[INFO] updating cached repository https://github.com/Systemcluster/bracket2-rs
[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] 52538166672b9b31fda33a3ad0abd3fc1cac9a62
[INFO] checking Systemcluster/bracket2-rs against nightly-2019-10-27 for pr-65897
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSystemcluster%2Fbracket2-rs" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Systemcluster/bracket2-rs 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/Systemcluster/bracket2-rs
[INFO] finished tweaking git repo https://github.com/Systemcluster/bracket2-rs
[INFO] tweaked toml for git repo https://github.com/Systemcluster/bracket2-rs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Systemcluster/bracket2-rs 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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] e91eabbf39f52fa25409b0575c9c8576a987652b9237841ecab910306fe7a7a1
[INFO] running `"docker" "start" "-a" "e91eabbf39f52fa25409b0575c9c8576a987652b9237841ecab910306fe7a7a1"`
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking regex v0.2.5
[INFO] [stderr]     Checking simplelog v0.4.4
[INFO] [stderr]     Checking bracket2 v0.0.1-dev (/opt/rustwide/workdir)
[INFO] [stderr] error[E0635]: unknown feature `catch_expr`
[INFO] [stderr]   --> src/main.rs:10:42
[INFO] [stderr]    |
[INFO] [stderr] 10 | #![feature(try_trait, termination_trait, catch_expr)] // error handling
[INFO] [stderr]    |                                          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0635]: unknown feature `nested_method_call`
[INFO] [stderr]  --> src/main.rs:7:58
[INFO] [stderr]   |
[INFO] [stderr] 7 | #![feature(underscore_lifetimes, in_band_lifetimes, nll, nested_method_call)] // simplify lifetimes
[INFO] [stderr]   |                                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0635`.
[INFO] [stderr] error: could not compile `bracket2`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0635]: unknown feature `catch_expr`
[INFO] [stderr]   --> src/main.rs:10:42
[INFO] [stderr]    |
[INFO] [stderr] 10 | #![feature(try_trait, termination_trait, catch_expr)] // error handling
[INFO] [stderr]    |                                          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0635]: unknown feature `nested_method_call`
[INFO] [stderr]  --> src/main.rs:7:58
[INFO] [stderr]   |
[INFO] [stderr] 7 | #![feature(underscore_lifetimes, in_band_lifetimes, nll, nested_method_call)] // simplify lifetimes
[INFO] [stderr]   |                                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0635`.
[INFO] [stderr] error: could not compile `bracket2`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e91eabbf39f52fa25409b0575c9c8576a987652b9237841ecab910306fe7a7a1"`
[INFO] running `"docker" "rm" "-f" "e91eabbf39f52fa25409b0575c9c8576a987652b9237841ecab910306fe7a7a1"`
[INFO] [stdout] e91eabbf39f52fa25409b0575c9c8576a987652b9237841ecab910306fe7a7a1