[INFO] updating cached repository https://github.com/stefanoc/advent [INFO] running `Command { std: "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", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 856f78d921d2829f0809363d24d0351b3ea81657 [INFO] testing stefanoc/advent against 1.45.2 for beta-1.46-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstefanoc%2Fadvent" "/workspace/builds/worker-12/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/stefanoc/advent on toolchain 1.45.2 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/stefanoc/advent [INFO] finished tweaking git repo https://github.com/stefanoc/advent [INFO] tweaked toml for git repo https://github.com/stefanoc/advent written to /workspace/builds/worker-12/source/Cargo.toml [INFO] crate git repo https://github.com/stefanoc/advent already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] error: the lock file /workspace/builds/worker-12/source/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag. [INFO] the lockfile is outdated, regenerating it [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] bda58ed2b104e56cb495183bf89dadd9b416c2fae48d008c2695dbd9f2a76bee [INFO] running `Command { std: "docker" "start" "-a" "bda58ed2b104e56cb495183bf89dadd9b416c2fae48d008c2695dbd9f2a76bee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bda58ed2b104e56cb495183bf89dadd9b416c2fae48d008c2695dbd9f2a76bee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bda58ed2b104e56cb495183bf89dadd9b416c2fae48d008c2695dbd9f2a76bee", kill_on_drop: false }` [INFO] [stdout] bda58ed2b104e56cb495183bf89dadd9b416c2fae48d008c2695dbd9f2a76bee [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a1fceb2f3ef1e9cf460e3d775c59a8fcfe9d4de36ddf27415888ce1a4f2534af [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "a1fceb2f3ef1e9cf460e3d775c59a8fcfe9d4de36ddf27415888ce1a4f2534af", kill_on_drop: false }` [INFO] [stderr] Compiling iterslide v1.0.1 [INFO] [stderr] Compiling permutohedron v0.2.4 [INFO] [stderr] Compiling md5 v0.7.0 [INFO] [stderr] Compiling itertools v0.9.0 [INFO] [stderr] Compiling advent v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(str_char)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/six.rs:45:9 [INFO] [stdout] | [INFO] [stdout] 45 | (Self::locate(x0, y) .. Self::locate(x1, y) + 1) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/eleven.rs:20:60 [INFO] [stdout] | [INFO] [stdout] 20 | let has_seq = s.chars().slide(3).any(|seq| is_sequence(&seq)); [INFO] [stdout] | ^^^^ expected slice `[char]`, found struct `std::collections::VecDeque` [INFO] [stdout] | [INFO] [stdout] = note: expected reference `&[char]` [INFO] [stdout] found reference `&std::collections::VecDeque` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0308, E0554. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stderr] error: could not compile `advent`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `Command { std: "docker" "inspect" "a1fceb2f3ef1e9cf460e3d775c59a8fcfe9d4de36ddf27415888ce1a4f2534af", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a1fceb2f3ef1e9cf460e3d775c59a8fcfe9d4de36ddf27415888ce1a4f2534af", kill_on_drop: false }` [INFO] [stdout] a1fceb2f3ef1e9cf460e3d775c59a8fcfe9d4de36ddf27415888ce1a4f2534af