[INFO] crate block_kit 0.1.0 is already in cache
[INFO] checking block_kit-0.1.0 against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] extracting crate block_kit 0.1.0 into /workspace/builds/worker-91/source
[INFO] validating manifest of crates.io crate block_kit 0.1.0 on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate block_kit 0.1.0
[INFO] finished tweaking crates.io crate block_kit 0.1.0
[INFO] tweaked toml for crates.io crate block_kit 0.1.0 written to /workspace/builds/worker-91/source/Cargo.toml
[INFO] crate crates.io crate block_kit 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "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-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dee84631e1c26f2d6f235969cd4996cd9b4998a17c32edecd7809c23c3a01f6f
[INFO] running `Command { std: "docker" "start" "-a" "dee84631e1c26f2d6f235969cd4996cd9b4998a17c32edecd7809c23c3a01f6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dee84631e1c26f2d6f235969cd4996cd9b4998a17c32edecd7809c23c3a01f6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dee84631e1c26f2d6f235969cd4996cd9b4998a17c32edecd7809c23c3a01f6f", kill_on_drop: false }`
[INFO] [stdout] dee84631e1c26f2d6f235969cd4996cd9b4998a17c32edecd7809c23c3a01f6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7285eaa9af50f626eff762164498687bbd9e40d0ffcb630decf27a9ff07c8d9
[INFO] running `Command { std: "docker" "start" "-a" "f7285eaa9af50f626eff762164498687bbd9e40d0ffcb630decf27a9ff07c8d9", 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 v0.2.66
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking smallvec v1.0.0
[INFO] [stderr]     Checking futures-core v0.3.1
[INFO] [stderr]     Checking futures v0.1.29
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]     Checking futures-sink v0.3.1
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking bytes v0.5.3
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking arc-swap v0.4.4
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]     Checking futures-task v0.3.1
[INFO] [stderr]     Checking futures-io v0.3.1
[INFO] [stderr]     Checking pin-project-lite v0.1.1
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking copyless v0.1.4
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]    Compiling openssl v0.10.26
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling encoding_rs v0.8.20
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking dtoa v0.4.4
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.1
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking mime v0.3.14
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]     Checking hashbrown v0.3.1
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking alloc-stdlib v0.2.1
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking lock_api v0.3.2
[INFO] [stderr]     Checking lock_api v0.2.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking brotli-decompressor v2.3.0
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking futures-channel v0.3.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking bytestring v0.1.1
[INFO] [stderr]     Checking unicode-normalization v0.1.11
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr] error: could not compile `regex-syntax`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name regex_syntax /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-syntax-0.6.12/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' -C metadata=4055627397d2cec7 -C extra-filename=-4055627397d2cec7 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --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" "f7285eaa9af50f626eff762164498687bbd9e40d0ffcb630decf27a9ff07c8d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7285eaa9af50f626eff762164498687bbd9e40d0ffcb630decf27a9ff07c8d9", kill_on_drop: false }`
[INFO] [stdout] f7285eaa9af50f626eff762164498687bbd9e40d0ffcb630decf27a9ff07c8d9