[INFO] updating cached repository ZacharyKamerling/rust_rts
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ZacharyKamerling/rust_rts
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ZacharyKamerling/rust_rts" "work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/ZacharyKamerling/rust_rts"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/ZacharyKamerling/rust_rts'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ZacharyKamerling/rust_rts" "work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/ZacharyKamerling/rust_rts"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/ZacharyKamerling/rust_rts'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4653f4c80db9249be7a36d7332dd780925a20bf3
[INFO] sha for GitHub repo ZacharyKamerling/rust_rts: 4653f4c80db9249be7a36d7332dd780925a20bf3
[INFO] validating manifest of ZacharyKamerling/rust_rts 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 ZacharyKamerling/rust_rts 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 ZacharyKamerling/rust_rts
[INFO] finished frobbing ZacharyKamerling/rust_rts
[INFO] frobbed toml for ZacharyKamerling/rust_rts written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/ZacharyKamerling/rust_rts/Cargo.toml
[INFO] started frobbing ZacharyKamerling/rust_rts
[INFO] finished frobbing ZacharyKamerling/rust_rts
[INFO] frobbed toml for ZacharyKamerling/rust_rts written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/ZacharyKamerling/rust_rts/Cargo.toml
[INFO] crate ZacharyKamerling/rust_rts already has a lockfile, it will not be regenerated
[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] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] checking ZacharyKamerling/rust_rts against master#39401465da4ce27aeeb2c2a26133ac35c63aa515 for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-4/master#39401465da4ce27aeeb2c2a26133ac35c63aa515:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/ZacharyKamerling/rust_rts:/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] 4fe47d8697d8ee06cb9f842b678febca5291acc0d912137b3393bd9e8de68bd2
[INFO] running `"docker" "start" "-a" "4fe47d8697d8ee06cb9f842b678febca5291acc0d912137b3393bd9e8de68bd2"`
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking time v0.1.37
[INFO] [stderr]     Checking net2 v0.2.29
[INFO] [stderr]     Checking log v0.4.3
[INFO] [stderr]     Checking idna v0.1.2
[INFO] [stderr]     Checking mio v0.6.14
[INFO] [stderr]     Checking num-bigint v0.1.39
[INFO] [stderr]     Checking url v1.7.0
[INFO] [stderr]     Checking num-rational v0.1.38
[INFO] [stderr]     Checking num v0.1.39
[INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-1.7.0/src/form_urlencoded.rs:261:40
[INFO] [stderr]     |
[INFO] [stderr] 259 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stderr]     |      -- lifetime `'a` defined here
[INFO] [stderr] 260 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stderr] 261 |     fn finish(self) -> &'a mut ::Url { self.url }
[INFO] [stderr]     |                                        ^^^^^^^^ - here, drop of `self` needs exclusive access to `*self.url`, because the type `UrlQuery<'_>` implements the `Drop` trait
[INFO] [stderr]     |                                        |
[INFO] [stderr]     |                                        returning this value requires that `*self.url` is borrowed for `'a`
[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]     Checking ws v0.7.6
[INFO] [stderr]     Checking rust_rts v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `libs::bitvec::test::Bencher`
[INFO] [stderr]  --> src/libs/bitvec.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use libs::bitvec::test::Bencher;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `is_extractor`
[INFO] [stderr]   --> src/behavior/unit/building.rs:81:9
[INFO] [stderr]    |
[INFO] [stderr] 81 |     let is_extractor = proto.is_extractor();
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_is_extractor`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `is_extractor`
[INFO] [stderr]   --> src/behavior/unit/building.rs:81:9
[INFO] [stderr]    |
[INFO] [stderr] 81 |     let is_extractor = proto.is_extractor();
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_is_extractor`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.90s
[INFO] running `"docker" "inspect" "4fe47d8697d8ee06cb9f842b678febca5291acc0d912137b3393bd9e8de68bd2"`
[INFO] running `"docker" "rm" "-f" "4fe47d8697d8ee06cb9f842b678febca5291acc0d912137b3393bd9e8de68bd2"`
[INFO] [stdout] 4fe47d8697d8ee06cb9f842b678febca5291acc0d912137b3393bd9e8de68bd2