[INFO] fetching crate ledger-polkadot 0.2.0...
[INFO] testing ledger-polkadot-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate ledger-polkadot 0.2.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate ledger-polkadot 0.2.0 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 ledger-polkadot 0.2.0
[INFO] finished tweaking crates.io crate ledger-polkadot 0.2.0
[INFO] tweaked toml for crates.io crate ledger-polkadot 0.2.0 written to /workspace/builds/worker-5/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hidapi v0.5.2
[INFO] [stderr]   Downloaded ledger v0.2.5
[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" "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] a730d4e81511983afccc0825ab1446e687965fe04f335b2d8a1c20adda9d08cf
[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" "a730d4e81511983afccc0825ab1446e687965fe04f335b2d8a1c20adda9d08cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a730d4e81511983afccc0825ab1446e687965fe04f335b2d8a1c20adda9d08cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a730d4e81511983afccc0825ab1446e687965fe04f335b2d8a1c20adda9d08cf", kill_on_drop: false }`
[INFO] [stdout] a730d4e81511983afccc0825ab1446e687965fe04f335b2d8a1c20adda9d08cf
[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" "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] d7b7ed33391ad52a7099993df2626170f8859b23fbaf63727d21fb87dd9d2876
[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" "d7b7ed33391ad52a7099993df2626170f8859b23fbaf63727d21fb87dd9d2876", kill_on_drop: false }`
[INFO] [stderr]    Compiling nix v0.13.1
[INFO] [stderr]    Compiling hidapi v0.5.2
[INFO] [stderr]    Compiling ledger v0.2.5
[INFO] [stderr]    Compiling ledger-polkadot v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.91s
[INFO] running `Command { std: "docker" "inspect" "d7b7ed33391ad52a7099993df2626170f8859b23fbaf63727d21fb87dd9d2876", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7b7ed33391ad52a7099993df2626170f8859b23fbaf63727d21fb87dd9d2876", kill_on_drop: false }`
[INFO] [stdout] d7b7ed33391ad52a7099993df2626170f8859b23fbaf63727d21fb87dd9d2876
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", 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] 8280c6cf140683d3b121e2be6e59711f12d0a874a33d742825787ac760802730
[INFO] running `Command { std: "docker" "start" "-a" "8280c6cf140683d3b121e2be6e59711f12d0a874a33d742825787ac760802730", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling zeroize v1.4.1
[INFO] [stderr]    Compiling curve25519-dalek v3.2.0
[INFO] [stderr]    Compiling ed25519-dalek v1.0.1
[INFO] [stderr]    Compiling ledger-polkadot v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no function or associated item named `from_bytes` found for struct `ed25519_dalek::Signature` in the current scope
[INFO] [stdout]    --> tests/integration_test.rs:116:40
[INFO] [stdout]     |
[INFO] [stdout] 116 |             let signature = Signature::from_bytes(&sig).unwrap();
[INFO] [stdout]     |                                        ^^^^^^^^^^ function or associated item not found in `ed25519_dalek::Signature`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 31  | use crate::ed25519_dalek::ed25519::signature::Signature;
[INFO] [stdout]     |
[INFO] [stdout] help: there is an associated function with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 116 |             let signature = Signature::to_bytes(&sig).unwrap();
[INFO] [stdout]     |                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `verify` found for struct `PublicKey` in the current scope
[INFO] [stdout]    --> tests/integration_test.rs:119:32
[INFO] [stdout]     |
[INFO] [stdout] 119 |             assert!(public_key.verify(&blob, &signature).is_ok());
[INFO] [stdout]     |                                ^^^^^^ method not found in `PublicKey`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/signature-1.3.1/src/verifier.rs:14:8
[INFO] [stdout]     |
[INFO] [stdout] 14  |     fn verify(&self, msg: &[u8], signature: &S) -> Result<(), Error>;
[INFO] [stdout]     |        ------ the method is available for `PublicKey` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 31  | use crate::ed25519_dalek::Verifier;
[INFO] [stdout]     |
[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 E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ledger-polkadot` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "8280c6cf140683d3b121e2be6e59711f12d0a874a33d742825787ac760802730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8280c6cf140683d3b121e2be6e59711f12d0a874a33d742825787ac760802730", kill_on_drop: false }`
[INFO] [stdout] 8280c6cf140683d3b121e2be6e59711f12d0a874a33d742825787ac760802730