[INFO] updating cached repository https://github.com/w4tson/advent-of-code-2017-rust
[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] ac8ad2f06312bdf2192741bd10ac71eb5e29b197
[INFO] checking w4tson/advent-of-code-2017-rust against beta-2019-10-27 for pr-65897
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fw4tson%2Fadvent-of-code-2017-rust" "/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/w4tson/advent-of-code-2017-rust 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/w4tson/advent-of-code-2017-rust
[INFO] finished tweaking git repo https://github.com/w4tson/advent-of-code-2017-rust
[INFO] tweaked toml for git repo https://github.com/w4tson/advent-of-code-2017-rust written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/w4tson/advent-of-code-2017-rust 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-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" "+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] 865b01998d06da9e62f2957b43857685e7d997fc34eb69fc16b3f9d6ec2b83a2
[INFO] running `"docker" "start" "-a" "865b01998d06da9e62f2957b43857685e7d997fc34eb69fc16b3f9d6ec2b83a2"`
[INFO] [stderr]     Checking spectral v0.6.0
[INFO] [stderr]     Checking aoc2017 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: expected one of `,`, `@`, `]`, or `|`, found `..`
[INFO] [stderr]   --> src/day13/tests.rs:26:35
[INFO] [stderr]    |
[INFO] [stderr] 26 |         &[first, second, ref _tail..] => (first, second),
[INFO] [stderr]    |                                   ^^ expected one of `,`, `@`, `]`, or `|` here
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(swap_with_slice)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(iterator_flatten)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(slice_patterns)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![feature(generators, generator_trait)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(swap_with_slice)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(iterator_flatten)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(slice_patterns)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![feature(generators, generator_trait)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `resume` found for type `[generator@src/day15/mod.rs:10:25: 13:6 _]` in the current scope
[INFO] [stderr]   --> src/day15/mod.rs:15:21
[INFO] [stderr]    |
[INFO] [stderr] 15 |     match generator.resume() {
[INFO] [stderr]    |                     ^^^^^^ method not found in `[generator@src/day15/mod.rs:10:25: 13:6 _]`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `resume` found for type `[generator@src/day15/mod.rs:10:25: 13:6 _]` in the current scope
[INFO] [stderr]   --> src/day15/mod.rs:20:21
[INFO] [stderr]    |
[INFO] [stderr] 20 |     match generator.resume() {
[INFO] [stderr]    |                     ^^^^^^ method not found in `[generator@src/day15/mod.rs:10:25: 13:6 _]`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `resume` found for type `[generator@src/day15/mod.rs:10:25: 13:6 _]` in the current scope
[INFO] [stderr]   --> src/day15/mod.rs:15:21
[INFO] [stderr]    |
[INFO] [stderr] 15 |     match generator.resume() {
[INFO] [stderr]    |                     ^^^^^^ method not found in `[generator@src/day15/mod.rs:10:25: 13:6 _]`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `resume` found for type `[generator@src/day15/mod.rs:10:25: 13:6 _]` in the current scope
[INFO] [stderr]   --> src/day15/mod.rs:20:21
[INFO] [stderr]    |
[INFO] [stderr] 20 |     match generator.resume() {
[INFO] [stderr]    |                     ^^^^^^ method not found in `[generator@src/day15/mod.rs:10:25: 13:6 _]`
[INFO] [stderr] 
[INFO] [stderr] error[E0698]: type inside generator must be known in this context
[INFO] [stderr]   --> src/day15/mod.rs:11:15
[INFO] [stderr]    |
[INFO] [stderr] 11 |         yield 1;
[INFO] [stderr]    |               ^ cannot infer type for `{integer}`
[INFO] [stderr]    |
[INFO] [stderr] note: the type is part of the generator because of this `yield`
[INFO] [stderr]   --> src/day15/mod.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |         yield 1;
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 7 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, E0599, E0698.
[INFO] [stderr] For more information about an error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `aoc2017`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0698]: type inside generator must be known in this context
[INFO] [stderr]   --> src/day15/mod.rs:11:15
[INFO] [stderr]    |
[INFO] [stderr] 11 |         yield 1;
[INFO] [stderr]    |               ^ cannot infer type for `{integer}`
[INFO] [stderr]    |
[INFO] [stderr] note: the type is part of the generator because of this `yield`
[INFO] [stderr]   --> src/day15/mod.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |         yield 1;
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 8 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, E0599, E0698.
[INFO] [stderr] For more information about an error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `aoc2017`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "865b01998d06da9e62f2957b43857685e7d997fc34eb69fc16b3f9d6ec2b83a2"`
[INFO] running `"docker" "rm" "-f" "865b01998d06da9e62f2957b43857685e7d997fc34eb69fc16b3f9d6ec2b83a2"`
[INFO] [stdout] 865b01998d06da9e62f2957b43857685e7d997fc34eb69fc16b3f9d6ec2b83a2