[INFO] fetching crate qatrade-rs 0.4.0...
[INFO] checking qatrade-rs-0.4.0 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate qatrade-rs 0.4.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate qatrade-rs 0.4.0 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate qatrade-rs 0.4.0
[INFO] finished tweaking crates.io crate qatrade-rs 0.4.0
[INFO] tweaked toml for crates.io crate qatrade-rs 0.4.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate qatrade-rs 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded log-mdc v0.1.0
[INFO] [stderr]   Downloaded serde-value v0.6.0
[INFO] [stderr]   Downloaded tokio-tls v0.2.1
[INFO] [stderr]   Downloaded futures v0.1.30
[INFO] [stderr]   Downloaded log4rs v0.12.0
[INFO] [stderr]   Downloaded amiquip v0.3.3
[INFO] [stderr]   Downloaded serde_with_macros v1.2.2
[INFO] [stderr]   Downloaded flate2 v1.0.18
[INFO] [stderr]   Downloaded trust-dns-proto v0.19.5
[INFO] [stderr]   Downloaded futures v0.3.7
[INFO] [stderr]   Downloaded trust-dns-resolver v0.19.5
[INFO] [stderr]   Downloaded bson v0.14.1
[INFO] [stderr]   Downloaded websocket-base v0.26.2
[INFO] [stderr]   Downloaded serde_yaml v0.8.13
[INFO] [stderr]   Downloaded websocket v0.26.2
[INFO] [stderr]   Downloaded os_info v1.3.3
[INFO] [stderr]   Downloaded mongodb v0.9.2
[INFO] [stderr]   Downloaded serde_with v1.5.1
[INFO] [stderr]   Downloaded ordered-float v1.1.0
[INFO] [stderr]   Downloaded futures-executor v0.3.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd2039489ca443094b5aff9109387b20a7eb3d539c07b56d6e79fc8e4b04c188
[INFO] running `Command { std: "docker" "start" "-a" "cd2039489ca443094b5aff9109387b20a7eb3d539c07b56d6e79fc8e4b04c188", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd2039489ca443094b5aff9109387b20a7eb3d539c07b56d6e79fc8e4b04c188", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd2039489ca443094b5aff9109387b20a7eb3d539c07b56d6e79fc8e4b04c188", kill_on_drop: false }`
[INFO] [stdout] cd2039489ca443094b5aff9109387b20a7eb3d539c07b56d6e79fc8e4b04c188
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e4905b8485565c5fbb22f8e2a52a730ef695a719e553be780db9644d5be057c
[INFO] running `Command { std: "docker" "start" "-a" "1e4905b8485565c5fbb22f8e2a52a730ef695a719e553be780db9644d5be057c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]     Checking futures-io v0.3.7
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking tinyvec v0.3.4
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking pin-project-lite v0.1.11
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking futures v0.1.30
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking object v0.21.1
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]    Compiling rustversion v1.0.4
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]     Checking pin-project-lite v0.2.0
[INFO] [stderr]    Compiling const_fn v0.4.2
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling regex-syntax v0.6.20
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling cookie-factory v0.2.4
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking version_check v0.9.2
[INFO] [stderr]    Compiling os_info v1.3.3
[INFO] [stderr]     Checking copyless v0.1.5
[INFO] [stderr]     Checking md5 v0.6.1
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking dtoa v0.4.6
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]     Checking bufstream v0.1.4
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]     Checking futures-channel v0.3.7
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]     Checking instant v0.1.8
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking futures-task v0.3.7
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking async-channel v1.5.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking nb-connect v1.0.2
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking socket2 v0.3.15
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_pcg v0.1.2
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking resolv-conf v0.6.3
[INFO] [stderr]     Checking aho-corasick v0.7.14
[INFO] [stderr]     Checking futures-lite v1.11.3
[INFO] [stderr]     Checking nom v4.2.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]     Checking parking_lot v0.11.0
[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-0.6.20/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="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=286a87596ada052c -C extra-filename=-286a87596ada052c --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" "1e4905b8485565c5fbb22f8e2a52a730ef695a719e553be780db9644d5be057c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e4905b8485565c5fbb22f8e2a52a730ef695a719e553be780db9644d5be057c", kill_on_drop: false }`
[INFO] [stdout] 1e4905b8485565c5fbb22f8e2a52a730ef695a719e553be780db9644d5be057c