[INFO] cloning repository https://github.com/derezzedex/th_composer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/derezzedex/th_composer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderezzedex%2Fth_composer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderezzedex%2Fth_composer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d928763d9b1657f5434b8dd600d7ecaae844a7bb
[INFO] documenting derezzedex/th_composer against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderezzedex%2Fth_composer" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/derezzedex/th_composer on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/derezzedex/th_composer
[INFO] finished tweaking git repo https://github.com/derezzedex/th_composer
[INFO] tweaked toml for git repo https://github.com/derezzedex/th_composer written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/derezzedex/th_composer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro-hack v0.4.1
[INFO] [stderr]   Downloaded data-encoding v2.1.1
[INFO] [stderr]   Downloaded proc-macro-hack-impl v0.4.1
[INFO] [stderr]   Downloaded data-encoding-macro v0.1.4
[INFO] [stderr]   Downloaded data-encoding-macro-internal v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91d04ba07642fbf3b0af2ce6b1a0153e0ef2d7c0a1efa944fdfbcd2f1367527d
[INFO] running `Command { std: "docker" "start" "-a" "91d04ba07642fbf3b0af2ce6b1a0153e0ef2d7c0a1efa944fdfbcd2f1367527d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91d04ba07642fbf3b0af2ce6b1a0153e0ef2d7c0a1efa944fdfbcd2f1367527d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91d04ba07642fbf3b0af2ce6b1a0153e0ef2d7c0a1efa944fdfbcd2f1367527d", kill_on_drop: false }`
[INFO] [stdout] 91d04ba07642fbf3b0af2ce6b1a0153e0ef2d7c0a1efa944fdfbcd2f1367527d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 388d8a411d9a5e41d467ad1b5309b1667fd03c7c296e1e5d643b4b52e6aa156f
[INFO] running `Command { std: "docker" "start" "-a" "388d8a411d9a5e41d467ad1b5309b1667fd03c7c296e1e5d643b4b52e6aa156f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-hack-impl v0.4.1
[INFO] [stderr]    Compiling data-encoding v2.1.1
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling proc-macro-hack v0.4.1
[INFO] [stderr]    Compiling data-encoding-macro-internal v0.1.4
[INFO] [stderr]     Checking data-encoding-macro v0.1.4
[INFO] [stderr]  Documenting th_composer v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: proc-macro derive panicked
[INFO] [stdout]   --> src/techniques/base.rs:12:25
[INFO] [stdout]    |
[INFO] [stdout] 12 |   const BASE2: Encoding = new_encoding!{
[INFO] [stdout]    |  _________________________^
[INFO] [stdout] 13 | |     symbols: "01",
[INFO] [stdout] 14 | |     wrap_width: 8,
[INFO] [stdout] 15 | |     wrap_separator: " ",
[INFO] [stdout] 16 | | };
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: assertion failed: source.starts_with(prefix)
[INFO] [stdout]    = note: this error originates in the macro `internal_new_encoding` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: proc-macro derive panicked
[INFO] [stdout]   --> src/techniques/base.rs:20:25
[INFO] [stdout]    |
[INFO] [stdout] 20 |   const BASE8: Encoding = new_encoding!{
[INFO] [stdout]    |  _________________________^
[INFO] [stdout] 21 | |     symbols: "01234567",
[INFO] [stdout] 22 | | };
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: assertion failed: source.starts_with(prefix)
[INFO] [stdout]    = note: this error originates in the macro `internal_new_encoding` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `proc_macro_call` in this scope
[INFO] [stdout]   --> src/techniques/base.rs:20:25
[INFO] [stdout]    |
[INFO] [stdout] 20 |   const BASE8: Encoding = new_encoding!{
[INFO] [stdout]    |  _________________________^
[INFO] [stdout] 21 | |     symbols: "01234567",
[INFO] [stdout] 22 | | };
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `internal_new_encoding` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `proc_macro_call` in this scope
[INFO] [stdout]   --> src/techniques/base.rs:12:25
[INFO] [stdout]    |
[INFO] [stdout] 12 |   const BASE2: Encoding = new_encoding!{
[INFO] [stdout]    |  _________________________^
[INFO] [stdout] 13 | |     symbols: "01",
[INFO] [stdout] 14 | |     wrap_width: 8,
[INFO] [stdout] 15 | |     wrap_separator: " ",
[INFO] [stdout] 16 | | };
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `internal_new_encoding` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `th_composer`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name th_composer src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=f7ed3a21d2715369 -L dependency=/opt/rustwide/target/debug/deps --extern clap=/opt/rustwide/target/debug/deps/libclap-a9c198513e1e316b.rmeta --extern data_encoding=/opt/rustwide/target/debug/deps/libdata_encoding-266ff34ca86eb276.rmeta --extern data_encoding_macro=/opt/rustwide/target/debug/deps/libdata_encoding_macro-396a422133efa0d8.rmeta --cap-lints=warn --crate-version 0.1.2` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "388d8a411d9a5e41d467ad1b5309b1667fd03c7c296e1e5d643b4b52e6aa156f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "388d8a411d9a5e41d467ad1b5309b1667fd03c7c296e1e5d643b4b52e6aa156f", kill_on_drop: false }`
[INFO] [stdout] 388d8a411d9a5e41d467ad1b5309b1667fd03c7c296e1e5d643b4b52e6aa156f