[INFO] cloning repository https://github.com/mayukh-chr/Meow-OS
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mayukh-chr/Meow-OS" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmayukh-chr%2FMeow-OS", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmayukh-chr%2FMeow-OS'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2ad1e7980ae6b248fe14c0876daf2f30ae9f8ff2
[INFO] testing mayukh-chr/Meow-OS against try#0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6 for pr-137122-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmayukh-chr%2FMeow-OS" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-5-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/mayukh-chr/Meow-OS
[INFO] finished tweaking git repo https://github.com/mayukh-chr/Meow-OS
[INFO] tweaked toml for git repo https://github.com/mayukh-chr/Meow-OS written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mayukh-chr/Meow-OS on toolchain 0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mayukh-chr/Meow-OS 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" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7bb740421fa8c7031acb33d828ad34c6368328144e9ffb99959a401f6d952cc3
[INFO] running `Command { std: "docker" "start" "-a" "7bb740421fa8c7031acb33d828ad34c6368328144e9ffb99959a401f6d952cc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bb740421fa8c7031acb33d828ad34c6368328144e9ffb99959a401f6d952cc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bb740421fa8c7031acb33d828ad34c6368328144e9ffb99959a401f6d952cc3", kill_on_drop: false }`
[INFO] [stdout] 7bb740421fa8c7031acb33d828ad34c6368328144e9ffb99959a401f6d952cc3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 576efe0d7ebbc947bd157c223b39484b409dff99a721322cc0f5def2420cbd67
[INFO] running `Command { std: "docker" "start" "-a" "576efe0d7ebbc947bd157c223b39484b409dff99a721322cc0f5def2420cbd67", kill_on_drop: false }`
[INFO] [stderr]    Compiling kernel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `panic_info_message` has been stable since 1.81.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(panic_info_message)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:111:12
[INFO] [stdout]     |
[INFO] [stdout] 111 |     if let Some(args) = panic_info.message() {
[INFO] [stdout]     |            ^^^^^^^^^^   -------------------- this expression has type `PanicMessage<'_>`
[INFO] [stdout]     |            |
[INFO] [stdout]     |            expected `PanicMessage<'_>`, found `Option<_>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `PanicMessage<'_>`
[INFO] [stdout]                  found enum `Option<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kernel` (bin "kernel") due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "576efe0d7ebbc947bd157c223b39484b409dff99a721322cc0f5def2420cbd67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "576efe0d7ebbc947bd157c223b39484b409dff99a721322cc0f5def2420cbd67", kill_on_drop: false }`
[INFO] [stdout] 576efe0d7ebbc947bd157c223b39484b409dff99a721322cc0f5def2420cbd67