[INFO] cloning repository https://github.com/sharms/advent-of-code-2020-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sharms/advent-of-code-2020-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsharms%2Fadvent-of-code-2020-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsharms%2Fadvent-of-code-2020-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f1b925a6b9e322c39e48147f0e2a6d6a9a96bbd7
[INFO] testing sharms/advent-of-code-2020-rs against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsharms%2Fadvent-of-code-2020-rs" "/workspace/builds/worker-50/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-50/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sharms/advent-of-code-2020-rs on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sharms/advent-of-code-2020-rs
[INFO] finished tweaking git repo https://github.com/sharms/advent-of-code-2020-rs
[INFO] tweaked toml for git repo https://github.com/sharms/advent-of-code-2020-rs written to /workspace/builds/worker-50/source/Cargo.toml
[INFO] crate git repo https://github.com/sharms/advent-of-code-2020-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6aed6744489047789fdab1efb8107b25b0ddf9a1e6d622079273cb83f13035c1
[INFO] running `Command { std: "docker" "start" "-a" "6aed6744489047789fdab1efb8107b25b0ddf9a1e6d622079273cb83f13035c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6aed6744489047789fdab1efb8107b25b0ddf9a1e6d622079273cb83f13035c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6aed6744489047789fdab1efb8107b25b0ddf9a1e6d622079273cb83f13035c1", kill_on_drop: false }`
[INFO] [stdout] 6aed6744489047789fdab1efb8107b25b0ddf9a1e6d622079273cb83f13035c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 679359ba116fc6b2507af30ca24d091e9d2ac99d390c8a2ad0300d81b8c11c40
[INFO] running `Command { std: "docker" "start" "-a" "679359ba116fc6b2507af30ca24d091e9d2ac99d390c8a2ad0300d81b8c11c40", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling part1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `ErrorKind`, `Write`
[INFO] [stdout]  --> src/main.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{Write, BufReader, BufRead, Error, ErrorKind};
[INFO] [stdout]   |               ^^^^^                             ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error to `std::io::Error`
[INFO] [stdout]  --> src/main.rs:9:77
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let v: Vec<i64> = buffer.lines().map(|l| l.and_then(|v| v.parse::<i64>()?)).collect()?;
[INFO] [stdout]   |                                                                             ^ the trait `From<ParseIntError>` is not implemented for `std::io::Error`
[INFO] [stdout]   |
[INFO] [stdout]   = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]   = help: the following implementations were found:
[INFO] [stdout]             <std::io::Error as From<ErrorKind>>
[INFO] [stdout]             <std::io::Error as From<IntoInnerError<W>>>
[INFO] [stdout]             <std::io::Error as From<NulError>>
[INFO] [stdout]   = note: required because of the requirements on the impl of `FromResidual<Result<Infallible, ParseIntError>>` for `Result<_, std::io::Error>`
[INFO] [stdout]   = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: try expression alternatives have incompatible types
[INFO] [stdout]  --> src/main.rs:9:61
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let v: Vec<i64> = buffer.lines().map(|l| l.and_then(|v| v.parse::<i64>()?)).collect()?;
[INFO] [stdout]   |                                                             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |                                                             |
[INFO] [stdout]   |                                                             expected enum `Result`, found `i64`
[INFO] [stdout]   |                                                             help: try using a variant of the expected enum: `Ok(v.parse::<i64>()?)`
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected enum `Result<_, std::io::Error>`
[INFO] [stdout]              found type `i64`
[INFO] [stdout] note: return type inferred to be `Result<_, std::io::Error>` here
[INFO] [stdout]  --> src/main.rs:9:61
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let v: Vec<i64> = buffer.lines().map(|l| l.and_then(|v| v.parse::<i64>()?)).collect()?;
[INFO] [stdout]   |                                                             ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `part1`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "679359ba116fc6b2507af30ca24d091e9d2ac99d390c8a2ad0300d81b8c11c40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "679359ba116fc6b2507af30ca24d091e9d2ac99d390c8a2ad0300d81b8c11c40", kill_on_drop: false }`
[INFO] [stdout] 679359ba116fc6b2507af30ca24d091e9d2ac99d390c8a2ad0300d81b8c11c40
