[INFO] crate idcontain 0.7.5 is already in cache [INFO] extracting crate idcontain 0.7.5 into work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/idcontain/0.7.5 [INFO] extracting crate idcontain 0.7.5 into work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/idcontain/0.7.5 [INFO] validating manifest of idcontain-0.7.5 on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of idcontain-0.7.5 on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing idcontain-0.7.5 [INFO] finished frobbing idcontain-0.7.5 [INFO] frobbed toml for idcontain-0.7.5 written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/idcontain/0.7.5/Cargo.toml [INFO] started frobbing idcontain-0.7.5 [INFO] finished frobbing idcontain-0.7.5 [INFO] frobbed toml for idcontain-0.7.5 written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/idcontain/0.7.5/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking idcontain-0.7.5 against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-4/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/idcontain/0.7.5:/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" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] af5b358a9d66f61bdb4efaefd10e7bb947c82bdd1ea8942352113b77e22f859b [INFO] running `"docker" "start" "-a" "af5b358a9d66f61bdb4efaefd10e7bb947c82bdd1ea8942352113b77e22f859b"` [INFO] [stderr] Checking idcontain v0.7.5 (/opt/crater/workdir) [INFO] [stderr] warning[E0505]: cannot move out of `_` because it is borrowed [INFO] [stderr] --> src/slab.rs:457:13 [INFO] [stderr] | [INFO] [stderr] 451 | fn get_mut_or_tagged_slot(&mut self, id: Id) -> Result<&mut T, Option<&mut TaggedSlot>> { [INFO] [stderr] | - let's call the lifetime of this reference `'1` [INFO] [stderr] ... [INFO] [stderr] 454 | slot: Slot::Occupied { ref mut value }, [INFO] [stderr] | ------------- borrow of value occurs here [INFO] [stderr] 455 | tag, [INFO] [stderr] 456 | }) if tag == id.tag => Ok(value), [INFO] [stderr] | --------- returning this value requires that borrow lasts for `'1` [INFO] [stderr] 457 | tagged_slot => Err(tagged_slot), [INFO] [stderr] | ^^^^^^^^^^^ move out of value occurs here [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] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] warning[E0505]: cannot move out of `_` because it is borrowed [INFO] [stderr] --> src/slab.rs:457:13 [INFO] [stderr] | [INFO] [stderr] 451 | fn get_mut_or_tagged_slot(&mut self, id: Id) -> Result<&mut T, Option<&mut TaggedSlot>> { [INFO] [stderr] | - let's call the lifetime of this reference `'1` [INFO] [stderr] ... [INFO] [stderr] 454 | slot: Slot::Occupied { ref mut value }, [INFO] [stderr] | ------------- borrow of value occurs here [INFO] [stderr] 455 | tag, [INFO] [stderr] 456 | }) if tag == id.tag => Ok(value), [INFO] [stderr] | --------- returning this value requires that borrow lasts for `'1` [INFO] [stderr] 457 | tagged_slot => Err(tagged_slot), [INFO] [stderr] | ^^^^^^^^^^^ move out of value occurs here [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] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.44s [INFO] running `"docker" "inspect" "af5b358a9d66f61bdb4efaefd10e7bb947c82bdd1ea8942352113b77e22f859b"` [INFO] running `"docker" "rm" "-f" "af5b358a9d66f61bdb4efaefd10e7bb947c82bdd1ea8942352113b77e22f859b"` [INFO] [stdout] af5b358a9d66f61bdb4efaefd10e7bb947c82bdd1ea8942352113b77e22f859b