[INFO] fetching crate abscissa_tokio 0.5.1...
[INFO] checking abscissa_tokio-0.5.1 against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] extracting crate abscissa_tokio 0.5.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate abscissa_tokio 0.5.1 on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate abscissa_tokio 0.5.1
[INFO] finished tweaking crates.io crate abscissa_tokio 0.5.1
[INFO] tweaked toml for crates.io crate abscissa_tokio 0.5.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 756c49fefc7c3384d20d366c6d7e661def26fc066379fca12f9f926ac6445534
[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" "756c49fefc7c3384d20d366c6d7e661def26fc066379fca12f9f926ac6445534", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "756c49fefc7c3384d20d366c6d7e661def26fc066379fca12f9f926ac6445534", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "756c49fefc7c3384d20d366c6d7e661def26fc066379fca12f9f926ac6445534", kill_on_drop: false }`
[INFO] [stdout] 756c49fefc7c3384d20d366c6d7e661def26fc066379fca12f9f926ac6445534
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e54ccd11c36e83a467b12a126df37bac8f1e6e8a0f109d5b46b153ce4b03ee6a
[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" "e54ccd11c36e83a467b12a126df37bac8f1e6e8a0f109d5b46b153ce4b03ee6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]     Checking zeroize v1.2.0
[INFO] [stderr]     Checking canonical-path v2.0.2
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking generational-arena v0.2.8
[INFO] [stderr]     Checking tokio v0.2.24
[INFO] [stderr]     Checking signal-hook-registry v1.2.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking color-backtrace v0.3.0
[INFO] [stderr]     Checking tracing-log v0.1.1
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]    Compiling darling_core v0.10.3
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling gumdrop_derive v0.7.0
[INFO] [stderr]    Compiling darling_macro v0.10.3
[INFO] [stderr]     Checking gumdrop v0.7.0
[INFO] [stderr]     Checking tracing v0.1.22
[INFO] [stderr]    Compiling darling v0.10.3
[INFO] [stderr]    Compiling abscissa_derive v0.5.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking secrecy v0.6.0
[INFO] [stderr]     Checking tracing-subscriber v0.1.6
[INFO] [stderr]     Checking abscissa_core v0.5.2
[INFO] [stderr]     Checking abscissa_tokio v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.23s
[INFO] running `Command { std: "docker" "inspect" "e54ccd11c36e83a467b12a126df37bac8f1e6e8a0f109d5b46b153ce4b03ee6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e54ccd11c36e83a467b12a126df37bac8f1e6e8a0f109d5b46b153ce4b03ee6a", kill_on_drop: false }`
[INFO] [stdout] e54ccd11c36e83a467b12a126df37bac8f1e6e8a0f109d5b46b153ce4b03ee6a