[INFO] crate cobalt-bin 0.15.6 is already in cache
[INFO] checking cobalt-bin-0.15.6 against master#0cbcb17d3306d6e22eafc2c05ce885db97d0189c for pr-68746
[INFO] extracting crate cobalt-bin 0.15.6 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate cobalt-bin 0.15.6 on toolchain 0cbcb17d3306d6e22eafc2c05ce885db97d0189c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate cobalt-bin 0.15.6
[INFO] finished tweaking crates.io crate cobalt-bin 0.15.6
[INFO] tweaked toml for crates.io crate cobalt-bin 0.15.6 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate cobalt-bin 0.15.6 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 92b7220ec8192deb602c9f8ae76faafe26e45d042d6ca892abd390b36ec729ec
[INFO] running `"docker" "start" "-a" "92b7220ec8192deb602c9f8ae76faafe26e45d042d6ca892abd390b36ec729ec"`
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling liquid-error v0.19.0
[INFO] [stderr]    Compiling anymap v0.12.1
[INFO] [stderr]    Compiling derive_builder v0.7.2
[INFO] [stderr]    Compiling pulldown-cmark v0.6.1
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]    Compiling escargot v0.4.0
[INFO] [stderr]     Checking deunicode v1.0.0
[INFO] [stderr]     Checking normalize-line-endings v0.2.2
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling bincode v1.2.0
[INFO] [stderr]    Compiling onig_sys v69.1.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking socket2 v0.3.11
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking filetime v0.2.8
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling num_cpus v1.11.1
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]     Checking backtrace-sys v0.1.32
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking inotify v0.6.1
[INFO] [stderr]     Checking signal-hook v0.1.12
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking walkdir v0.1.8
[INFO] [stderr]    Compiling sass-sys v0.4.15
[INFO] [stderr]     Checking http v0.1.20
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling darling_core v0.9.0
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking ghp v0.1.2
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking notify v4.0.14
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr] error: could not compile `syn`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.8/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=5491dc452d4e524e -C extra-filename=-5491dc452d4e524e --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-77a1c769fbb752cb.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-c5a88d58e34051e1.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-0c54b0a5dd7239b0.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `regex`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name regex /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-1.3.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 --cfg 'feature="aho-corasick"' --cfg 'feature="default"' --cfg 'feature="memchr"' --cfg 'feature="perf"' --cfg 'feature="perf-cache"' --cfg 'feature="perf-dfa"' --cfg 'feature="perf-inline"' --cfg 'feature="perf-literal"' --cfg 'feature="std"' --cfg 'feature="thread_local"' --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=1c94f36feef463f5 -C extra-filename=-1c94f36feef463f5 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern aho_corasick=/opt/rustwide/target/debug/deps/libaho_corasick-15d88a80024c373f.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-0ed3661f94983b80.rmeta --extern regex_syntax=/opt/rustwide/target/debug/deps/libregex_syntax-254edcf94879ca28.rmeta --extern thread_local=/opt/rustwide/target/debug/deps/libthread_local-bda0fdcd04f927de.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `darling_core`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name darling_core /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/darling_core-0.9.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 --cfg 'feature="strsim"' --cfg 'feature="suggestions"' -C metadata=e8151f6d41b3602a -C extra-filename=-e8151f6d41b3602a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern fnv=/opt/rustwide/target/debug/deps/libfnv-20172a30b54128df.rmeta --extern ident_case=/opt/rustwide/target/debug/deps/libident_case-e51e7dea608efef8.rmeta --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-ec902278c6211ffe.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-1f7ad41ecbd199b5.rmeta --extern strsim=/opt/rustwide/target/debug/deps/libstrsim-954b82daa8c4449b.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-15465f721e4cd83a.rmeta --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 `"docker" "inspect" "92b7220ec8192deb602c9f8ae76faafe26e45d042d6ca892abd390b36ec729ec"`
[INFO] running `"docker" "rm" "-f" "92b7220ec8192deb602c9f8ae76faafe26e45d042d6ca892abd390b36ec729ec"`
[INFO] [stdout] 92b7220ec8192deb602c9f8ae76faafe26e45d042d6ca892abd390b36ec729ec