[INFO] fetching crate rmp-serde 0.15.4...
[INFO] checking rmp-serde-0.15.4 against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781
[INFO] extracting crate rmp-serde 0.15.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rmp-serde 0.15.4 on toolchain 195ad4830e11a544391abe296b146450dea8411b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rmp-serde 0.15.4
[INFO] finished tweaking crates.io crate rmp-serde 0.15.4
[INFO] tweaked toml for crates.io crate rmp-serde 0.15.4 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e500e4b7702053a774dd28e9332f35fe8a6659611f21794b4a649e1e86b5e0b7
[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" "e500e4b7702053a774dd28e9332f35fe8a6659611f21794b4a649e1e86b5e0b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e500e4b7702053a774dd28e9332f35fe8a6659611f21794b4a649e1e86b5e0b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e500e4b7702053a774dd28e9332f35fe8a6659611f21794b4a649e1e86b5e0b7", kill_on_drop: false }`
[INFO] [stdout] e500e4b7702053a774dd28e9332f35fe8a6659611f21794b4a649e1e86b5e0b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca30d5f560e19ddfa4daa55f1e232b3250c4006f9954aaa700545fdbd5fb08c3
[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" "ca30d5f560e19ddfa4daa55f1e232b3250c4006f9954aaa700545fdbd5fb08c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking rmp-serde v0.15.4 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> tests/decode_derive.rs:49:6
[INFO] [stdout]    |
[INFO] [stdout] 49 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> tests/decode_derive.rs:66:6
[INFO] [stdout]    |
[INFO] [stdout] 66 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `rmpv`
[INFO] [stdout]    --> tests/round.rs:626:17
[INFO] [stdout]     |
[INFO] [stdout] 626 |                 rmpv::decode::value::read_value(&mut serialized.as_slice())
[INFO] [stdout]     |                 ^^^^ use of undeclared crate or module `rmpv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rmp-serde`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ca30d5f560e19ddfa4daa55f1e232b3250c4006f9954aaa700545fdbd5fb08c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca30d5f560e19ddfa4daa55f1e232b3250c4006f9954aaa700545fdbd5fb08c3", kill_on_drop: false }`
[INFO] [stdout] ca30d5f560e19ddfa4daa55f1e232b3250c4006f9954aaa700545fdbd5fb08c3