[INFO] cloning repository https://github.com/yvan-sraka/base64decode
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yvan-sraka/base64decode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyvan-sraka%2Fbase64decode", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyvan-sraka%2Fbase64decode'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 60e4388a4e1388448e698653686297bc1a4b32b1
[INFO] testing yvan-sraka/base64decode against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyvan-sraka%2Fbase64decode" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yvan-sraka/base64decode on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yvan-sraka/base64decode
[INFO] finished tweaking git repo https://github.com/yvan-sraka/base64decode
[INFO] tweaked toml for git repo https://github.com/yvan-sraka/base64decode written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/yvan-sraka/base64decode already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ad3a91276411d8496eb16031125da315c55b8261799ee19403ff661b1fd13d5
[INFO] running `Command { std: "docker" "start" "-a" "9ad3a91276411d8496eb16031125da315c55b8261799ee19403ff661b1fd13d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ad3a91276411d8496eb16031125da315c55b8261799ee19403ff661b1fd13d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ad3a91276411d8496eb16031125da315c55b8261799ee19403ff661b1fd13d5", kill_on_drop: false }`
[INFO] [stdout] 9ad3a91276411d8496eb16031125da315c55b8261799ee19403ff661b1fd13d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f20465c08825d7b98d31d89f8c8a82dd0cfddd759dc5f1c1c697248efa9ba8c
[INFO] running `Command { std: "docker" "start" "-a" "7f20465c08825d7b98d31d89f8c8a82dd0cfddd759dc5f1c1c697248efa9ba8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling base64decode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:37:32
[INFO] [stdout]    |
[INFO] [stdout] 37 |     std::io::stdin().read_line(input).unwrap();
[INFO] [stdout]    |                                ^^^^^
[INFO] [stdout]    |                                |
[INFO] [stdout]    |                                expected `&mut String`, found struct `String`
[INFO] [stdout]    |                                help: consider mutably borrowing here: `&mut input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `base64decode` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "7f20465c08825d7b98d31d89f8c8a82dd0cfddd759dc5f1c1c697248efa9ba8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f20465c08825d7b98d31d89f8c8a82dd0cfddd759dc5f1c1c697248efa9ba8c", kill_on_drop: false }`
[INFO] [stdout] 7f20465c08825d7b98d31d89f8c8a82dd0cfddd759dc5f1c1c697248efa9ba8c