[INFO] fetching crate wait-for-me 0.2.0...
[INFO] testing wait-for-me-0.2.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate wait-for-me 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate wait-for-me 0.2.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wait-for-me 0.2.0
[INFO] finished tweaking crates.io crate wait-for-me 0.2.0
[INFO] tweaked toml for crates.io crate wait-for-me 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate wait-for-me 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--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 async-std v1.5.0
[INFO] [stderr]   Downloaded async-task v1.3.1
[INFO] [stderr]   Downloaded kv-log-macro v1.0.4
[INFO] [stderr]   Downloaded futures-timer v2.0.2
[INFO] [stderr]   Downloaded smol-potat v0.2.1
[INFO] [stderr]   Downloaded event-listener v1.0.1
[INFO] [stderr]   Downloaded async-lock v1.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 025c84afe3d883c2398279b5e1ec863393a3a138659b338556eefc6821cfbd41
[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" "025c84afe3d883c2398279b5e1ec863393a3a138659b338556eefc6821cfbd41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "025c84afe3d883c2398279b5e1ec863393a3a138659b338556eefc6821cfbd41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "025c84afe3d883c2398279b5e1ec863393a3a138659b338556eefc6821cfbd41", kill_on_drop: false }`
[INFO] [stdout] 025c84afe3d883c2398279b5e1ec863393a3a138659b338556eefc6821cfbd41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7fe3cfa0d6d7b469ca2e0f8a315f02baa2be7ee6ca087844a74d91ee8997c64b
[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" "7fe3cfa0d6d7b469ca2e0f8a315f02baa2be7ee6ca087844a74d91ee8997c64b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling futures-io v0.3.4
[INFO] [stderr]    Compiling event-listener v1.0.1
[INFO] [stderr]    Compiling futures-channel v0.3.4
[INFO] [stderr]    Compiling async-lock v1.0.2
[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 wait-for-me v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.77s
[INFO] running `Command { std: "docker" "inspect" "7fe3cfa0d6d7b469ca2e0f8a315f02baa2be7ee6ca087844a74d91ee8997c64b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fe3cfa0d6d7b469ca2e0f8a315f02baa2be7ee6ca087844a74d91ee8997c64b", kill_on_drop: false }`
[INFO] [stdout] 7fe3cfa0d6d7b469ca2e0f8a315f02baa2be7ee6ca087844a74d91ee8997c64b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", 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] c7575ede1ea9efe4d6efcca086b9f7f38cf892ce25efad579c2ba894a364b7d8
[INFO] running `Command { std: "docker" "start" "-a" "c7575ede1ea9efe4d6efcca086b9f7f38cf892ce25efad579c2ba894a364b7d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling scoped-tls-hkt v0.1.2
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling socket2 v0.3.12
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling async-task v1.3.1
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling smol-potat v0.2.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling crossbeam-channel v0.4.2
[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling piper v0.1.1
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling kv-log-macro v1.0.4
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling crossbeam v0.7.3
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling async-std v1.5.0
[INFO] [stderr]    Compiling tokio v0.2.20
[INFO] [stderr]    Compiling smol v0.1.4
[INFO] [stderr]    Compiling wait-for-me v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 29.55s
[INFO] running `Command { std: "docker" "inspect" "c7575ede1ea9efe4d6efcca086b9f7f38cf892ce25efad579c2ba894a364b7d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7575ede1ea9efe4d6efcca086b9f7f38cf892ce25efad579c2ba894a364b7d8", kill_on_drop: false }`
[INFO] [stdout] c7575ede1ea9efe4d6efcca086b9f7f38cf892ce25efad579c2ba894a364b7d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f007f5c5144dade3328bc343c9aeccc12c82d559b8f71efc614bab7bb8b64e52
[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" "f007f5c5144dade3328bc343c9aeccc12c82d559b8f71efc614bab7bb8b64e52", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/wait_for_me-a8f799ff466d6a9a
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::countdownlatch_count_test ... ok
[INFO] [stdout] test tests::countdownlatch_test ... ok
[INFO] [stdout] test tests::countdownlatch_post_wait_test ... ok
[INFO] [stdout] test tests::countdownlatch_concurrent_test ... ok
[INFO] [stdout] test tests::countdownlatch_no_wait_test ... ok
[INFO] [stderr]    Doc-tests wait-for-me
[INFO] [stdout] test tests::wait_with_timeout_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 7) ... ok
[INFO] [stdout] test src/lib.rs - (line 27) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.42s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f007f5c5144dade3328bc343c9aeccc12c82d559b8f71efc614bab7bb8b64e52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f007f5c5144dade3328bc343c9aeccc12c82d559b8f71efc614bab7bb8b64e52", kill_on_drop: false }`
[INFO] [stdout] f007f5c5144dade3328bc343c9aeccc12c82d559b8f71efc614bab7bb8b64e52