[INFO] updating cached repository manmetplok/katla
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/manmetplok/katla
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/manmetplok/katla" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/manmetplok/katla"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/manmetplok/katla'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/manmetplok/katla" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/manmetplok/katla"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/manmetplok/katla'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5b707e15fcfb76afce21bab5b6496a5a27ccde89
[INFO] sha for GitHub repo manmetplok/katla: 5b707e15fcfb76afce21bab5b6496a5a27ccde89
[INFO] validating manifest of manmetplok/katla on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of manmetplok/katla on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing manmetplok/katla
[INFO] finished frobbing manmetplok/katla
[INFO] frobbed toml for manmetplok/katla written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/manmetplok/katla/Cargo.toml
[INFO] started frobbing manmetplok/katla
[INFO] finished frobbing manmetplok/katla
[INFO] frobbed toml for manmetplok/katla written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/manmetplok/katla/Cargo.toml
[INFO] crate manmetplok/katla already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking manmetplok/katla against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-7/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/manmetplok/katla:/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" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c3b2c4b43ecfded7995a119e04925048257597834cddfc323960dd1908540fd6
[INFO] running `"docker" "start" "-a" "c3b2c4b43ecfded7995a119e04925048257597834cddfc323960dd1908540fd6"`
[INFO] [stderr]    Compiling bitflags v1.0.3
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]     Checking downcast-rs v1.0.1
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]     Checking bytes v0.4.7
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking wayland-sys v0.20.5
[INFO] [stderr]     Checking wayland-commons v0.20.5
[INFO] [stderr]    Compiling wayland-scanner v0.20.5
[INFO] [stderr]    Compiling wayland-server v0.20.5
[INFO] [stderr]     Checking katla v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `OsStr`
[INFO] [stderr]  --> src/server.rs:2:16
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::ffi::{OsStr, OsString};
[INFO] [stderr]   |                ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `thread`, `time`
[INFO] [stderr]  --> src/main.rs:3:11
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::{thread, time};
[INFO] [stderr]   |           ^^^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `OsStr`
[INFO] [stderr]  --> src/server.rs:2:16
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::ffi::{OsStr, OsString};
[INFO] [stderr]   |                ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `thread`, `time`
[INFO] [stderr]  --> src/main.rs:3:11
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::{thread, time};
[INFO] [stderr]   |           ^^^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:8:5
[INFO] [stderr]    |
[INFO] [stderr] 8  | /     server
[INFO] [stderr] 9  | |         .event_loop
[INFO] [stderr] 10 | |         .run();
[INFO] [stderr]    | |_______________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:8:5
[INFO] [stderr]    |
[INFO] [stderr] 8  | /     server
[INFO] [stderr] 9  | |         .event_loop
[INFO] [stderr] 10 | |         .run();
[INFO] [stderr]    | |_______________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.13s
[INFO] running `"docker" "inspect" "c3b2c4b43ecfded7995a119e04925048257597834cddfc323960dd1908540fd6"`
[INFO] running `"docker" "rm" "-f" "c3b2c4b43ecfded7995a119e04925048257597834cddfc323960dd1908540fd6"`
[INFO] [stdout] c3b2c4b43ecfded7995a119e04925048257597834cddfc323960dd1908540fd6