[INFO] cloning repository https://github.com/DandelionWithLute/learn-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DandelionWithLute/learn-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDandelionWithLute%2Flearn-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDandelionWithLute%2Flearn-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 55abbddd75126bc3c909833baeacf47a29421dd5
[INFO] checking DandelionWithLute/learn-rust against master#f5e2df741b4a9820a7579f0c8eccc951706a8782 for pr-147984
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDandelionWithLute%2Flearn-rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/DandelionWithLute/learn-rust
[INFO] finished tweaking git repo https://github.com/DandelionWithLute/learn-rust
[INFO] tweaked toml for git repo https://github.com/DandelionWithLute/learn-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/DandelionWithLute/learn-rust on toolchain f5e2df741b4a9820a7579f0c8eccc951706a8782
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f5e2df741b4a9820a7579f0c8eccc951706a8782" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/DandelionWithLute/learn-rust 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" "+f5e2df741b4a9820a7579f0c8eccc951706a8782" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zip v2.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+f5e2df741b4a9820a7579f0c8eccc951706a8782" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52122c6feb92d6321f6c427fb194d1245bf6b53e208e01399ee39be26486510d
[INFO] running `Command { std: "docker" "start" "-a" "52122c6feb92d6321f6c427fb194d1245bf6b53e208e01399ee39be26486510d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52122c6feb92d6321f6c427fb194d1245bf6b53e208e01399ee39be26486510d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52122c6feb92d6321f6c427fb194d1245bf6b53e208e01399ee39be26486510d", kill_on_drop: false }`
[INFO] [stdout] 52122c6feb92d6321f6c427fb194d1245bf6b53e208e01399ee39be26486510d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+f5e2df741b4a9820a7579f0c8eccc951706a8782" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca285793d0597210d6ce3884c38ec32cad6e65c6ce9421fb875fc39b3ffd6f14
[INFO] running `Command { std: "docker" "start" "-a" "ca285793d0597210d6ce3884c38ec32cad6e65c6ce9421fb875fc39b3ffd6f14", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]     Checking deranged v0.4.1
[INFO] [stderr]     Checking lockfree-object-pool v0.1.6
[INFO] [stderr]    Compiling zip v2.5.0
[INFO] [stderr]     Checking indexmap v2.8.0
[INFO] [stderr]     Checking lzma-rs v0.3.0
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]     Checking clap_builder v4.5.34
[INFO] [stderr]     Checking md-5 v0.10.6
[INFO] [stderr]     Checking pbkdf2 v0.12.2
[INFO] [stderr]     Checking zopfli v0.8.1
[INFO] [stderr]     Checking uuid v1.16.0
[INFO] [stderr]    Compiling jobserver v0.1.32
[INFO] [stderr]    Compiling cc v1.2.17
[INFO] [stderr]     Checking time v0.3.41
[INFO] [stderr]    Compiling zstd-sys v2.0.15+zstd.1.5.7
[INFO] [stderr]    Compiling bzip2-sys v0.1.13+1.0.8
[INFO] [stderr]    Compiling lzma-sys v0.1.20
[INFO] [stderr]     Checking clap v4.5.34
[INFO] [stderr]     Checking xz2 v0.1.7
[INFO] [stderr]     Checking bzip2 v0.5.2
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]     Checking zeroize v1.8.1
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]     Checking zstd v0.13.3
[INFO] [stderr]     Checking rusty_app v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `os`
[INFO] [stdout]  --> src/main.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs, os};
[INFO] [stdout]   |               ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `os`
[INFO] [stdout]  --> src/main.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs, os};
[INFO] [stdout]   |               ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this method takes 0 arguments but 1 argument was supplied
[INFO] [stdout]   --> src/main.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     _array.concat([b"world"]);
[INFO] [stdout]    |            ^^^^^^ ---------- unexpected argument of type `[&[u8; 5]; 1]`
[INFO] [stdout]    |
[INFO] [stdout] note: method defined here
[INFO] [stdout]   --> /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/alloc/src/slice.rs:573:12
[INFO] [stdout] help: remove the extra argument
[INFO] [stdout]    |
[INFO] [stdout] 16 -     _array.concat([b"world"]);
[INFO] [stdout] 16 +     _array.concat();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this method takes 0 arguments but 1 argument was supplied
[INFO] [stdout]   --> src/main.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     _array.concat([b"world"]);
[INFO] [stdout]    |            ^^^^^^ ---------- unexpected argument of type `[&[u8; 5]; 1]`
[INFO] [stdout]    |
[INFO] [stdout] note: method defined here
[INFO] [stdout]   --> /rustc/f5e2df741b4a9820a7579f0c8eccc951706a8782/library/alloc/src/slice.rs:573:12
[INFO] [stdout] help: remove the extra argument
[INFO] [stdout]    |
[INFO] [stdout] 16 -     _array.concat([b"world"]);
[INFO] [stdout] 16 +     _array.concat();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rusty_app` (bin "rusty_app") due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rusty_app` (bin "rusty_app" test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "ca285793d0597210d6ce3884c38ec32cad6e65c6ce9421fb875fc39b3ffd6f14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca285793d0597210d6ce3884c38ec32cad6e65c6ce9421fb875fc39b3ffd6f14", kill_on_drop: false }`
[INFO] [stdout] ca285793d0597210d6ce3884c38ec32cad6e65c6ce9421fb875fc39b3ffd6f14
