[INFO] updating cached repository mitsuhiko/rust-execution-context
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mitsuhiko/rust-execution-context
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mitsuhiko/rust-execution-context" "work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/mitsuhiko/rust-execution-context"`
[INFO] [stderr] Cloning into 'work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/mitsuhiko/rust-execution-context'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mitsuhiko/rust-execution-context" "work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/mitsuhiko/rust-execution-context"`
[INFO] [stderr] Cloning into 'work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/mitsuhiko/rust-execution-context'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f48dc76f0a3a844d1ddaa8cf303ca2bf6c999bc2
[INFO] sha for GitHub repo mitsuhiko/rust-execution-context: f48dc76f0a3a844d1ddaa8cf303ca2bf6c999bc2
[INFO] validating manifest of mitsuhiko/rust-execution-context 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 mitsuhiko/rust-execution-context 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 mitsuhiko/rust-execution-context
[INFO] finished frobbing mitsuhiko/rust-execution-context
[INFO] frobbed toml for mitsuhiko/rust-execution-context written to work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/mitsuhiko/rust-execution-context/Cargo.toml
[INFO] started frobbing mitsuhiko/rust-execution-context
[INFO] finished frobbing mitsuhiko/rust-execution-context
[INFO] frobbed toml for mitsuhiko/rust-execution-context written to work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/mitsuhiko/rust-execution-context/Cargo.toml
[INFO] crate mitsuhiko/rust-execution-context 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 mitsuhiko/rust-execution-context against master#1891bfa80364eead426517c68de6947b7692e2de for pr-60261
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60261/worker-0/master#1891bfa80364eead426517c68de6947b7692e2de:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/mitsuhiko/rust-execution-context:/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" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8b6bd422f8a1ed5eb8ee95267992979dede6ea3cb5c9580c7f8f2656cd767414
[INFO] running `"docker" "start" "-a" "8b6bd422f8a1ed5eb8ee95267992979dede6ea3cb5c9580c7f8f2656cd767414"`
[INFO] [stderr]    Compiling rustc_version v0.2.2
[INFO] [stderr]    Compiling im v10.2.0
[INFO] [stderr]     Checking execution-context v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused return value of `core::num::<impl u64>::wrapping_add` that must be used
[INFO] [stderr]   --> src/data.rs:87:13
[INFO] [stderr]    |
[INFO] [stderr] 87 |             self.id.wrapping_add(x as u64);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this returns the result of the operation, without modifying the original
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `core::num::<impl u64>::wrapping_add` that must be used
[INFO] [stderr]   --> src/data.rs:87:13
[INFO] [stderr]    |
[INFO] [stderr] 87 |             self.id.wrapping_add(x as u64);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this returns the result of the operation, without modifying the original
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.38s
[INFO] running `"docker" "inspect" "8b6bd422f8a1ed5eb8ee95267992979dede6ea3cb5c9580c7f8f2656cd767414"`
[INFO] running `"docker" "rm" "-f" "8b6bd422f8a1ed5eb8ee95267992979dede6ea3cb5c9580c7f8f2656cd767414"`
[INFO] [stdout] 8b6bd422f8a1ed5eb8ee95267992979dede6ea3cb5c9580c7f8f2656cd767414