[INFO] updating cached repository https://github.com/golddranks/kadouchi
[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] 3b230bae30f046fc427ef4cac3f919cb7c0bc1a9
[INFO] testing golddranks/kadouchi against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgolddranks%2Fkadouchi" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/golddranks/kadouchi on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/golddranks/kadouchi
[INFO] finished tweaking git repo https://github.com/golddranks/kadouchi
[INFO] tweaked toml for git repo https://github.com/golddranks/kadouchi written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/golddranks/kadouchi already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7dad4db3260d408fda1b1a73d471d8664c4d430d58da4d17c5438d92b4674bc9
[INFO] running `"docker" "start" "-a" "7dad4db3260d408fda1b1a73d471d8664c4d430d58da4d17c5438d92b4674bc9"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.42
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling regex v1.0.0
[INFO] [stderr]    Compiling lazy_static v1.0.1
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.8
[INFO] [stderr]    Compiling termcolor v0.3.6
[INFO] [stderr]    Compiling scoped_stack v0.1.0 (https://github.com/golddranks/scoped_stack#0cbf7808)
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling humantime v1.1.1
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling regex-syntax v0.6.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling atty v0.2.10
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling nom v4.0.0
[INFO] [stderr]    Compiling backtrace v0.3.8
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling env_logger v0.5.10
[INFO] [stderr]    Compiling kadouchi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(nll)]
[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 E0554`.
[INFO] [stderr] error: could not compile `kadouchi`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "7dad4db3260d408fda1b1a73d471d8664c4d430d58da4d17c5438d92b4674bc9"`
[INFO] running `"docker" "rm" "-f" "7dad4db3260d408fda1b1a73d471d8664c4d430d58da4d17c5438d92b4674bc9"`
[INFO] [stdout] 7dad4db3260d408fda1b1a73d471d8664c4d430d58da4d17c5438d92b4674bc9