[INFO] cloning repository https://github.com/cobalt-org/cobalt.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cobalt-org/cobalt.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcobalt-org%2Fcobalt.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcobalt-org%2Fcobalt.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3cc15c63075d7149db83551cdc5f9112ea90e89c
[INFO] checking cobalt-org/cobalt.rs against master#0dce3f606e05cffab7361c132a399d3550ab0df8 for pr-78376
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcobalt-org%2Fcobalt.rs" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cobalt-org/cobalt.rs on toolchain 0dce3f606e05cffab7361c132a399d3550ab0df8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cobalt-org/cobalt.rs
[INFO] finished tweaking git repo https://github.com/cobalt-org/cobalt.rs
[INFO] tweaked toml for git repo https://github.com/cobalt-org/cobalt.rs written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/cobalt-org/cobalt.rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c0041d59d8e1a551f6c60a0e999bf9f6263e8b329f883633210bc57da6395b47
[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" "c0041d59d8e1a551f6c60a0e999bf9f6263e8b329f883633210bc57da6395b47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0041d59d8e1a551f6c60a0e999bf9f6263e8b329f883633210bc57da6395b47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0041d59d8e1a551f6c60a0e999bf9f6263e8b329f883633210bc57da6395b47", kill_on_drop: false }`
[INFO] [stdout] c0041d59d8e1a551f6c60a0e999bf9f6263e8b329f883633210bc57da6395b47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1588bf4c5c6f3cb1062574cd9a84ad2a1c30d4e44bf617af086f6769ef9ee5c9
[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" "1588bf4c5c6f3cb1062574cd9a84ad2a1c30d4e44bf617af086f6769ef9ee5c9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling serde_json v1.0.58
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking bit-vec v0.6.2
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]     Checking deunicode v1.1.1
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking chunked_transfer v1.2.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]     Checking encoding_rs v0.8.23
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking walkdir v0.1.8
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling hashbrown v0.8.1
[INFO] [stderr]    Compiling indexmap v1.5.0
[INFO] [stderr]     Checking ghp v0.1.2
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking filetime v0.2.12
[INFO] [stderr]     Checking flate2 v1.0.16
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]    Compiling proc-quote-impl v0.3.2
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling sass-sys v0.4.21
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking quick-xml v0.17.2
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking globset v0.4.5
[INFO] [stderr]     Checking fancy-regex v0.3.5
[INFO] [stderr]     Checking predicates v1.0.5
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking notify v4.0.15
[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-1.0.36/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=ca6ec9e2d81bfbe7 -C extra-filename=-ca6ec9e2d81bfbe7 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-cf6fe1cad81ca6ef.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-93aded557d4a3ad7.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-083414e3434d8e82.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" "1588bf4c5c6f3cb1062574cd9a84ad2a1c30d4e44bf617af086f6769ef9ee5c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1588bf4c5c6f3cb1062574cd9a84ad2a1c30d4e44bf617af086f6769ef9ee5c9", kill_on_drop: false }`
[INFO] [stdout] 1588bf4c5c6f3cb1062574cd9a84ad2a1c30d4e44bf617af086f6769ef9ee5c9