[INFO] updating cached repository https://github.com/imsnif/what
[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] c9b9025577d0e1f831c9ebb054a5ac00b7a89796
[INFO] checking imsnif/what against try#662bf71cc5bbfe44a109ab5b7205e12ec319754c for pr-67531
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimsnif%2Fwhat" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/imsnif/what on toolchain 662bf71cc5bbfe44a109ab5b7205e12ec319754c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+662bf71cc5bbfe44a109ab5b7205e12ec319754c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/imsnif/what
[INFO] finished tweaking git repo https://github.com/imsnif/what
[INFO] tweaked toml for git repo https://github.com/imsnif/what written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/imsnif/what already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+662bf71cc5bbfe44a109ab5b7205e12ec319754c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+662bf71cc5bbfe44a109ab5b7205e12ec319754c" "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] 1c6639d4374819e0bc713c8a3ff9a3e36383d7b66247b4a2dbc124a4218e75bf
[INFO] running `"docker" "start" "-a" "1c6639d4374819e0bc713c8a3ff9a3e36383d7b66247b4a2dbc124a4218e75bf"`
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]     Checking pnet_base v0.23.0
[INFO] [stderr]    Compiling pnet v0.23.0
[INFO] [stderr]     Checking bytes v0.5.0
[INFO] [stderr]     Checking getrandom v0.1.13
[INFO] [stderr]     Checking pnet_sys v0.23.0
[INFO] [stderr]     Checking socket2 v0.3.11
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking libflate v0.1.27
[INFO] [stderr]     Checking tui v0.5.1
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking console v0.8.0
[INFO] [stderr]     Checking pnet_macros_support v0.23.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking procfs v0.7.4
[INFO] [stderr]     Checking tokio v0.2.2
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling pest_generator v2.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling enum-as-inner v0.3.0
[INFO] [stderr]    Compiling async-trait v0.1.21
[INFO] [stderr]    Compiling structopt-derive v0.3.4
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling syntex v0.42.2
[INFO] [stderr]    Compiling pnet_macros v0.21.0
[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-0.42.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 -C metadata=5a645c9cb8f8caaf -C extra-filename=-5a645c9cb8f8caaf --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-0e4e4bcbcc30c17e.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-bc279db8e4e59fbe.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-c11f13f91fe35249.rmeta --extern rustc_serialize=/opt/rustwide/target/debug/deps/librustc_serialize-ffb6f93613dfa3f7.rmeta --extern syntex_errors=/opt/rustwide/target/debug/deps/libsyntex_errors-90f45f62b8569322.rmeta --extern syntex_pos=/opt/rustwide/target/debug/deps/libsyntex_pos-8557549b2004246c.rmeta --extern term=/opt/rustwide/target/debug/deps/libterm-aec505172ec7c046.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-45c9b9e290f5b113.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 `async-trait`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --edition=2018 --crate-name async_trait /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/async-trait-0.1.21/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C debuginfo=2 -C metadata=362471d20a033bca -C extra-filename=-362471d20a033bca --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-6df5792153fcd692.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-096e2e35f10c1007.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-439d8122a6fc075c.rlib --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" "1c6639d4374819e0bc713c8a3ff9a3e36383d7b66247b4a2dbc124a4218e75bf"`
[INFO] running `"docker" "rm" "-f" "1c6639d4374819e0bc713c8a3ff9a3e36383d7b66247b4a2dbc124a4218e75bf"`
[INFO] [stdout] 1c6639d4374819e0bc713c8a3ff9a3e36383d7b66247b4a2dbc124a4218e75bf