[INFO] cloning repository https://github.com/sabry-awad97/file_concatenator_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sabry-awad97/file_concatenator_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsabry-awad97%2Ffile_concatenator_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsabry-awad97%2Ffile_concatenator_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c10c964868674f383b6159195bdf238b4faa5461
[INFO] checking sabry-awad97/file_concatenator_rust against try#9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869 for pr-129249
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsabry-awad97%2Ffile_concatenator_rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sabry-awad97/file_concatenator_rust on toolchain 9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sabry-awad97/file_concatenator_rust
[INFO] finished tweaking git repo https://github.com/sabry-awad97/file_concatenator_rust
[INFO] tweaked toml for git repo https://github.com/sabry-awad97/file_concatenator_rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/sabry-awad97/file_concatenator_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" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ec6f3854acb3230c2cb083561b75cf8b307a06252fd97e3a1a92a67ebac24df
[INFO] running `Command { std: "docker" "start" "-a" "8ec6f3854acb3230c2cb083561b75cf8b307a06252fd97e3a1a92a67ebac24df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ec6f3854acb3230c2cb083561b75cf8b307a06252fd97e3a1a92a67ebac24df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ec6f3854acb3230c2cb083561b75cf8b307a06252fd97e3a1a92a67ebac24df", kill_on_drop: false }`
[INFO] [stdout] 8ec6f3854acb3230c2cb083561b75cf8b307a06252fd97e3a1a92a67ebac24df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9df5a1667a0391bd8e6476e25844e8b0e40bad0ecc40564335f932b5fcd85dd0
[INFO] running `Command { std: "docker" "start" "-a" "9df5a1667a0391bd8e6476e25844e8b0e40bad0ecc40564335f932b5fcd85dd0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking file_concatenation v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this conversion is useless `std::io::Error` to `std::io::Error`
[INFO] [stdout]   --> src/user_input.rs:32:48
[INFO] [stdout]    |
[INFO] [stdout] 32 |             .map_err(|e| ProgramError::IoError(e.into()))?;
[INFO] [stdout]    |                                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `ProgramError` to `ProgramError`
[INFO] [stdout]   --> src/user_input.rs:40:24
[INFO] [stdout]    |
[INFO] [stdout] 40 |             return Err(ProgramError::NotFound.into());
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `ProgramError` to `ProgramError`
[INFO] [stdout]   --> src/user_input.rs:44:24
[INFO] [stdout]    |
[INFO] [stdout] 44 |             return Err(ProgramError::NotADirectory.into());
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `ProgramError` to `ProgramError`
[INFO] [stdout]   --> src/user_input.rs:59:30
[INFO] [stdout]    |
[INFO] [stdout] 59 |                 .map_err(|e| ProgramError::IoError(e).into())?;
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `std::io::Error` to `std::io::Error`
[INFO] [stdout]   --> src/lib.rs:17:44
[INFO] [stdout]    |
[INFO] [stdout] 17 |         .map_err(|e| ProgramError::IoError(e.into()))?
[INFO] [stdout]    |                                            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `std::io::Error` to `std::io::Error`
[INFO] [stdout]   --> src/user_input.rs:32:48
[INFO] [stdout]    |
[INFO] [stdout] 32 |             .map_err(|e| ProgramError::IoError(e.into()))?;
[INFO] [stdout]    |                                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `ProgramError` to `ProgramError`
[INFO] [stdout]   --> src/user_input.rs:40:24
[INFO] [stdout]    |
[INFO] [stdout] 40 |             return Err(ProgramError::NotFound.into());
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `ProgramError` to `ProgramError`
[INFO] [stdout]   --> src/user_input.rs:44:24
[INFO] [stdout]    |
[INFO] [stdout] 44 |             return Err(ProgramError::NotADirectory.into());
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `ProgramError` to `ProgramError`
[INFO] [stdout]   --> src/user_input.rs:59:30
[INFO] [stdout]    |
[INFO] [stdout] 59 |                 .map_err(|e| ProgramError::IoError(e).into())?;
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `std::io::Error` to `std::io::Error`
[INFO] [stdout]   --> src/lib.rs:17:44
[INFO] [stdout]    |
[INFO] [stdout] 17 |         .map_err(|e| ProgramError::IoError(e.into()))?
[INFO] [stdout]    |                                            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `file_concatenation` (lib) due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `file_concatenation` (lib test) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "9df5a1667a0391bd8e6476e25844e8b0e40bad0ecc40564335f932b5fcd85dd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9df5a1667a0391bd8e6476e25844e8b0e40bad0ecc40564335f932b5fcd85dd0", kill_on_drop: false }`
[INFO] [stdout] 9df5a1667a0391bd8e6476e25844e8b0e40bad0ecc40564335f932b5fcd85dd0