[INFO] cloning repository https://github.com/h4shcore/toast
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/h4shcore/toast" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fh4shcore%2Ftoast", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fh4shcore%2Ftoast'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cfcd1743fd6dc48c8011503aebb11647b5d8c412
[INFO] checking h4shcore/toast against try#d8be25549d5418405531341b4be6d8538fc3c42e for pr-156160
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fh4shcore%2Ftoast" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-0-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/h4shcore/toast
[INFO] finished tweaking git repo https://github.com/h4shcore/toast
[INFO] tweaked toml for git repo https://github.com/h4shcore/toast written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/h4shcore/toast on toolchain d8be25549d5418405531341b4be6d8538fc3c42e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d8be25549d5418405531341b4be6d8538fc3c42e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/h4shcore/toast 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" "+d8be25549d5418405531341b4be6d8538fc3c42e" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking h4shcore/toast against try#d8be25549d5418405531341b4be6d8538fc3c42e for pr-156160
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fh4shcore%2Ftoast" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-0-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/h4shcore/toast
[INFO] finished tweaking git repo https://github.com/h4shcore/toast
[INFO] tweaked toml for git repo https://github.com/h4shcore/toast written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/h4shcore/toast on toolchain d8be25549d5418405531341b4be6d8538fc3c42e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d8be25549d5418405531341b4be6d8538fc3c42e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/h4shcore/toast 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" "+d8be25549d5418405531341b4be6d8538fc3c42e" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bootloader v0.9.34
[INFO] [stderr]   Downloaded x86_64 v0.14.13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] dedd94e6044769c0ea268804d34e763ece85971c5edd46d215e57da755077c08
[INFO] running `Command { std: "docker" "start" "dedd94e6044769c0ea268804d34e763ece85971c5edd46d215e57da755077c08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "dedd94e6044769c0ea268804d34e763ece85971c5edd46d215e57da755077c08" "/opt/rustwide/cargo-home/bin/cargo" "+d8be25549d5418405531341b4be6d8538fc3c42e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dedd94e6044769c0ea268804d34e763ece85971c5edd46d215e57da755077c08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "dedd94e6044769c0ea268804d34e763ece85971c5edd46d215e57da755077c08" "/opt/rustwide/cargo-home/bin/cargo" "+d8be25549d5418405531341b4be6d8538fc3c42e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling bootloader v0.9.34
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking bit_field v0.10.3
[INFO] [stderr]     Checking volatile v0.4.6
[INFO] [stderr]     Checking bitflags v2.11.0
[INFO] [stderr]     Checking volatile v0.2.7
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking x86_64 v0.14.13
[INFO] [stderr]     Checking toast v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `ColorCode` is never constructed
[INFO] [stdout]   --> src/vga_buffer.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | struct ColorCode(u8);
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/vga_buffer.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | impl ColorCode {
[INFO] [stdout]    | -------------- associated function in this implementation
[INFO] [stdout] 46 |     /// Create a new `ColorCode` with the given foreground and background colors.
[INFO] [stdout] 47 |     fn new(foreground: Color, background: Color) -> ColorCode {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ScreenChar` is never constructed
[INFO] [stdout]   --> src/vga_buffer.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | struct ScreenChar {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BUFFER_HEIGHT` is never used
[INFO] [stdout]   --> src/vga_buffer.rs:61:7
[INFO] [stdout]    |
[INFO] [stdout] 61 | const BUFFER_HEIGHT: usize = 25;
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BUFFER_WIDTH` is never used
[INFO] [stdout]   --> src/vga_buffer.rs:63:7
[INFO] [stdout]    |
[INFO] [stdout] 63 | const BUFFER_WIDTH: usize = 80;
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Buffer` is never constructed
[INFO] [stdout]   --> src/vga_buffer.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | struct Buffer {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Writer` is never constructed
[INFO] [stdout]   --> src/vga_buffer.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub struct Writer {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `write_byte`, `write_string`, `new_line`, and `clear_row` are never used
[INFO] [stdout]    --> src/vga_buffer.rs:85:12
[INFO] [stdout]     |
[INFO] [stdout]  81 | impl Writer {
[INFO] [stdout]     | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  85 |     pub fn write_byte(&mut self, byte: u8) {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 111 |     fn write_string(&mut self, s: &str) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 123 |     fn new_line(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 135 |     fn clear_row(&mut self, row: usize) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.15s
[INFO] running `Command { std: "docker" "inspect" "dedd94e6044769c0ea268804d34e763ece85971c5edd46d215e57da755077c08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dedd94e6044769c0ea268804d34e763ece85971c5edd46d215e57da755077c08", kill_on_drop: false }`
[INFO] [stdout] dedd94e6044769c0ea268804d34e763ece85971c5edd46d215e57da755077c08
