[INFO] cloning repository https://github.com/ebkalderon/merkle-tree-nix-store-thing
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ebkalderon/merkle-tree-nix-store-thing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Febkalderon%2Fmerkle-tree-nix-store-thing", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Febkalderon%2Fmerkle-tree-nix-store-thing'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cfd6db223b709535ebf131fc9db3c14c11c2331b
[INFO] documenting ebkalderon/merkle-tree-nix-store-thing 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%2Febkalderon%2Fmerkle-tree-nix-store-thing" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ebkalderon/merkle-tree-nix-store-thing 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/ebkalderon/merkle-tree-nix-store-thing
[INFO] finished tweaking git repo https://github.com/ebkalderon/merkle-tree-nix-store-thing
[INFO] tweaked toml for git repo https://github.com/ebkalderon/merkle-tree-nix-store-thing written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/ebkalderon/merkle-tree-nix-store-thing 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 6b789bcdacc87fc17a68bb282b4e06d593b1f6be82fc79f23087592a4ca2a95d
[INFO] running `Command { std: "docker" "start" "-a" "6b789bcdacc87fc17a68bb282b4e06d593b1f6be82fc79f23087592a4ca2a95d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b789bcdacc87fc17a68bb282b4e06d593b1f6be82fc79f23087592a4ca2a95d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b789bcdacc87fc17a68bb282b4e06d593b1f6be82fc79f23087592a4ca2a95d", kill_on_drop: false }`
[INFO] [stdout] 6b789bcdacc87fc17a68bb282b4e06d593b1f6be82fc79f23087592a4ca2a95d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] [stdout] 1e9a8e84c1172b142eba68c01357afe56dbd69b21131911c66fde1913523770b
[INFO] running `Command { std: "docker" "start" "-a" "1e9a8e84c1172b142eba68c01357afe56dbd69b21131911c66fde1913523770b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling const_fn v0.4.2
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking futures-core v0.3.7
[INFO] [stderr]     Checking smallvec v1.5.1
[INFO] [stderr]     Checking futures-sink v0.3.7
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]     Checking bytes v1.0.0
[INFO] [stderr]     Checking futures-io v0.3.7
[INFO] [stderr]     Checking pin-project-lite v0.2.0
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]     Checking ucd-trie v0.1.3
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking subtle v2.3.0
[INFO] [stderr]     Checking funty v1.0.1
[INFO] [stderr]     Checking tap v1.0.0
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]     Checking pathdiff v0.2.0
[INFO] [stderr]     Checking infer v0.3.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]    Compiling tokio v1.0.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling nom v6.0.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking futures-channel v0.3.7
[INFO] [stderr]     Checking futures-task v0.3.7
[INFO] [stderr]     Checking cached v0.22.0
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking bitvec v0.19.4
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot_core v0.8.2
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking mio v0.7.6
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking filetime v0.2.12
[INFO] [stderr]     Checking os_pipe v0.9.2
[INFO] [stderr]     Checking semver-parser v0.10.1
[INFO] [stderr]    Compiling blake3 v0.3.7
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking crossbeam-epoch v0.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.1
[INFO] [stderr]    Compiling futures-macro v0.3.7
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.0
[INFO] [stderr]    Compiling scroll_derive v0.10.4
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]     Checking async-stream v0.3.0
[INFO] [stderr]     Checking tokio-stream v0.1.0
[INFO] [stderr]     Checking tokio-util v0.6.0
[INFO] [stderr]     Checking scroll v0.10.2
[INFO] [stderr]     Checking pin-project v1.0.1
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking futures-util v0.3.7
[INFO] [stderr]     Checking goblin v0.3.0
[INFO] [stderr]     Checking futures-executor v0.3.7
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking semver v0.11.0
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking smol_str v0.1.17
[INFO] [stderr]     Checking futures v0.3.7
[INFO] [stderr]  Documenting foo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]   --> src/util.rs:13:28
[INFO] [stdout]    |
[INFO] [stdout] 13 | /// See this GitHub issue: https://github.com/rust-lang/rust/issues/49921
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://github.com/rust-lang/rust/issues/49921>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(rustdoc::bare_urls)]` on by default
[INFO] [stdout]    = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.84s
[INFO] running `Command { std: "docker" "inspect" "1e9a8e84c1172b142eba68c01357afe56dbd69b21131911c66fde1913523770b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e9a8e84c1172b142eba68c01357afe56dbd69b21131911c66fde1913523770b", kill_on_drop: false }`
[INFO] [stdout] 1e9a8e84c1172b142eba68c01357afe56dbd69b21131911c66fde1913523770b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] [stdout] 6bb3061c64022f70b03ae3df17677dbf11f98d0801981e0c311dd0ec8db5101a
[INFO] running `Command { std: "docker" "start" "-a" "6bb3061c64022f70b03ae3df17677dbf11f98d0801981e0c311dd0ec8db5101a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling const_fn v0.4.2
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking futures-core v0.3.7
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]     Checking futures-sink v0.3.7
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking smallvec v1.5.1
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-io v0.3.7
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]     Checking pin-project-lite v0.2.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking ucd-trie v0.1.3
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking bytes v1.0.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking tap v1.0.0
[INFO] [stderr]     Checking funty v1.0.1
[INFO] [stderr]    Compiling anyhow v1.0.33
[INFO] [stderr]     Checking subtle v2.3.0
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]     Checking pathdiff v0.2.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking infer v0.3.2
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]     Checking futures-channel v0.3.7
[INFO] [stderr]     Checking futures-task v0.3.7
[INFO] [stderr]     Checking cached v0.22.0
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling nom v6.0.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling tokio v1.0.0
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling blake3 v0.3.7
[INFO] [stderr]     Checking bitvec v0.19.4
[INFO] [stderr]     Checking semver-parser v0.10.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot_core v0.8.2
[INFO] [stderr]     Checking mio v0.7.6
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking filetime v0.2.12
[INFO] [stderr]     Checking os_pipe v0.9.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.1
[INFO] [stderr]    Compiling async-stream-impl v0.3.0
[INFO] [stderr]    Compiling futures-macro v0.3.7
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]    Compiling scroll_derive v0.10.4
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]     Checking scroll v0.10.2
[INFO] [stderr]     Checking pin-project v1.0.1
[INFO] [stderr]     Checking async-stream v0.3.0
[INFO] [stderr]     Checking futures-util v0.3.7
[INFO] [stderr]     Checking goblin v0.3.0
[INFO] [stderr]     Checking tokio-stream v0.1.0
[INFO] [stderr]     Checking tokio-util v0.6.0
[INFO] [stderr]     Checking futures-executor v0.3.7
[INFO] [stderr]     Checking futures v0.3.7
[INFO] [stderr]     Checking semver v0.11.0
[INFO] [stderr]     Checking smol_str v0.1.17
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]  Documenting foo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]   --> src/util.rs:13:28
[INFO] [stdout]    |
[INFO] [stdout] 13 | /// See this GitHub issue: https://github.com/rust-lang/rust/issues/49921
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://github.com/rust-lang/rust/issues/49921>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(rustdoc::bare_urls)]` on by default
[INFO] [stdout]    = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.78s
[INFO] running `Command { std: "docker" "inspect" "6bb3061c64022f70b03ae3df17677dbf11f98d0801981e0c311dd0ec8db5101a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bb3061c64022f70b03ae3df17677dbf11f98d0801981e0c311dd0ec8db5101a", kill_on_drop: false }`
[INFO] [stdout] 6bb3061c64022f70b03ae3df17677dbf11f98d0801981e0c311dd0ec8db5101a