[INFO] crate rpi-mailbox 0.1.0 is already in cache
[INFO] extracting crate rpi-mailbox 0.1.0 into work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/rpi-mailbox/0.1.0
[INFO] extracting crate rpi-mailbox 0.1.0 into work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/rpi-mailbox/0.1.0
[INFO] validating manifest of rpi-mailbox-0.1.0 on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rpi-mailbox-0.1.0 on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rpi-mailbox-0.1.0
[INFO] finished frobbing rpi-mailbox-0.1.0
[INFO] frobbed toml for rpi-mailbox-0.1.0 written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/rpi-mailbox/0.1.0/Cargo.toml
[INFO] started frobbing rpi-mailbox-0.1.0
[INFO] finished frobbing rpi-mailbox-0.1.0
[INFO] frobbed toml for rpi-mailbox-0.1.0 written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/rpi-mailbox/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking rpi-mailbox-0.1.0 against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-1/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/rpi-mailbox/0.1.0:/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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a488d25f341aa7382ee378c3f3dd50dd9ff1b2e4caadf40566966f872b8f6a8a
[INFO] running `"docker" "start" "-a" "a488d25f341aa7382ee378c3f3dd50dd9ff1b2e4caadf40566966f872b8f6a8a"`
[INFO] [stderr]     Checking rpi-mailbox v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `ioctl` is imported redundantly
[INFO] [stderr]   --> src/kernel.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 17 | / mod ioctl {
[INFO] [stderr] 18 | |     /// Derived from
[INFO] [stderr] 19 | |     /// https://github.com/raspberrypi/linux/blob/rpi-4.14.y/drivers/char/broadcom/vcio.c
[INFO] [stderr] 20 | |     const VCIO_IOC_MAGIC: u8 = 100;
[INFO] [stderr] ...  |
[INFO] [stderr] 26 | |     }
[INFO] [stderr] 27 | | }
[INFO] [stderr]    | |_- the item `ioctl` is already defined here
[INFO] [stderr] ...
[INFO] [stderr] 30 |       use self::ioctl;
[INFO] [stderr]    |           ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `ioctl` is imported redundantly
[INFO] [stderr]   --> src/kernel.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 17 | / mod ioctl {
[INFO] [stderr] 18 | |     /// Derived from
[INFO] [stderr] 19 | |     /// https://github.com/raspberrypi/linux/blob/rpi-4.14.y/drivers/char/broadcom/vcio.c
[INFO] [stderr] 20 | |     const VCIO_IOC_MAGIC: u8 = 100;
[INFO] [stderr] ...  |
[INFO] [stderr] 26 | |     }
[INFO] [stderr] 27 | | }
[INFO] [stderr]    | |_- the item `ioctl` is already defined here
[INFO] [stderr] ...
[INFO] [stderr] 30 |       use self::ioctl;
[INFO] [stderr]    |           ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:3:1
[INFO] [stderr]    |
[INFO] [stderr] 3  | / error_chain! {
[INFO] [stderr] 4  | |     foreign_links {
[INFO] [stderr] 5  | |         Nix(nix::Error);
[INFO] [stderr] 6  | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 28 | |     }
[INFO] [stderr] 29 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:3:1
[INFO] [stderr]    |
[INFO] [stderr] 3  | / error_chain! {
[INFO] [stderr] 4  | |     foreign_links {
[INFO] [stderr] 5  | |         Nix(nix::Error);
[INFO] [stderr] 6  | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 28 | |     }
[INFO] [stderr] 29 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.70s
[INFO] running `"docker" "inspect" "a488d25f341aa7382ee378c3f3dd50dd9ff1b2e4caadf40566966f872b8f6a8a"`
[INFO] running `"docker" "rm" "-f" "a488d25f341aa7382ee378c3f3dd50dd9ff1b2e4caadf40566966f872b8f6a8a"`
[INFO] [stdout] a488d25f341aa7382ee378c3f3dd50dd9ff1b2e4caadf40566966f872b8f6a8a