[INFO] updating cached repository jannikkeye/rust-os
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jannikkeye/rust-os
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jannikkeye/rust-os" "work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/jannikkeye/rust-os"`
[INFO] [stderr] Cloning into 'work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/jannikkeye/rust-os'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jannikkeye/rust-os" "work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/jannikkeye/rust-os"`
[INFO] [stderr] Cloning into 'work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/jannikkeye/rust-os'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 57e7a7bae6aa9575974b16f67e6fb6df8d58c89c
[INFO] sha for GitHub repo jannikkeye/rust-os: 57e7a7bae6aa9575974b16f67e6fb6df8d58c89c
[INFO] validating manifest of jannikkeye/rust-os on toolchain master#1891bfa80364eead426517c68de6947b7692e2de
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jannikkeye/rust-os on toolchain try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jannikkeye/rust-os
[INFO] finished frobbing jannikkeye/rust-os
[INFO] frobbed toml for jannikkeye/rust-os written to work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/jannikkeye/rust-os/Cargo.toml
[INFO] started frobbing jannikkeye/rust-os
[INFO] finished frobbing jannikkeye/rust-os
[INFO] frobbed toml for jannikkeye/rust-os written to work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/jannikkeye/rust-os/Cargo.toml
[INFO] crate jannikkeye/rust-os already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jannikkeye/rust-os against try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a for pr-60261
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60261/worker-1/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/jannikkeye/rust-os:/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" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c578a219fe73a506a81c47d486003d92ac44fa842dc2dd522d53445524e101de
[INFO] running `"docker" "start" "-a" "c578a219fe73a506a81c47d486003d92ac44fa842dc2dd522d53445524e101de"`
[INFO] [stderr]     Checking uart_16550 v0.1.0
[INFO] [stderr]     Checking x86_64 v0.4.0
[INFO] [stderr]     Checking bootloader v0.3.12
[INFO] [stderr]     Checking blog_os v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `Box` is imported redundantly
[INFO] [stderr]    --> src/vga_buffer.rs:156:13
[INFO] [stderr]     |
[INFO] [stderr] 156 |         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 5.63s
[INFO] running `"docker" "inspect" "c578a219fe73a506a81c47d486003d92ac44fa842dc2dd522d53445524e101de"`
[INFO] running `"docker" "rm" "-f" "c578a219fe73a506a81c47d486003d92ac44fa842dc2dd522d53445524e101de"`
[INFO] [stdout] c578a219fe73a506a81c47d486003d92ac44fa842dc2dd522d53445524e101de