[INFO] fetching crate jwt-compact-preview 0.3.8...
[INFO] documenting jwt-compact-preview-0.3.8 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate jwt-compact-preview 0.3.8 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate jwt-compact-preview 0.3.8 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 jwt-compact-preview 0.3.8
[INFO] finished tweaking crates.io crate jwt-compact-preview 0.3.8
[INFO] tweaked toml for crates.io crate jwt-compact-preview 0.3.8 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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 p256 v0.4.1
[INFO] [stderr]   Downloaded k256 v0.4.2
[INFO] [stderr]   Downloaded rsa v0.3.0
[INFO] [stderr]   Downloaded ed25519-compact v0.1.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 788a2bb0253d99e5ac07b8bff03c0e4ed9481d0b887ac2c66acb4a4b01702458
[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" "788a2bb0253d99e5ac07b8bff03c0e4ed9481d0b887ac2c66acb4a4b01702458", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "788a2bb0253d99e5ac07b8bff03c0e4ed9481d0b887ac2c66acb4a4b01702458", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "788a2bb0253d99e5ac07b8bff03c0e4ed9481d0b887ac2c66acb4a4b01702458", kill_on_drop: false }`
[INFO] [stdout] 788a2bb0253d99e5ac07b8bff03c0e4ed9481d0b887ac2c66acb4a4b01702458
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] [stdout] 1405127c1d15346b479b694e693039891fa5ce1c8d9275e4df711f7b78edef19
[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" "1405127c1d15346b479b694e693039891fa5ce1c8d9275e4df711f7b78edef19", kill_on_drop: false }`
[INFO] [stderr]     Checking const-oid v0.1.0
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking half v1.6.0
[INFO] [stderr]    Compiling num-bigint-dig v0.6.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking num-iter v0.1.41
[INFO] [stderr]     Checking num-bigint v0.2.6
[INFO] [stderr]     Checking ed25519-compact v0.1.6
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking crypto-mac v0.9.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking signature v1.2.2
[INFO] [stderr]     Checking elliptic-curve v0.5.0
[INFO] [stderr]     Checking hmac v0.9.0
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking ecdsa v0.7.2
[INFO] [stderr]     Checking p256 v0.4.1
[INFO] [stderr]     Checking k256 v0.4.2
[INFO] [stderr]     Checking simple_asn1 v0.4.1
[INFO] [stderr]     Checking pem v0.8.1
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking rsa v0.3.0
[INFO] [stderr]  Documenting jwt-compact-preview v0.3.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.28s
[INFO] running `Command { std: "docker" "inspect" "1405127c1d15346b479b694e693039891fa5ce1c8d9275e4df711f7b78edef19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1405127c1d15346b479b694e693039891fa5ce1c8d9275e4df711f7b78edef19", kill_on_drop: false }`
[INFO] [stdout] 1405127c1d15346b479b694e693039891fa5ce1c8d9275e4df711f7b78edef19