[INFO] fetching crate procspawn 0.10.0...
[INFO] testing procspawn-0.10.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate procspawn 0.10.0 into /workspace/builds/worker-108/source
[INFO] validating manifest of crates.io crate procspawn 0.10.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate procspawn 0.10.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate procspawn 0.10.0
[INFO] tweaked toml for crates.io crate procspawn 0.10.0 written to /workspace/builds/worker-108/source/Cargo.toml
[INFO] crate crates.io crate procspawn 0.10.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] af4bfe078db99142f2bb2951a1c24526000060f2444cc8922f89bbe2a23aacb5
[INFO] running `Command { std: "docker" "start" "-a" "af4bfe078db99142f2bb2951a1c24526000060f2444cc8922f89bbe2a23aacb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af4bfe078db99142f2bb2951a1c24526000060f2444cc8922f89bbe2a23aacb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af4bfe078db99142f2bb2951a1c24526000060f2444cc8922f89bbe2a23aacb5", kill_on_drop: false }`
[INFO] [stdout] af4bfe078db99142f2bb2951a1c24526000060f2444cc8922f89bbe2a23aacb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dcfd58aae1c46df48e73d238d8fe79363649f032e3637b4e98bb1c1d23c73c18
[INFO] running `Command { std: "docker" "start" "-a" "dcfd58aae1c46df48e73d238d8fe79363649f032e3637b4e98bb1c1d23c73c18", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling slab v0.4.3
[INFO] [stderr]    Compiling gimli v0.24.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.19
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling object v0.25.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling findshlibs v0.8.0
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling addr2line v0.15.2
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling ipc-channel v0.15.0
[INFO] [stderr]    Compiling procspawn v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.67s
[INFO] running `Command { std: "docker" "inspect" "dcfd58aae1c46df48e73d238d8fe79363649f032e3637b4e98bb1c1d23c73c18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcfd58aae1c46df48e73d238d8fe79363649f032e3637b4e98bb1c1d23c73c18", kill_on_drop: false }`
[INFO] [stdout] dcfd58aae1c46df48e73d238d8fe79363649f032e3637b4e98bb1c1d23c73c18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da7ca84a8d5d86fd20c6b3dec86ede00a370bd6397c61ac6a6e89483e5a8dcb3
[INFO] running `Command { std: "docker" "start" "-a" "da7ca84a8d5d86fd20c6b3dec86ede00a370bd6397c61ac6a6e89483e5a8dcb3", kill_on_drop: false }`
[INFO] [stderr]    Compiling procspawn v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `procspawn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name custom_serialization --edition=2018 examples/custom-serialization.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="backtrace"' --cfg 'feature="default"' --cfg 'feature="findshlibs"' --cfg 'feature="safe-shared-libraries"' -C metadata=8c2e5bb207b4d9e4 -C extra-filename=-8c2e5bb207b4d9e4 --out-dir /opt/rustwide/target/debug/examples -L dependency=/opt/rustwide/target/debug/deps --extern backtrace=/opt/rustwide/target/debug/deps/libbacktrace-e57b86f00965b68e.rlib --extern findshlibs=/opt/rustwide/target/debug/deps/libfindshlibs-3a1aed507a20bbcf.rlib --extern ipc_channel=/opt/rustwide/target/debug/deps/libipc_channel-2f0011c5f8b75a7e.rlib --extern libc=/opt/rustwide/target/debug/deps/liblibc-44ea2d13e4d2213a.rlib --extern procspawn=/opt/rustwide/target/debug/deps/libprocspawn-2c4b1a08e2c41252.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-10df2e27a96ea178.rlib --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" "da7ca84a8d5d86fd20c6b3dec86ede00a370bd6397c61ac6a6e89483e5a8dcb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da7ca84a8d5d86fd20c6b3dec86ede00a370bd6397c61ac6a6e89483e5a8dcb3", kill_on_drop: false }`
[INFO] [stdout] da7ca84a8d5d86fd20c6b3dec86ede00a370bd6397c61ac6a6e89483e5a8dcb3