[INFO] updating cached repository https://github.com/j-fro/rocket-todo
[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] ebba3a6bc3dca4b5c258b75b41807c6c659f2331
[INFO] checking j-fro/rocket-todo against beta-2019-10-27 for pr-65897
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj-fro%2Frocket-todo" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/j-fro/rocket-todo on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/j-fro/rocket-todo
[INFO] finished tweaking git repo https://github.com/j-fro/rocket-todo
[INFO] tweaked toml for git repo https://github.com/j-fro/rocket-todo written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/j-fro/rocket-todo already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-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] c1d54f67dacef3d63e8a6548e91c0bd1b592c9bf372e5acbd0634aa840af3584
[INFO] running `"docker" "start" "-a" "c1d54f67dacef3d63e8a6548e91c0bd1b592c9bf372e5acbd0634aa840af3584"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.19
[INFO] [stderr]     Checking serde v0.8.22
[INFO] [stderr]     Checking md5 v0.2.1
[INFO] [stderr]     Checking phf_shared v0.7.20
[INFO] [stderr]     Checking fallible-iterator v0.1.3
[INFO] [stderr]     Checking quick-error v1.1.0
[INFO] [stderr]     Checking bufstream v0.1.2
[INFO] [stderr]    Compiling syn v0.10.6
[INFO] [stderr]     Checking toml v0.2.1
[INFO] [stderr]    Compiling rocket_codegen v0.1.4
[INFO] [stderr]    Compiling idna v0.1.0
[INFO] [stderr]     Checking solicit v0.4.4
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket_codegen-0.1.4/build.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(slice_patterns)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]    Compiling unicase v1.4.0
[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 `rocket_codegen`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "c1d54f67dacef3d63e8a6548e91c0bd1b592c9bf372e5acbd0634aa840af3584"`
[INFO] running `"docker" "rm" "-f" "c1d54f67dacef3d63e8a6548e91c0bd1b592c9bf372e5acbd0634aa840af3584"`
[INFO] [stdout] c1d54f67dacef3d63e8a6548e91c0bd1b592c9bf372e5acbd0634aa840af3584