[INFO] updating cached repository https://github.com/Eldalar/Hex
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] dacd366a1c040a66a5e99fe40650393558f5132a
[INFO] checking Eldalar/Hex against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FEldalar%2FHex" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Eldalar/Hex on toolchain c9edc02e8320a9e5799d185910ece7d491f524e6-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Eldalar/Hex
[INFO] finished tweaking git repo https://github.com/Eldalar/Hex
[INFO] tweaked toml for git repo https://github.com/Eldalar/Hex written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Eldalar/Hex already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8ecc333d94c800d61acf7db96de034ff8705b4525df9a96edadec6e2f1ba77a8
[INFO] running `"docker" "start" "-a" "8ecc333d94c800d61acf7db96de034ff8705b4525df9a96edadec6e2f1ba77a8"`
[INFO] [stderr]    Compiling procedural-masquerade v0.1.2
[INFO] [stderr]    Compiling libloading v0.4.0
[INFO] [stderr]     Checking tempdir v0.3.5
[INFO] [stderr]    Compiling rental-impl v0.4.11
[INFO] [stderr]     Checking rental v0.4.11
[INFO] [stderr]     Checking al-sys v0.5.1
[INFO] [stderr]     Checking alto v2.0.0 (https://github.com/Eldalar/alto#8e47a427)
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> /opt/rustwide/cargo-home/git/checkouts/alto-0cacbe2ee1ac4bb1/8e47a42/src/alc.rs:910:59
[INFO] [stderr]     |
[INFO] [stderr] 910 |     pub fn capture_samples<R: AsBufferDataMut<F>>(&mut self, &mut data: R) -> AltoResult<()> {
[INFO] [stderr]     |                                                              ^^^^^^^^^----
[INFO] [stderr]     |                                                              |
[INFO] [stderr]     |                                                              expected type parameter, found &mut _
[INFO] [stderr]     |                                                              help: did you mean `data`: `&R`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `R`
[INFO] [stderr]                found type `&mut _`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: Could not compile `alto`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "8ecc333d94c800d61acf7db96de034ff8705b4525df9a96edadec6e2f1ba77a8"`
[INFO] running `"docker" "rm" "-f" "8ecc333d94c800d61acf7db96de034ff8705b4525df9a96edadec6e2f1ba77a8"`
[INFO] [stdout] 8ecc333d94c800d61acf7db96de034ff8705b4525df9a96edadec6e2f1ba77a8