[INFO] cloning repository https://github.com/MSghais/flat_contract_mmr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MSghais/flat_contract_mmr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMSghais%2Fflat_contract_mmr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMSghais%2Fflat_contract_mmr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9f4423595bb66d08851ea004593afdd47a51f0e3
[INFO] documenting MSghais/flat_contract_mmr against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMSghais%2Fflat_contract_mmr" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MSghais/flat_contract_mmr on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MSghais/flat_contract_mmr
[INFO] finished tweaking git repo https://github.com/MSghais/flat_contract_mmr
[INFO] tweaked toml for git repo https://github.com/MSghais/flat_contract_mmr written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/MSghais/flat_contract_mmr already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: dependencies.ink_env.dependencies
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 82067e2686871a53b2872551c3790a9a3568804faa6189204c2db97b1bc29936
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "82067e2686871a53b2872551c3790a9a3568804faa6189204c2db97b1bc29936", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82067e2686871a53b2872551c3790a9a3568804faa6189204c2db97b1bc29936", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82067e2686871a53b2872551c3790a9a3568804faa6189204c2db97b1bc29936", kill_on_drop: false }`
[INFO] [stdout] 82067e2686871a53b2872551c3790a9a3568804faa6189204c2db97b1bc29936
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 392ad343f39c99faf00efeb94178ec75ca471fa48e446a2c9ba121c72c6b4730
[INFO] running `Command { std: "docker" "start" "-a" "392ad343f39c99faf00efeb94178ec75ca471fa48e446a2c9ba121c72c6b4730", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: dependencies.ink_env.dependencies
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling syn v1.0.88
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]    Compiling libc v0.2.120
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]     Checking byte-slice-cast v1.2.1
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling safe-proc-macro2 v1.0.36
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking array-init v2.0.0
[INFO] [stderr]    Compiling unzip3 v1.0.0
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling secp256k1-sys v0.4.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling ink_prelude v3.0.0-rc9
[INFO] [stderr]     Checking ink_allocator v3.0.0-rc9
[INFO] [stderr]     Checking wyz v0.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]     Checking bitvec v1.0.0
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling safe-quote v1.0.15
[INFO] [stderr]    Compiling safe-regex-compiler v0.2.5
[INFO] [stderr]     Checking getrandom v0.2.5
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking secp256k1 v0.21.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling safe-regex-macro v0.2.5
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking crypto-common v0.1.3
[INFO] [stderr]     Checking block-buffer v0.10.2
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking safe-regex v0.2.5
[INFO] [stderr]     Checking libsecp256k1-core v0.3.0
[INFO] [stderr]     Checking blake2 v0.9.2
[INFO] [stderr]     Checking digest v0.10.3
[INFO] [stderr]     Checking sha2 v0.10.2
[INFO] [stderr]     Checking sha3 v0.10.1
[INFO] [stderr]     Checking blake2 v0.10.4
[INFO] [stderr]    Compiling libsecp256k1-gen-genmult v0.3.0
[INFO] [stderr]    Compiling libsecp256k1-gen-ecmult v0.3.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling impl-serde v0.3.2
[INFO] [stderr]    Compiling libsecp256k1 v0.7.0
[INFO] [stderr]    Compiling ink_lang_ir v3.0.0-rc9
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.2.2
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling ink_storage_derive v3.0.0-rc9
[INFO] [stderr]    Compiling displaydoc v0.2.3
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling proc-macro-crate v1.1.3
[INFO] [stderr]    Compiling parity-scale-codec-derive v3.1.0
[INFO] [stderr]    Compiling scale-info-derive v2.0.0
[INFO] [stderr]    Compiling parity-scale-codec v3.1.0
[INFO] [stderr]    Compiling ink_lang_codegen v3.0.0-rc9
[INFO] [stderr]    Compiling ink_primitives v3.0.0-rc9
[INFO] [stderr]     Checking scale-info v2.0.1
[INFO] [stderr]    Compiling ink_lang_macro v3.0.0-rc9
[INFO] [stderr]     Checking arber v0.2.0 (/opt/rustwide/workdir/arber)
[INFO] [stderr]     Checking ink_metadata v3.0.0-rc9
[INFO] [stderr]    Compiling pink-extension-macro v0.1.3
[INFO] [stderr]     Checking ink_env v3.0.0-rc9
[INFO] [stderr]     Checking ink_storage v3.0.0-rc9
[INFO] [stderr]     Checking ink_eth_compatibility v3.0.0-rc9
[INFO] [stderr]     Checking ink_lang v3.0.0-rc9
[INFO] [stderr]     Checking pink-extension v0.1.5
[INFO] [stderr]  Documenting flat_merkle_mountain_range v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `Error`
[INFO] [stdout]    --> lib.rs:198:5
[INFO] [stdout]     |
[INFO] [stdout] 198 | /     /// Parses a Github Gist url.
[INFO] [stdout] 199 | |     ///
[INFO] [stdout] 200 | |     /// - Returns a parsed [GistUrl] struct if the input is a valid url;
[INFO] [stdout] 201 | |     /// - Otherwise returns an [Error].
[INFO] [stdout]     | |_______________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout]     = note: the link appears in this line:
[INFO] [stdout]             
[INFO] [stdout]             - Otherwise returns an [Error].
[INFO] [stdout]                                     ^^^^^
[INFO] [stdout]     = note: no item named `Error` in scope
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Error`
[INFO] [stdout]    --> lib.rs:220:5
[INFO] [stdout]     |
[INFO] [stdout] 220 | /     /// Extracts the ownerhip of the gist from a claim in the gist body.
[INFO] [stdout] 221 | |     ///
[INFO] [stdout] 222 | |     /// A valid claim must have the statement "This gist is owned by address: 0x..." in `body`. The
[INFO] [stdout] 223 | |     /// address must be the 256 bits public key of the Substrate account in hex.
[INFO] [stdout] 224 | |     ///
[INFO] [stdout] 225 | |     /// - Returns a 256-bit `AccountId` representing the owner account if the claim is valid;
[INFO] [stdout] 226 | |     /// - otherwise returns an [Error].
[INFO] [stdout]     | |_______________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the link appears in this line:
[INFO] [stdout]             
[INFO] [stdout]             - otherwise returns an [Error].
[INFO] [stdout]                                     ^^^^^
[INFO] [stdout]     = note: no item named `Error` in scope
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 41s
[INFO] running `Command { std: "docker" "inspect" "392ad343f39c99faf00efeb94178ec75ca471fa48e446a2c9ba121c72c6b4730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "392ad343f39c99faf00efeb94178ec75ca471fa48e446a2c9ba121c72c6b4730", kill_on_drop: false }`
[INFO] [stdout] 392ad343f39c99faf00efeb94178ec75ca471fa48e446a2c9ba121c72c6b4730
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c9257e0320ccba6d553ef27fc15b6583823481787664fcc1c921beb719d0ed3d
[INFO] running `Command { std: "docker" "start" "-a" "c9257e0320ccba6d553ef27fc15b6583823481787664fcc1c921beb719d0ed3d", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: dependencies.ink_env.dependencies
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.88
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling libc v0.2.120
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking byte-slice-cast v1.2.1
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling safe-proc-macro2 v1.0.36
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking cpufeatures v0.2.1
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking array-init v2.0.0
[INFO] [stderr]    Compiling unzip3 v1.0.0
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking ink_prelude v3.0.0-rc9
[INFO] [stderr]     Checking ink_allocator v3.0.0-rc9
[INFO] [stderr]     Checking wyz v0.5.0
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking bitvec v1.0.0
[INFO] [stderr]    Compiling secp256k1-sys v0.4.2
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling safe-quote v1.0.15
[INFO] [stderr]     Checking getrandom v0.2.5
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling safe-regex-compiler v0.2.5
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling safe-regex-macro v0.2.5
[INFO] [stderr]     Checking block-buffer v0.10.2
[INFO] [stderr]     Checking crypto-common v0.1.3
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking libsecp256k1-core v0.3.0
[INFO] [stderr]     Checking blake2 v0.9.2
[INFO] [stderr]     Checking digest v0.10.3
[INFO] [stderr]     Checking secp256k1 v0.21.3
[INFO] [stderr]     Checking sha2 v0.10.2
[INFO] [stderr]     Checking blake2 v0.10.4
[INFO] [stderr]     Checking sha3 v0.10.1
[INFO] [stderr]     Checking safe-regex v0.2.5
[INFO] [stderr]    Compiling libsecp256k1-gen-ecmult v0.3.0
[INFO] [stderr]    Compiling libsecp256k1-gen-genmult v0.3.0
[INFO] [stderr]    Compiling libsecp256k1 v0.7.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling impl-serde v0.3.2
[INFO] [stderr]    Compiling ink_lang_ir v3.0.0-rc9
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.2.2
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling ink_storage_derive v3.0.0-rc9
[INFO] [stderr]    Compiling displaydoc v0.2.3
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling proc-macro-crate v1.1.3
[INFO] [stderr]    Compiling parity-scale-codec-derive v3.1.0
[INFO] [stderr]    Compiling scale-info-derive v2.0.0
[INFO] [stderr]    Compiling parity-scale-codec v3.1.0
[INFO] [stderr]    Compiling ink_primitives v3.0.0-rc9
[INFO] [stderr]    Compiling ink_lang_codegen v3.0.0-rc9
[INFO] [stderr]    Compiling ink_lang_macro v3.0.0-rc9
[INFO] [stderr]     Checking scale-info v2.0.1
[INFO] [stderr]     Checking arber v0.2.0 (/opt/rustwide/workdir/arber)
[INFO] [stderr]    Compiling pink-extension-macro v0.1.3
[INFO] [stderr]     Checking ink_metadata v3.0.0-rc9
[INFO] [stderr]     Checking ink_env v3.0.0-rc9
[INFO] [stderr]     Checking ink_eth_compatibility v3.0.0-rc9
[INFO] [stderr]     Checking ink_storage v3.0.0-rc9
[INFO] [stderr]     Checking ink_lang v3.0.0-rc9
[INFO] [stderr]     Checking pink-extension v0.1.5
[INFO] [stderr]  Documenting flat_merkle_mountain_range v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 40s
[INFO] running `Command { std: "docker" "inspect" "c9257e0320ccba6d553ef27fc15b6583823481787664fcc1c921beb719d0ed3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9257e0320ccba6d553ef27fc15b6583823481787664fcc1c921beb719d0ed3d", kill_on_drop: false }`
[INFO] [stdout] c9257e0320ccba6d553ef27fc15b6583823481787664fcc1c921beb719d0ed3d