[INFO] cloning repository https://github.com/yodang/irs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yodang/irs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyodang%2Firs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyodang%2Firs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6a3d624d3fb1a4ed3db559970d368c23f2c7da1b
[INFO] documenting yodang/irs against 1.75.0 for beta-1.76-rustdoc-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyodang%2Firs" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yodang/irs on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yodang/irs
[INFO] finished tweaking git repo https://github.com/yodang/irs
[INFO] tweaked toml for git repo https://github.com/yodang/irs written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/yodang/irs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded net2 v0.2.32
[INFO] [stderr]   Downloaded matches v0.1.6
[INFO] [stderr]   Downloaded bytes v0.4.6
[INFO] [stderr]   Downloaded slab v0.4.0
[INFO] [stderr]   Downloaded lazycell v0.6.0
[INFO] [stderr]   Downloaded mio v0.6.14
[INFO] [stderr]   Downloaded unicode-normalization v0.1.5
[INFO] [stderr]   Downloaded idna v0.1.4
[INFO] [stderr]   Downloaded libc v0.2.39
[INFO] [stderr]   Downloaded resolve v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a515cd87a61b1f87e84edeb5a422ee7d542d256188c543717421b17740bf2b1
[INFO] running `Command { std: "docker" "start" "-a" "1a515cd87a61b1f87e84edeb5a422ee7d542d256188c543717421b17740bf2b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a515cd87a61b1f87e84edeb5a422ee7d542d256188c543717421b17740bf2b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a515cd87a61b1f87e84edeb5a422ee7d542d256188c543717421b17740bf2b1", kill_on_drop: false }`
[INFO] [stdout] 1a515cd87a61b1f87e84edeb5a422ee7d542d256188c543717421b17740bf2b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0413a714a84e6956906ca9bf2094467c14bfe4efa4197f10d043dfdbc344d600
[INFO] running `Command { std: "docker" "start" "-a" "0413a714a84e6956906ca9bf2094467c14bfe4efa4197f10d043dfdbc344d600", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.39
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling pkg-config v0.3.11
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]     Checking matches v0.1.6
[INFO] [stderr]     Checking stable_deref_trait v1.0.0
[INFO] [stderr]     Checking serde v1.0.55
[INFO] [stderr]     Checking array-macro v1.0.2
[INFO] [stderr]     Checking unicode-normalization v0.1.5
[INFO] [stderr]     Checking reexport-proc-macro v1.0.2
[INFO] [stderr]     Checking enumset v0.3.3
[INFO] [stderr]     Checking lazycell v0.6.0
[INFO] [stderr]     Checking unicode-segmentation v1.2.1
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking byteorder v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking slab v0.4.0
[INFO] [stderr]     Checking xi-unicode v0.1.0
[INFO] [stderr]     Checking maplit v1.0.1
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]     Checking bytes v0.4.6
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]     Checking idna v0.1.4
[INFO] [stderr]     Checking mio v0.6.14
[INFO] [stderr]    Compiling ncurses v5.91.0
[INFO] [stderr]    Compiling syn v0.13.10
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking num-bigint v0.1.43
[INFO] [stderr]     Checking resolve v0.2.0
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]    Compiling enum-map-derive v0.2.5
[INFO] [stderr]     Checking toml v0.4.6
[INFO] [stderr]     Checking enum-map v0.2.29
[INFO] [stderr]     Checking cursive v0.8.1
[INFO] [stderr]  Documenting irs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.98s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24, syn v0.13.10
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] [stderr]    Generated /opt/rustwide/target/doc/irs/index.html
[INFO] running `Command { std: "docker" "inspect" "0413a714a84e6956906ca9bf2094467c14bfe4efa4197f10d043dfdbc344d600", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0413a714a84e6956906ca9bf2094467c14bfe4efa4197f10d043dfdbc344d600", kill_on_drop: false }`
[INFO] [stdout] 0413a714a84e6956906ca9bf2094467c14bfe4efa4197f10d043dfdbc344d600