[INFO] updating cached repository https://github.com/knack-supply/curve-tracer
[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] 3e46871a1d8d5bc09db443c4d7522a75f93c262b
[INFO] checking knack-supply/curve-tracer against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fknack-supply%2Fcurve-tracer" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/knack-supply/curve-tracer on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/knack-supply/curve-tracer
[INFO] finished tweaking git repo https://github.com/knack-supply/curve-tracer
[INFO] tweaked toml for git repo https://github.com/knack-supply/curve-tracer written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/knack-supply/curve-tracer already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "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-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" "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" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "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] 67e329dec7fb9b97d06b27084e1982594a640eebbdf568d51b10a153d30bb4b3
[INFO] running `"docker" "start" "-a" "67e329dec7fb9b97d06b27084e1982594a640eebbdf568d51b10a153d30bb4b3"`
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking futures-task v0.3.4
[INFO] [stderr]    Compiling regex-syntax v0.6.14
[INFO] [stderr]    Compiling gio v0.8.1
[INFO] [stderr]    Compiling bindgen v0.47.3
[INFO] [stderr]    Compiling gdk-pixbuf v0.8.0
[INFO] [stderr]    Compiling cairo-rs v0.8.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling pango v0.8.0
[INFO] [stderr]    Compiling atk v0.8.0
[INFO] [stderr]    Compiling gdk v0.12.1
[INFO] [stderr]    Compiling gtk v0.8.1
[INFO] [stderr]    Compiling cargo-husky v1.5.0
[INFO] [stderr]    Compiling glib-sys v0.9.1
[INFO] [stderr]    Compiling gobject-sys v0.9.1
[INFO] [stderr]    Compiling gio-sys v0.9.1
[INFO] [stderr]    Compiling cairo-sys-rs v0.9.2
[INFO] [stderr]    Compiling pango-sys v0.9.1
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.9.1
[INFO] [stderr]    Compiling gdk-sys v0.9.1
[INFO] [stderr]    Compiling atk-sys v0.9.1
[INFO] [stderr]    Compiling gtk-sys v0.9.2
[INFO] [stderr]    Compiling clang-sys v0.26.4
[INFO] [stderr]     Checking proc-macro2 v0.4.30
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking measure_time v0.6.0
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking serde_json v1.0.46
[INFO] [stderr]     Checking autodiff v0.1.9
[INFO] [stderr]     Checking noisy_float v0.1.12
[INFO] [stderr]     Checking itertools-num v0.1.3
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling backtrace v0.3.43
[INFO] [stderr]     Checking num-rational v0.2.3
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking alga v0.9.2
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking aho-corasick v0.7.7
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]    Compiling hashbrown v0.1.8
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr]     Checking tinytemplate v1.0.3
[INFO] [stderr]     Checking criterion-plot v0.4.1
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking simplelog v0.7.4
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking nalgebra v0.19.0 (https://github.com/rustsim/nalgebra.git?rev=6c4545081e1cac02ce35098f760ce9fcfccac8cd#6c454508)
[INFO] [stderr]    Compiling winres v0.1.11
[INFO] [stderr]     Checking bstr v0.2.10
[INFO] [stderr] error: could not compile `regex-syntax`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name regex_syntax /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-syntax-0.6.14/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 --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=d9bb9a7844277054 -C extra-filename=-d9bb9a7844277054 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --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 `syn`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.15.44/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --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="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=5b4d86c08b5a958e -C extra-filename=-5b4d86c08b5a958e --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-4659720d566e043c.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-d1ea6d0b6e24efcd.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-ed8fa1d714a0dce2.rmeta --cap-lints allow --cap-lints=forbid --cfg syn_can_match_trailing_dollar --cfg syn_can_use_thread_id --cfg syn_can_use_associated_constants --cfg syn_can_call_macro_by_path` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "67e329dec7fb9b97d06b27084e1982594a640eebbdf568d51b10a153d30bb4b3"`
[INFO] running `"docker" "rm" "-f" "67e329dec7fb9b97d06b27084e1982594a640eebbdf568d51b10a153d30bb4b3"`
[INFO] [stdout] 67e329dec7fb9b97d06b27084e1982594a640eebbdf568d51b10a153d30bb4b3