[INFO] cloning repository https://github.com/wqferr/rust-todo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wqferr/rust-todo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwqferr%2Frust-todo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwqferr%2Frust-todo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 09610fce67884065069eb6a2acd2f533b31f9cfc
[INFO] testing wqferr/rust-todo against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwqferr%2Frust-todo" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wqferr/rust-todo on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wqferr/rust-todo
[INFO] finished tweaking git repo https://github.com/wqferr/rust-todo
[INFO] tweaked toml for git repo https://github.com/wqferr/rust-todo written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/wqferr/rust-todo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4a9565e21e6ec8b83a8d14bc898642d11b72458f9f489014a4e362ab7cacc48
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f4a9565e21e6ec8b83a8d14bc898642d11b72458f9f489014a4e362ab7cacc48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4a9565e21e6ec8b83a8d14bc898642d11b72458f9f489014a4e362ab7cacc48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4a9565e21e6ec8b83a8d14bc898642d11b72458f9f489014a4e362ab7cacc48", kill_on_drop: false }`
[INFO] [stdout] f4a9565e21e6ec8b83a8d14bc898642d11b72458f9f489014a4e362ab7cacc48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 24270862bb6acf36b902475e1bed813b841c8c5b680974808624690b0308b10e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "24270862bb6acf36b902475e1bed813b841c8c5b680974808624690b0308b10e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-todo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find value `msg` in this scope
[INFO] [stdout]   --> src/main.rs:64:40
[INFO] [stdout]    |
[INFO] [stdout] 64 |                         println!("{}", msg);
[INFO] [stdout]    |                                        ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:63:25
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 match read_item() {
[INFO] [stdout]    |                       ----------- this expression has type `std::result::Result<Item, std::io::Error>`
[INFO] [stdout] 62 |                     Ok(it) => { items.push(it) },
[INFO] [stdout] 63 |                     Err(io::ErrorKind::InvalidInput) => {
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `std::io::Error`, found enum `ErrorKind`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:66:44
[INFO] [stdout]    |
[INFO] [stdout] 66 |                     Err(error) => { return error; }
[INFO] [stdout]    |                                            ^^^^^
[INFO] [stdout]    |                                            |
[INFO] [stdout]    |                                            expected enum `std::result::Result`, found struct `std::io::Error`
[INFO] [stdout]    |                                            help: try using a variant of the expected enum: `Err(error)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `std::result::Result<(), std::io::Error>`
[INFO] [stdout]             found struct `std::io::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0425.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-todo`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "24270862bb6acf36b902475e1bed813b841c8c5b680974808624690b0308b10e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24270862bb6acf36b902475e1bed813b841c8c5b680974808624690b0308b10e", kill_on_drop: false }`
[INFO] [stdout] 24270862bb6acf36b902475e1bed813b841c8c5b680974808624690b0308b10e