[INFO] fetching crate multitask 0.2.0...
[INFO] checking multitask-0.2.0 against try#24cd45d7714ba43afd4b8e62fb677b069b21c4a5 for pr-129543
[INFO] extracting crate multitask 0.2.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate multitask 0.2.0 on toolchain 24cd45d7714ba43afd4b8e62fb677b069b21c4a5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate multitask 0.2.0
[INFO] finished tweaking crates.io crate multitask 0.2.0
[INFO] tweaked toml for crates.io crate multitask 0.2.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 35 packages to latest compatible versions
[INFO] [stderr]       Adding async-channel v1.9.0 (latest: v2.3.1)
[INFO] [stderr]       Adding async-io v0.1.11 (latest: v2.3.4)
[INFO] [stderr]       Adding async-task v3.0.0 (latest: v4.7.1)
[INFO] [stderr]       Adding blocking v0.4.7 (latest: v1.6.1)
[INFO] [stderr]       Adding cfg-if v0.1.10 (latest: v1.0.0)
[INFO] [stderr]       Adding concurrent-queue v1.2.4 (latest: v2.5.0)
[INFO] [stderr]       Adding event-listener v2.5.3 (latest: v5.3.1)
[INFO] [stderr]       Adding fastrand v1.9.0 (latest: v2.1.1)
[INFO] [stderr]       Adding futures-lite v0.1.11 (latest: v2.3.0)
[INFO] [stderr]       Adding parking v1.0.6 (latest: v2.2.0)
[INFO] [stderr]       Adding pin-project-lite v0.1.12 (latest: v0.2.14)
[INFO] [stderr]       Adding polling v0.1.9 (latest: v3.7.3)
[INFO] [stderr]       Adding socket2 v0.3.19 (latest: v0.5.7)
[INFO] [stderr]       Adding vec-arena v0.5.2 (latest: v1.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 242add9784065859a795bf43f675b1a2a803a85340d3406400b043cbcc1981e7
[INFO] running `Command { std: "docker" "start" "-a" "242add9784065859a795bf43f675b1a2a803a85340d3406400b043cbcc1981e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "242add9784065859a795bf43f675b1a2a803a85340d3406400b043cbcc1981e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "242add9784065859a795bf43f675b1a2a803a85340d3406400b043cbcc1981e7", kill_on_drop: false }`
[INFO] [stdout] 242add9784065859a795bf43f675b1a2a803a85340d3406400b043cbcc1981e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ec53fc5bac1206e4e9b5762cc10c8a71a6d1f74d7ce157e3fdd19095b2eeaa7
[INFO] running `Command { std: "docker" "start" "-a" "7ec53fc5bac1206e4e9b5762cc10c8a71a6d1f74d7ce157e3fdd19095b2eeaa7", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking cache-padded v1.3.0
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking waker-fn v1.2.0
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking parking v1.0.6
[INFO] [stderr]     Checking vec-arena v0.5.2
[INFO] [stderr]     Checking async-task v3.0.0
[INFO] [stderr]     Checking atomic-waker v1.1.2
[INFO] [stderr]     Checking concurrent-queue v1.2.4
[INFO] [stderr]     Checking multitask v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicBool::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/lib.rs:291:14
[INFO] [stdout]     |
[INFO] [stdout] 291 |             .compare_and_swap(false, true, Ordering::SeqCst)
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking concurrent-queue v2.5.0
[INFO] [stderr]     Checking futures-lite v0.1.11
[INFO] [stderr]     Checking async-channel v1.9.0
[INFO] [stderr]     Checking polling v0.1.9
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking blocking v0.4.7
[INFO] [stderr]     Checking async-io v0.1.11
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicBool::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/lib.rs:291:14
[INFO] [stdout]     |
[INFO] [stdout] 291 |             .compare_and_swap(false, true, Ordering::SeqCst)
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.80s
[INFO] running `Command { std: "docker" "inspect" "7ec53fc5bac1206e4e9b5762cc10c8a71a6d1f74d7ce157e3fdd19095b2eeaa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ec53fc5bac1206e4e9b5762cc10c8a71a6d1f74d7ce157e3fdd19095b2eeaa7", kill_on_drop: false }`
[INFO] [stdout] 7ec53fc5bac1206e4e9b5762cc10c8a71a6d1f74d7ce157e3fdd19095b2eeaa7