[INFO] updating cached repository pineapplehunter/fractions
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/pineapplehunter/fractions
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/pineapplehunter/fractions" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/pineapplehunter/fractions"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/pineapplehunter/fractions'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/pineapplehunter/fractions" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/pineapplehunter/fractions"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/pineapplehunter/fractions'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2682a01a6b053edf5f509c7b57edff333b318c3b
[INFO] sha for GitHub repo pineapplehunter/fractions: 2682a01a6b053edf5f509c7b57edff333b318c3b
[INFO] validating manifest of pineapplehunter/fractions 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 pineapplehunter/fractions 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 pineapplehunter/fractions
[INFO] finished frobbing pineapplehunter/fractions
[INFO] frobbed toml for pineapplehunter/fractions written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/pineapplehunter/fractions/Cargo.toml
[INFO] started frobbing pineapplehunter/fractions
[INFO] finished frobbing pineapplehunter/fractions
[INFO] frobbed toml for pineapplehunter/fractions written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/pineapplehunter/fractions/Cargo.toml
[INFO] crate pineapplehunter/fractions 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking pineapplehunter/fractions against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-0/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/pineapplehunter/fractions:/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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6e43cb9de1a7f0daa72299e72f67654f33101c66b8dc25ef3e9243ee8ede9147
[INFO] running `"docker" "start" "-a" "6e43cb9de1a7f0daa72299e72f67654f33101c66b8dc25ef3e9243ee8ede9147"`
[INFO] [stderr]     Checking fractions v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0210]: type parameter `I` must be used as the type parameter for some local type (e.g., `MyStruct<I>`)
[INFO] [stderr]   --> src/fraction.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | impl <I: IntoInteger> Mul<Fraction> for I{
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ type parameter `I` must be used as the type parameter for some local type
[INFO] [stderr]    |
[INFO] [stderr]    = note: only traits defined in the current crate can be implemented for a type parameter
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0210`.
[INFO] [stderr] error[E0210]: type parameter `I` must be used as the type parameter for some local type (e.g., `MyStruct<I>`)
[INFO] [stderr]   --> src/fraction.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | impl <I: IntoInteger> Mul<Fraction> for I{
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ type parameter `I` must be used as the type parameter for some local type
[INFO] [stderr]    |
[INFO] [stderr]    = note: only traits defined in the current crate can be implemented for a type parameter
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0210`.
[INFO] [stderr] error: Could not compile `fractions`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `fractions`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "6e43cb9de1a7f0daa72299e72f67654f33101c66b8dc25ef3e9243ee8ede9147"`
[INFO] running `"docker" "rm" "-f" "6e43cb9de1a7f0daa72299e72f67654f33101c66b8dc25ef3e9243ee8ede9147"`
[INFO] [stdout] 6e43cb9de1a7f0daa72299e72f67654f33101c66b8dc25ef3e9243ee8ede9147