[INFO] fetching crate teatree 0.0.4...
[INFO] checking teatree-0.0.4 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate teatree 0.0.4 into /workspace/builds/worker-26/source
[INFO] validating manifest of crates.io crate teatree 0.0.4 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate teatree 0.0.4
[INFO] finished tweaking crates.io crate teatree 0.0.4
[INFO] tweaked toml for crates.io crate teatree 0.0.4 written to /workspace/builds/worker-26/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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 historian v4.0.4
[INFO] [stderr]   Downloaded sha3 v0.7.3
[INFO] [stderr]   Downloaded jsonrpc-parse v0.1.2
[INFO] [stderr]   Downloaded pagecache v0.17.0
[INFO] [stderr]   Downloaded sled v0.24.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 57f50c9409cad6a0a4bbbebb88eefa3b7c25a2dd3dbe7f8bd4bf7a5cea77f690
[INFO] running `Command { std: "docker" "start" "-a" "57f50c9409cad6a0a4bbbebb88eefa3b7c25a2dd3dbe7f8bd4bf7a5cea77f690", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57f50c9409cad6a0a4bbbebb88eefa3b7c25a2dd3dbe7f8bd4bf7a5cea77f690", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57f50c9409cad6a0a4bbbebb88eefa3b7c25a2dd3dbe7f8bd4bf7a5cea77f690", kill_on_drop: false }`
[INFO] [stdout] 57f50c9409cad6a0a4bbbebb88eefa3b7c25a2dd3dbe7f8bd4bf7a5cea77f690
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7df1d3e8aefedb9c2b3f39562813322f4d4d5feb72c5bf0572996524a83b0dd8
[INFO] running `Command { std: "docker" "start" "-a" "7df1d3e8aefedb9c2b3f39562813322f4d4d5feb72c5bf0572996524a83b0dd8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]     Checking gimli v0.25.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking copyless v0.1.5
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking historian v4.0.4
[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling hashbrown v0.6.3
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]     Checking encoding_rs v0.8.28
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking generic-array v0.9.1
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking lock_api v0.2.0
[INFO] [stderr]     Checking crossbeam-utils v0.7.2
[INFO] [stderr]     Checking crossbeam-utils v0.8.5
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]     Checking digest v0.7.6
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling parking_lot_core v0.5.0
[INFO] [stderr]    Compiling parking_lot v0.8.0
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking sha3 v0.7.3
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking url v2.2.2
[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 --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-syntax-0.6.25/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=c25dc19d7487cdf7 -C extra-filename=-c25dc19d7487cdf7 --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" "7df1d3e8aefedb9c2b3f39562813322f4d4d5feb72c5bf0572996524a83b0dd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7df1d3e8aefedb9c2b3f39562813322f4d4d5feb72c5bf0572996524a83b0dd8", kill_on_drop: false }`
[INFO] [stdout] 7df1d3e8aefedb9c2b3f39562813322f4d4d5feb72c5bf0572996524a83b0dd8