[INFO] cloning repository https://github.com/ms-ati/experiment-differ
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ms-ati/experiment-differ" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fms-ati%2Fexperiment-differ", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fms-ati%2Fexperiment-differ'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9d56b35fdc66e7b1b8215bc1d27dcb25571ec8c9
[INFO] documenting ms-ati/experiment-differ against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fms-ati%2Fexperiment-differ" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ms-ati/experiment-differ on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-9/source/.cargo/config
[INFO] started tweaking git repo https://github.com/ms-ati/experiment-differ
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/ms-ati/experiment-differ
[INFO] tweaked toml for git repo https://github.com/ms-ati/experiment-differ written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/ms-ati/experiment-differ already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8eea3eb6e6669eb58c0a646317134b7b333c4f03c1ef19123a1a9d6d2def23ca
[INFO] running `Command { std: "docker" "start" "-a" "8eea3eb6e6669eb58c0a646317134b7b333c4f03c1ef19123a1a9d6d2def23ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8eea3eb6e6669eb58c0a646317134b7b333c4f03c1ef19123a1a9d6d2def23ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8eea3eb6e6669eb58c0a646317134b7b333c4f03c1ef19123a1a9d6d2def23ca", kill_on_drop: false }`
[INFO] [stdout] 8eea3eb6e6669eb58c0a646317134b7b333c4f03c1ef19123a1a9d6d2def23ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 962213916f0cd3bb6e1fcfcb2bae6ab6027810300b7c0f17b90d0493c93b8bd5
[INFO] running `Command { std: "docker" "start" "-a" "962213916f0cd3bb6e1fcfcb2bae6ab6027810300b7c0f17b90d0493c93b8bd5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.13
[INFO] [stderr]    Compiling syn v1.0.22
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]    Compiling smallvec v1.4.0
[INFO] [stderr]    Compiling cc v1.0.53
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]     Checking gimli v0.21.0
[INFO] [stderr]    Compiling deunicode v0.4.3
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking object v0.19.0
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.7
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking dtoa v0.4.5
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking downcast v0.10.0
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking fragile v1.0.0
[INFO] [stderr]    Compiling if_chain v1.0.0
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling slug v0.1.4
[INFO] [stderr]    Compiling unicode-normalization v0.1.12
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]    Compiling quote v1.0.5
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]    Compiling lmdb-rkv-sys v0.11.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking float-cmp v0.6.0
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking lmdb-rkv v0.14.0
[INFO] [stderr]     Checking addr2line v0.12.0
[INFO] [stderr]     Checking predicates v1.0.4
[INFO] [stderr]     Checking once-cell-regex v0.1.1
[INFO] [stderr]     Checking backtrace v0.3.48
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]    Compiling mockall_derive v0.7.1
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]     Checking structopt v0.3.14
[INFO] [stderr]     Checking mockall v0.7.1
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking serde_yaml v0.8.12
[INFO] [stderr]     Checking rkv v0.10.4
[INFO] [stderr]     Checking validator v0.10.0
[INFO] [stderr]    Compiling jmespatch v0.3.0
[INFO] [stderr]    Compiling validator_derive v0.10.0
[INFO] [stderr]     Checking experiment-differ v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting experiment-differ v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 04s
[INFO] running `Command { std: "docker" "inspect" "962213916f0cd3bb6e1fcfcb2bae6ab6027810300b7c0f17b90d0493c93b8bd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "962213916f0cd3bb6e1fcfcb2bae6ab6027810300b7c0f17b90d0493c93b8bd5", kill_on_drop: false }`
[INFO] [stdout] 962213916f0cd3bb6e1fcfcb2bae6ab6027810300b7c0f17b90d0493c93b8bd5