[INFO] fetching crate enc_file 0.3.7...
[INFO] documenting enc_file-0.3.7 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate enc_file 0.3.7 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate enc_file 0.3.7 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 enc_file 0.3.7
[INFO] finished tweaking crates.io crate enc_file 0.3.7
[INFO] tweaked toml for crates.io crate enc_file 0.3.7 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate enc_file 0.3.7 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 cpuid-bool v0.1.0
[INFO] [stderr]   Downloaded stream-cipher v0.4.1
[INFO] [stderr]   Downloaded universal-hash v0.4.0
[INFO] [stderr]   Downloaded poly1305 v0.6.0
[INFO] [stderr]   Downloaded chacha20 v0.4.3
[INFO] [stderr]   Downloaded polyval v0.4.0
[INFO] [stderr]   Downloaded block-cipher v0.7.1
[INFO] [stderr]   Downloaded aes-gcm-siv v0.5.0
[INFO] [stderr]   Downloaded aes-soft v0.4.0
[INFO] [stderr]   Downloaded aes v0.4.0
[INFO] [stderr]   Downloaded aesni v0.7.0
[INFO] [stderr]   Downloaded blake3 v0.3.6
[INFO] [stderr]   Downloaded aead v0.3.1
[INFO] [stderr]   Downloaded chacha20poly1305 v0.5.1
[INFO] [stderr]   Downloaded generic-array v0.14.2
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fa50563e8b484c772a78bb50675f9ff0e06a61bb6616ba2f5bd09e23800c4187
[INFO] running `Command { std: "docker" "start" "-a" "fa50563e8b484c772a78bb50675f9ff0e06a61bb6616ba2f5bd09e23800c4187", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa50563e8b484c772a78bb50675f9ff0e06a61bb6616ba2f5bd09e23800c4187", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa50563e8b484c772a78bb50675f9ff0e06a61bb6616ba2f5bd09e23800c4187", kill_on_drop: false }`
[INFO] [stdout] fa50563e8b484c772a78bb50675f9ff0e06a61bb6616ba2f5bd09e23800c4187
[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] e078dec0ca92e2e385f379a22a7cf11e87474df365626adee872cfe86fccd89e
[INFO] running `Command { std: "docker" "start" "-a" "e078dec0ca92e2e385f379a22a7cf11e87474df365626adee872cfe86fccd89e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]     Checking cpuid-bool v0.1.0
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]    Compiling generic-array v0.14.2
[INFO] [stderr]    Compiling blake3 v0.3.6
[INFO] [stderr]     Checking universal-hash v0.4.0
[INFO] [stderr]     Checking block-cipher v0.7.1
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking aead v0.3.1
[INFO] [stderr]     Checking stream-cipher v0.4.1
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking polyval v0.4.0
[INFO] [stderr]     Checking poly1305 v0.6.0
[INFO] [stderr]     Checking chacha20 v0.4.3
[INFO] [stderr]     Checking aes-soft v0.4.0
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]     Checking chacha20poly1305 v0.5.1
[INFO] [stderr]     Checking aes v0.4.0
[INFO] [stderr]     Checking aes-gcm-siv v0.5.0
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]     Checking serde v1.0.115
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]  Documenting enc_file v0.3.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.13s
[INFO] running `Command { std: "docker" "inspect" "e078dec0ca92e2e385f379a22a7cf11e87474df365626adee872cfe86fccd89e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e078dec0ca92e2e385f379a22a7cf11e87474df365626adee872cfe86fccd89e", kill_on_drop: false }`
[INFO] [stdout] e078dec0ca92e2e385f379a22a7cf11e87474df365626adee872cfe86fccd89e