[INFO] cloning repository https://github.com/jtdowney/b2sum-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jtdowney/b2sum-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtdowney%2Fb2sum-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtdowney%2Fb2sum-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2718125f672b43dae2b8b22a982f2fe4426d472c
[INFO] documenting jtdowney/b2sum-rs 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%2Fjtdowney%2Fb2sum-rs" "/workspace/builds/worker-27/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-27/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jtdowney/b2sum-rs 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/jtdowney/b2sum-rs
[INFO] finished tweaking git repo https://github.com/jtdowney/b2sum-rs
[INFO] tweaked toml for git repo https://github.com/jtdowney/b2sum-rs written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate git repo https://github.com/jtdowney/b2sum-rs 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded docopt v1.1.1
[INFO] [stderr]   Downloaded stable-eyre v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 403be219c247464d26a8b6f1d6ea0afdebec522ed8dff6d3a78d39d5c071fe39
[INFO] running `Command { std: "docker" "start" "-a" "403be219c247464d26a8b6f1d6ea0afdebec522ed8dff6d3a78d39d5c071fe39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "403be219c247464d26a8b6f1d6ea0afdebec522ed8dff6d3a78d39d5c071fe39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "403be219c247464d26a8b6f1d6ea0afdebec522ed8dff6d3a78d39d5c071fe39", kill_on_drop: false }`
[INFO] [stdout] 403be219c247464d26a8b6f1d6ea0afdebec522ed8dff6d3a78d39d5c071fe39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] b48f197b48161bf712a5670a79102cd8092bdff51a3ab81e1727af38c6d1e330
[INFO] running `Command { std: "docker" "start" "-a" "b48f197b48161bf712a5670a79102cd8092bdff51a3ab81e1727af38c6d1e330", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.30
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling libc v0.2.104
[INFO] [stderr]    Compiling cc v1.0.71
[INFO] [stderr]    Compiling eyre v0.6.5
[INFO] [stderr]     Checking gimli v0.25.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking blake2b_simd v0.5.11
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling backtrace v0.3.62
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking object v0.27.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking addr2line v0.16.0
[INFO] [stderr]     Checking stable-eyre v0.2.2
[INFO] [stderr]     Checking docopt v1.1.1
[INFO] [stderr]  Documenting b2sum v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.56s
[INFO] running `Command { std: "docker" "inspect" "b48f197b48161bf712a5670a79102cd8092bdff51a3ab81e1727af38c6d1e330", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b48f197b48161bf712a5670a79102cd8092bdff51a3ab81e1727af38c6d1e330", kill_on_drop: false }`
[INFO] [stdout] b48f197b48161bf712a5670a79102cd8092bdff51a3ab81e1727af38c6d1e330