[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] testing DandelionWithLute/learn-rust against try#311784882baa42a9638298cb325fa01a062c9d0f+cargoflags=-Zbuild-dir-new-layout for pr-149852
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDandelionWithLute%2Flearn-rust" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/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-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/DandelionWithLute/learn-rust on toolchain 311784882baa42a9638298cb325fa01a062c9d0f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+311784882baa42a9638298cb325fa01a062c9d0f" "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" "+311784882baa42a9638298cb325fa01a062c9d0f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+311784882baa42a9638298cb325fa01a062c9d0f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c848fb3a45df7b9aa8e4ba15a59659acb7a5f89b9bc7bae9aea6d1a13806911
[INFO] running `Command { std: "docker" "start" "-a" "3c848fb3a45df7b9aa8e4ba15a59659acb7a5f89b9bc7bae9aea6d1a13806911", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c848fb3a45df7b9aa8e4ba15a59659acb7a5f89b9bc7bae9aea6d1a13806911", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c848fb3a45df7b9aa8e4ba15a59659acb7a5f89b9bc7bae9aea6d1a13806911", kill_on_drop: false }`
[INFO] [stdout] 3c848fb3a45df7b9aa8e4ba15a59659acb7a5f89b9bc7bae9aea6d1a13806911
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+311784882baa42a9638298cb325fa01a062c9d0f" "build" "--frozen" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] ba6542f22d32029cdf5787db7b556e56328ba6d1cf1d05b813e7c85d85902823
[INFO] running `Command { std: "docker" "start" "-a" "ba6542f22d32029cdf5787db7b556e56328ba6d1cf1d05b813e7c85d85902823", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling pkg-config v0.3.32
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling subtle v2.6.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]    Compiling utf8parse v0.2.2
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]    Compiling anstyle-parse v0.2.6
[INFO] [stderr]    Compiling crc32fast v1.4.2
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.1
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling cpufeatures v0.2.17
[INFO] [stderr]    Compiling crc-catalog v2.4.0
[INFO] [stderr]    Compiling adler2 v2.0.0
[INFO] [stderr]    Compiling anstyle v1.0.10
[INFO] [stderr]    Compiling anstyle-query v1.1.2
[INFO] [stderr]    Compiling colorchoice v1.0.3
[INFO] [stderr]    Compiling powerfmt v0.2.0
[INFO] [stderr]    Compiling crc v3.2.1
[INFO] [stderr]    Compiling miniz_oxide v0.8.5
[INFO] [stderr]    Compiling deranged v0.4.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling anstream v0.6.18
[INFO] [stderr]    Compiling jobserver v0.1.32
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling cc v1.2.17
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling time-core v0.1.4
[INFO] [stderr]    Compiling bumpalo v3.17.0
[INFO] [stderr]    Compiling simd-adler32 v0.3.7
[INFO] [stderr]    Compiling zip v2.5.0
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]    Compiling equivalent v1.0.2
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling clap_lex v0.7.4
[INFO] [stderr]    Compiling anyhow v1.0.97
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling hashbrown v0.15.2
[INFO] [stderr]    Compiling lockfree-object-pool v0.1.6
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling inout v0.1.4
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling zopfli v0.8.1
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling cipher v0.4.4
[INFO] [stderr]    Compiling lzma-rs v0.3.0
[INFO] [stderr]    Compiling hmac v0.12.1
[INFO] [stderr]    Compiling pbkdf2 v0.12.2
[INFO] [stderr]    Compiling clap_builder v4.5.34
[INFO] [stderr]    Compiling aes v0.8.4
[INFO] [stderr]    Compiling md-5 v0.10.6
[INFO] [stderr]    Compiling sha1 v0.10.6
[INFO] [stderr]    Compiling indexmap v2.8.0
[INFO] [stderr]    Compiling time v0.3.41
[INFO] [stderr]    Compiling flate2 v1.1.0
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling deflate64 v0.1.9
[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]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling constant_time_eq v0.3.1
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling xz2 v0.1.7
[INFO] [stderr]    Compiling uuid v1.16.0
[INFO] [stderr]    Compiling bzip2 v0.5.2
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]    Compiling zeroize v1.8.1
[INFO] [stderr]    Compiling clap v4.5.34
[INFO] [stderr]    Compiling zstd v0.13.3
[INFO] [stderr]    Compiling 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] 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/311784882baa42a9638298cb325fa01a062c9d0f/library/alloc/src/slice.rs:575:11
[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] [stderr] error: could not compile `rusty_app` (bin "rusty_app") due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "ba6542f22d32029cdf5787db7b556e56328ba6d1cf1d05b813e7c85d85902823", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba6542f22d32029cdf5787db7b556e56328ba6d1cf1d05b813e7c85d85902823", kill_on_drop: false }`
[INFO] [stdout] ba6542f22d32029cdf5787db7b556e56328ba6d1cf1d05b813e7c85d85902823