[INFO] fetching crate jsonwebkey-convert 0.1.0...
[INFO] testing jsonwebkey-convert-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate jsonwebkey-convert 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate jsonwebkey-convert 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jsonwebkey-convert 0.1.0
[INFO] finished tweaking crates.io crate jsonwebkey-convert 0.1.0
[INFO] tweaked toml for crates.io crate jsonwebkey-convert 0.1.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1dacab9635ce92aa99cc162ddb221a44aad6b1b8981c6519e4472a8ee678af3e
[INFO] running `Command { std: "docker" "start" "-a" "1dacab9635ce92aa99cc162ddb221a44aad6b1b8981c6519e4472a8ee678af3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1dacab9635ce92aa99cc162ddb221a44aad6b1b8981c6519e4472a8ee678af3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dacab9635ce92aa99cc162ddb221a44aad6b1b8981c6519e4472a8ee678af3e", kill_on_drop: false }`
[INFO] [stdout] 1dacab9635ce92aa99cc162ddb221a44aad6b1b8981c6519e4472a8ee678af3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a902fb1ace4e389c4861cc38b306265884f9baaad3058ffc5cd64d3becf508b
[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" "2a902fb1ace4e389c4861cc38b306265884f9baaad3058ffc5cd64d3becf508b", kill_on_drop: false }`
[INFO] [stderr]    Compiling base64-url v1.4.8
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling simple_asn1 v0.4.1
[INFO] [stderr]    Compiling jsonwebkey-convert v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0631]: type mismatch in function arguments
[INFO] [stdout]    --> src/lib.rs:112:53
[INFO] [stdout]     |
[INFO] [stdout] 53  |     Base64Error(#[fail(cause)] base64::DecodeError),
[INFO] [stdout]     |     ----------------------------------------------- found signature of `fn(base64::DecodeError) -> _`
[INFO] [stdout] ...
[INFO] [stdout] 112 |         let n = base64_url::decode(&self.n).map_err(JWKConvertError::Base64Error)?;
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected signature of `fn(base64_url::base64::DecodeError) -> _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0631]: type mismatch in function arguments
[INFO] [stdout]    --> src/lib.rs:113:53
[INFO] [stdout]     |
[INFO] [stdout] 53  |     Base64Error(#[fail(cause)] base64::DecodeError),
[INFO] [stdout]     |     ----------------------------------------------- found signature of `fn(base64::DecodeError) -> _`
[INFO] [stdout] ...
[INFO] [stdout] 113 |         let e = base64_url::decode(&self.e).map_err(JWKConvertError::Base64Error)?;
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected signature of `fn(base64_url::base64::DecodeError) -> _`
[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 E0631`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `jsonwebkey-convert`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "2a902fb1ace4e389c4861cc38b306265884f9baaad3058ffc5cd64d3becf508b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a902fb1ace4e389c4861cc38b306265884f9baaad3058ffc5cd64d3becf508b", kill_on_drop: false }`
[INFO] [stdout] 2a902fb1ace4e389c4861cc38b306265884f9baaad3058ffc5cd64d3becf508b