[INFO] cloning repository gifnksm/gifos
[INFO] running `"git" "clone" "--bare" "git://github.com/gifnksm/gifos.git" "work/cache/sources/gh/gifnksm/gifos"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/gifnksm/gifos'...
[INFO] running `"git" "clone" "work/cache/sources/gh/gifnksm/gifos" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/gifnksm/gifos"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/gifnksm/gifos'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gifnksm/gifos" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/gifnksm/gifos"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/gifnksm/gifos'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6422ba7a53fe9a56ecb05d1c307465e744507685
[INFO] sha for GitHub repo gifnksm/gifos: 6422ba7a53fe9a56ecb05d1c307465e744507685
[INFO] validating manifest of gifnksm/gifos on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of gifnksm/gifos on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-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-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/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-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/gifnksm/gifos/Cargo.toml
[INFO] crate gifnksm/gifos already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking gifnksm/gifos against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-4/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/gifnksm/gifos:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 43cab034c688e0c36735ba9f89ae66a36a5fc7d7f20f4a7a209d31800371eb96
[INFO] running `"docker" "start" "-a" "43cab034c688e0c36735ba9f89ae66a36a5fc7d7f20f4a7a209d31800371eb96"`
[INFO] [stderr]     Checking pc-keyboard v0.5.0
[INFO] [stderr]     Checking volatile v0.2.6
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking x86_64 v0.3.6
[INFO] [stderr]     Checking raw-cpuid v6.1.0
[INFO] [stderr]     Checking fixedvec v0.2.3
[INFO] [stderr]     Checking gifos v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Checking x86_64 v0.5.4
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/vga_buffer.rs:113:21
[INFO] [stderr]     |
[INFO] [stderr] 113 |                 0x20...0x7e | b'\n' => self.write_byte(byte),
[INFO] [stderr]     |                     ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(ellipsis_inclusive_range_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/vga_buffer.rs:113:21
[INFO] [stderr]     |
[INFO] [stderr] 113 |                 0x20...0x7e | b'\n' => self.write_byte(byte),
[INFO] [stderr]     |                     ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(ellipsis_inclusive_range_patterns)] 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]     Checking bootloader v0.5.3
[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 uart_16550 v0.2.0
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/vga_buffer.rs:113:21
[INFO] [stderr]     |
[INFO] [stderr] 113 |                 0x20...0x7e | b'\n' => self.write_byte(byte),
[INFO] [stderr]     |                     ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(ellipsis_inclusive_range_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.88s
[INFO] running `"docker" "inspect" "43cab034c688e0c36735ba9f89ae66a36a5fc7d7f20f4a7a209d31800371eb96"`
[INFO] running `"docker" "rm" "-f" "43cab034c688e0c36735ba9f89ae66a36a5fc7d7f20f4a7a209d31800371eb96"`
[INFO] [stdout] 43cab034c688e0c36735ba9f89ae66a36a5fc7d7f20f4a7a209d31800371eb96