[INFO] fetching crate ledger-polkadot 0.2.0...
[INFO] checking ledger-polkadot-0.2.0 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[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 ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2304c16fea394946b9e9a9a6539b7811f6ee830f93c9487a8ea8792fb61e9a38
[INFO] running `Command { std: "docker" "start" "-a" "2304c16fea394946b9e9a9a6539b7811f6ee830f93c9487a8ea8792fb61e9a38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2304c16fea394946b9e9a9a6539b7811f6ee830f93c9487a8ea8792fb61e9a38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2304c16fea394946b9e9a9a6539b7811f6ee830f93c9487a8ea8792fb61e9a38", kill_on_drop: false }`
[INFO] [stdout] 2304c16fea394946b9e9a9a6539b7811f6ee830f93c9487a8ea8792fb61e9a38
[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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1daa9981d653957d9236d049da5bff05a3e7c2ce582e7e30a3806a58d04ec4fd
[INFO] running `Command { std: "docker" "start" "-a" "1daa9981d653957d9236d049da5bff05a3e7c2ce582e7e30a3806a58d04ec4fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking gimli v0.24.0
[INFO] [stderr]     Checking rustc-demangle v0.1.20
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking object v0.25.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking sha2 v0.9.5
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]    Compiling hidapi v0.5.2
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking nix v0.13.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking addr2line v0.15.2
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling zeroize_derive v1.1.0
[INFO] [stderr]     Checking zeroize v1.4.1
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking curve25519-dalek v3.1.0
[INFO] [stderr]     Checking ledger v0.2.5
[INFO] [stderr]     Checking ledger-polkadot v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking ed25519-dalek v1.0.1
[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`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "1daa9981d653957d9236d049da5bff05a3e7c2ce582e7e30a3806a58d04ec4fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1daa9981d653957d9236d049da5bff05a3e7c2ce582e7e30a3806a58d04ec4fd", kill_on_drop: false }`
[INFO] [stdout] 1daa9981d653957d9236d049da5bff05a3e7c2ce582e7e30a3806a58d04ec4fd