[INFO] updating cached repository https://github.com/Christophorus3/c_os
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e0684c540f940dfc1c441315aaf30bb695c8a69c
[INFO] checking Christophorus3/c_os against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FChristophorus3%2Fc_os" "work/builds/worker-6/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Christophorus3/c_os on toolchain c9edc02e8320a9e5799d185910ece7d491f524e6-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Christophorus3/c_os
[INFO] finished tweaking git repo https://github.com/Christophorus3/c_os
[INFO] tweaked toml for git repo https://github.com/Christophorus3/c_os written to work/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Christophorus3/c_os already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0365d3d9602d1ce5be9b3781795baf72543e041f2a38c286c648f0a9bcf123b4
[INFO] running `"docker" "start" "-a" "0365d3d9602d1ce5be9b3781795baf72543e041f2a38c286c648f0a9bcf123b4"`
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking ux v0.1.3
[INFO] [stderr]     Checking zero v0.1.2
[INFO] [stderr]     Checking font8x8 v0.2.4
[INFO] [stderr]     Checking spin v0.5.0
[INFO] [stderr]     Checking spin v0.4.10
[INFO] [stderr]     Checking volatile v0.2.6
[INFO] [stderr]    Compiling getopts v0.2.18
[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 v1.3.0
[INFO] [stderr]    Compiling pulldown-cmark v0.0.3
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling raw-cpuid v6.1.0
[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 v0.3.6
[INFO] [stderr]     Checking x86_64 v0.2.14
[INFO] [stderr]     Checking x86_64 v0.5.3
[INFO] [stderr]     Checking bootloader v0.4.0
[INFO] [stderr]     Checking uart_16550 v0.1.0
[INFO] [stderr]     Checking c_os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/vga_buffer.rs:71:21
[INFO] [stderr]    |
[INFO] [stderr] 71 |                 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:71:21
[INFO] [stderr]    |
[INFO] [stderr] 71 |                 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:71:21
[INFO] [stderr]    |
[INFO] [stderr] 71 |                 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:155:13
[INFO] [stderr]     |
[INFO] [stderr] 155 |         use std::boxed::Box;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 05s
[INFO] running `"docker" "inspect" "0365d3d9602d1ce5be9b3781795baf72543e041f2a38c286c648f0a9bcf123b4"`
[INFO] running `"docker" "rm" "-f" "0365d3d9602d1ce5be9b3781795baf72543e041f2a38c286c648f0a9bcf123b4"`
[INFO] [stdout] 0365d3d9602d1ce5be9b3781795baf72543e041f2a38c286c648f0a9bcf123b4