[INFO] cloning repository https://github.com/Retamogordo/merkle-heapless
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Retamogordo/merkle-heapless" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRetamogordo%2Fmerkle-heapless", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRetamogordo%2Fmerkle-heapless'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7ac629511a1f176a1dc2855668981f16764c9ba1
[INFO] documenting Retamogordo/merkle-heapless against 1.75.0 for beta-1.76-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRetamogordo%2Fmerkle-heapless" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Retamogordo/merkle-heapless 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 git repo https://github.com/Retamogordo/merkle-heapless
[INFO] finished tweaking git repo https://github.com/Retamogordo/merkle-heapless
[INFO] tweaked toml for git repo https://github.com/Retamogordo/merkle-heapless written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Retamogordo/merkle-heapless 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ss58-registry v1.41.0
[INFO] [stderr]   Downloaded target-lexicon v0.12.8
[INFO] [stderr]   Downloaded ref-cast v1.0.17
[INFO] [stderr]   Downloaded rustix v0.36.14
[INFO] [stderr]   Downloaded ref-cast-impl v1.0.17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 1dcf6d986e6bd527a41832158535b91474104b601568cdb88a591c208c5307ea
[INFO] running `Command { std: "docker" "start" "-a" "1dcf6d986e6bd527a41832158535b91474104b601568cdb88a591c208c5307ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1dcf6d986e6bd527a41832158535b91474104b601568cdb88a591c208c5307ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dcf6d986e6bd527a41832158535b91474104b601568cdb88a591c208c5307ea", kill_on_drop: false }`
[INFO] [stdout] 1dcf6d986e6bd527a41832158535b91474104b601568cdb88a591c208c5307ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ad81f542354034606d8600c066525774017c5fed83e06867a0332553d9f6696
[INFO] running `Command { std: "docker" "start" "-a" "5ad81f542354034606d8600c066525774017c5fed83e06867a0332553d9f6696", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]     Checking unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling convert_case v0.6.0
[INFO] [stderr]  Documenting mmr-macro v0.0.4 (/opt/rustwide/workdir/mmr-macro)
[INFO] [stderr]    Compiling mmr-macro v0.0.4 (/opt/rustwide/workdir/mmr-macro)
[INFO] [stdout] warning: `&` without an explicit lifetime name cannot be used here
[INFO] [stdout]   --> mmr-macro/src/lib.rs:48:23
[INFO] [stdout]    |
[INFO] [stdout] 48 |     const TYPE_IDENT: &str = "Type";
[INFO] [stdout]    |                       ^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #115010 <https://github.com/rust-lang/rust/issues/115010>
[INFO] [stdout]    = note: `#[warn(elided_lifetimes_in_associated_constant)]` on by default
[INFO] [stdout] help: use the `'static` lifetime
[INFO] [stdout]    |
[INFO] [stdout] 48 |     const TYPE_IDENT: &'static str = "Type";
[INFO] [stdout]    |                        +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `&` without an explicit lifetime name cannot be used here
[INFO] [stdout]   --> mmr-macro/src/lib.rs:49:32
[INFO] [stdout]    |
[INFO] [stdout] 49 |     const BRANCH_FACTOR_IDENT: &str = "BranchFactor";
[INFO] [stdout]    |                                ^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #115010 <https://github.com/rust-lang/rust/issues/115010>
[INFO] [stdout] help: use the `'static` lifetime
[INFO] [stdout]    |
[INFO] [stdout] 49 |     const BRANCH_FACTOR_IDENT: &'static str = "BranchFactor";
[INFO] [stdout]    |                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `&` without an explicit lifetime name cannot be used here
[INFO] [stdout]   --> mmr-macro/src/lib.rs:50:25
[INFO] [stdout]    |
[INFO] [stdout] 50 |     const NUM_OF_PEAKS: &str = "Peaks";
[INFO] [stdout]    |                         ^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #115010 <https://github.com/rust-lang/rust/issues/115010>
[INFO] [stdout] help: use the `'static` lifetime
[INFO] [stdout]    |
[INFO] [stdout] 50 |     const NUM_OF_PEAKS: &'static str = "Peaks";
[INFO] [stdout]    |                          +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `&` without an explicit lifetime name cannot be used here
[INFO] [stdout]   --> mmr-macro/src/lib.rs:51:28
[INFO] [stdout]    |
[INFO] [stdout] 51 |     const HASH_TYPE_IDENT: &str = "Hash";
[INFO] [stdout]    |                            ^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #115010 <https://github.com/rust-lang/rust/issues/115010>
[INFO] [stdout] help: use the `'static` lifetime
[INFO] [stdout]    |
[INFO] [stdout] 51 |     const HASH_TYPE_IDENT: &'static str = "Hash";
[INFO] [stdout]    |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `&` without an explicit lifetime name cannot be used here
[INFO] [stdout]   --> mmr-macro/src/lib.rs:52:32
[INFO] [stdout]    |
[INFO] [stdout] 52 |     const MAX_INPUT_LEN_IDENT: &str = "MaxInputWordLength";
[INFO] [stdout]    |                                ^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #115010 <https://github.com/rust-lang/rust/issues/115010>
[INFO] [stdout] help: use the `'static` lifetime
[INFO] [stdout]    |
[INFO] [stdout] 52 |     const MAX_INPUT_LEN_IDENT: &'static str = "MaxInputWordLength";
[INFO] [stdout]    |                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  Documenting merkle-heapless v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:140:1
[INFO] [stdout]     |
[INFO] [stdout] 140 | #![feature(generic_const_exprs)]
[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:141:1
[INFO] [stdout]     |
[INFO] [stdout] 141 | #![feature(trivial_bounds)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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 document `merkle-heapless`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --crate-name merkle_heapless src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=ad0de0f8f29f1a74 -L dependency=/opt/rustwide/target/debug/deps --extern mmr_macro=/opt/rustwide/target/debug/deps/libmmr_macro-2d3f09f0e0270c98.so --cap-lints=warn --crate-version 0.0.4` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "5ad81f542354034606d8600c066525774017c5fed83e06867a0332553d9f6696", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ad81f542354034606d8600c066525774017c5fed83e06867a0332553d9f6696", kill_on_drop: false }`
[INFO] [stdout] 5ad81f542354034606d8600c066525774017c5fed83e06867a0332553d9f6696
