[INFO] updating cached repository https://github.com/Axelderan/lexgen [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] 058593568e122cd6d158d6ab3a7d7a90c252759a [INFO] testing Axelderan/lexgen against 1.45.2 for beta-1.46-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAxelderan%2Flexgen" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Axelderan/lexgen 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/Axelderan/lexgen [INFO] finished tweaking git repo https://github.com/Axelderan/lexgen [INFO] tweaked toml for git repo https://github.com/Axelderan/lexgen written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/Axelderan/lexgen 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] c4a3e45efcf9a7b830ff1f9b0f303c0313b1327750882b06de883b189b561f33 [INFO] running `Command { std: "docker" "start" "-a" "c4a3e45efcf9a7b830ff1f9b0f303c0313b1327750882b06de883b189b561f33", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c4a3e45efcf9a7b830ff1f9b0f303c0313b1327750882b06de883b189b561f33", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c4a3e45efcf9a7b830ff1f9b0f303c0313b1327750882b06de883b189b561f33", kill_on_drop: false }` [INFO] [stdout] c4a3e45efcf9a7b830ff1f9b0f303c0313b1327750882b06de883b189b561f33 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 0677d075197a57ddc1798ccd1f03dec30ac42fccfbb274b03daba819e1ef23d1 [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" "0677d075197a57ddc1798ccd1f03dec30ac42fccfbb274b03daba819e1ef23d1", kill_on_drop: false }` [INFO] [stderr] Compiling rejeks v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `super::unoptimized_dfa` [INFO] [stdout] --> src/dfa/optimized_dfa.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use super::unoptimized_dfa; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around function argument [INFO] [stdout] --> src/dfa/optimized_dfa.rs:5:36 [INFO] [stdout] | [INFO] [stdout] 5 | let mut buckets = vec![vec![]; (acceptances + 1)]; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `NFATransition`, `NFA` [INFO] [stdout] --> src/dfa/mod.rs:5:23 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::dfa::nfa::{NFATransition, NFA}; [INFO] [stdout] | ^^^^^^^^^^^^^ ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `DFA`, `ParseError` [INFO] [stdout] --> src/lib.rs:11:18 [INFO] [stdout] | [INFO] [stdout] 11 | use crate::dfa::{ParseError, DFA}; [INFO] [stdout] | ^^^^^^^^^^ ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed for `std::option::Option` [INFO] [stdout] --> src/dfa/optimized_dfa.rs:38:34 [INFO] [stdout] | [INFO] [stdout] 38 | let mut new_bucket = None; [INFO] [stdout] | -------------- ^^^^ cannot infer type for type parameter `T` declared on the enum `Option` [INFO] [stdout] | | [INFO] [stdout] | consider giving `new_bucket` the explicit type `std::option::Option`, where the type parameter `T` is specified [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rejeks`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `Command { std: "docker" "inspect" "0677d075197a57ddc1798ccd1f03dec30ac42fccfbb274b03daba819e1ef23d1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0677d075197a57ddc1798ccd1f03dec30ac42fccfbb274b03daba819e1ef23d1", kill_on_drop: false }` [INFO] [stdout] 0677d075197a57ddc1798ccd1f03dec30ac42fccfbb274b03daba819e1ef23d1