[INFO] updating cached repository https://github.com/mpajkowski/micecoreos
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] a1b30500bf683764ce1a603d33226b9806fdecf8
[INFO] checking mpajkowski/micecoreos against master#bd0bacc694d7d8175804bb6f690cb846bfa4a9ee for pr-71665
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmpajkowski%2Fmicecoreos" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mpajkowski/micecoreos on toolchain bd0bacc694d7d8175804bb6f690cb846bfa4a9ee
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/mpajkowski/micecoreos
[INFO] finished tweaking git repo https://github.com/mpajkowski/micecoreos
[INFO] tweaked toml for git repo https://github.com/mpajkowski/micecoreos written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/mpajkowski/micecoreos already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b4281224b2a80f508b59b7364bbb2d10878eeb0c9b4cf2bcd26a32e04b2b66ec
[INFO] running `"docker" "start" "-a" "b4281224b2a80f508b59b7364bbb2d10878eeb0c9b4cf2bcd26a32e04b2b66ec"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking usize_conversions v0.2.0
[INFO] [stderr]     Checking ux v0.1.2
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking bit_field v0.9.0
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking cpuio v0.2.0
[INFO] [stderr]     Checking pc-keyboard v0.3.1
[INFO] [stderr]     Checking pic8259_simple v0.1.1
[INFO] [stderr]     Checking array-init v0.0.4
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking x86_64 v0.2.11
[INFO] [stderr]     Checking x86_64 v0.3.4
[INFO] [stderr]     Checking uart_16550 v0.1.0
[INFO] [stderr]     Checking micecoreos v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/vga.rs:112:21
[INFO] [stderr]     |
[INFO] [stderr] 112 |                 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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/vga.rs:112:21
[INFO] [stderr]     |
[INFO] [stderr] 112 |                 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.rs:112:21
[INFO] [stderr]     |
[INFO] [stderr] 112 |                 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: unused import: `super::*`
[INFO] [stderr]    --> src/vga.rs:207:9
[INFO] [stderr]     |
[INFO] [stderr] 207 |     use super::*;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `core::panic::PanicInfo`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use core::panic::PanicInfo;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `print`, `println`
[INFO] [stderr]  --> src/main.rs:9:18
[INFO] [stderr]   |
[INFO] [stderr] 9 | use micecoreos::{print, println};
[INFO] [stderr]   |                  ^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.41s
[INFO] running `"docker" "inspect" "b4281224b2a80f508b59b7364bbb2d10878eeb0c9b4cf2bcd26a32e04b2b66ec"`
[INFO] running `"docker" "rm" "-f" "b4281224b2a80f508b59b7364bbb2d10878eeb0c9b4cf2bcd26a32e04b2b66ec"`
[INFO] [stdout] b4281224b2a80f508b59b7364bbb2d10878eeb0c9b4cf2bcd26a32e04b2b66ec