[INFO] fetching crate async_smux 0.2.1...
[INFO] checking async_smux-0.2.1 against master#0599f3403366d9c57f0625e6de3af214b5042a90 for pr-87710
[INFO] extracting crate async_smux 0.2.1 into /workspace/builds/worker-109/source
[INFO] validating manifest of crates.io crate async_smux 0.2.1 on toolchain 0599f3403366d9c57f0625e6de3af214b5042a90
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async_smux 0.2.1
[INFO] finished tweaking crates.io crate async_smux 0.2.1
[INFO] tweaked toml for crates.io crate async_smux 0.2.1 written to /workspace/builds/worker-109/source/Cargo.toml
[INFO] crate crates.io crate async_smux 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "fetch" "--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-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79765739cb3919c7d5c5a8bb151523b1b4079f33e3c3b9738282802b32d60684
[INFO] running `Command { std: "docker" "start" "-a" "79765739cb3919c7d5c5a8bb151523b1b4079f33e3c3b9738282802b32d60684", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79765739cb3919c7d5c5a8bb151523b1b4079f33e3c3b9738282802b32d60684", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79765739cb3919c7d5c5a8bb151523b1b4079f33e3c3b9738282802b32d60684", kill_on_drop: false }`
[INFO] [stdout] 79765739cb3919c7d5c5a8bb151523b1b4079f33e3c3b9738282802b32d60684
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3caf6fe24e308236a9fabc2fbc384e035a598c7e27fdb8ec5cb3547b51a4590f
[INFO] running `Command { std: "docker" "start" "-a" "3caf6fe24e308236a9fabc2fbc384e035a598c7e27fdb8ec5cb3547b51a4590f", 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] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]     Checking futures-core v0.3.6
[INFO] [stderr]     Checking futures-io v0.3.6
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking pin-project-lite v0.1.10
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling const_fn v0.4.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]     Checking async-task v4.0.2
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]     Checking futures-sink v0.3.6
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]     Checking bytemuck v1.4.1
[INFO] [stderr]     Checking regex-syntax v0.6.20
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling pprof v0.3.18
[INFO] [stderr]     Checking half v1.6.0
[INFO] [stderr]     Checking str_stack v0.1.0
[INFO] [stderr]     Checking oorandom v11.1.2
[INFO] [stderr]     Checking humantime v2.0.1
[INFO] [stderr]     Checking bytes v0.6.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking instant v0.1.7
[INFO] [stderr]     Checking async-lock v2.3.0
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking async-mutex v1.4.0
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking aho-corasick v0.7.14
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking quick-xml v0.19.0
[INFO] [stderr]     Checking futures-task v0.3.6
[INFO] [stderr]     Checking async-channel v1.5.1
[INFO] [stderr]     Checking futures-channel v0.3.6
[INFO] [stderr]     Checking futures-lite v1.11.1
[INFO] [stderr] error: could not compile `proc-macro-hack`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name proc_macro_hack --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro-hack-0.5.18/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debuginfo=2 -C metadata=184a50e690aa0c30 -C extra-filename=-184a50e690aa0c30 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "3caf6fe24e308236a9fabc2fbc384e035a598c7e27fdb8ec5cb3547b51a4590f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3caf6fe24e308236a9fabc2fbc384e035a598c7e27fdb8ec5cb3547b51a4590f", kill_on_drop: false }`
[INFO] [stdout] 3caf6fe24e308236a9fabc2fbc384e035a598c7e27fdb8ec5cb3547b51a4590f