[INFO] fetching crate mdns-client 0.1.0...
[INFO] testing mdns-client-0.1.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate mdns-client 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate mdns-client 0.1.0
[INFO] finished tweaking crates.io crate mdns-client 0.1.0
[INFO] tweaked toml for crates.io crate mdns-client 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mdns-client 0.1.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 49 packages to latest compatible versions
[INFO] [stderr]       Adding bytes v1.0.1 (available: v1.10.1)
[INFO] [stderr]       Adding dns-message-parser v0.4.6 (available: v0.9.0)
[INFO] [stderr]       Adding pnet v0.27.2 (available: v0.35.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pnet v0.27.2
[INFO] [stderr]   Downloaded pnet_transport v0.27.2
[INFO] [stderr]   Downloaded unicode-xid v0.0.3
[INFO] [stderr]   Downloaded pnet_sys v0.27.2
[INFO] [stderr]   Downloaded pnet_packet v0.27.2
[INFO] [stderr]   Downloaded pnet_macros_support v0.27.2
[INFO] [stderr]   Downloaded glob v0.2.11
[INFO] [stderr]   Downloaded pnet_datalink v0.27.2
[INFO] [stderr]   Downloaded ipnetwork v0.17.0
[INFO] [stderr]   Downloaded pnet_base v0.27.2
[INFO] [stderr]   Downloaded bitflags v0.5.0
[INFO] [stderr]   Downloaded pnet_macros v0.27.2
[INFO] [stderr]   Downloaded syntex_errors v0.42.0
[INFO] [stderr]   Downloaded syntex_pos v0.42.0
[INFO] [stderr]   Downloaded syntex v0.42.2
[INFO] [stderr]   Downloaded dns-message-parser v0.4.6
[INFO] [stderr]   Downloaded syntex_syntax v0.42.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 29e4ea75e4b79c66952af3af0a190450c0b205efbdf0676264cc4b381299084d
[INFO] running `Command { std: "docker" "start" "-a" "29e4ea75e4b79c66952af3af0a190450c0b205efbdf0676264cc4b381299084d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29e4ea75e4b79c66952af3af0a190450c0b205efbdf0676264cc4b381299084d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29e4ea75e4b79c66952af3af0a190450c0b205efbdf0676264cc4b381299084d", kill_on_drop: false }`
[INFO] [stdout] 29e4ea75e4b79c66952af3af0a190450c0b205efbdf0676264cc4b381299084d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 905f72add8c4d6327ecd947ac95c44d6b27ae75ea0f44bf94eaf0d31adcdf0e4
[INFO] running `Command { std: "docker" "start" "-a" "905f72add8c4d6327ecd947ac95c44d6b27ae75ea0f44bf94eaf0d31adcdf0e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-serialize v0.3.25
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling pnet_base v0.27.2
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling pnet v0.27.2
[INFO] [stderr]    Compiling pnet_sys v0.27.2
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling net2 v0.2.39
[INFO] [stderr]    Compiling pnet_macros_support v0.27.2
[INFO] [stderr]    Compiling syntex_pos v0.42.0
[INFO] [stdout] error: cannot find derive macro `RustcEncodable` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syntex_pos-0.42.0/src/lib.rs:253:45
[INFO] [stdout]     |
[INFO] [stdout] 253 | #[derive(PartialEq, Eq, Clone, Debug, Hash, RustcEncodable, RustcDecodable, Copy)]
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `RustcDecodable` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syntex_pos-0.42.0/src/lib.rs:253:61
[INFO] [stdout]     |
[INFO] [stdout] 253 | #[derive(PartialEq, Eq, Clone, Debug, Hash, RustcEncodable, RustcDecodable, Copy)]
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `RustcEncodable` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syntex_pos-0.42.0/src/lib.rs:275:23
[INFO] [stdout]     |
[INFO] [stdout] 275 | #[derive(Copy, Clone, RustcEncodable, RustcDecodable, Eq, PartialEq)]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `RustcDecodable` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syntex_pos-0.42.0/src/lib.rs:275:39
[INFO] [stdout]     |
[INFO] [stdout] 275 | #[derive(Copy, Clone, RustcEncodable, RustcDecodable, Eq, PartialEq)]
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the method `encode` exists for struct `Vec<MultiByteChar>`, but its trait bounds were not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syntex_pos-0.42.0/src/lib.rs:357:50
[INFO] [stdout]     |
[INFO] [stdout] 276 | pub struct MultiByteChar {
[INFO] [stdout]     | ------------------------ doesn't satisfy `MultiByteChar: Encodable`
[INFO] [stdout] ...
[INFO] [stdout] 357 |                 (*self.multibyte_chars.borrow()).encode(s)
[INFO] [stdout]     |                                                  ^^^^^^ method cannot be called on `Vec<MultiByteChar>` due to unsatisfied trait bounds
[INFO] [stdout]     |
[INFO] [stdout]     = note: the following trait bounds were not satisfied:
[INFO] [stdout]             `MultiByteChar: Encodable`
[INFO] [stdout]             which is required by `Vec<MultiByteChar>: Encodable`
[INFO] [stdout]             `MultiByteChar: Encodable`
[INFO] [stdout]             which is required by `[MultiByteChar]: Encodable`
[INFO] [stdout] note: the trait `Encodable` must be implemented
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rustc-serialize-0.3.25/src/serialize.rs:851:1
[INFO] [stdout]     |
[INFO] [stdout] 851 | pub trait Encodable {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `MultiByteChar: Decodable` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syntex_pos-0.42.0/src/lib.rs:401:68
[INFO] [stdout]     |
[INFO] [stdout] 401 |                 try!(d.read_struct_field("multibyte_chars", 5, |d| Decodable::decode(d)));
[INFO] [stdout]     |                                                                    ^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound
[INFO] [stdout]     |
[INFO] [stdout] help: the trait `Decodable` is not implemented for `MultiByteChar`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syntex_pos-0.42.0/src/lib.rs:276:1
[INFO] [stdout]     |
[INFO] [stdout] 276 | pub struct MultiByteChar {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: the following other types implement trait `Decodable`:
[INFO] [stdout]               ()
[INFO] [stdout]               (T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11)
[INFO] [stdout]               (T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11)
[INFO] [stdout]               (T10, T11)
[INFO] [stdout]               (T11,)
[INFO] [stdout]               (T2, T3, T4, T5, T6, T7, T8, T9, T10, T11)
[INFO] [stdout]               (T3, T4, T5, T6, T7, T8, T9, T10, T11)
[INFO] [stdout]               (T4, T5, T6, T7, T8, T9, T10, T11)
[INFO] [stdout]             and 74 others
[INFO] [stdout]     = note: required for `Vec<MultiByteChar>` to implement `Decodable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syntex_pos` (lib) due to 6 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "905f72add8c4d6327ecd947ac95c44d6b27ae75ea0f44bf94eaf0d31adcdf0e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "905f72add8c4d6327ecd947ac95c44d6b27ae75ea0f44bf94eaf0d31adcdf0e4", kill_on_drop: false }`
[INFO] [stdout] 905f72add8c4d6327ecd947ac95c44d6b27ae75ea0f44bf94eaf0d31adcdf0e4
