[INFO] fetching crate eeric-core 0.1.2...
[INFO] testing eeric-core-0.1.2 against 1.75.0 for beta-1.76-1
[INFO] extracting crate eeric-core 0.1.2 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate eeric-core 0.1.2 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate eeric-core 0.1.2
[INFO] finished tweaking crates.io crate eeric-core 0.1.2
[INFO] tweaked toml for crates.io crate eeric-core 0.1.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate eeric-core 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c4b4b6a508301acb35f9f351645bfffc57524e4ace9ab4e09b173658a932db7
[INFO] running `Command { std: "docker" "start" "-a" "1c4b4b6a508301acb35f9f351645bfffc57524e4ace9ab4e09b173658a932db7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c4b4b6a508301acb35f9f351645bfffc57524e4ace9ab4e09b173658a932db7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c4b4b6a508301acb35f9f351645bfffc57524e4ace9ab4e09b173658a932db7", kill_on_drop: false }`
[INFO] [stdout] 1c4b4b6a508301acb35f9f351645bfffc57524e4ace9ab4e09b173658a932db7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7262fef504b6ff9e52d5fddcef8085232a9722bb1d4d06718ce5d1c08edc8044
[INFO] running `Command { std: "docker" "start" "-a" "7262fef504b6ff9e52d5fddcef8085232a9722bb1d4d06718ce5d1c08edc8044", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling darling_core v0.14.4
[INFO] [stderr]    Compiling darling_macro v0.14.4
[INFO] [stderr]    Compiling darling v0.14.4
[INFO] [stderr]    Compiling derive_builder_core v0.12.0
[INFO] [stderr]    Compiling derive_builder_macro v0.12.0
[INFO] [stderr]    Compiling derive_builder v0.12.0
[INFO] [stderr]    Compiling eeric-core v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(unboxed_closures)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(fn_traits)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(iter_next_chunk)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(array_chunks)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DoubleFpSew`, `DoubleSew`, `VectorEngineBuilder`, `Vlen`, `WideVreg`, `float::*`, `vector::*`
[INFO] [stdout]   --> src/rv_core/instruction/executor/prelude.rs:12:27
[INFO] [stdout]    |
[INFO] [stdout] 12 |         aliases::{csr::*, float::*, integer::*, vector::*},
[INFO] [stdout]    |                           ^^^^^^^^              ^^^^^^^^^
[INFO] [stdout] 13 |         vector::{Vreg, WideVreg},
[INFO] [stdout]    |                        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |         sew::{BaseSew, DoubleFpSew, DoubleSew, EighthSew, FourthSew, FpSew, HalfSew, Sew},
[INFO] [stdout]    |                        ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 18 |         Lmul, MaskBehavior, VectorEngine, VectorEngineBuilder, Vlen,
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::rv_core::registers::aliases::vector::*`
[INFO] [stdout]   --> src/prelude.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub use crate::rv_core::registers::aliases::vector::*;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(fn_traits)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(iter_next_chunk)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(array_chunks)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `eeric-core` (lib) due to 8 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "7262fef504b6ff9e52d5fddcef8085232a9722bb1d4d06718ce5d1c08edc8044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7262fef504b6ff9e52d5fddcef8085232a9722bb1d4d06718ce5d1c08edc8044", kill_on_drop: false }`
[INFO] [stdout] 7262fef504b6ff9e52d5fddcef8085232a9722bb1d4d06718ce5d1c08edc8044
