[INFO] fetching crate yubikey-cli 0.0.1...
[INFO] documenting yubikey-cli-0.0.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate yubikey-cli 0.0.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate yubikey-cli 0.0.1 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yubikey-cli 0.0.1
[INFO] finished tweaking crates.io crate yubikey-cli 0.0.1
[INFO] tweaked toml for crates.io crate yubikey-cli 0.0.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate yubikey-cli 0.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded signature v1.0.0-pre.1
[INFO] [stderr]   Downloaded yubikey-piv v0.0.3
[INFO] [stderr]   Downloaded secrecy v0.5.1
[INFO] [stderr]   Downloaded pcsc v2.3.0
[INFO] [stderr]   Downloaded rusticata-macros v2.0.3
[INFO] [stderr]   Downloaded zeroize v1.0.0
[INFO] [stderr]   Downloaded x509-parser v0.6.0
[INFO] [stderr]   Downloaded der-parser v3.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "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] 92bf92d67d798415902361644255e6327bea38ec009399e4349944ac0699d8cb
[INFO] running `Command { std: "docker" "start" "-a" "92bf92d67d798415902361644255e6327bea38ec009399e4349944ac0699d8cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92bf92d67d798415902361644255e6327bea38ec009399e4349944ac0699d8cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92bf92d67d798415902361644255e6327bea38ec009399e4349944ac0699d8cb", kill_on_drop: false }`
[INFO] [stdout] 92bf92d67d798415902361644255e6327bea38ec009399e4349944ac0699d8cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "RUSTDOCFLAGS=--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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 571c3ba227351b618815226e2a22cafa8e1b317d96e4b9e494e122ee6a4db42e
[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" "571c3ba227351b618815226e2a22cafa8e1b317d96e4b9e494e122ee6a4db42e", 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] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling cc v1.0.47
[INFO] [stderr]     Checking static_assertions v0.3.4
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling libm v0.1.4
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]     Checking zeroize v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking subtle v2.2.2
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-bigint-dig v0.5.0
[INFO] [stderr]    Compiling nom v5.0.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling pcsc-sys v1.2.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking secrecy v0.5.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking typenum v1.11.2
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]    Compiling lexical-core v0.4.6
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking pcsc v2.3.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking block-cipher-trait v0.6.2
[INFO] [stderr]     Checking des v0.3.0
[INFO] [stderr]     Checking signature v1.0.0-pre.1
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking sha2 v0.8.0
[INFO] [stderr]     Checking sha-1 v0.8.1
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking ecdsa v0.1.0
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking pbkdf2 v0.3.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]     Checking rusticata-macros v2.0.3
[INFO] [stderr]     Checking der-parser v3.0.3
[INFO] [stderr]     Checking x509-parser v0.6.0
[INFO] [stderr]    Compiling zeroize_derive v0.10.0
[INFO] [stderr]    Compiling gumdrop_derive v0.7.0
[INFO] [stderr]     Checking zeroize v0.10.1
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking gumdrop v0.7.0
[INFO] [stderr]     Checking rsa v0.1.4
[INFO] [stderr]     Checking yubikey-piv v0.0.3
[INFO] [stderr]     Checking yubikey-cli v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting yubikey-cli v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 57.92s
[INFO] running `Command { std: "docker" "inspect" "571c3ba227351b618815226e2a22cafa8e1b317d96e4b9e494e122ee6a4db42e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "571c3ba227351b618815226e2a22cafa8e1b317d96e4b9e494e122ee6a4db42e", kill_on_drop: false }`
[INFO] [stdout] 571c3ba227351b618815226e2a22cafa8e1b317d96e4b9e494e122ee6a4db42e