[INFO] updating cached repository sidebog7/rustos
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sidebog7/rustos
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sidebog7/rustos" "work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/sidebog7/rustos"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/sidebog7/rustos'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sidebog7/rustos" "work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/sidebog7/rustos"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/sidebog7/rustos'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 66bdc1ddf9fd5a78835cf573c9d653549f60ad43
[INFO] sha for GitHub repo sidebog7/rustos: 66bdc1ddf9fd5a78835cf573c9d653549f60ad43
[INFO] validating manifest of sidebog7/rustos on toolchain master#efe2f32a6b8217425f361ec7c206910c611c03ee
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sidebog7/rustos on toolchain try#78b0bd8441ef961f6475e3d47fe3bca38cb83432
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing sidebog7/rustos
[INFO] finished frobbing sidebog7/rustos
[INFO] frobbed toml for sidebog7/rustos written to work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/sidebog7/rustos/Cargo.toml
[INFO] started frobbing sidebog7/rustos
[INFO] finished frobbing sidebog7/rustos
[INFO] frobbed toml for sidebog7/rustos written to work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/sidebog7/rustos/Cargo.toml
[INFO] crate sidebog7/rustos already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking sidebog7/rustos against master#efe2f32a6b8217425f361ec7c206910c611c03ee for pr-60039
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039/worker-3/master#efe2f32a6b8217425f361ec7c206910c611c03ee:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/sidebog7/rustos:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 9f125dd096545165e830a10f2b02701500521da0b2bbfeb368c8e6ad5256a2e7
[INFO] running `"docker" "start" "-a" "9f125dd096545165e830a10f2b02701500521da0b2bbfeb368c8e6ad5256a2e7"`
[INFO] [stderr]     Checking ux v0.1.3
[INFO] [stderr]     Checking zero v0.1.2
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking spin v0.4.10
[INFO] [stderr]     Checking font8x8 v0.2.4
[INFO] [stderr]     Checking pc-keyboard v0.3.1
[INFO] [stderr]     Checking volatile v0.2.5
[INFO] [stderr]     Checking array-init v0.0.4
[INFO] [stderr]     Checking array-init v0.0.3
[INFO] [stderr]     Checking xmas-elf v0.6.2
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]    Compiling libc v0.2.47
[INFO] [stderr]    Compiling rand v0.4.5
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling skeptic v0.5.0
[INFO] [stderr]    Compiling fixedvec v0.2.3
[INFO] [stderr]     Checking x86_64 v0.2.14
[INFO] [stderr]     Checking x86_64 v0.4.0
[INFO] [stderr]     Checking uart_16550 v0.1.0
[INFO] [stderr]     Checking bootloader v0.3.12
[INFO] [stderr]     Checking rustos v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `hlt_loop` is imported redundantly
[INFO] [stderr]   --> src/interrupts.rs:85:9
[INFO] [stderr]    |
[INFO] [stderr] 5  | use crate::{gdt, hlt_loop};
[INFO] [stderr]    |                  -------- the item `hlt_loop` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 85 |     use crate::hlt_loop;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Box` is imported redundantly
[INFO] [stderr]    --> src/vga_buffer.rs:154:13
[INFO] [stderr]     |
[INFO] [stderr] 154 |         use std::boxed::Box;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `hlt_loop` is imported redundantly
[INFO] [stderr]   --> src/interrupts.rs:85:9
[INFO] [stderr]    |
[INFO] [stderr] 5  | use crate::{gdt, hlt_loop};
[INFO] [stderr]    |                  -------- the item `hlt_loop` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 85 |     use crate::hlt_loop;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `hlt_loop` is imported redundantly
[INFO] [stderr]   --> src/interrupts.rs:85:9
[INFO] [stderr]    |
[INFO] [stderr] 5  | use crate::{gdt, hlt_loop};
[INFO] [stderr]    |                  -------- the item `hlt_loop` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 85 |     use crate::hlt_loop;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.20s
[INFO] running `"docker" "inspect" "9f125dd096545165e830a10f2b02701500521da0b2bbfeb368c8e6ad5256a2e7"`
[INFO] running `"docker" "rm" "-f" "9f125dd096545165e830a10f2b02701500521da0b2bbfeb368c8e6ad5256a2e7"`
[INFO] [stdout] 9f125dd096545165e830a10f2b02701500521da0b2bbfeb368c8e6ad5256a2e7