[INFO] fetching crate blake3_guts 0.0.0...
[INFO] checking blake3_guts-0.0.0 against try#ddcf048784667508cd676fef4667f88ae15628a3 for pr-148271
[INFO] extracting crate blake3_guts 0.0.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate blake3_guts 0.0.0
[INFO] finished tweaking crates.io crate blake3_guts 0.0.0
[INFO] tweaked toml for crates.io crate blake3_guts 0.0.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate blake3_guts 0.0.0 on toolchain ddcf048784667508cd676fef4667f88ae15628a3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ddcf048784667508cd676fef4667f88ae15628a3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ddcf048784667508cd676fef4667f88ae15628a3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ddcf048784667508cd676fef4667f88ae15628a3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ddcf048784667508cd676fef4667f88ae15628a3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9289a1e175457be3ad2396ed444d369492017f9c5f40bd3e588efa6133f90cb8
[INFO] running `Command { std: "docker" "start" "-a" "9289a1e175457be3ad2396ed444d369492017f9c5f40bd3e588efa6133f90cb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9289a1e175457be3ad2396ed444d369492017f9c5f40bd3e588efa6133f90cb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9289a1e175457be3ad2396ed444d369492017f9c5f40bd3e588efa6133f90cb8", kill_on_drop: false }`
[INFO] [stdout] 9289a1e175457be3ad2396ed444d369492017f9c5f40bd3e588efa6133f90cb8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ddcf048784667508cd676fef4667f88ae15628a3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 370afc04f8df4848ed661da5edd65af9af9ced0f622f1e61e2be1e60c9772f36
[INFO] running `Command { std: "docker" "start" "-a" "370afc04f8df4848ed661da5edd65af9af9ced0f622f1e61e2be1e60c9772f36", kill_on_drop: false }`
[INFO] [stderr]     Checking blake3_guts v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `reference_impl`
[INFO] [stdout]   --> src/test.rs:55:30
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let mut ref_hasher = reference_impl::Hasher::new_keyed(&TEST_KEY);
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `reference_impl`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `reference_impl`, use `cargo add reference_impl` to add it to your `Cargo.toml`
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]    |
[INFO] [stdout]  1 + use std::hash::Hasher;
[INFO] [stdout]    |
[INFO] [stdout] help: if you import `Hasher`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 55 -         let mut ref_hasher = reference_impl::Hasher::new_keyed(&TEST_KEY);
[INFO] [stdout] 55 +         let mut ref_hasher = Hasher::new_keyed(&TEST_KEY);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `reference_impl`
[INFO] [stdout]    --> src/test.rs:308:30
[INFO] [stdout]     |
[INFO] [stdout] 308 |         let mut ref_hasher = reference_impl::Hasher::new();
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `reference_impl`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `reference_impl`, use `cargo add reference_impl` to add it to your `Cargo.toml`
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]     |
[INFO] [stdout]   1 + use std::hash::Hasher;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `Hasher`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 308 -         let mut ref_hasher = reference_impl::Hasher::new();
[INFO] [stdout] 308 +         let mut ref_hasher = Hasher::new();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `reference_impl`
[INFO] [stdout]    --> src/test.rs:401:26
[INFO] [stdout]     |
[INFO] [stdout] 401 |     let mut ref_hasher = reference_impl::Hasher::new_keyed(&TEST_KEY);
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `reference_impl`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `reference_impl`, use `cargo add reference_impl` to add it to your `Cargo.toml`
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]     |
[INFO] [stdout]   1 + use std::hash::Hasher;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `Hasher`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 401 -     let mut ref_hasher = reference_impl::Hasher::new_keyed(&TEST_KEY);
[INFO] [stdout] 401 +     let mut ref_hasher = Hasher::new_keyed(&TEST_KEY);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `reference_impl`
[INFO] [stdout]    --> src/test.rs:491:30
[INFO] [stdout]     |
[INFO] [stdout] 491 |         let mut ref_hasher = reference_impl::Hasher::new_keyed(key);
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `reference_impl`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `reference_impl`, use `cargo add reference_impl` to add it to your `Cargo.toml`
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]     |
[INFO] [stdout]   1 + use std::hash::Hasher;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `Hasher`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 491 -         let mut ref_hasher = reference_impl::Hasher::new_keyed(key);
[INFO] [stdout] 491 +         let mut ref_hasher = Hasher::new_keyed(key);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:822:21
[INFO] [stdout]     |
[INFO] [stdout] 822 |     unsafe fn split(&mut self, degree: usize) -> (TransposedSplit, TransposedSplit) {
[INFO] [stdout]     |                     ^^^^^^^^^                     ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |                             |
[INFO] [stdout]     |                     |                             the same lifetime is hidden here
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 822 |     unsafe fn split(&mut self, degree: usize) -> (TransposedSplit<'_>, TransposedSplit<'_>) {
[INFO] [stdout]     |                                                                  ++++                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `blake3_guts` (lib test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "370afc04f8df4848ed661da5edd65af9af9ced0f622f1e61e2be1e60c9772f36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "370afc04f8df4848ed661da5edd65af9af9ced0f622f1e61e2be1e60c9772f36", kill_on_drop: false }`
[INFO] [stdout] 370afc04f8df4848ed661da5edd65af9af9ced0f622f1e61e2be1e60c9772f36