[INFO] cloning repository https://github.com/jrheard/advent_2018 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jrheard/advent_2018" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrheard%2Fadvent_2018", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrheard%2Fadvent_2018'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9746b67d273a7b20e8520afe5bab8682eb705123 [INFO] checking jrheard/advent_2018 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrheard%2Fadvent_2018" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jrheard/advent_2018 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jrheard/advent_2018 [INFO] finished tweaking git repo https://github.com/jrheard/advent_2018 [INFO] tweaked toml for git repo https://github.com/jrheard/advent_2018 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/jrheard/advent_2018 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded serde_scan v0.3.2 [INFO] [stderr] Downloaded tinytemplate v1.0.1 [INFO] [stderr] Downloaded criterion-plot v0.3.0 [INFO] [stderr] Downloaded criterion v0.2.10 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 370ec365204e24209d99e3d929e1d49c170f85e1e76b40a0f650b4860f5df0df [INFO] running `Command { std: "docker" "start" "-a" "370ec365204e24209d99e3d929e1d49c170f85e1e76b40a0f650b4860f5df0df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "370ec365204e24209d99e3d929e1d49c170f85e1e76b40a0f650b4860f5df0df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "370ec365204e24209d99e3d929e1d49c170f85e1e76b40a0f650b4860f5df0df", kill_on_drop: false }` [INFO] [stdout] 370ec365204e24209d99e3d929e1d49c170f85e1e76b40a0f650b4860f5df0df [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ad07bc9d26b28d8d04d3f7e089a34645d1201a286ade2afd5aebf44ccc829851 [INFO] running `Command { std: "docker" "start" "-a" "ad07bc9d26b28d8d04d3f7e089a34645d1201a286ade2afd5aebf44ccc829851", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.48 [INFO] [stderr] Compiling proc-macro2 v0.4.27 [INFO] [stderr] Compiling serde v1.0.87 [INFO] [stderr] Compiling arrayvec v0.4.10 [INFO] [stderr] Checking lazy_static v1.2.0 [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Checking cfg-if v0.1.6 [INFO] [stderr] Compiling byteorder v1.3.1 [INFO] [stderr] Checking nodrop v0.1.13 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Checking crossbeam-utils v0.2.2 [INFO] [stderr] Compiling rayon-core v1.4.1 [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Checking either v1.5.0 [INFO] [stderr] Compiling ryu v0.2.7 [INFO] [stderr] Compiling rayon v1.0.3 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Checking itertools v0.8.0 [INFO] [stderr] Checking crossbeam-epoch v0.3.1 [INFO] [stderr] Checking ucd-util v0.1.3 [INFO] [stderr] Checking rand_core v0.4.0 [INFO] [stderr] Compiling quote v0.6.11 [INFO] [stderr] Checking num_cpus v1.9.0 [INFO] [stderr] Compiling regex v1.1.0 [INFO] [stderr] Compiling syn v0.15.26 [INFO] [stderr] Checking crossbeam-deque v0.2.0 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking aho-corasick v0.6.10 [INFO] [stderr] Checking regex-syntax v0.6.5 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking itoa v0.4.3 [INFO] [stderr] Checking utf8-ranges v1.0.2 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Checking csv-core v0.1.5 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking hashbrown v0.1.8 [INFO] [stderr] Checking textwrap v0.10.0 [INFO] [stderr] Checking same-file v1.0.4 [INFO] [stderr] Checking chrono v0.4.6 [INFO] [stderr] Checking cast v0.2.2 [INFO] [stderr] Checking bitflags v1.0.4 [INFO] [stderr] Checking walkdir v2.2.7 [INFO] [stderr] Checking clap v2.32.0 [INFO] [stderr] Checking criterion-plot v0.3.0 [INFO] [stderr] Checking rand_xoshiro v0.1.0 [INFO] [stderr] Checking rand_os v0.1.2 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Compiling serde_derive v1.0.87 [INFO] [stderr] Checking serde_scan v0.3.2 [INFO] [stderr] Checking serde_json v1.0.38 [INFO] [stderr] Checking csv v1.0.5 [INFO] [stderr] Checking advent_2018 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/sixteen.rs:68:18 [INFO] [stdout] | [INFO] [stdout] 68 | type Operation = Fn(&mut [usize; 4], usize, usize, usize); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 68 | type Operation = dyn Fn(&mut [usize; 4], usize, usize, usize); [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking tinytemplate v1.0.1 [INFO] [stderr] Checking criterion v0.2.10 [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/sixteen.rs:68:18 [INFO] [stdout] | [INFO] [stdout] 68 | type Operation = Fn(&mut [usize; 4], usize, usize, usize); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 68 | type Operation = dyn Fn(&mut [usize; 4], usize, usize, usize); [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [optimized + debuginfo] target(s) in 6.77s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.2.10 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "ad07bc9d26b28d8d04d3f7e089a34645d1201a286ade2afd5aebf44ccc829851", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ad07bc9d26b28d8d04d3f7e089a34645d1201a286ade2afd5aebf44ccc829851", kill_on_drop: false }` [INFO] [stdout] ad07bc9d26b28d8d04d3f7e089a34645d1201a286ade2afd5aebf44ccc829851 [INFO] checking jrheard/advent_2018 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrheard%2Fadvent_2018" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jrheard/advent_2018 on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jrheard/advent_2018 [INFO] finished tweaking git repo https://github.com/jrheard/advent_2018 [INFO] tweaked toml for git repo https://github.com/jrheard/advent_2018 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/jrheard/advent_2018 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 81c1dadef90e17e8fc29463f79e030547ac243e08672e7aceaa06decf467be29 [INFO] running `Command { std: "docker" "start" "-a" "81c1dadef90e17e8fc29463f79e030547ac243e08672e7aceaa06decf467be29", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "81c1dadef90e17e8fc29463f79e030547ac243e08672e7aceaa06decf467be29", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "81c1dadef90e17e8fc29463f79e030547ac243e08672e7aceaa06decf467be29", kill_on_drop: false }` [INFO] [stdout] 81c1dadef90e17e8fc29463f79e030547ac243e08672e7aceaa06decf467be29 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6dd0caaa7c8e35de083c6ca2ae3ebcf8b75bca03c2d7b898be93af6498f4ea91 [INFO] running `Command { std: "docker" "start" "-a" "6dd0caaa7c8e35de083c6ca2ae3ebcf8b75bca03c2d7b898be93af6498f4ea91", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.48 [INFO] [stderr] Compiling proc-macro2 v0.4.27 [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Compiling serde v1.0.87 [INFO] [stderr] Compiling arrayvec v0.4.10 [INFO] [stderr] Checking lazy_static v1.2.0 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Compiling byteorder v1.3.1 [INFO] [stderr] Checking cfg-if v0.1.6 [INFO] [stderr] Checking nodrop v0.1.13 [INFO] [stderr] Checking crossbeam-utils v0.2.2 [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Compiling rayon-core v1.4.1 [INFO] [stderr] Checking either v1.5.0 [INFO] [stderr] Compiling ryu v0.2.7 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Compiling rayon v1.0.3 [INFO] [stderr] Checking itertools v0.8.0 [INFO] [stderr] Checking crossbeam-epoch v0.3.1 [INFO] [stderr] Checking ucd-util v0.1.3 [INFO] [stderr] Compiling regex v1.1.0 [INFO] [stderr] Compiling quote v0.6.11 [INFO] [stderr] Checking num_cpus v1.9.0 [INFO] [stderr] Compiling syn v0.15.26 [INFO] [stderr] Checking crossbeam-deque v0.2.0 [INFO] [stderr] Checking rand_core v0.4.0 [INFO] [stderr] Checking aho-corasick v0.6.10 [INFO] [stderr] Checking regex-syntax v0.6.5 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking utf8-ranges v1.0.2 [INFO] [stderr] Checking itoa v0.4.3 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Checking textwrap v0.10.0 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking csv-core v0.1.5 [INFO] [stderr] Checking hashbrown v0.1.8 [INFO] [stderr] Checking bitflags v1.0.4 [INFO] [stderr] Checking chrono v0.4.6 [INFO] [stderr] Checking cast v0.2.2 [INFO] [stderr] Checking same-file v1.0.4 [INFO] [stderr] Checking walkdir v2.2.7 [INFO] [stderr] Checking criterion-plot v0.3.0 [INFO] [stderr] Checking clap v2.32.0 [INFO] [stderr] Checking rand_xoshiro v0.1.0 [INFO] [stderr] Checking rand_os v0.1.2 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Compiling serde_derive v1.0.87 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.1.0/src/exec.rs:754:13 [INFO] [stdout] | [INFO] [stdout] 754 | / match dfa::Fsm::reverse( [INFO] [stdout] 755 | | &self.ro.dfa_reverse, [INFO] [stdout] 756 | | self.cache, [INFO] [stdout] 757 | | false, [INFO] [stdout] ... | [INFO] [stdout] 764 | | Quit => return Some(Quit), [INFO] [stdout] 765 | | }; [INFO] [stdout] | |_____________^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `regex` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "6dd0caaa7c8e35de083c6ca2ae3ebcf8b75bca03c2d7b898be93af6498f4ea91", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6dd0caaa7c8e35de083c6ca2ae3ebcf8b75bca03c2d7b898be93af6498f4ea91", kill_on_drop: false }` [INFO] [stdout] 6dd0caaa7c8e35de083c6ca2ae3ebcf8b75bca03c2d7b898be93af6498f4ea91