4466f242173e5bf113ee302d6e1f27e56d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6911bfe43e2e210e02cb5516fd5ede4466f242173e5bf113ee302d6e1f27e56d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6911bfe43e2e210e02cb5516fd5ede4466f242173e5bf113ee302d6e1f27e56d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6911bfe43e2e210e02cb5516fd5ede4466f242173e5bf113ee302d6e1f27e56d", kill_on_drop: false }`
[INFO] [stdout] 6911bfe43e2e210e02cb5516fd5ede4466f242173e5bf113ee302d6e1f27e56d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb8509c8f49f7487a51ba2efeed2dfa9ae4245760588b232ff8f07f04870a6c9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cb8509c8f49f7487a51ba2efeed2dfa9ae4245760588b232ff8f07f04870a6c9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling signals2 v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.47s
[INFO] running `Command { std: "docker" "inspect" "cb8509c8f49f7487a51ba2efeed2dfa9ae4245760588b232ff8f07f04870a6c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb8509c8f49f7487a51ba2efeed2dfa9ae4245760588b232ff8f07f04870a6c9", kill_on_drop: false }`
[INFO] [stdout] cb8509c8f49f7487a51ba2efeed2dfa9ae4245760588b232ff8f07f04870a6c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab039178f4d3c443a433255b7f29efd1877ac076490cc9c5e794ef3d64441fba
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ab039178f4d3c443a433255b7f29efd1877ac076490cc9c5e794ef3d64441fba", kill_on_drop: false }`
[INFO] [stderr]    Compiling signals2 v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.89s
[INFO] running `Command { std: "docker" "inspect" "ab039178f4d3c443a433255b7f29efd1877ac076490cc9c5e794ef3d64441fba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab039178f4d3c443a433255b7f29efd1877ac076490cc9c5e794ef3d64441fba", kill_on_drop: false }`
[INFO] [stdout] ab039178f4d3c443a433255b7f29efd1877ac076490cc9c5e794ef3d64441fba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4eb2b864bf550ab493e9a8e29a9254ba569d9d53186dad5656f644de71ec836e
[INFO] running `Command { std: "docker" "start" "-a" "4eb2b864bf550ab493e9a8e29a9254ba569d9d53186dad5656f644de71ec836e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 3 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/signals2-44d486a4e3a5d96b)
[INFO] [stdout] test combiner::tests::default_combiner_test ... ok
[INFO] [stdout] test combiner::tests::vec_combiner_test ... ok
[INFO] [stdout] test combiner::tests::sum_combiner_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/integration_tests.rs (/opt/rustwide/target/debug/deps/integration_tests-8d12483c85bfd393)
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test disconnect_test ... ok
[INFO] [stdout] test lazy_slots_test ... ok
[INFO] [stdout] test connect_handle_test ... ok
[INFO] [stdout] test basic_signal_test ... ok
[INFO] [stdout] test weak_signal_test ... ok
[INFO] [stdout] test mutually_recursive_connect_test ... ok
[INFO] [stdout] test block_while_emitting ... ok
[INFO] [stdout] test emit_handle_test ... ok
[INFO] [stdout] test connect_while_emitting ... ok
[INFO] [stdout] test connection_block_test ... ok
[INFO] [stdout] test disconnect_while_emitting ... ok
[INFO] [stdout] test recursive_connect_test ... ok
[INFO] [stdout] test position_group_order_test ... ok
[INFO] [stdout] test async_emit_test ... ok
[INFO] [stdout] test async_disconnect_test ... ok
[INFO] [stdout] test signal_emitting_cloned_block_test ... ok
[INFO] [stderr]    Doc-tests signals2
[INFO] [stdout] test async_connect_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test src/connect.rs - connect::SharedConnectionBlock (line 355) ... ok
[INFO] [stdout] test src/connect.rs - connect::ScopedConnection (line 338) ... ok
[INFO] [stdout] test src/lib.rs - Signal (line 79) ... ok
[INFO] [stdout] test src/lib.rs - Signal (line 59) ... ok
[INFO] [stdout] test src/connect.rs - connect::SharedConnectionBlock (line 377) ... ok
[INFO] [stdout] test src/connect.rs - connect::Connection (line 322) ... ok
[INFO] [stdout] test src/lib.rs - ConnectHandle (line 263) ... ok
[INFO] [stdout] test src/lib.rs - Signal<Args,R,C,G>::clone (line 109) ... ok
[INFO] [stdout] test src/lib.rs - WeakSignal (line 200) ... ok
[INFO] [stdout] test src/lib.rs - Signal (line 69) ... ok
[INFO] [stdout] test src/lib.rs - Signal (line 49) ... ok
[INFO] [stdout] test src/lib.rs - EmitHandle (line 293) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.64s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4eb2b864bf550ab493e9a8e29a9254ba569d9d53186dad5656f644de71ec836e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4eb2b864bf550ab493e9a8e29a9254ba569d9d53186dad5656f644de71ec836e", kill_on_drop: false }`
[INFO] [stdout] 4eb2b864bf550ab493e9a8e29a9254ba569d9d53186dad5656f644de71ec836e