[INFO] fetching crate dtool 0.10.1...
[INFO] documenting dtool-0.10.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate dtool 0.10.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate dtool 0.10.1 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 dtool 0.10.1
[INFO] finished tweaking crates.io crate dtool 0.10.1
[INFO] tweaked toml for crates.io crate dtool 0.10.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate dtool 0.10.1 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ecdsa v0.7.2
[INFO] [stderr]   Downloaded madato v0.5.3
[INFO] [stderr]   Downloaded bs58 v0.3.0
[INFO] [stderr]   Downloaded k256 v0.4.2
[INFO] [stderr]   Downloaded const-oid v0.1.0
[INFO] [stderr]   Downloaded parity-codec v3.5.4
[INFO] [stderr]   Downloaded csv v1.1.2
[INFO] [stderr]   Downloaded escaper v0.1.0
[INFO] [stderr]   Downloaded signature_derive v1.0.0-pre.2
[INFO] [stderr]   Downloaded signatory-secp256k1 v0.21.0
[INFO] [stderr]   Downloaded yogcrypt v0.0.0
[INFO] [stderr]   Downloaded signatory v0.21.0
[INFO] [stderr]   Downloaded ring-fork-dtool v0.16.13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stdout] 263c5346721f5475d18fcbc4efebc60dc19eeee05583a745fc129a6d01c8bf41
[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" "263c5346721f5475d18fcbc4efebc60dc19eeee05583a745fc129a6d01c8bf41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "263c5346721f5475d18fcbc4efebc60dc19eeee05583a745fc129a6d01c8bf41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "263c5346721f5475d18fcbc4efebc60dc19eeee05583a745fc129a6d01c8bf41", kill_on_drop: false }`
[INFO] [stdout] 263c5346721f5475d18fcbc4efebc60dc19eeee05583a745fc129a6d01c8bf41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] fc582e0b7054bf3c419140f9e5fb9c87d53543dfeba7c9f398331d43dbdfdf7c
[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" "fc582e0b7054bf3c419140f9e5fb9c87d53543dfeba7c9f398331d43dbdfdf7c", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.41
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]     Checking subtle v2.2.2
[INFO] [stderr]     Checking const-oid v0.1.0
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking regex-syntax v0.6.13
[INFO] [stderr]     Checking encode_unicode v0.3.6
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking untrusted v0.7.0
[INFO] [stderr]     Checking zeroize v0.9.3
[INFO] [stderr]     Checking entities v1.0.1
[INFO] [stderr]     Checking hex v0.4.0
[INFO] [stderr]     Checking urlencoding v1.0.0
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]    Compiling indexmap v1.3.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking serde_test v1.0.104
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]     Checking escaper v0.1.0
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking rust-crypto v0.2.36
[INFO] [stderr]     Checking sha2 v0.8.1
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]     Checking ripemd160 v0.8.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking parity-codec v3.5.4
[INFO] [stderr]     Checking bstr v0.2.9
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]     Checking bs58 v0.3.0
[INFO] [stderr]     Checking yogcrypt v0.0.0
[INFO] [stderr]     Checking twox-hash v1.5.0
[INFO] [stderr]    Compiling clear_on_drop v0.2.3
[INFO] [stderr]    Compiling secp256k1-sys v0.1.2
[INFO] [stderr]    Compiling ring-fork-dtool v0.16.13
[INFO] [stderr]    Compiling secp256k1 v0.15.5
[INFO] [stderr]     Checking csv v1.1.2
[INFO] [stderr]     Checking serde_yaml v0.7.5
[INFO] [stderr]     Checking regex v1.3.3
[INFO] [stderr]     Checking prettytable-rs v0.8.0
[INFO] [stderr]    Compiling curve25519-dalek v1.2.3
[INFO] [stderr]     Checking secp256k1 v0.17.2
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling zeroize_derive v1.0.0
[INFO] [stderr]    Compiling signature_derive v1.0.0-pre.2
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking signature v1.2.2
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]     Checking elliptic-curve v0.5.0
[INFO] [stderr]     Checking subtle-encoding v0.5.1
[INFO] [stderr]     Checking merlin v1.3.0
[INFO] [stderr]     Checking schnorrkel v0.8.5
[INFO] [stderr]     Checking ecdsa v0.7.2
[INFO] [stderr]     Checking k256 v0.4.2
[INFO] [stderr]     Checking signatory v0.21.0
[INFO] [stderr]     Checking signatory-secp256k1 v0.21.0
[INFO] [stderr]     Checking madato v0.5.3
[INFO] [stderr]  Documenting dtool v0.10.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 56.31s
[INFO] running `Command { std: "docker" "inspect" "fc582e0b7054bf3c419140f9e5fb9c87d53543dfeba7c9f398331d43dbdfdf7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc582e0b7054bf3c419140f9e5fb9c87d53543dfeba7c9f398331d43dbdfdf7c", kill_on_drop: false }`
[INFO] [stdout] fc582e0b7054bf3c419140f9e5fb9c87d53543dfeba7c9f398331d43dbdfdf7c