[INFO] fetching crate libsdp 0.1.2...
[INFO] testing libsdp-0.1.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate libsdp 0.1.2 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate libsdp 0.1.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libsdp 0.1.2
[INFO] finished tweaking crates.io crate libsdp 0.1.2
[INFO] tweaked toml for crates.io crate libsdp 0.1.2 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee45c0089ee8cbaf65ad1ce97cdff260a740e5b210c0b0fe18b9edbf33c11f99
[INFO] running `Command { std: "docker" "start" "-a" "ee45c0089ee8cbaf65ad1ce97cdff260a740e5b210c0b0fe18b9edbf33c11f99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee45c0089ee8cbaf65ad1ce97cdff260a740e5b210c0b0fe18b9edbf33c11f99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee45c0089ee8cbaf65ad1ce97cdff260a740e5b210c0b0fe18b9edbf33c11f99", kill_on_drop: false }`
[INFO] [stdout] ee45c0089ee8cbaf65ad1ce97cdff260a740e5b210c0b0fe18b9edbf33c11f99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "RUSTFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a98dc4aef497bd6908788c82cf1a8adb85944feac878258a56db3039e098127b
[INFO] running `Command { std: "docker" "start" "-a" "a98dc4aef497bd6908788c82cf1a8adb85944feac878258a56db3039e098127b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libsdp v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: `?` couldn't convert the error to `nom::Err<nom::error::Error<&[u8]>>`
[INFO] [stdout]    --> src/media/parse.rs:47:55
[INFO] [stdout]     |
[INFO] [stdout] 37  | pub fn parse_media(input: &[u8]) -> IResult<&[u8], SdpMedia> {
[INFO] [stdout]     |                                     ------------------------ expected `nom::Err<nom::error::Error<&[u8]>>` because of this
[INFO] [stdout] ...
[INFO] [stdout] 47  |     let (input, formats) = parse_attribute_list(input)?;
[INFO] [stdout]     |                                                       ^ the trait `From<nom::Err<(&[u8], nom::error::ErrorKind)>>` is not implemented for `nom::Err<nom::error::Error<&[u8]>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]     = note: required because of the requirements on the impl of `FromResidual<Result<Infallible, nom::Err<(&[u8], nom::error::ErrorKind)>>>` for `Result<(&[u8], media::SdpMedia), nom::Err<nom::error::Error<&[u8]>>>`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error to `nom::Err<nom::error::Error<&[u8]>>`
[INFO] [stdout]    --> src/offer.rs:23:61
[INFO] [stdout]     |
[INFO] [stdout] 19  | pub fn parse_sdp_offer(input: &[u8]) -> IResult<&[u8], SdpOffer> {
[INFO] [stdout]     |                                         ------------------------ expected `nom::Err<nom::error::Error<&[u8]>>` because of this
[INFO] [stdout] ...
[INFO] [stdout] 23  |     let (input, optional) = parse_optional_attributes(input)?;
[INFO] [stdout]     |                                                             ^ the trait `From<nom::Err<(&[u8], nom::error::ErrorKind)>>` is not implemented for `nom::Err<nom::error::Error<&[u8]>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]     = note: required because of the requirements on the impl of `FromResidual<Result<Infallible, nom::Err<(&[u8], nom::error::ErrorKind)>>>` for `Result<(&[u8], SdpOffer), nom::Err<nom::error::Error<&[u8]>>>`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error to `nom::Err<nom::error::Error<&[u8]>>`
[INFO] [stdout]    --> src/offer.rs:24:61
[INFO] [stdout]     |
[INFO] [stdout] 19  | pub fn parse_sdp_offer(input: &[u8]) -> IResult<&[u8], SdpOffer> {
[INFO] [stdout]     |                                         ------------------------ expected `nom::Err<nom::error::Error<&[u8]>>` because of this
[INFO] [stdout] ...
[INFO] [stdout] 24  |     let (input, attributes) = parse_global_attributes(input)?;
[INFO] [stdout]     |                                                             ^ the trait `From<nom::Err<(&[u8], nom::error::ErrorKind)>>` is not implemented for `nom::Err<nom::error::Error<&[u8]>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]     = note: required because of the requirements on the impl of `FromResidual<Result<Infallible, nom::Err<(&[u8], nom::error::ErrorKind)>>>` for `Result<(&[u8], SdpOffer), nom::Err<nom::error::Error<&[u8]>>>`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error to `nom::Err<nom::error::Error<&[u8]>>`
[INFO] [stdout]    --> src/offer.rs:25:50
[INFO] [stdout]     |
[INFO] [stdout] 19  | pub fn parse_sdp_offer(input: &[u8]) -> IResult<&[u8], SdpOffer> {
[INFO] [stdout]     |                                         ------------------------ expected `nom::Err<nom::error::Error<&[u8]>>` because of this
[INFO] [stdout] ...
[INFO] [stdout] 25  |     let (input, media) = parse_media_lines(input)?;
[INFO] [stdout]     |                                                  ^ the trait `From<nom::Err<(&[u8], nom::error::ErrorKind)>>` is not implemented for `nom::Err<nom::error::Error<&[u8]>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]     = note: required because of the requirements on the impl of `FromResidual<Result<Infallible, nom::Err<(&[u8], nom::error::ErrorKind)>>>` for `Result<(&[u8], SdpOffer), nom::Err<nom::error::Error<&[u8]>>>`
[INFO] [stdout] note: required by `from_residual`
[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 E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libsdp` due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "a98dc4aef497bd6908788c82cf1a8adb85944feac878258a56db3039e098127b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a98dc4aef497bd6908788c82cf1a8adb85944feac878258a56db3039e098127b", kill_on_drop: false }`
[INFO] [stdout] a98dc4aef497bd6908788c82cf1a8adb85944feac878258a56db3039e098127b