[INFO] cloning repository https://github.com/mzh-tbg/OCR-40-Algorithm-Challenges-Booklet--Rust-Edition-
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mzh-tbg/OCR-40-Algorithm-Challenges-Booklet--Rust-Edition-" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmzh-tbg%2FOCR-40-Algorithm-Challenges-Booklet--Rust-Edition-", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmzh-tbg%2FOCR-40-Algorithm-Challenges-Booklet--Rust-Edition-'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 61e440c1ce1d0c50ef0b39d08bb4023a2a46f6e8
[INFO] checking mzh-tbg/OCR-40-Algorithm-Challenges-Booklet--Rust-Edition- against master#fd17deacce374a4185c882795be162e17b557050 for pr-138001
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmzh-tbg%2FOCR-40-Algorithm-Challenges-Booklet--Rust-Edition-" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mzh-tbg/OCR-40-Algorithm-Challenges-Booklet--Rust-Edition- on toolchain fd17deacce374a4185c882795be162e17b557050
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fd17deacce374a4185c882795be162e17b557050" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mzh-tbg/OCR-40-Algorithm-Challenges-Booklet--Rust-Edition-
[INFO] finished tweaking git repo https://github.com/mzh-tbg/OCR-40-Algorithm-Challenges-Booklet--Rust-Edition-
[INFO] tweaked toml for git repo https://github.com/mzh-tbg/OCR-40-Algorithm-Challenges-Booklet--Rust-Edition- written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mzh-tbg/OCR-40-Algorithm-Challenges-Booklet--Rust-Edition- 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" "+fd17deacce374a4185c882795be162e17b557050" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded capitalize v0.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+fd17deacce374a4185c882795be162e17b557050" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a06f975f4758539250c2141dad390226a753a8b31a813675f63b833173a85d0
[INFO] running `Command { std: "docker" "start" "-a" "9a06f975f4758539250c2141dad390226a753a8b31a813675f63b833173a85d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a06f975f4758539250c2141dad390226a753a8b31a813675f63b833173a85d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a06f975f4758539250c2141dad390226a753a8b31a813675f63b833173a85d0", kill_on_drop: false }`
[INFO] [stdout] 9a06f975f4758539250c2141dad390226a753a8b31a813675f63b833173a85d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+fd17deacce374a4185c882795be162e17b557050" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88f739c41147bfa334d20abf19c04a85da31da718a8406387eef9e9527d0585b
[INFO] running `Command { std: "docker" "start" "-a" "88f739c41147bfa334d20abf19c04a85da31da718a8406387eef9e9527d0585b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking capitalize v0.3.4
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking ocr-40-algorithm-challenges-booklet-rust-edition v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `read_input::read_input`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use read_input::read_input;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_input` is never used
[INFO] [stdout]  --> src/read_input.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn read_input(prompt: &str) -> String {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `read_input::read_input`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use read_input::read_input;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_input` is never used
[INFO] [stdout]  --> src/read_input.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn read_input(prompt: &str) -> String {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.52s
[INFO] running `Command { std: "docker" "inspect" "88f739c41147bfa334d20abf19c04a85da31da718a8406387eef9e9527d0585b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88f739c41147bfa334d20abf19c04a85da31da718a8406387eef9e9527d0585b", kill_on_drop: false }`
[INFO] [stdout] 88f739c41147bfa334d20abf19c04a85da31da718a8406387eef9e9527d0585b