[INFO] fetching crate hidefix 0.5.2...
[INFO] checking hidefix-0.5.2 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] extracting crate hidefix 0.5.2 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate hidefix 0.5.2 on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hidefix 0.5.2
[INFO] finished tweaking crates.io crate hidefix 0.5.2
[INFO] tweaked toml for crates.io crate hidefix 0.5.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate hidefix 0.5.2 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" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66307844a91e1e07156607b739c0648f8ed3383e3eb1781f1ae523437d44ff5b
[INFO] running `Command { std: "docker" "start" "-a" "66307844a91e1e07156607b739c0648f8ed3383e3eb1781f1ae523437d44ff5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66307844a91e1e07156607b739c0648f8ed3383e3eb1781f1ae523437d44ff5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66307844a91e1e07156607b739c0648f8ed3383e3eb1781f1ae523437d44ff5b", kill_on_drop: false }`
[INFO] [stdout] 66307844a91e1e07156607b739c0648f8ed3383e3eb1781f1ae523437d44ff5b
[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=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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eaf61d61d2db59fa41cca11a9fffd4c431df6d4434ce9a9d405a948f5d20b81a
[INFO] running `Command { std: "docker" "start" "-a" "eaf61d61d2db59fa41cca11a9fffd4c431df6d4434ce9a9d405a948f5d20b81a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
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[INFO] [stderr]    Compiling serde_derive v1.0.119
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[INFO] [stderr]    Compiling pkg-config v0.3.19
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[INFO] [stderr]     Checking byteorder v1.4.2
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[INFO] [stderr]     Checking num_cpus v1.13.0
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[INFO] [stderr]    Compiling hdf5-src v0.7.1
[INFO] [stderr]    Compiling libdeflate-sys v0.7.1
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[INFO] [stderr]    Compiling hdf5-sys v0.7.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling futures-macro v0.3.12
[INFO] [stderr]    Compiling derivative v2.1.3
[INFO] [stderr]    Compiling async-stream-impl v0.3.0
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[INFO] [stderr]    Compiling zerocopy-derive v0.2.0
[INFO] [stderr]     Checking async-stream v0.3.0
[INFO] [stderr]     Checking futures-util v0.3.12
[INFO] [stderr]     Checking zerocopy v0.3.0
[INFO] [stderr]     Checking futures-executor v0.3.12
[INFO] [stderr]     Checking futures v0.3.12
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling num_enum_derive v0.5.1
[INFO] [stderr]     Checking num_enum v0.5.1
[INFO] [stderr]     Checking flexbuffers v0.2.1
[INFO] [stderr]     Checking hidefix v0.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 | #![feature(const_generics, fixed_size_array, cow_is_borrowed, array_methods)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: removed in favor of `#![feature(adt_const_params)]` and `#![feature(generic_const_exprs)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 | #![feature(const_generics, fixed_size_array, cow_is_borrowed, array_methods)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: removed in favor of `#![feature(adt_const_params)]` and `#![feature(generic_const_exprs)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `array_methods` has been stable since 1.77.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:51:63
[INFO] [stdout]    |
[INFO] [stdout] 51 | #![feature(const_generics, fixed_size_array, cow_is_borrowed, array_methods)]
[INFO] [stdout]    |                                                               ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `fixed_size_array`
[INFO] [stdout]   --> src/lib.rs:51:28
[INFO] [stdout]    |
[INFO] [stdout] 51 | #![feature(const_generics, fixed_size_array, cow_is_borrowed, array_methods)]
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `array_methods` has been stable since 1.77.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:51:63
[INFO] [stdout]    |
[INFO] [stdout] 51 | #![feature(const_generics, fixed_size_array, cow_is_borrowed, array_methods)]
[INFO] [stdout]    |                                                               ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `fixed_size_array`
[INFO] [stdout]   --> src/lib.rs:51:28
[INFO] [stdout]    |
[INFO] [stdout] 51 | #![feature(const_generics, fixed_size_array, cow_is_borrowed, array_methods)]
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0557, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hidefix` (lib) due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0557, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hidefix` (lib test) due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "eaf61d61d2db59fa41cca11a9fffd4c431df6d4434ce9a9d405a948f5d20b81a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eaf61d61d2db59fa41cca11a9fffd4c431df6d4434ce9a9d405a948f5d20b81a", kill_on_drop: false }`
[INFO] [stdout] eaf61d61d2db59fa41cca11a9fffd4c431df6d4434ce9a9d405a948f5d20b81a
[INFO] checking hidefix-0.5.2 against try#9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88 for pr-124157
[INFO] extracting crate hidefix 0.5.2 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate hidefix 0.5.2 on toolchain 9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hidefix 0.5.2
[INFO] finished tweaking crates.io crate hidefix 0.5.2
[INFO] tweaked toml for crates.io crate hidefix 0.5.2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate hidefix 0.5.2 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" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49ed3de4c6debe8ebfa9f1e5e97ee3787f6e6a6a224732149781534a1b1b9873
[INFO] running `Command { std: "docker" "start" "-a" "49ed3de4c6debe8ebfa9f1e5e97ee3787f6e6a6a224732149781534a1b1b9873", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49ed3de4c6debe8ebfa9f1e5e97ee3787f6e6a6a224732149781534a1b1b9873", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49ed3de4c6debe8ebfa9f1e5e97ee3787f6e6a6a224732149781534a1b1b9873", kill_on_drop: false }`
[INFO] [stdout] 49ed3de4c6debe8ebfa9f1e5e97ee3787f6e6a6a224732149781534a1b1b9873
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86700e9d172f57666781f67d3b80a7b043f69360387f4ea9435836f7d9e8b476
[INFO] running `Command { std: "docker" "start" "-a" "86700e9d172f57666781f67d3b80a7b043f69360387f4ea9435836f7d9e8b476", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.119
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling serde v1.0.119
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]    Compiling thread_local v1.1.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling libloading v0.6.7
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking futures-core v0.3.12
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]     Checking futures-sink v0.3.12
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]     Checking futures-channel v0.3.12
[INFO] [stderr]     Checking futures-task v0.3.12
[INFO] [stderr]     Checking futures-io v0.3.12
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling log v0.4.13
[INFO] [stderr]     Checking matrixmultiply v0.2.4
[INFO] [stderr]    Compiling tokio v1.0.2
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]    Compiling hdf5 v0.7.1
[INFO] [stderr]     Checking ascii v1.0.0
[INFO] [stderr]     Checking parking_lot_core v0.8.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling hdf5-src v0.7.1
[INFO] [stderr]    Compiling libdeflate-sys v0.7.1
[INFO] [stderr]     Checking hdf5-types v0.7.1
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking byte-slice-cast v1.0.0
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking lru v0.6.3
[INFO] [stderr]     Checking strength_reduce v0.2.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking sled v0.34.6
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]     Checking libdeflater v0.7.1
[INFO] [stderr]    Compiling hdf5-sys v0.7.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling futures-macro v0.3.12
[INFO] [stderr]    Compiling derivative v2.1.3
[INFO] [stderr]    Compiling async-stream-impl v0.3.0
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]    Compiling zerocopy-derive v0.2.0
[INFO] [stderr]    Compiling hdf5-derive v0.7.1
[INFO] [stderr]     Checking async-stream v0.3.0
[INFO] [stderr]     Checking futures-util v0.3.12
[INFO] [stderr]     Checking zerocopy v0.3.0
[INFO] [stderr]     Checking futures-executor v0.3.12
[INFO] [stderr]     Checking futures v0.3.12
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling num_enum_derive v0.5.1
[INFO] [stderr]     Checking num_enum v0.5.1
[INFO] [stderr]     Checking flexbuffers v0.2.1
[INFO] [stderr]     Checking hidefix v0.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 | #![feature(const_generics, fixed_size_array, cow_is_borrowed, array_methods)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: removed in favor of `#![feature(adt_const_params)]` and `#![feature(generic_const_exprs)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 | #![feature(const_generics, fixed_size_array, cow_is_borrowed, array_methods)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: removed in favor of `#![feature(adt_const_params)]` and `#![feature(generic_const_exprs)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `array_methods` has been stable since 1.77.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:51:63
[INFO] [stdout]    |
[INFO] [stdout] 51 | #![feature(const_generics, fixed_size_array, cow_is_borrowed, array_methods)]
[INFO] [stdout]    |                                                               ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `fixed_size_array`
[INFO] [stdout]   --> src/lib.rs:51:28
[INFO] [stdout]    |
[INFO] [stdout] 51 | #![feature(const_generics, fixed_size_array, cow_is_borrowed, array_methods)]
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `array_methods` has been stable since 1.77.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:51:63
[INFO] [stdout]    |
[INFO] [stdout] 51 | #![feature(const_generics, fixed_size_array, cow_is_borrowed, array_methods)]
[INFO] [stdout]    |                                                               ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `fixed_size_array`
[INFO] [stdout]   --> src/lib.rs:51:28
[INFO] [stdout]    |
[INFO] [stdout] 51 | #![feature(const_generics, fixed_size_array, cow_is_borrowed, array_methods)]
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0557, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hidefix` (lib) due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0557, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hidefix` (lib test) due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "86700e9d172f57666781f67d3b80a7b043f69360387f4ea9435836f7d9e8b476", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86700e9d172f57666781f67d3b80a7b043f69360387f4ea9435836f7d9e8b476", kill_on_drop: false }`
[INFO] [stdout] 86700e9d172f57666781f67d3b80a7b043f69360387f4ea9435836f7d9e8b476
