[INFO] fetching crate cobalt-bin 0.17.4...
[INFO] checking cobalt-bin-0.17.4 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate cobalt-bin 0.17.4 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate cobalt-bin 0.17.4 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cobalt-bin 0.17.4
[INFO] finished tweaking crates.io crate cobalt-bin 0.17.4
[INFO] tweaked toml for crates.io crate cobalt-bin 0.17.4 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate cobalt-bin 0.17.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f02df62a4a4486dd336b3f03b2a67d0641c9efcbcb9adcaef7fb127b26eb499b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f02df62a4a4486dd336b3f03b2a67d0641c9efcbcb9adcaef7fb127b26eb499b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f02df62a4a4486dd336b3f03b2a67d0641c9efcbcb9adcaef7fb127b26eb499b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f02df62a4a4486dd336b3f03b2a67d0641c9efcbcb9adcaef7fb127b26eb499b", kill_on_drop: false }`
[INFO] [stdout] f02df62a4a4486dd336b3f03b2a67d0641c9efcbcb9adcaef7fb127b26eb499b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0141dfb27c28ddec8339e80307f08460a0815a5e1c98cca90ad7aef829a24f2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f0141dfb27c28ddec8339e80307f08460a0815a5e1c98cca90ad7aef829a24f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]     Checking unicode-segmentation v1.8.0
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]     Checking ucd-trie v0.1.3
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]     Checking anymap2 v0.13.0
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]     Checking unicode-bidi v0.3.6
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking deunicode v1.3.1
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]     Checking slab v0.4.4
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]     Checking bytecount v0.6.2
[INFO] [stderr]     Checking numerals v0.1.4
[INFO] [stderr]     Checking utf8-width v0.1.5
[INFO] [stderr]     Checking macro-utils v0.1.3
[INFO] [stderr]     Checking predicates-core v1.0.2
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking pathdiff v0.2.0
[INFO] [stderr]     Checking cow-utils v0.1.2
[INFO] [stderr]     Checking ascii v1.0.0
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking html-escape v0.2.9
[INFO] [stderr]     Checking minifier v0.0.41
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling num-bigint v0.4.1
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking open v2.0.1
[INFO] [stderr]     Checking crc32fast v1.2.1
[INFO] [stderr]     Checking crossbeam-utils v0.8.5
[INFO] [stderr]     Checking predicates-tree v1.0.3
[INFO] [stderr]     Checking encoding_rs v0.8.28
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking bitvec v0.19.5
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking lexical-core v0.7.6
[INFO] [stderr]     Checking walkdir v0.1.8
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking similar v1.3.0
[INFO] [stderr]     Checking mime_guess v2.0.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking filetime v0.2.15
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking status v0.0.10
[INFO] [stderr]     Checking ghp v0.1.2
[INFO] [stderr]     Checking flate2 v1.0.21
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]    Compiling proc-quote-impl v0.3.2
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking dirs v3.0.2
[INFO] [stderr]     Checking console v0.14.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling sass-sys v0.4.22
[INFO] [stderr]     Checking shellexpand v2.1.0
[INFO] [stderr]     Checking globset v0.4.8
[INFO] [stderr]     Checking fancy-regex v0.7.1
[INFO] [stderr]     Checking stfu8 v0.2.4
[INFO] [stderr]     Checking quick-xml v0.20.0
[INFO] [stderr]     Checking predicates v2.0.2
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking ignore v0.4.18
[INFO] [stderr]     Checking voca_rs v1.13.1
[INFO] [stderr]     Checking similar-asserts v1.1.0
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking assert_cmd v2.0.0
[INFO] [stderr]     Checking notify v4.0.17
[INFO] [stderr]     Checking globwalk v0.8.1
[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-1.0.75/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="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=41ce18ac517f16e3 -C extra-filename=-41ce18ac517f16e3 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-a9e37e1a9d2dc9b7.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-cb31b58584e17ba0.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-3c8a88541efd8c80.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 `Command { std: "docker" "inspect" "f0141dfb27c28ddec8339e80307f08460a0815a5e1c98cca90ad7aef829a24f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0141dfb27c28ddec8339e80307f08460a0815a5e1c98cca90ad7aef829a24f2", kill_on_drop: false }`
[INFO] [stdout] f0141dfb27c28ddec8339e80307f08460a0815a5e1c98cca90ad7aef829a24f2