[INFO] cloning repository https://github.com/shautvast/rust-simple-json
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shautvast/rust-simple-json" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshautvast%2Frust-simple-json", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshautvast%2Frust-simple-json'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 163c0fc4fb4c5b040cfadbca18fe4165b4cd4f56
[INFO] documenting shautvast/rust-simple-json 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%2Fshautvast%2Frust-simple-json" "/workspace/builds/worker-24/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-24/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shautvast/rust-simple-json 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/shautvast/rust-simple-json
[INFO] finished tweaking git repo https://github.com/shautvast/rust-simple-json
[INFO] tweaked toml for git repo https://github.com/shautvast/rust-simple-json written to /workspace/builds/worker-24/source/Cargo.toml
[INFO] crate git repo https://github.com/shautvast/rust-simple-json 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-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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] 596e6fa4a16f514815dfdc7621b4a3b4a4acf201150e0922128e07ec75e8b63a
[INFO] running `Command { std: "docker" "start" "-a" "596e6fa4a16f514815dfdc7621b4a3b4a4acf201150e0922128e07ec75e8b63a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "596e6fa4a16f514815dfdc7621b4a3b4a4acf201150e0922128e07ec75e8b63a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "596e6fa4a16f514815dfdc7621b4a3b4a4acf201150e0922128e07ec75e8b63a", kill_on_drop: false }`
[INFO] [stdout] 596e6fa4a16f514815dfdc7621b4a3b4a4acf201150e0922128e07ec75e8b63a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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] ccc36d2e3ba6d74dad538993d3794c3aa8f08b602029f5bdc29bcab75b98a80d
[INFO] running `Command { std: "docker" "start" "-a" "ccc36d2e3ba6d74dad538993d3794c3aa8f08b602029f5bdc29bcab75b98a80d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling darling_core v0.13.0
[INFO] [stderr]    Compiling darling_macro v0.13.0
[INFO] [stderr]    Compiling darling v0.13.0
[INFO] [stderr]    Compiling mytrait-derive v0.1.0 (/opt/rustwide/workdir/mytrait-derive)
[INFO] [stdout] warning: unused import: `darling::FromDeriveInput`
[INFO] [stdout]  --> mytrait-derive/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use darling::FromDeriveInput;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  Documenting derive-mytrait v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.91s
[INFO] running `Command { std: "docker" "inspect" "ccc36d2e3ba6d74dad538993d3794c3aa8f08b602029f5bdc29bcab75b98a80d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccc36d2e3ba6d74dad538993d3794c3aa8f08b602029f5bdc29bcab75b98a80d", kill_on_drop: false }`
[INFO] [stdout] ccc36d2e3ba6d74dad538993d3794c3aa8f08b602029f5bdc29bcab75b98a80d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=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] 490c3d9af2bb4cff12a6c3b0dea22bf2e2995a65d80a17347ce0c68c2cde5168
[INFO] running `Command { std: "docker" "start" "-a" "490c3d9af2bb4cff12a6c3b0dea22bf2e2995a65d80a17347ce0c68c2cde5168", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling darling_core v0.13.0
[INFO] [stderr]    Compiling darling_macro v0.13.0
[INFO] [stderr]    Compiling darling v0.13.0
[INFO] [stderr]    Compiling mytrait-derive v0.1.0 (/opt/rustwide/workdir/mytrait-derive)
[INFO] [stdout] warning: unused import: `darling::FromDeriveInput`
[INFO] [stdout]  --> mytrait-derive/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use darling::FromDeriveInput;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  Documenting derive-mytrait v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.33s
[INFO] running `Command { std: "docker" "inspect" "490c3d9af2bb4cff12a6c3b0dea22bf2e2995a65d80a17347ce0c68c2cde5168", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "490c3d9af2bb4cff12a6c3b0dea22bf2e2995a65d80a17347ce0c68c2cde5168", kill_on_drop: false }`
[INFO] [stdout] 490c3d9af2bb4cff12a6c3b0dea22bf2e2995a65d80a17347ce0c68c2cde5168