[INFO] cloning repository https://github.com/shivamkedia17/cipher_a2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shivamkedia17/cipher_a2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshivamkedia17%2Fcipher_a2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshivamkedia17%2Fcipher_a2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8e9ef8d6422c05e49e87a836b952d433b112c7ea
[INFO] building shivamkedia17/cipher_a2 against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshivamkedia17%2Fcipher_a2" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shivamkedia17/cipher_a2 on toolchain 44f415c1d617ebc7b931a243b7b321ef8a6ca47c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/shivamkedia17/cipher_a2
[INFO] finished tweaking git repo https://github.com/shivamkedia17/cipher_a2
[INFO] tweaked toml for git repo https://github.com/shivamkedia17/cipher_a2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/shivamkedia17/cipher_a2 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" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 121e5fe5b83681b6b2217e1d1d6a4abfe07e99b7b5c56b6700e7814f64d5033e
[INFO] running `Command { std: "docker" "start" "-a" "121e5fe5b83681b6b2217e1d1d6a4abfe07e99b7b5c56b6700e7814f64d5033e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "121e5fe5b83681b6b2217e1d1d6a4abfe07e99b7b5c56b6700e7814f64d5033e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "121e5fe5b83681b6b2217e1d1d6a4abfe07e99b7b5c56b6700e7814f64d5033e", kill_on_drop: false }`
[INFO] [stdout] 121e5fe5b83681b6b2217e1d1d6a4abfe07e99b7b5c56b6700e7814f64d5033e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10dbfb67e0a68d668ca5197cb42f9a50ef84c094ea699cb78438a1160197d9e7
[INFO] running `Command { std: "docker" "start" "-a" "10dbfb67e0a68d668ca5197cb42f9a50ef84c094ea699cb78438a1160197d9e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling utf8parse v0.2.1
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling anstyle-parse v0.2.3
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling anstyle-query v1.0.2
[INFO] [stderr]    Compiling anstyle v1.0.6
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling colorchoice v1.0.0
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling anstream v0.6.12
[INFO] [stderr]    Compiling wyz v0.5.1
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]    Compiling funty v2.0.0
[INFO] [stderr]    Compiling strsim v0.11.0
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling clap_lex v0.7.0
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling clap_builder v4.5.1
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling syn v2.0.50
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling bitvec v1.0.1
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.5
[INFO] [stderr]    Compiling ryu v1.0.17
[INFO] [stderr]    Compiling lru v0.7.8
[INFO] [stderr]    Compiling num-iter v0.1.44
[INFO] [stderr]    Compiling num-modular v0.5.1
[INFO] [stderr]    Compiling num v0.4.1
[INFO] [stderr]    Compiling num-prime v0.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling clap_derive v4.5.0
[INFO] [stderr]    Compiling clap v4.5.1
[INFO] [stderr]    Compiling cipher_a2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0753]: expected outer doc comment
[INFO] [stdout]   --> src/utils.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  |   //! IO utils
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 9  |
[INFO] [stdout] 10 | / pub fn write_to_file<T, P>(data: &T, filename: &P) -> Result<(), Box<dyn std::error::Error>>
[INFO] [stdout] 11 | | where
[INFO] [stdout] 12 | |     T: Serialize,
[INFO] [stdout] 13 | |     P: AsRef<Path>,
[INFO] [stdout] ...  |
[INFO] [stdout] 24 | |     Ok(())
[INFO] [stdout] 25 | | }
[INFO] [stdout]    | |_- the inner doc comment doesn't annotate this function
[INFO] [stdout]    |
[INFO] [stdout] help: to annotate the function, change the doc comment from inner to outer style
[INFO] [stdout]    |
[INFO] [stdout] 8  - //! IO utils
[INFO] [stdout] 8  + /// IO utils
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0753`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cipher_a2` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "10dbfb67e0a68d668ca5197cb42f9a50ef84c094ea699cb78438a1160197d9e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10dbfb67e0a68d668ca5197cb42f9a50ef84c094ea699cb78438a1160197d9e7", kill_on_drop: false }`
[INFO] [stdout] 10dbfb67e0a68d668ca5197cb42f9a50ef84c094ea699cb78438a1160197d9e7