[INFO] updating cached repository https://github.com/leesdolphin/rainbow_svg_mask
[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] d73a122fa6943c106e95e32a253fe9d7d0d88ff8
[INFO] checking leesdolphin/rainbow_svg_mask against nightly-2019-10-27 for pr-65897
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleesdolphin%2Frainbow_svg_mask" "/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/leesdolphin/rainbow_svg_mask on toolchain nightly-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+nightly-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/leesdolphin/rainbow_svg_mask
[INFO] finished tweaking git repo https://github.com/leesdolphin/rainbow_svg_mask
[INFO] tweaked toml for git repo https://github.com/leesdolphin/rainbow_svg_mask written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/leesdolphin/rainbow_svg_mask already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+nightly-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[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=allow" "-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" "+nightly-2019-10-27" "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] cfebe1f26ea288dc531649b35c3b25687c39755fad589715ab712e3bc413b43c
[INFO] running `"docker" "start" "-a" "cfebe1f26ea288dc531649b35c3b25687c39755fad589715ab712e3bc413b43c"`
[INFO] [stderr]     Checking simplecss v0.1.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.5
[INFO] [stderr]     Checking float-cmp v0.2.3
[INFO] [stderr]     Checking clap v2.20.0
[INFO] [stderr]     Checking svgparser v0.2.0 (https://github.com/RazrFalcon/libsvgparser.git#beb091c4)
[INFO] [stderr]     Checking svgparser v0.2.0
[INFO] [stderr]     Checking svgdom v0.3.0 (https://github.com/RazrFalcon/libsvgdom.git#f7a7da96)
[INFO] [stderr]     Checking backtrace v0.3.0
[INFO] [stderr]     Checking error-chain v0.8.1
[INFO] [stderr]     Checking svgcleaner v0.8.0 (https://github.com/RazrFalcon/svgcleaner.git#8d6bf389)
[INFO] [stderr]     Checking rainbow_svg_mask v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0565]: literal in `cfg` predicate value must be a string
[INFO] [stderr]  --> src/lib.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![cfg(doc=false)]
[INFO] [stderr]   |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0565]: literal in `cfg` predicate value must be a string
[INFO] [stderr]  --> src/lib.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![cfg(doc=false)]
[INFO] [stderr]   |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0565`.
[INFO] [stderr] error: could not compile `rainbow_svg_mask`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0565`.
[INFO] [stderr] error: could not compile `rainbow_svg_mask`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "cfebe1f26ea288dc531649b35c3b25687c39755fad589715ab712e3bc413b43c"`
[INFO] running `"docker" "rm" "-f" "cfebe1f26ea288dc531649b35c3b25687c39755fad589715ab712e3bc413b43c"`
[INFO] [stdout] cfebe1f26ea288dc531649b35c3b25687c39755fad589715ab712e3bc413b43c