[INFO] crate ilp-packet 0.3.0 is already in cache
[INFO] extracting crate ilp-packet 0.3.0 into work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/ilp-packet/0.3.0
[INFO] extracting crate ilp-packet 0.3.0 into work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/reg/ilp-packet/0.3.0
[INFO] validating manifest of ilp-packet-0.3.0 on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ilp-packet-0.3.0 on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ilp-packet-0.3.0
[INFO] finished frobbing ilp-packet-0.3.0
[INFO] frobbed toml for ilp-packet-0.3.0 written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/ilp-packet/0.3.0/Cargo.toml
[INFO] started frobbing ilp-packet-0.3.0
[INFO] finished frobbing ilp-packet-0.3.0
[INFO] frobbed toml for ilp-packet-0.3.0 written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/reg/ilp-packet/0.3.0/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ilp-packet-0.3.0 against master#39401465da4ce27aeeb2c2a26133ac35c63aa515 for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-0/master#39401465da4ce27aeeb2c2a26133ac35c63aa515:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/ilp-packet/0.3.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 565d7fe974d3670ce634d604dd58ad8191c31798b154aaa569f55b900ad6dff0
[INFO] running `"docker" "start" "-a" "565d7fe974d3670ce634d604dd58ad8191c31798b154aaa569f55b900ad6dff0"`
[INFO] [stderr]     Checking ilp-packet v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning[E0515]: cannot return value referencing temporary value
[INFO] [stderr]   --> src/oer.rs:83:16
[INFO] [stderr]    |
[INFO] [stderr] 83 |         return Ok(&empty.to_owned());
[INFO] [stderr]    |                ^^^^----------------^
[INFO] [stderr]    |                |   |
[INFO] [stderr]    |                |   temporary value created here
[INFO] [stderr]    |                returns a value referencing data owned by the current function
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]    = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr] 
[INFO] [stderr] warning[E0515]: cannot return value referencing temporary value
[INFO] [stderr]   --> src/oer.rs:83:16
[INFO] [stderr]    |
[INFO] [stderr] 83 |         return Ok(&empty.to_owned());
[INFO] [stderr]    |                ^^^^----------------^
[INFO] [stderr]    |                |   |
[INFO] [stderr]    |                |   temporary value created here
[INFO] [stderr]    |                returns a value referencing data owned by the current function
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]    = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `"docker" "inspect" "565d7fe974d3670ce634d604dd58ad8191c31798b154aaa569f55b900ad6dff0"`
[INFO] running `"docker" "rm" "-f" "565d7fe974d3670ce634d604dd58ad8191c31798b154aaa569f55b900ad6dff0"`
[INFO] [stdout] 565d7fe974d3670ce634d604dd58ad8191c31798b154aaa569f55b900ad6dff0