[INFO] cloning repository https://github.com/rcdf44/rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rcdf44/rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frcdf44%2Frust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frcdf44%2Frust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7665f65860bddffd5265cd1dd96df9ad85c57760
[INFO] building rcdf44/rust against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frcdf44%2Frust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rcdf44/rust
[INFO] finished tweaking git repo https://github.com/rcdf44/rust
[INFO] tweaked toml for git repo https://github.com/rcdf44/rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rcdf44/rust on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rcdf44/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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b471343883e98d02cffeac07be14730e1996a6338f0a4a85463e96544fd540fe
[INFO] running `Command { std: "docker" "start" "-a" "b471343883e98d02cffeac07be14730e1996a6338f0a4a85463e96544fd540fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b471343883e98d02cffeac07be14730e1996a6338f0a4a85463e96544fd540fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b471343883e98d02cffeac07be14730e1996a6338f0a4a85463e96544fd540fe", kill_on_drop: false }`
[INFO] [stdout] b471343883e98d02cffeac07be14730e1996a6338f0a4a85463e96544fd540fe
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6c432805020439761ae01a347ea678572986a1657a5954d8d8398d2db69a36e
[INFO] running `Command { std: "docker" "start" "-a" "e6c432805020439761ae01a347ea678572986a1657a5954d8d8398d2db69a36e", kill_on_drop: false }`
[INFO] [stderr]    Compiling practica v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:40:42
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let data: u32 = if b > 20 {10} else {b};
[INFO] [stdout]    |                                          ^ expected `u32`, found `i32`
[INFO] [stdout]    |
[INFO] [stdout] help: you can convert an `i32` to a `u32` and panic if the converted value doesn't fit
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let data: u32 = if b > 20 {10} else {b.try_into().unwrap()};
[INFO] [stdout]    |                                           ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `practica` (bin "practica") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "e6c432805020439761ae01a347ea678572986a1657a5954d8d8398d2db69a36e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6c432805020439761ae01a347ea678572986a1657a5954d8d8398d2db69a36e", kill_on_drop: false }`
[INFO] [stdout] e6c432805020439761ae01a347ea678572986a1657a5954d8d8398d2db69a36e