[INFO] cloning repository https://github.com/Welperooni/aoc2017
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Welperooni/aoc2017" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWelperooni%2Faoc2017"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWelperooni%2Faoc2017'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0a29a5ac73ceaeda37bd1afb75362dec1773840d
[INFO] testing Welperooni/aoc2017 against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWelperooni%2Faoc2017" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Welperooni/aoc2017 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/Welperooni/aoc2017
[INFO] finished tweaking git repo https://github.com/Welperooni/aoc2017
[INFO] tweaked toml for git repo https://github.com/Welperooni/aoc2017 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/Welperooni/aoc2017 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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 6cf552a22bdd4399100b773f89d959a2e8a88fc8a859fbb418521f9aa6a891b8
[INFO] running `"docker" "start" "-a" "6cf552a22bdd4399100b773f89d959a2e8a88fc8a859fbb418521f9aa6a891b8"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling aoc_2017 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(trace_macros)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(inclusive_range_syntax)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused label
[INFO] [stderr]    --> src/lib.rs:172:13
[INFO] [stderr]     |
[INFO] [stderr] 172 |             'outer: loop {
[INFO] [stderr]     |             ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_labels)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]     --> src/lib.rs:2513:22
[INFO] [stderr]      |
[INFO] [stderr] 2513 |                 l@'A'...'Z' => Tile::Letter(l),
[INFO] [stderr]      |                      ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]     --> src/lib.rs:2632:22
[INFO] [stderr]      |
[INFO] [stderr] 2632 |                 l@'A'...'Z' => Tile::Letter(l),
[INFO] [stderr]      |                      ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]     --> src/lib.rs:1919:5
[INFO] [stderr]      |
[INFO] [stderr] 1919 | /     lazy_static! {
[INFO] [stderr] 1920 | |         static ref excluded: Mutex<Vec<[i32; 2]>> = {
[INFO] [stderr] 1921 | |             Mutex::new(Vec::new())
[INFO] [stderr] 1922 | |         };
[INFO] [stderr] 1923 | |     }
[INFO] [stderr]      | |_____^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors; 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `aoc_2017`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "6cf552a22bdd4399100b773f89d959a2e8a88fc8a859fbb418521f9aa6a891b8"`
[INFO] running `"docker" "rm" "-f" "6cf552a22bdd4399100b773f89d959a2e8a88fc8a859fbb418521f9aa6a891b8"`
[INFO] [stdout] 6cf552a22bdd4399100b773f89d959a2e8a88fc8a859fbb418521f9aa6a891b8