[INFO] cloning repository https://github.com/swixge/lr2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/swixge/lr2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswixge%2Flr2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswixge%2Flr2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6a840186903f69b5cff8747800de851a2c03b30c
[INFO] checking swixge/lr2 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswixge%2Flr2" "/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/swixge/lr2
[INFO] finished tweaking git repo https://github.com/swixge/lr2
[INFO] tweaked toml for git repo https://github.com/swixge/lr2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/swixge/lr2 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/swixge/lr2 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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0d904aaa55e0f839347577a3ab1646b8fd83936b824a8a84d4204ce6bbe3780
[INFO] running `Command { std: "docker" "start" "-a" "e0d904aaa55e0f839347577a3ab1646b8fd83936b824a8a84d4204ce6bbe3780", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0d904aaa55e0f839347577a3ab1646b8fd83936b824a8a84d4204ce6bbe3780", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0d904aaa55e0f839347577a3ab1646b8fd83936b824a8a84d4204ce6bbe3780", kill_on_drop: false }`
[INFO] [stdout] e0d904aaa55e0f839347577a3ab1646b8fd83936b824a8a84d4204ce6bbe3780
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d75130dc9aa0d03d7d7d6c3f5f5ad640deb2c0a81fde18f6b3dbae6cbf424fd
[INFO] running `Command { std: "docker" "start" "-a" "5d75130dc9aa0d03d7d7d6c3f5f5ad640deb2c0a81fde18f6b3dbae6cbf424fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling bootloader v0.9.23
[INFO] [stderr]     Checking unios v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `core::borrow::Borrow`
[INFO] [stdout]  --> src/vga_buf.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LIGHT_GREY` should have an upper camel case name
[INFO] [stdout]   --> src/vga_buf.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     LIGHT_GREY = 0x7,
[INFO] [stdout]    |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `LightGrey`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `DARK_GREY` should have an upper camel case name
[INFO] [stdout]   --> src/vga_buf.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     DARK_GREY = 0x8,
[INFO] [stdout]    |     ^^^^^^^^^ help: convert the identifier to upper camel case: `DarkGrey`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LIGHT_BLUE` should have an upper camel case name
[INFO] [stdout]   --> src/vga_buf.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     LIGHT_BLUE = 0x9,
[INFO] [stdout]    |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `LightBlue`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LIGHT_GREEN` should have an upper camel case name
[INFO] [stdout]   --> src/vga_buf.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     LIGHT_GREEN = 0xa,
[INFO] [stdout]    |     ^^^^^^^^^^^ help: convert the identifier to upper camel case: `LightGreen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LIGHT_AZURE` should have an upper camel case name
[INFO] [stdout]   --> src/vga_buf.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     LIGHT_AZURE = 0xb,
[INFO] [stdout]    |     ^^^^^^^^^^^ help: convert the identifier to upper camel case: `LightAzure`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LIGHT_RED` should have an upper camel case name
[INFO] [stdout]   --> src/vga_buf.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     LIGHT_RED = 0xc,
[INFO] [stdout]    |     ^^^^^^^^^ help: convert the identifier to upper camel case: `LightRed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::borrow::Borrow`
[INFO] [stdout]  --> src/vga_buf.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LIGHT_GREY` should have an upper camel case name
[INFO] [stdout]   --> src/vga_buf.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     LIGHT_GREY = 0x7,
[INFO] [stdout]    |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `LightGrey`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `DARK_GREY` should have an upper camel case name
[INFO] [stdout]   --> src/vga_buf.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     DARK_GREY = 0x8,
[INFO] [stdout]    |     ^^^^^^^^^ help: convert the identifier to upper camel case: `DarkGrey`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LIGHT_BLUE` should have an upper camel case name
[INFO] [stdout]   --> src/vga_buf.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     LIGHT_BLUE = 0x9,
[INFO] [stdout]    |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `LightBlue`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LIGHT_GREEN` should have an upper camel case name
[INFO] [stdout]   --> src/vga_buf.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     LIGHT_GREEN = 0xa,
[INFO] [stdout]    |     ^^^^^^^^^^^ help: convert the identifier to upper camel case: `LightGreen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LIGHT_AZURE` should have an upper camel case name
[INFO] [stdout]   --> src/vga_buf.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     LIGHT_AZURE = 0xb,
[INFO] [stdout]    |     ^^^^^^^^^^^ help: convert the identifier to upper camel case: `LightAzure`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LIGHT_RED` should have an upper camel case name
[INFO] [stdout]   --> src/vga_buf.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     LIGHT_RED = 0xc,
[INFO] [stdout]    |     ^^^^^^^^^ help: convert the identifier to upper camel case: `LightRed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/main.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | / fn panic(_info: &PanicInfo) -> ! {
[INFO] [stdout] 14 | |     loop {}
[INFO] [stdout] 15 | | }
[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/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-95d69415fb7e848a.rlib
[INFO] [stdout]    = note: second definition in the local crate (`unios`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/vga_buf.rs:108:17
[INFO] [stdout]     |
[INFO] [stdout] 108 |             for i in 0..align {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `unios` (bin "unios" test) due to 1 previous error; 7 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variants `Left` and `Right` are never constructed
[INFO] [stdout]   --> src/vga_buf.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum Alignment {
[INFO] [stdout]    |          --------- variants in this enum
[INFO] [stdout] 17 |     Left,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 18 |     Right,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/vga_buf.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub enum Color {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] 25 |     BLUE = 0x1,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 26 |     GREEN = 0x2,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 27 |     AZURE = 0x3,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 28 |     RED = 0x4,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 29 |     PURPLE = 0x5,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 30 |     BROWN = 0x6,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 31 |     LIGHT_GREY = 0x7,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 32 |     DARK_GREY = 0x8,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 33 |     LIGHT_BLUE = 0x9,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 34 |     LIGHT_GREEN = 0xa,
[INFO] [stdout] 35 |     LIGHT_AZURE = 0xb,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 36 |     LIGHT_RED = 0xc,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 37 |     PINK = 0xd,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 38 |     YELLOW = 0xe,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 39 |     WHITE = 0xf
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `read_char` is never used
[INFO] [stdout]   --> src/vga_buf.rs:86:12
[INFO] [stdout]    |
[INFO] [stdout] 61 | impl Screen {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 86 |     pub fn read_char(&self, offset: u32) -> AsciiChar {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         write!(screen, "Number {}\n", i);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let _ = write!(screen, "Number {}\n", i);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5d75130dc9aa0d03d7d7d6c3f5f5ad640deb2c0a81fde18f6b3dbae6cbf424fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d75130dc9aa0d03d7d7d6c3f5f5ad640deb2c0a81fde18f6b3dbae6cbf424fd", kill_on_drop: false }`
[INFO] [stdout] 5d75130dc9aa0d03d7d7d6c3f5f5ad640deb2c0a81fde18f6b3dbae6cbf424fd