[INFO] fetching crate solo2 0.0.4...
[INFO] documenting solo2-0.0.4 against 1.55.0 for beta-1.56-rustdoc-1
[INFO] extracting crate solo2 0.0.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate solo2 0.0.4 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate solo2 0.0.4
[INFO] finished tweaking crates.io crate solo2 0.0.4
[INFO] tweaked toml for crates.io crate solo2 0.0.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate solo2 0.0.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 15e2e8ac66c476e044c55eb62af1ce02036adf48dd4138ac24cc1c9a6d2a8c72
[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" "15e2e8ac66c476e044c55eb62af1ce02036adf48dd4138ac24cc1c9a6d2a8c72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15e2e8ac66c476e044c55eb62af1ce02036adf48dd4138ac24cc1c9a6d2a8c72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15e2e8ac66c476e044c55eb62af1ce02036adf48dd4138ac24cc1c9a6d2a8c72", kill_on_drop: false }`
[INFO] [stdout] 15e2e8ac66c476e044c55eb62af1ce02036adf48dd4138ac24cc1c9a6d2a8c72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", 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] 4c51e7821ad4f469348b7e0f8360a11e8d1e79b173bbf8b6611422805bb66e84
[INFO] running `Command { std: "docker" "start" "-a" "4c51e7821ad4f469348b7e0f8360a11e8d1e79b173bbf8b6611422805bb66e84", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]     Checking base64ct v1.0.0
[INFO] [stderr]    Compiling delog v0.1.2
[INFO] [stderr]    Compiling heapless v0.7.3
[INFO] [stderr]     Checking ascii v1.0.0
[INFO] [stderr]     Checking signature v1.3.1
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling openssl-sys v0.9.65
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling hidapi v1.2.6
[INFO] [stderr]    Compiling pcsc-sys v1.2.0
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]    Compiling num-bigint-dig v0.7.0
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]     Checking uriparse v0.6.3
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking lexical-core v0.7.6
[INFO] [stderr]     Checking futures-channel v0.3.16
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking pem-rfc7468 v0.2.0
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking regex v1.4.6
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling enum-iterator-derive v0.7.0
[INFO] [stderr]     Checking crypto-bigint v0.2.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking aes v0.7.4
[INFO] [stderr]     Checking ctr v0.8.0
[INFO] [stderr]     Checking num-bigint v0.4.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking num-bigint v0.2.6
[INFO] [stderr]     Checking num-iter v0.1.42
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking pcsc v2.5.0
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking der v0.4.0
[INFO] [stderr]    Compiling openssl v0.10.35
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking pem-parser v0.1.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking iso7816 v0.1.0-alpha.1
[INFO] [stderr]     Checking rust-crypto v0.2.36
[INFO] [stderr]     Checking nom v6.2.1
[INFO] [stderr]     Checking tiny_http v0.8.2
[INFO] [stderr]     Checking pkcs11 v0.5.0
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling zeroize_derive v1.1.0
[INFO] [stderr]     Checking spki v0.4.0
[INFO] [stderr]     Checking enum-iterator v0.7.0
[INFO] [stderr]     Checking tokio v1.9.0
[INFO] [stderr]     Checking pkcs11-uri v0.1.2
[INFO] [stderr]     Checking zeroize v1.4.1
[INFO] [stderr]     Checking pkcs1 v0.2.3
[INFO] [stderr]     Checking rusticata-macros v3.1.0
[INFO] [stderr]    Compiling der-oid-macro v0.4.0
[INFO] [stderr]    Compiling lpc55 v0.1.0-alpha.7
[INFO] [stderr]     Checking pkcs8 v0.7.5
[INFO] [stderr]     Checking serde v1.0.126
[INFO] [stderr]     Checking der-parser v5.1.1
[INFO] [stderr]     Checking rsa v0.5.0
[INFO] [stderr]     Checking oid-registry v0.1.5
[INFO] [stderr]     Checking x509-parser v0.9.2
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking h2 v0.3.3
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking serde_yaml v0.8.17
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking serde-big-array v0.3.2
[INFO] [stderr]     Checking hyper v0.14.11
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.4
[INFO] [stderr]  Documenting solo2 v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.20s
[INFO] running `Command { std: "docker" "inspect" "4c51e7821ad4f469348b7e0f8360a11e8d1e79b173bbf8b6611422805bb66e84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c51e7821ad4f469348b7e0f8360a11e8d1e79b173bbf8b6611422805bb66e84", kill_on_drop: false }`
[INFO] [stdout] 4c51e7821ad4f469348b7e0f8360a11e8d1e79b173bbf8b6611422805bb66e84