[INFO] fetching crate broot 0.20.3...
[INFO] documenting broot-0.20.3 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate broot 0.20.3 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate broot 0.20.3 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate broot 0.20.3
[INFO] finished tweaking crates.io crate broot 0.20.3
[INFO] tweaked toml for crates.io crate broot 0.20.3 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate broot 0.20.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded file-size v1.0.2
[INFO] [stderr]   Downloaded lazy-regex v0.1.4
[INFO] [stderr]   Downloaded strict v0.1.4
[INFO] [stderr]   Downloaded minimad v0.6.5
[INFO] [stderr]   Downloaded bytemuck v1.3.1
[INFO] [stderr]   Downloaded simplelog v0.7.6
[INFO] [stderr]   Downloaded is_executable v0.1.2
[INFO] [stderr]   Downloaded termimad v0.8.26
[INFO] [stderr]   Downloaded image v0.23.8
[INFO] [stderr]   Downloaded bet v0.3.4
[INFO] [stderr]   Downloaded secular v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb60bec71edd0813492c322ccab944a3f358dc551fa80633f097e56410601db2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cb60bec71edd0813492c322ccab944a3f358dc551fa80633f097e56410601db2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb60bec71edd0813492c322ccab944a3f358dc551fa80633f097e56410601db2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb60bec71edd0813492c322ccab944a3f358dc551fa80633f097e56410601db2", kill_on_drop: false }`
[INFO] [stdout] cb60bec71edd0813492c322ccab944a3f358dc551fa80633f097e56410601db2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2020-08-29" "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] 2c8a2308b3be14f45ca5babef1976d5906f4e7c2fdd037890218439555a39abf
[INFO] running `Command { std: "docker" "start" "-a" "2c8a2308b3be14f45ca5babef1976d5906f4e7c2fdd037890218439555a39abf", kill_on_drop: false }`
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking bytemuck v1.3.1
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking open v1.4.0
[INFO] [stderr]     Checking bet v0.3.4
[INFO] [stderr]     Checking custom_error v1.7.1
[INFO] [stderr]     Checking id-arena v2.2.1
[INFO] [stderr]     Checking secular v0.2.0
[INFO] [stderr]     Checking umask v1.0.0
[INFO] [stderr]     Checking strict v0.1.4
[INFO] [stderr]     Checking pathdiff v0.1.0
[INFO] [stderr]     Checking file-size v1.0.2
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]    Compiling indexmap v1.5.1
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking minimad v0.6.5
[INFO] [stderr]     Checking lazy-regex v0.1.4
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking mio v0.7.0
[INFO] [stderr]     Checking flate2 v1.0.17
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking users v0.9.1
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking directories v2.0.2
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]    Compiling libz-sys v1.1.0
[INFO] [stderr]    Compiling onig_sys v69.5.0
[INFO] [stderr]    Compiling libgit2-sys v0.10.0
[INFO] [stderr]    Compiling ansi_colours v1.0.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking rayon-core v1.7.1
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]     Checking tiff v0.5.0
[INFO] [stderr]     Checking png v0.16.7
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]     Checking crossterm v0.17.7
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking num-iter v0.1.41
[INFO] [stderr]     Checking plist v1.0.0
[INFO] [stderr]     Checking simplelog v0.7.6
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_macros v0.8.0
[INFO] [stderr]     Checking onig v6.0.0
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking termimad v0.8.26
[INFO] [stderr]     Checking syntect v4.4.0
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking git2 v0.11.0
[INFO] [stderr]    Compiling broot v0.20.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking image v0.23.8
[INFO] [stderr]  Documenting broot v0.20.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 00s
[INFO] running `Command { std: "docker" "inspect" "2c8a2308b3be14f45ca5babef1976d5906f4e7c2fdd037890218439555a39abf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c8a2308b3be14f45ca5babef1976d5906f4e7c2fdd037890218439555a39abf", kill_on_drop: false }`
[INFO] [stdout] 2c8a2308b3be14f45ca5babef1976d5906f4e7c2fdd037890218439555a39abf