[INFO] fetching crate submerge 0.2.0...
[INFO] testing submerge-0.2.0 against 1.75.0 for beta-1.76-1
[INFO] extracting crate submerge 0.2.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate submerge 0.2.0 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 submerge 0.2.0
[INFO] finished tweaking crates.io crate submerge 0.2.0
[INFO] tweaked toml for crates.io crate submerge 0.2.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded postcard v0.5.2
[INFO] [stderr]   Downloaded byteorder_async v1.2.0
[INFO] [stderr]   Downloaded redb v1.4.0
[INFO] [stderr]   Downloaded packed_simd v0.3.9
[INFO] [stderr]   Downloaded im-rc v15.1.0
[INFO] [stderr]   Downloaded edelcrantz v0.6.1
[INFO] [stderr]   Downloaded brevet v0.4.0
[INFO] [stderr]   Downloaded newel v0.2.0
[INFO] [stderr]   Downloaded pergola v0.9.0
[INFO] [stderr]   Downloaded concorde v0.7.0
[INFO] [stderr]   Downloaded clepsydra v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 6bf2b5447b2bd40706ea8a641499a744216abeb487b9b156a49be1da06b23e4b
[INFO] running `Command { std: "docker" "start" "-a" "6bf2b5447b2bd40706ea8a641499a744216abeb487b9b156a49be1da06b23e4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6bf2b5447b2bd40706ea8a641499a744216abeb487b9b156a49be1da06b23e4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bf2b5447b2bd40706ea8a641499a744216abeb487b9b156a49be1da06b23e4b", kill_on_drop: false }`
[INFO] [stdout] 6bf2b5447b2bd40706ea8a641499a744216abeb487b9b156a49be1da06b23e4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 964f32038892b250d60173a7159f519c61ee26acbf2ca87837f7a34929df3f19
[INFO] running `Command { std: "docker" "start" "-a" "964f32038892b250d60173a7159f519c61ee26acbf2ca87837f7a34929df3f19", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.18
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling futures-io v0.3.30
[INFO] [stderr]    Compiling serde v1.0.194
[INFO] [stderr]    Compiling parking v2.2.0
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling value-bag v1.4.3
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling fastrand v2.0.1
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling bitflags v2.4.1
[INFO] [stderr]    Compiling linux-raw-sys v0.4.12
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling futures-lite v2.1.0
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling bitmaps v2.1.0
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling event-listener v2.5.3
[INFO] [stderr]    Compiling rustix v0.37.27
[INFO] [stderr]    Compiling rand_xoshiro v0.6.0
[INFO] [stderr]    Compiling generic-array v0.12.4
[INFO] [stderr]    Compiling generic-array v0.13.3
[INFO] [stderr]    Compiling im-rc v15.1.0
[INFO] [stderr]    Compiling im v15.1.0
[INFO] [stderr]    Compiling concurrent-queue v2.4.0
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]    Compiling atomic-waker v1.1.2
[INFO] [stderr]    Compiling async-task v4.7.0
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling sized-chunks v0.6.5
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling event-listener v4.0.2
[INFO] [stderr]    Compiling linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]    Compiling fastrand v1.9.0
[INFO] [stderr]    Compiling heapless v0.5.6
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling waker-fn v1.1.1
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling as-slice v0.1.5
[INFO] [stderr]    Compiling piper v0.2.1
[INFO] [stderr]    Compiling event-listener-strategy v0.4.0
[INFO] [stderr]    Compiling hash32 v0.1.1
[INFO] [stderr]    Compiling socket2 v0.4.10
[INFO] [stderr]    Compiling signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling async-lock v3.2.0
[INFO] [stderr]    Compiling async-channel v2.1.1
[INFO] [stderr]    Compiling futures-lite v1.13.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.17
[INFO] [stderr]    Compiling async-lock v2.8.0
[INFO] [stderr]    Compiling iana-time-zone v0.1.59
[INFO] [stderr]    Compiling byteorder_async v1.2.0
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling ryu v1.0.16
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling crossbeam-deque v0.8.4
[INFO] [stderr]    Compiling chrono v0.4.31
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]    Compiling event-listener v3.1.0
[INFO] [stderr]    Compiling async-executor v1.8.0
[INFO] [stderr]    Compiling tracing-log v0.1.4
[INFO] [stderr]    Compiling thread_local v1.1.7
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling packed_simd v0.3.9
[INFO] [stderr]    Compiling postcard-cobs v0.1.5-pre
[INFO] [stderr]    Compiling smallvec v1.11.2
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling async-channel v1.9.0
[INFO] [stderr]    Compiling regex-automata v0.4.3
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling redb v1.4.0
[INFO] [stderr]    Compiling rayon v1.8.0
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/lib.rs:214:1
[INFO] [stdout]     |
[INFO] [stdout] 214 | / #![feature(
[INFO] [stdout] 215 | |     adt_const_params,
[INFO] [stdout] 216 | |     repr_simd,
[INFO] [stdout] 217 | |     rustc_attrs,
[INFO] [stdout] ...   |
[INFO] [stdout] 224 | |     custom_inner_attributes,
[INFO] [stdout] 225 | | )]
[INFO] [stdout]     | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling regex v1.10.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/lib.rs:219:5
[INFO] [stdout]     |
[INFO] [stdout] 219 |     stdsimd,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/packed_simd-0.3.9/src/lib.rs:222:5
[INFO] [stdout]     |
[INFO] [stdout] 222 |     core_intrinsics,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_derive v1.0.194
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling pin-project-internal v1.1.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]    Compiling derive_arbitrary v1.3.2
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling arbitrary v1.3.2
[INFO] [stderr]    Compiling pin-project v1.1.3
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling polling v3.3.1
[INFO] [stderr]    Compiling blocking v1.5.1
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling async-io v2.2.2
[INFO] [stderr]    Compiling async-signal v0.2.5
[INFO] [stderr]    Compiling async-global-executor v2.4.1
[INFO] [stderr]    Compiling async-process v1.8.1
[INFO] [stderr]    Compiling async-std v1.12.0
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `packed_simd` (lib) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "964f32038892b250d60173a7159f519c61ee26acbf2ca87837f7a34929df3f19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "964f32038892b250d60173a7159f519c61ee26acbf2ca87837f7a34929df3f19", kill_on_drop: false }`
[INFO] [stdout] 964f32038892b250d60173a7159f519c61ee26acbf2ca87837f7a34929df3f19
