[INFO] cloning repository https://github.com/mmueller/advent2023
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mmueller/advent2023" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmueller%2Fadvent2023", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmueller%2Fadvent2023'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fe7e6eac40a388dd5e749de8a44b6d22e0d7f338
[INFO] checking mmueller/advent2023 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmueller%2Fadvent2023" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mmueller/advent2023 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/mmueller/advent2023
[INFO] finished tweaking git repo https://github.com/mmueller/advent2023
[INFO] tweaked toml for git repo https://github.com/mmueller/advent2023 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mmueller/advent2023 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 strum v0.25.0
[INFO] [stderr]   Downloaded rustversion v1.0.14
[INFO] [stderr]   Downloaded strum_macros v0.25.3
[INFO] [stderr]   Downloaded num v0.4.1
[INFO] [stderr]   Downloaded num-traits v0.2.17
[INFO] [stderr]   Downloaded argparse v0.2.2
[INFO] [stderr]   Downloaded num-complex v0.4.4
[INFO] [stderr]   Downloaded num-iter v0.1.43
[INFO] [stderr]   Downloaded num-bigint v0.4.4
[INFO] [stderr]   Downloaded regex v1.10.2
[INFO] [stderr]   Downloaded regex-automata v0.4.3
[INFO] [stderr]   Downloaded syn v2.0.40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] b0674fee21638fe983942111578d6e7326406e7b2b95658aa0005161003aa03e
[INFO] running `Command { std: "docker" "start" "-a" "b0674fee21638fe983942111578d6e7326406e7b2b95658aa0005161003aa03e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0674fee21638fe983942111578d6e7326406e7b2b95658aa0005161003aa03e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0674fee21638fe983942111578d6e7326406e7b2b95658aa0005161003aa03e", kill_on_drop: false }`
[INFO] [stdout] b0674fee21638fe983942111578d6e7326406e7b2b95658aa0005161003aa03e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 156b2ef1b9b61aa8de63f55f2e7eb292b2eb942b03b1a6d26b5a8ad1f8b22b0e
[INFO] running `Command { std: "docker" "start" "-a" "156b2ef1b9b61aa8de63f55f2e7eb292b2eb942b03b1a6d26b5a8ad1f8b22b0e", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking argparse v0.2.2
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.40
[INFO] [stderr]     Checking num-complex v0.4.4
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]    Compiling strum_macros v0.25.3
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking strum v0.25.0
[INFO] [stderr]     Checking advent2023 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `strum` is imported redundantly
[INFO] [stdout]   --> src/advent/day05.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | use strum::{self, EnumString};
[INFO] [stdout]    |             ^^^^ the item `strum` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `strum` is imported redundantly
[INFO] [stdout]  --> src/advent/day08.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 | use strum::{self, EnumString};
[INFO] [stdout]   |             ^^^^ the item `strum` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `strum` is imported redundantly
[INFO] [stdout]   --> src/advent/day05.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | use strum::{self, EnumString};
[INFO] [stdout]    |             ^^^^ the item `strum` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `strum` is imported redundantly
[INFO] [stdout]  --> src/advent/day08.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 | use strum::{self, EnumString};
[INFO] [stdout]   |             ^^^^ the item `strum` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.56s
[INFO] running `Command { std: "docker" "inspect" "156b2ef1b9b61aa8de63f55f2e7eb292b2eb942b03b1a6d26b5a8ad1f8b22b0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "156b2ef1b9b61aa8de63f55f2e7eb292b2eb942b03b1a6d26b5a8ad1f8b22b0e", kill_on_drop: false }`
[INFO] [stdout] 156b2ef1b9b61aa8de63f55f2e7eb292b2eb942b03b1a6d26b5a8ad1f8b22b0e