[INFO] cloning repository https://github.com/lucascompython/crit_os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lucascompython/crit_os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucascompython%2Fcrit_os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucascompython%2Fcrit_os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 428b22bc5b42e5ff32027c744d9100eec03b30cd
[INFO] checking lucascompython/crit_os against master#5a45ab9738330fb317d49e3594c2db5248b1e971 for pr-136303
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucascompython%2Fcrit_os" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lucascompython/crit_os on toolchain 5a45ab9738330fb317d49e3594c2db5248b1e971
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-4-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/lucascompython/crit_os
[INFO] finished tweaking git repo https://github.com/lucascompython/crit_os
[INFO] tweaked toml for git repo https://github.com/lucascompython/crit_os written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/lucascompython/crit_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" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 681688f949d5fd63e713bd934d009594d2bc01d85e5b28aa7d434b3486e3ea7e
[INFO] running `Command { std: "docker" "start" "-a" "681688f949d5fd63e713bd934d009594d2bc01d85e5b28aa7d434b3486e3ea7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "681688f949d5fd63e713bd934d009594d2bc01d85e5b28aa7d434b3486e3ea7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "681688f949d5fd63e713bd934d009594d2bc01d85e5b28aa7d434b3486e3ea7e", kill_on_drop: false }`
[INFO] [stdout] 681688f949d5fd63e713bd934d009594d2bc01d85e5b28aa7d434b3486e3ea7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 713e53d930e2228d2b893625ba698a743ba3d95103289ecccaf9009f65ec1d02
[INFO] running `Command { std: "docker" "start" "-a" "713e53d930e2228d2b893625ba698a743ba3d95103289ecccaf9009f65ec1d02", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling bootloader v0.9.23
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking volatile v0.2.7
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking crit_os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/vga_buffer.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum Color {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] 16 |     Black = 0,
[INFO] [stdout] 17 |     Blue = 1,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 18 |     Green = 2,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 19 |     Cyan = 3,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 20 |     Red = 4,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 21 |     Magenta = 5,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 22 |     Brown = 6,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 23 |     LightGray = 7,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 24 |     DarkGray = 8,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 25 |     LightBlue = 9,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 26 |     LightGreen = 10,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 27 |     LightCyan = 11,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 28 |     LightRed = 12,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 29 |     Pink = 13,
[INFO] [stdout] 30 |     Yellow = 14,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 31 |     White = 15,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/main.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | / fn panic(info: &PanicInfo) -> ! {
[INFO] [stdout] 17 | |     println!("{}", info);
[INFO] [stdout] 18 | |     loop {}
[INFO] [stdout] 19 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the lang item is first defined in crate `std` (which `test` depends on)
[INFO] [stdout]    = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/5a45ab9738330fb317d49e3594c2db5248b1e971/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-54c13a3455b13793.rlib
[INFO] [stdout]    = note: second definition in the local crate (`crit_os`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `crit_os` (bin "crit_os" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "713e53d930e2228d2b893625ba698a743ba3d95103289ecccaf9009f65ec1d02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "713e53d930e2228d2b893625ba698a743ba3d95103289ecccaf9009f65ec1d02", kill_on_drop: false }`
[INFO] [stdout] 713e53d930e2228d2b893625ba698a743ba3d95103289ecccaf9009f65ec1d02
