[INFO] fetching crate async-task 4.3.0...
[INFO] checking async-task-4.3.0 against master#0d56e340472882fa673d4b98d0802b9a799879d0 for pr-101692
[INFO] extracting crate async-task 4.3.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate async-task 4.3.0 on toolchain 0d56e340472882fa673d4b98d0802b9a799879d0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d56e340472882fa673d4b98d0802b9a799879d0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-task 4.3.0
[INFO] finished tweaking crates.io crate async-task 4.3.0
[INFO] tweaked toml for crates.io crate async-task 4.3.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate async-task 4.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d56e340472882fa673d4b98d0802b9a799879d0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded polling v2.2.0
[INFO] [stderr]   Downloaded async-task v4.2.0
[INFO] [stderr]   Downloaded async-lock v2.5.0
[INFO] [stderr]   Downloaded async-fs v1.5.0
[INFO] [stderr]   Downloaded async-net v1.6.1
[INFO] [stderr]   Downloaded flume v0.10.13
[INFO] [stderr]   Downloaded quote v1.0.20
[INFO] [stderr]   Downloaded spin v0.9.3
[INFO] [stderr]   Downloaded unicode-ident v1.0.1
[INFO] [stderr]   Downloaded smol v1.2.5
[INFO] [stderr]   Downloaded async-io v1.7.0
[INFO] [stderr]   Downloaded easy-parallel v3.2.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.40
[INFO] [stderr]   Downloaded blocking v1.2.0
[INFO] [stderr]   Downloaded once_cell v1.12.0
[INFO] [stderr]   Downloaded async-process v1.4.0
[INFO] [stderr]   Downloaded flaky_test v0.1.0
[INFO] [stderr]   Downloaded cache-padded v1.2.0
[INFO] [stderr]   Downloaded syn v1.0.98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+0d56e340472882fa673d4b98d0802b9a799879d0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd6a32c73cadd420ca9a1dfd0bbbbba98018f7824f2eb67435664c763adfa401
[INFO] running `Command { std: "docker" "start" "-a" "dd6a32c73cadd420ca9a1dfd0bbbbba98018f7824f2eb67435664c763adfa401", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd6a32c73cadd420ca9a1dfd0bbbbba98018f7824f2eb67435664c763adfa401", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd6a32c73cadd420ca9a1dfd0bbbbba98018f7824f2eb67435664c763adfa401", kill_on_drop: false }`
[INFO] [stdout] dd6a32c73cadd420ca9a1dfd0bbbbba98018f7824f2eb67435664c763adfa401
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+0d56e340472882fa673d4b98d0802b9a799879d0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54c7f7de56cb3761d3f1a32a3ce81e6f3d8f00134de2878a3ba37a2807d20aef
[INFO] running `Command { std: "docker" "start" "-a" "54c7f7de56cb3761d3f1a32a3ce81e6f3d8f00134de2878a3ba37a2807d20aef", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking cache-padded v1.2.0
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking event-listener v2.5.2
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking async-task v4.2.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling signal-hook v0.3.14
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]     Checking easy-parallel v3.2.0
[INFO] [stderr]     Checking async-task v4.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking async-lock v2.5.0
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking spin v0.9.3
[INFO] [stderr]     Checking polling v2.2.0
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking flume v0.10.13
[INFO] [stderr]     Checking blocking v1.2.0
[INFO] [stderr]     Checking async-io v1.7.0
[INFO] [stderr]     Checking async-executor v1.4.1
[INFO] [stderr]     Checking async-fs v1.5.0
[INFO] [stderr]     Checking async-process v1.4.0
[INFO] [stderr]     Checking async-net v1.6.1
[INFO] [stderr]     Checking smol v1.2.5
[INFO] [stderr]    Compiling flaky_test v0.1.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.63s
[INFO] running `Command { std: "docker" "inspect" "54c7f7de56cb3761d3f1a32a3ce81e6f3d8f00134de2878a3ba37a2807d20aef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54c7f7de56cb3761d3f1a32a3ce81e6f3d8f00134de2878a3ba37a2807d20aef", kill_on_drop: false }`
[INFO] [stdout] 54c7f7de56cb3761d3f1a32a3ce81e6f3d8f00134de2878a3ba37a2807d20aef