[INFO] cloning repository https://github.com/davidko/stk500-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/davidko/stk500-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidko%2Fstk500-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidko%2Fstk500-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dce56fa4ab7a7ce71a050d800355b2d63342daaf
[INFO] documenting davidko/stk500-rs against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidko%2Fstk500-rs" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/davidko/stk500-rs 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 git repo https://github.com/davidko/stk500-rs
[INFO] finished tweaking git repo https://github.com/davidko/stk500-rs
[INFO] tweaked toml for git repo https://github.com/davidko/stk500-rs written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/davidko/stk500-rs 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]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-12/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[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] [stderr]     Blocking waiting for file lock on package cache
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded CoreFoundation-sys v0.1.4
[INFO] [stderr]   Downloaded mach v0.1.2
[INFO] [stderr]   Downloaded IOKit-sys v0.1.5
[INFO] [stderr]   Downloaded libudev v0.2.0
[INFO] [stderr]   Downloaded serialport v3.3.0
[INFO] [stderr]   Downloaded mio-serial v3.3.1
[INFO] [stderr]   Downloaded tokio-serial v4.3.3
[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] e2e046fc38dca52eb2b0e055bada97250a7b17bec02de556a7dc2441ef71a092
[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" "e2e046fc38dca52eb2b0e055bada97250a7b17bec02de556a7dc2441ef71a092", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2e046fc38dca52eb2b0e055bada97250a7b17bec02de556a7dc2441ef71a092", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2e046fc38dca52eb2b0e055bada97250a7b17bec02de556a7dc2441ef71a092", kill_on_drop: false }`
[INFO] [stdout] e2e046fc38dca52eb2b0e055bada97250a7b17bec02de556a7dc2441ef71a092
[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] be75daeeeda28b67947228b30eadeebf247ccafd60d9541996f6feedcb3fd71b
[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" "be75daeeeda28b67947228b30eadeebf247ccafd60d9541996f6feedcb3fd71b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking tokio-proto v0.1.1
[INFO] [stderr]  Documenting stk500 v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0053]: method `encode` has an incompatible type for trait
[INFO] [stdout]    --> src/codec.rs:272:5
[INFO] [stdout]     |
[INFO] [stdout] 272 | /     fn encode(
[INFO] [stdout] 273 | |         &mut self, 
[INFO] [stdout] 274 | |         item: Self::Item, 
[INFO] [stdout] 275 | |         dst: &mut BytesMut
[INFO] [stdout] ...   |
[INFO] [stdout] 282 | |         Ok(())
[INFO] [stdout] 283 | |     }
[INFO] [stdout]     | |_____^ expected struct `bytes::bytes::BytesMut`, found struct `bytes::BytesMut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected fn pointer `fn(&mut codec::Stk500Codec, codec::Packet, &mut bytes::bytes::BytesMut) -> std::result::Result<_, _>`
[INFO] [stdout]                found fn pointer `fn(&mut codec::Stk500Codec, codec::Packet, &mut bytes::BytesMut) -> std::result::Result<_, _>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `decode` has an incompatible type for trait
[INFO] [stdout]    --> src/codec.rs:314:5
[INFO] [stdout]     |
[INFO] [stdout] 314 | /     fn decode(
[INFO] [stdout] 315 | |         &mut self,
[INFO] [stdout] 316 | |         src: &mut BytesMut,
[INFO] [stdout] 317 | |     ) -> Result<Option<Self::Item>, Self::Error> {
[INFO] [stdout] ...   |
[INFO] [stdout] 335 | |         
[INFO] [stdout] 336 | |     }
[INFO] [stdout]     | |_____^ expected struct `bytes::bytes::BytesMut`, found struct `bytes::BytesMut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected fn pointer `fn(&mut codec::Stk500Codec, &mut bytes::bytes::BytesMut) -> std::result::Result<_, _>`
[INFO] [stdout]                found fn pointer `fn(&mut codec::Stk500Codec, &mut bytes::BytesMut) -> std::result::Result<_, _>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0053`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `stk500`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name stk500 src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-c5714e68d7e46dbf.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-f6a782863e1804d0.rmeta --extern futures_timer=/opt/rustwide/target/debug/deps/libfutures_timer-7b35073a94c7444d.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-95a9d57e67df36ac.rmeta --extern tokio_core=/opt/rustwide/target/debug/deps/libtokio_core-9fb25f0aba8ea25a.rmeta --extern tokio_io=/opt/rustwide/target/debug/deps/libtokio_io-ff9583a5e00e0457.rmeta --extern tokio_proto=/opt/rustwide/target/debug/deps/libtokio_proto-abcac6ee969f0665.rmeta --extern tokio_service=/opt/rustwide/target/debug/deps/libtokio_service-39c1616a88853355.rmeta --cap-lints=warn --crate-version 0.1.3` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "be75daeeeda28b67947228b30eadeebf247ccafd60d9541996f6feedcb3fd71b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be75daeeeda28b67947228b30eadeebf247ccafd60d9541996f6feedcb3fd71b", kill_on_drop: false }`
[INFO] [stdout] be75daeeeda28b67947228b30eadeebf247ccafd60d9541996f6feedcb3fd71b