[INFO] cloning repository https://github.com/hank121314/HD-wallet-Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hank121314/HD-wallet-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhank121314%2FHD-wallet-Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhank121314%2FHD-wallet-Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cd8fa1feb621b29e8b345f217592dea1837676e8
[INFO] checking hank121314/HD-wallet-Rust against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhank121314%2FHD-wallet-Rust" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hank121314/HD-wallet-Rust on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hank121314/HD-wallet-Rust
[INFO] finished tweaking git repo https://github.com/hank121314/HD-wallet-Rust
[INFO] tweaked toml for git repo https://github.com/hank121314/HD-wallet-Rust written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hank121314/HD-wallet-Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bip32 v0.2.2
[INFO] [stderr]   Downloaded serde_json v1.0.70
[INFO] [stderr]   Downloaded hkd32 v0.6.0
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 550460d72e70581658354156351a34db7a6972ffdb22c9694261fe72eb94e71e
[INFO] running `Command { std: "docker" "start" "-a" "550460d72e70581658354156351a34db7a6972ffdb22c9694261fe72eb94e71e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "550460d72e70581658354156351a34db7a6972ffdb22c9694261fe72eb94e71e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "550460d72e70581658354156351a34db7a6972ffdb22c9694261fe72eb94e71e", kill_on_drop: false }`
[INFO] [stdout] 550460d72e70581658354156351a34db7a6972ffdb22c9694261fe72eb94e71e
[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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da2bcc7ffe0f335705a1595719d8664f03367f4748c2fd4bbb6f2d03d15dac55
[INFO] running `Command { std: "docker" "start" "-a" "da2bcc7ffe0f335705a1595719d8664f03367f4748c2fd4bbb6f2d03d15dac55", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]     Checking base64ct v1.0.1
[INFO] [stderr]     Checking der v0.4.4
[INFO] [stderr]    Compiling serde_json v1.0.70
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking ff v0.10.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking password-hash v0.3.2
[INFO] [stderr]     Checking group v0.10.0
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking generic-array v0.14.4
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.11.1
[INFO] [stderr]     Checking pbkdf2 v0.8.0
[INFO] [stderr]     Checking sha2 v0.9.8
[INFO] [stderr]     Checking hmac v0.11.0
[INFO] [stderr]     Checking signature v1.3.2
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]     Checking ripemd160 v0.9.1
[INFO] [stderr]     Checking bs58 v0.4.0
[INFO] [stderr]     Checking pbkdf2 v0.9.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling zeroize_derive v1.2.2
[INFO] [stderr]    Compiling snafu-derive v0.6.10
[INFO] [stderr]     Checking zeroize v1.4.3
[INFO] [stderr]     Checking crypto-bigint v0.2.11
[INFO] [stderr]     Checking hkd32 v0.6.0
[INFO] [stderr]     Checking snafu v0.6.10
[INFO] [stderr]     Checking elliptic-curve v0.10.6
[INFO] [stderr]     Checking hd-wallet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `hex` is imported redundantly
[INFO] [stdout]  --> src/bip39.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use hex;
[INFO] [stdout]   |     ^^^ the item `hex` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ecdsa v0.12.4
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking k256 v0.9.6
[INFO] [stderr]     Checking bip32 v0.2.2
[INFO] [stdout] warning: the item `hex` is imported redundantly
[INFO] [stdout]  --> src/bip39.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use hex;
[INFO] [stdout]   |     ^^^ the item `hex` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.13s
[INFO] running `Command { std: "docker" "inspect" "da2bcc7ffe0f335705a1595719d8664f03367f4748c2fd4bbb6f2d03d15dac55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da2bcc7ffe0f335705a1595719d8664f03367f4748c2fd4bbb6f2d03d15dac55", kill_on_drop: false }`
[INFO] [stdout] da2bcc7ffe0f335705a1595719d8664f03367f4748c2fd4bbb6f2d03d15dac55
[INFO] checking hank121314/HD-wallet-Rust against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhank121314%2FHD-wallet-Rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hank121314/HD-wallet-Rust on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hank121314/HD-wallet-Rust
[INFO] finished tweaking git repo https://github.com/hank121314/HD-wallet-Rust
[INFO] tweaked toml for git repo https://github.com/hank121314/HD-wallet-Rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/hank121314/HD-wallet-Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93135c30f0e5516c07e12cfa113d277d0167551c2026bca85d44136096e37526
[INFO] running `Command { std: "docker" "start" "-a" "93135c30f0e5516c07e12cfa113d277d0167551c2026bca85d44136096e37526", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93135c30f0e5516c07e12cfa113d277d0167551c2026bca85d44136096e37526", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93135c30f0e5516c07e12cfa113d277d0167551c2026bca85d44136096e37526", kill_on_drop: false }`
[INFO] [stdout] 93135c30f0e5516c07e12cfa113d277d0167551c2026bca85d44136096e37526
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd6ecba8a72a61c174f2f68815d331528e0a0513ad567e7324f0d240bdb570a2
[INFO] running `Command { std: "docker" "start" "-a" "cd6ecba8a72a61c174f2f68815d331528e0a0513ad567e7324f0d240bdb570a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking cpufeatures v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking base64ct v1.0.1
[INFO] [stderr]    Compiling serde_json v1.0.70
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]     Checking der v0.4.4
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/der-0.4.4/src/encoder.rs:28:18
[INFO] [stdout]    |
[INFO] [stdout] 28 |             self.error(ErrorKind::Failed)?;
[INFO] [stdout]    |                  ^^^^^ cannot infer type of the type parameter `T` declared on the method `error`
[INFO] [stdout]    |
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]    |
[INFO] [stdout] 28 |             self.error::<T>(ErrorKind::Failed)?;
[INFO] [stdout]    |                       +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/der-0.4.4/src/encoder.rs:182:18
[INFO] [stdout]     |
[INFO] [stdout] 182 |             self.error(ErrorKind::Overlength)?;
[INFO] [stdout]     |                  ^^^^^ cannot infer type of the type parameter `T` declared on the method `error`
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 182 |             self.error::<T>(ErrorKind::Overlength)?;
[INFO] [stdout]     |                       +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `der` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "cd6ecba8a72a61c174f2f68815d331528e0a0513ad567e7324f0d240bdb570a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd6ecba8a72a61c174f2f68815d331528e0a0513ad567e7324f0d240bdb570a2", kill_on_drop: false }`
[INFO] [stdout] cd6ecba8a72a61c174f2f68815d331528e0a0513ad567e7324f0d240bdb570a2