[INFO] fetching crate multiwii_serial_protocol_v2 0.1.11...
[INFO] testing multiwii_serial_protocol_v2-0.1.11 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate multiwii_serial_protocol_v2 0.1.11 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate multiwii_serial_protocol_v2 0.1.11 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate multiwii_serial_protocol_v2 0.1.11
[INFO] finished tweaking crates.io crate multiwii_serial_protocol_v2 0.1.11
[INFO] tweaked toml for crates.io crate multiwii_serial_protocol_v2 0.1.11 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2fb3a13c45ea2657bb264295b8d1e305ad5fec0e331677a6a989803fe7da4cac
[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" "2fb3a13c45ea2657bb264295b8d1e305ad5fec0e331677a6a989803fe7da4cac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fb3a13c45ea2657bb264295b8d1e305ad5fec0e331677a6a989803fe7da4cac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fb3a13c45ea2657bb264295b8d1e305ad5fec0e331677a6a989803fe7da4cac", kill_on_drop: false }`
[INFO] [stdout] 2fb3a13c45ea2657bb264295b8d1e305ad5fec0e331677a6a989803fe7da4cac
[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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8bb32045e77659b2e1d54a5c925495300037a7a7a3e7616e809d4663b8310472
[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" "8bb32045e77659b2e1d54a5c925495300037a7a7a3e7616e809d4663b8310472", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.37
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling packed_struct v0.3.0
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling debug-helper v0.3.10
[INFO] [stderr]    Compiling crc-any v2.3.5
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling packed_struct_codegen v0.3.0
[INFO] [stderr]    Compiling multiwii_serial_protocol_v2 v0.1.11 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.67s
[INFO] running `Command { std: "docker" "inspect" "8bb32045e77659b2e1d54a5c925495300037a7a7a3e7616e809d4663b8310472", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bb32045e77659b2e1d54a5c925495300037a7a7a3e7616e809d4663b8310472", kill_on_drop: false }`
[INFO] [stdout] 8bb32045e77659b2e1d54a5c925495300037a7a7a3e7616e809d4663b8310472
[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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b62f1b9937b983c11f9e5223bed636b519189470bf9ac9c5799cf7fa6883423
[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" "6b62f1b9937b983c11f9e5223bed636b519189470bf9ac9c5799cf7fa6883423", kill_on_drop: false }`
[INFO] [stderr]    Compiling multiwii_serial_protocol_v2 v0.1.11 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/packet.rs:336:9
[INFO] [stdout]     |
[INFO] [stdout] 336 |         data: Cow::Owned(vec![0xbe, 0xef])
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `std::vec::Vec`, found enum `std::borrow::Cow`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `std::vec::Vec<u8>`
[INFO] [stdout]                  found enum `std::borrow::Cow<'_, _>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/packet.rs:387:10
[INFO] [stdout]     |
[INFO] [stdout] 387 |             data: Cow::Owned(vec![0x00, 0x00, 0x00])
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `std::vec::Vec`, found enum `std::borrow::Cow`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `std::vec::Vec<u8>`
[INFO] [stdout]                  found enum `std::borrow::Cow<'_, _>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/packet.rs:396:10
[INFO] [stdout]     |
[INFO] [stdout] 396 |             data: Cow::Owned(vec![])
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^ expected struct `std::vec::Vec`, found enum `std::borrow::Cow`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `std::vec::Vec<u8>`
[INFO] [stdout]                  found enum `std::borrow::Cow<'_, _>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/packet.rs:405:10
[INFO] [stdout]     |
[INFO] [stdout] 405 |             data: Cow::Owned(vec![0x44, 0x20, 0x00, 0x80])
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `std::vec::Vec`, found enum `std::borrow::Cow`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `std::vec::Vec<u8>`
[INFO] [stdout]                  found enum `std::borrow::Cow<'_, _>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `multiwii_serial_protocol_v2`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "6b62f1b9937b983c11f9e5223bed636b519189470bf9ac9c5799cf7fa6883423", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b62f1b9937b983c11f9e5223bed636b519189470bf9ac9c5799cf7fa6883423", kill_on_drop: false }`
[INFO] [stdout] 6b62f1b9937b983c11f9e5223bed636b519189470bf9ac9c5799cf7fa6883423