[INFO] fetching crate yubikey 0.4.2...
[INFO] checking yubikey-0.4.2 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate yubikey 0.4.2 into /workspace/builds/worker-54/source
[INFO] validating manifest of crates.io crate yubikey 0.4.2 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yubikey 0.4.2
[INFO] finished tweaking crates.io crate yubikey 0.4.2
[INFO] tweaked toml for crates.io crate yubikey 0.4.2 written to /workspace/builds/worker-54/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70500919aa9ab5c6feab467fee4c74577d312b85745dc8acb7078b56104a128d
[INFO] running `Command { std: "docker" "start" "-a" "70500919aa9ab5c6feab467fee4c74577d312b85745dc8acb7078b56104a128d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70500919aa9ab5c6feab467fee4c74577d312b85745dc8acb7078b56104a128d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70500919aa9ab5c6feab467fee4c74577d312b85745dc8acb7078b56104a128d", kill_on_drop: false }`
[INFO] [stdout] 70500919aa9ab5c6feab467fee4c74577d312b85745dc8acb7078b56104a128d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0fa7d25b68f542643e3a16cb80204f6e64f0232904333b6459cb1b9cdc613d15
[INFO] running `Command { std: "docker" "start" "-a" "0fa7d25b68f542643e3a16cb80204f6e64f0232904333b6459cb1b9cdc613d15", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]     Checking const-oid v0.6.1
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling wyz v0.2.0
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]    Compiling oid-registry v0.1.5
[INFO] [stderr]     Checking cookie-factory v0.3.2
[INFO] [stderr]     Checking data-encoding v2.3.2
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.2
[INFO] [stderr]    Compiling lexical-core v0.7.6
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[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.11.1
[INFO] [stderr]     Checking block-buffer v0.9.0
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[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking signature v1.3.1
[INFO] [stderr]     Checking group v0.10.0
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking x509 v0.2.0
[INFO] [stderr]     Checking pem v0.8.3
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]     Checking rusticata-macros v3.2.0
[INFO] [stderr]    Compiling zeroize_derive v1.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling der-oid-macro v0.4.0
[INFO] [stderr]     Checking der-parser v5.1.2
[INFO] [stderr]     Checking zeroize v1.3.0
[INFO] [stderr]     Checking crypto-bigint v0.2.9
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[INFO] [stderr]     Checking elliptic-curve v0.10.6
[INFO] [stderr]     Checking thiserror v1.0.29
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[INFO] [stderr]     Checking ecdsa v0.12.4
[INFO] [stderr]     Checking p384 v0.8.0
[INFO] [stderr]     Checking rsa v0.4.1
[INFO] [stderr]     Checking p256 v0.9.0
[INFO] [stderr]     Checking x509-parser v0.9.2
[INFO] [stderr]     Checking yubikey v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `issuer`
[INFO] [stdout]    --> src/certificate.rs:323:5
[INFO] [stdout]     |
[INFO] [stdout] 323 |     issuer: String,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `issuer`
[INFO] [stdout]    --> src/certificate.rs:323:5
[INFO] [stdout]     |
[INFO] [stdout] 323 |     issuer: String,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.67s
[INFO] running `Command { std: "docker" "inspect" "0fa7d25b68f542643e3a16cb80204f6e64f0232904333b6459cb1b9cdc613d15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fa7d25b68f542643e3a16cb80204f6e64f0232904333b6459cb1b9cdc613d15", kill_on_drop: false }`
[INFO] [stdout] 0fa7d25b68f542643e3a16cb80204f6e64f0232904333b6459cb1b9cdc613d15