[INFO] fetching crate hctr2 0.2.0...
[INFO] testing hctr2-0.2.0 against try#0abe69e6c16114311cc2700e972492e64d69c28f for pr-154065-1
[INFO] extracting crate hctr2 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] removed /workspace/builds/worker-4-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate hctr2 0.2.0
[INFO] finished tweaking crates.io crate hctr2 0.2.0
[INFO] tweaked toml for crates.io crate hctr2 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate hctr2 0.2.0 on toolchain 0abe69e6c16114311cc2700e972492e64d69c28f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "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" "+0abe69e6c16114311cc2700e972492e64d69c28f" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 28 packages to latest compatible versions
[INFO] [stderr]       Adding cipher v0.4.4 (available: v0.5.1)
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v0.14.9)
[INFO] [stderr]       Adding polyval v0.6.2 (available: v0.7.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] acb8ca22d8345d9f3351477fc57e9c45dbb67c7c68d30532763aa15941776b50
[INFO] running `Command { std: "docker" "start" "-a" "acb8ca22d8345d9f3351477fc57e9c45dbb67c7c68d30532763aa15941776b50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "acb8ca22d8345d9f3351477fc57e9c45dbb67c7c68d30532763aa15941776b50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acb8ca22d8345d9f3351477fc57e9c45dbb67c7c68d30532763aa15941776b50", kill_on_drop: false }`
[INFO] [stdout] acb8ca22d8345d9f3351477fc57e9c45dbb67c7c68d30532763aa15941776b50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1608cf849fa27176577512f72a7e0e5d1c2e27720c5f40bdaf520fc67dfa0a4e
[INFO] running `Command { std: "docker" "start" "-a" "1608cf849fa27176577512f72a7e0e5d1c2e27720c5f40bdaf520fc67dfa0a4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling crypto-common v0.1.7
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling universal-hash v0.5.1
[INFO] [stderr]    Compiling cipher v0.4.4
[INFO] [stderr]    Compiling polyval v0.6.2
[INFO] [stderr]    Compiling hctr2 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/lib.rs:304:12
[INFO] [stdout]     |
[INFO] [stdout] 304 |         if let Some(n) = self.tweak_len && n == tweak.len() {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `let_chains` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | #![feature(let_chains)]
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `slice_as_chunks` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | #![feature(slice_as_chunks)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `array_chunks`
[INFO] [stdout]   --> src/lib.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(array_chunks)]
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `split_array_ref` found for reference `&[u8]` in the current scope
[INFO] [stdout]    --> src/lib.rs:152:26
[INFO] [stdout]     |
[INFO] [stdout] 152 |         let (M, N) = src.split_array_ref::<BLOCK_SIZE>();
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `split_at` with a similar name, but with different arguments
[INFO] [stdout]    --> /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/core/src/slice/mod.rs:1952:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `split_array_mut` found for mutable reference `&mut [u8]` in the current scope
[INFO] [stdout]    --> src/lib.rs:180:26
[INFO] [stdout]     |
[INFO] [stdout] 180 |         let (U, V) = dst.split_array_mut::<BLOCK_SIZE>();
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `split_mut` with a similar name, but with different arguments
[INFO] [stdout]    --> /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/core/src/slice/mod.rs:2266:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `split_array_mut` found for mutable reference `&mut [u8]` in the current scope
[INFO] [stdout]    --> src/lib.rs:238:27
[INFO] [stdout]     |
[INFO] [stdout] 238 |         let (M, N) = data.split_array_mut::<BLOCK_SIZE>();
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `split_mut` with a similar name, but with different arguments
[INFO] [stdout]    --> /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/core/src/slice/mod.rs:2266:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:271:24
[INFO] [stdout]     |
[INFO] [stdout] 271 |         xor_block_into(M, &UU.into(), &state.finalize_reset().into());
[INFO] [stdout]     |         -------------- ^ types differ in mutability
[INFO] [stdout]     |         |
[INFO] [stdout]     |         arguments to this function are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected mutable reference `&mut _`
[INFO] [stdout]                        found reference `&_`
[INFO] [stdout] note: function defined here
[INFO] [stdout]    --> src/lib.rs:366:4
[INFO] [stdout]     |
[INFO] [stdout] 366 | fn xor_block_into<const N: usize>(z: &mut [u8; N], x: &[u8; N], y: &[u8; N]) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^                 ---------------
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hctr2` (lib) due to 6 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "1608cf849fa27176577512f72a7e0e5d1c2e27720c5f40bdaf520fc67dfa0a4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1608cf849fa27176577512f72a7e0e5d1c2e27720c5f40bdaf520fc67dfa0a4e", kill_on_drop: false }`
[INFO] [stdout] 1608cf849fa27176577512f72a7e0e5d1c2e27720c5f40bdaf520fc67dfa0a4e
