[INFO] updating cached repository https://github.com/huin/charsheet-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3d7e9af1ff942b3723528d3dca6c5df0324e2a95
[INFO] checking huin/charsheet-rs against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuin%2Fcharsheet-rs" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/huin/charsheet-rs on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/huin/charsheet-rs
[INFO] finished tweaking git repo https://github.com/huin/charsheet-rs
[INFO] tweaked toml for git repo https://github.com/huin/charsheet-rs written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/huin/charsheet-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-8/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] 04faffe8a9b316eef94dfaa167f2073cd4e3c1fff57c7ff3b4cd68331e8709de
[INFO] running `"docker" "start" "-a" "04faffe8a9b316eef94dfaa167f2073cd4e3c1fff57c7ff3b4cd68331e8709de"`
[INFO] [stderr]    Compiling bitflags v0.8.2
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling syntex_pos v0.54.0
[INFO] [stderr]    Compiling syntex_pos v0.58.1
[INFO] [stderr]    Compiling syn v0.10.8
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]    Compiling syntex_errors v0.54.0
[INFO] [stderr]    Compiling syntex_errors v0.58.1
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]    Compiling syntex_syntax v0.54.0
[INFO] [stderr]    Compiling syntex_syntax v0.58.1
[INFO] [stderr]    Compiling serde_codegen_internals v0.11.3
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking serde v0.6.15
[INFO] [stderr]     Checking serde_json v0.6.1
[INFO] [stderr]    Compiling syntex v0.58.1
[INFO] [stderr]    Compiling syntex v0.54.0
[INFO] [stderr]    Compiling serde_codegen v0.9.0
[INFO] [stderr] error: could not compile `syntex_syntax`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syntex_syntax /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syntex_syntax-0.58.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 -C metadata=3b2e16db95d3df28 -C extra-filename=-3b2e16db95d3df28 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-b94acde79fab57ef.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-bf00ce7e1a58d058.rmeta --extern rustc_serialize=/opt/rustwide/target/debug/deps/librustc_serialize-263c877c4c0e83ae.rmeta --extern syntex_errors=/opt/rustwide/target/debug/deps/libsyntex_errors-cdb00dd17d68696f.rmeta --extern syntex_pos=/opt/rustwide/target/debug/deps/libsyntex_pos-9dad9c27c5ba26ae.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-6cdbfcdb4c3f2220.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" "04faffe8a9b316eef94dfaa167f2073cd4e3c1fff57c7ff3b4cd68331e8709de"`
[INFO] running `"docker" "rm" "-f" "04faffe8a9b316eef94dfaa167f2073cd4e3c1fff57c7ff3b4cd68331e8709de"`
[INFO] [stdout] 04faffe8a9b316eef94dfaa167f2073cd4e3c1fff57c7ff3b4cd68331e8709de