[INFO] updating cached repository gifnksm/gifos
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gifnksm/gifos
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gifnksm/gifos" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/gifnksm/gifos"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/gifnksm/gifos'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gifnksm/gifos" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/gifnksm/gifos"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/gifnksm/gifos'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3ccf59aa1485bc530ebe7ccd89b020821a653035
[INFO] sha for GitHub repo gifnksm/gifos: 3ccf59aa1485bc530ebe7ccd89b020821a653035
[INFO] validating manifest of gifnksm/gifos on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of gifnksm/gifos on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing gifnksm/gifos
[INFO] finished frobbing gifnksm/gifos
[INFO] frobbed toml for gifnksm/gifos written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/gifnksm/gifos/Cargo.toml
[INFO] started frobbing gifnksm/gifos
[INFO] finished frobbing gifnksm/gifos
[INFO] frobbed toml for gifnksm/gifos written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/gifnksm/gifos/Cargo.toml
[INFO] crate gifnksm/gifos already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on the registry index
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking gifnksm/gifos against try#99a7498759a22b5684caf798a98b7e90ad9d2443 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-1/try#99a7498759a22b5684caf798a98b7e90ad9d2443:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/gifnksm/gifos:/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" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] dd9b74e6e834173344d80e4c0f2451d329b0d7cb1d300906c7394578cdf6d489
[INFO] running `"docker" "start" "-a" "dd9b74e6e834173344d80e4c0f2451d329b0d7cb1d300906c7394578cdf6d489"`
[INFO] [stderr]    Compiling llvm-tools v0.1.1
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking zero v0.1.2
[INFO] [stderr]     Checking cpuio v0.2.0
[INFO] [stderr]     Checking spin v0.5.0
[INFO] [stderr]     Checking font8x8 v0.2.4
[INFO] [stderr]     Checking volatile v0.2.6
[INFO] [stderr]     Checking pc-keyboard v0.5.0
[INFO] [stderr]     Checking x86_64 v0.2.14
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking pic8259_simple v0.1.1
[INFO] [stderr]     Checking array-init v0.0.4
[INFO] [stderr]     Checking xmas-elf v0.6.2
[INFO] [stderr]    Compiling bootloader v0.5.2
[INFO] [stderr]    Compiling raw-cpuid v6.1.0
[INFO] [stderr]    Compiling skeptic v0.5.0
[INFO] [stderr]    Compiling fixedvec v0.2.3
[INFO] [stderr]     Checking uart_16550 v0.1.0
[INFO] [stderr]     Checking x86_64 v0.5.3
[INFO] [stderr]     Checking gifos v0.1.0 (/opt/crater/workdir)
[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: function is never used: `init_test_idt`
[INFO] [stderr]   --> src/bin/test-exception-double-fault-stack-overflow.rs:59:1
[INFO] [stderr]    |
[INFO] [stderr] 59 | fn init_test_idt() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Checking x86_64 v0.3.6
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.24s
[INFO] running `"docker" "inspect" "dd9b74e6e834173344d80e4c0f2451d329b0d7cb1d300906c7394578cdf6d489"`
[INFO] running `"docker" "rm" "-f" "dd9b74e6e834173344d80e4c0f2451d329b0d7cb1d300906c7394578cdf6d489"`
[INFO] [stdout] dd9b74e6e834173344d80e4c0f2451d329b0d7cb1d300906c7394578cdf6d489