[INFO] updating cached repository https://github.com/shelbyd/par_async
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db58c7a481f374b0bd860208b976a646442591de
[INFO] testing shelbyd/par_async against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshelbyd%2Fpar_async" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shelbyd/par_async on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shelbyd/par_async
[INFO] finished tweaking git repo https://github.com/shelbyd/par_async
[INFO] tweaked toml for git repo https://github.com/shelbyd/par_async written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/shelbyd/par_async already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc977e5e18066cd7bfc9c262dbdfd5d48eb1a8041dde45aec62b414b9f5196ca
[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" "bc977e5e18066cd7bfc9c262dbdfd5d48eb1a8041dde45aec62b414b9f5196ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc977e5e18066cd7bfc9c262dbdfd5d48eb1a8041dde45aec62b414b9f5196ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc977e5e18066cd7bfc9c262dbdfd5d48eb1a8041dde45aec62b414b9f5196ca", kill_on_drop: false }`
[INFO] [stdout] bc977e5e18066cd7bfc9c262dbdfd5d48eb1a8041dde45aec62b414b9f5196ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d605f04773e8a105298de20e692a7e483a311253c6593152ee8a15f41d7f509
[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" "1d605f04773e8a105298de20e692a7e483a311253c6593152ee8a15f41d7f509", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling par_async v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.43s
[INFO] running `Command { std: "docker" "inspect" "1d605f04773e8a105298de20e692a7e483a311253c6593152ee8a15f41d7f509", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d605f04773e8a105298de20e692a7e483a311253c6593152ee8a15f41d7f509", kill_on_drop: false }`
[INFO] [stdout] 1d605f04773e8a105298de20e692a7e483a311253c6593152ee8a15f41d7f509
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 038ff282b0bcee3f1a773187e59516945a57ee77cc450ef02e0ba5e95cb73483
[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" "038ff282b0bcee3f1a773187e59516945a57ee77cc450ef02e0ba5e95cb73483", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling futures-io-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling futures-executor-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling futures-test-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling par_async v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 13.85s
[INFO] running `Command { std: "docker" "inspect" "038ff282b0bcee3f1a773187e59516945a57ee77cc450ef02e0ba5e95cb73483", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "038ff282b0bcee3f1a773187e59516945a57ee77cc450ef02e0ba5e95cb73483", kill_on_drop: false }`
[INFO] [stdout] 038ff282b0bcee3f1a773187e59516945a57ee77cc450ef02e0ba5e95cb73483
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 402ce1e2531ef22fd284e70c4cc8a3007199b3be0869d008fcbbf9243dbc054e
[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" "402ce1e2531ef22fd284e70c4cc8a3007199b3be0869d008fcbbf9243dbc054e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.22s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/par_async-b7d81716a4e3a8b2
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/par_async-da50690165581ddf
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test it_awaits_a_future ... ok
[INFO] [stdout] test it_allows_expressions_of_the_await ... ok
[INFO] [stdout] test it_immediately_returns_immediate_async ... ok
[INFO] [stdout] test it_does_not_affect_non_async_functions ... ok
[INFO] [stdout] test it_parallelizes_three_futures ... ok
[INFO] [stdout] test it_runs_expressions_before_the_await ... ignored
[INFO] [stdout] test support::echo::echo_tests::echo_ready_when_return_after_creation ... ok
[INFO] [stdout] test support::echo::echo_tests::echo_pending_while_not_returning ... ok
[INFO] [stdout] test support::echo::echo_tests::echo_only_returns_from_first_poll_of_same_value ... ok
[INFO] [stdout] test it_parallelizes_two_futures ... ok
[INFO] [stdout] test support::echo::echo_tests::echo_returns_immediately_when_previously_told_to ... ok
[INFO] [stderr]    Doc-tests par_async
[INFO] [stdout] test support::echo::echo_tests::echo_polling_same_one_after_complete_panics ... ok
[INFO] [stdout] test support::echo::echo_tests::echo_move_after_poll_panics ... ok
[INFO] [stdout] test support::echo::echo_tests::echo_move_after_poll_before_drop ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "402ce1e2531ef22fd284e70c4cc8a3007199b3be0869d008fcbbf9243dbc054e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "402ce1e2531ef22fd284e70c4cc8a3007199b3be0869d008fcbbf9243dbc054e", kill_on_drop: false }`
[INFO] [stdout] 402ce1e2531ef22fd284e70c4cc8a3007199b3be0869d008fcbbf9243dbc054e