[INFO] crate rustbreak 2.0.0-rc3 is already in cache
[INFO] extracting crate rustbreak 2.0.0-rc3 into work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/rustbreak/2.0.0-rc3
[INFO] extracting crate rustbreak 2.0.0-rc3 into work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/rustbreak/2.0.0-rc3
[INFO] validating manifest of rustbreak-2.0.0-rc3 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 rustbreak-2.0.0-rc3 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 rustbreak-2.0.0-rc3
[INFO] finished frobbing rustbreak-2.0.0-rc3
[INFO] frobbed toml for rustbreak-2.0.0-rc3 written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/rustbreak/2.0.0-rc3/Cargo.toml
[INFO] started frobbing rustbreak-2.0.0-rc3
[INFO] finished frobbing rustbreak-2.0.0-rc3
[INFO] frobbed toml for rustbreak-2.0.0-rc3 written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/rustbreak/2.0.0-rc3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 rustbreak-2.0.0-rc3 against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-5/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/rustbreak/2.0.0-rc3:/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] b9e9bcc758144b2c1ba2ffcbd251b3b382fcad7af98ba438a0177d460d07975f
[INFO] running `"docker" "start" "-a" "b9e9bcc758144b2c1ba2ffcbd251b3b382fcad7af98ba438a0177d460d07975f"`
[INFO] [stderr]     Checking rustbreak v2.0.0-rc3 (/opt/crater/workdir)
[INFO] [stderr] error: unused `#[macro_use]` import
[INFO] [stderr]    --> src/lib.rs:186:1
[INFO] [stderr]     |
[INFO] [stderr] 186 | #[macro_use] extern crate failure;
[INFO] [stderr]     | ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/lib.rs:16:5
[INFO] [stderr]     |
[INFO] [stderr] 16  |     unused_imports,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:42:32
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn cause(&self) -> Option<&Fail> {
[INFO] [stderr]    |                                ^^^^ help: use `dyn`: `dyn Fail`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rustbreak`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: unused `#[macro_use]` import
[INFO] [stderr]    --> src/lib.rs:186:1
[INFO] [stderr]     |
[INFO] [stderr] 186 | #[macro_use] extern crate failure;
[INFO] [stderr]     | ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/lib.rs:16:5
[INFO] [stderr]     |
[INFO] [stderr] 16  |     unused_imports,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:42:32
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn cause(&self) -> Option<&Fail> {
[INFO] [stderr]    |                                ^^^^ help: use `dyn`: `dyn Fail`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rustbreak`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b9e9bcc758144b2c1ba2ffcbd251b3b382fcad7af98ba438a0177d460d07975f"`
[INFO] running `"docker" "rm" "-f" "b9e9bcc758144b2c1ba2ffcbd251b3b382fcad7af98ba438a0177d460d07975f"`
[INFO] [stdout] b9e9bcc758144b2c1ba2ffcbd251b3b382fcad7af98ba438a0177d460d07975f