[INFO] updating cached repository https://github.com/micthiesen/project-purple
[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] 01f6f3e4ba3e097c701fb72d5e2511b52b2eedba
[INFO] checking micthiesen/project-purple against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmicthiesen%2Fproject-purple" "/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/micthiesen/project-purple on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/micthiesen/project-purple
[INFO] finished tweaking git repo https://github.com/micthiesen/project-purple
[INFO] tweaked toml for git repo https://github.com/micthiesen/project-purple written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/micthiesen/project-purple already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[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" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "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] 155cd50076114f7e44476a2a51a45cae494c2e76aedc4901a9c1952c26c1ec16
[INFO] running `"docker" "start" "-a" "155cd50076114f7e44476a2a51a45cae494c2e76aedc4901a9c1952c26c1ec16"`
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking tuple_utils v0.3.0
[INFO] [stderr]    Compiling unic-langid-impl v0.4.0
[INFO] [stderr]    Compiling winapi v0.3.7
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling hashbrown v0.6.0
[INFO] [stderr]    Compiling cmake v0.1.40
[INFO] [stderr]    Compiling minimp3-sys v0.3.1
[INFO] [stderr]     Checking hibitset v0.5.4
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]    Compiling err-derive v0.1.5
[INFO] [stderr]    Compiling lexical-core v0.4.3
[INFO] [stderr]    Compiling lexical v2.2.2
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking slice-deque v0.2.4
[INFO] [stderr]     Checking getrandom v0.1.7
[INFO] [stderr]     Checking memmap v0.6.2
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]    Compiling rustc_version_runtime v0.1.5
[INFO] [stderr]    Compiling xcb v0.8.2
[INFO] [stderr]     Checking backtrace-sys v0.1.31
[INFO] [stderr]     Checking x11-dl v2.18.3
[INFO] [stderr]     Checking x11 v2.18.1
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking alsa-sys v0.1.2
[INFO] [stderr]     Checking ash v0.29.0
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]    Compiling backtrace v0.3.34
[INFO] [stderr]    Compiling glsl-layout-derive v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.98
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling derivative v1.0.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.8
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling shred-derive v0.6.1
[INFO] [stderr]    Compiling specs-derive v0.4.0
[INFO] [stderr]    Compiling getset v0.0.7
[INFO] [stderr]    Compiling proc_macro_roids v0.4.0
[INFO] [stderr]    Compiling inventory-impl v0.1.3
[INFO] [stderr]    Compiling ctor v0.1.9
[INFO] [stderr]    Compiling ghost v0.1.0
[INFO] [stderr] error: could not compile `nix`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name nix /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nix-0.14.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C debuginfo=2 -C metadata=6e7a932bd4d32b04 -C extra-filename=-6e7a932bd4d32b04 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-a896809a18b5c847.rmeta --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-3c993234c925fa7b.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-df7e8d90f6684b0a.rmeta --extern void=/opt/rustwide/target/debug/deps/libvoid-0662994d2105a725.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 `synstructure`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name synstructure /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/synstructure-0.10.2/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 -C metadata=3fb36b58b20d6de0 -C extra-filename=-3fb36b58b20d6de0 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-c700a91351243a0b.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-50bb22ad65c613f0.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-3c3e5ee57fa88126.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-fd0395677b5ee920.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" "155cd50076114f7e44476a2a51a45cae494c2e76aedc4901a9c1952c26c1ec16"`
[INFO] running `"docker" "rm" "-f" "155cd50076114f7e44476a2a51a45cae494c2e76aedc4901a9c1952c26c1ec16"`
[INFO] [stdout] 155cd50076114f7e44476a2a51a45cae494c2e76aedc4901a9c1952c26c1ec16