[INFO] fetching crate pca9956b 0.1.3...
[INFO] checking pca9956b-0.1.3 against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] extracting crate pca9956b 0.1.3 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate pca9956b 0.1.3 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 pca9956b 0.1.3
[INFO] finished tweaking crates.io crate pca9956b 0.1.3
[INFO] tweaked toml for crates.io crate pca9956b 0.1.3 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate pca9956b 0.1.3 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tiny_http v0.6.2
[INFO] [stderr]   Downloaded chunked_transfer v0.3.1
[INFO] [stderr]   Downloaded nickel v0.11.0
[INFO] [stderr]   Downloaded pnet_transport v0.26.0
[INFO] [stderr]   Downloaded pnet v0.26.0
[INFO] [stderr]   Downloaded pnet_macros v0.26.0
[INFO] [stderr]   Downloaded pnet_datalink v0.26.0
[INFO] [stderr]   Downloaded cargo_metadata v0.6.4
[INFO] [stderr]   Downloaded pnet_base v0.26.0
[INFO] [stderr]   Downloaded pnet_packet v0.26.0
[INFO] [stderr]   Downloaded static_assertions v0.3.4
[INFO] [stderr]   Downloaded pnet_macros_support v0.26.0
[INFO] [stderr]   Downloaded httpd-util v0.1.6
[INFO] [stderr]   Downloaded groupable v0.2.0
[INFO] [stderr]   Downloaded pnet_sys v0.26.0
[INFO] [stderr]   Downloaded skeptic v0.13.4
[INFO] [stderr]   Downloaded ascii v0.8.7
[INFO] [stderr]   Downloaded pulldown-cmark v0.2.0
[INFO] [stderr]   Downloaded mustache v0.9.0
[INFO] [stderr]   Downloaded serde_derive v1.0.111
[INFO] [stderr]   Downloaded serde v1.0.111
[INFO] [stderr]   Downloaded crossbeam-queue v0.2.2
[INFO] [stderr]   Downloaded signal-hook v0.1.15
[INFO] [stderr]   Downloaded bytecount v0.4.0
[INFO] [stderr]   Downloaded syn v1.0.30
[INFO] [stderr]   Downloaded pca9956b-api v0.1.2
[INFO] [stderr]   Downloaded i2cdev2 v0.4.0
[INFO] [stderr]   Downloaded i2cbus-api v0.1.9
[INFO] [stderr]   Downloaded serde_ignored v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 76e75e0a0a596577f360d82f777bcda76cf3174711c93b7b82dde6cc38cbc788
[INFO] running `Command { std: "docker" "start" "-a" "76e75e0a0a596577f360d82f777bcda76cf3174711c93b7b82dde6cc38cbc788", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76e75e0a0a596577f360d82f777bcda76cf3174711c93b7b82dde6cc38cbc788", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76e75e0a0a596577f360d82f777bcda76cf3174711c93b7b82dde6cc38cbc788", kill_on_drop: false }`
[INFO] [stdout] 76e75e0a0a596577f360d82f777bcda76cf3174711c93b7b82dde6cc38cbc788
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 515641084a1b9f1afc3b26155750d29ce15b2f7f7f33d8df52cadb1083931968
[INFO] running `Command { std: "docker" "start" "-a" "515641084a1b9f1afc3b26155750d29ce15b2f7f7f33d8df52cadb1083931968", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking futures v0.1.29
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling gimli v0.21.0
[INFO] [stderr]    Compiling object v0.19.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]     Checking pnet_base v0.26.0
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]    Compiling hyper-openssl v0.7.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling bytecount v0.4.0
[INFO] [stderr]     Checking antidote v1.0.0
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]    Compiling nix v0.11.1
[INFO] [stderr]     Checking arc-swap v0.4.6
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]    Compiling pnet v0.26.0
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking groupable v0.2.0
[INFO] [stderr]     Checking ascii v0.8.7
[INFO] [stderr]     Checking chunked_transfer v0.3.1
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking dtoa v0.4.5
[INFO] [stderr]     Checking static_assertions v0.3.4
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking linked_hash_set v0.1.3
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[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-0.6.18/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="unicode"' --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=dc17503f11bd0b3d -C extra-filename=-dc17503f11bd0b3d --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" "515641084a1b9f1afc3b26155750d29ce15b2f7f7f33d8df52cadb1083931968", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "515641084a1b9f1afc3b26155750d29ce15b2f7f7f33d8df52cadb1083931968", kill_on_drop: false }`
[INFO] [stdout] 515641084a1b9f1afc3b26155750d29ce15b2f7f7f33d8df52cadb1083931968