[INFO] fetching crate multican 0.6.0-beta.1...
[INFO] documenting multican-0.6.0-beta.1 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate multican 0.6.0-beta.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate multican 0.6.0-beta.1 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate multican 0.6.0-beta.1
[INFO] finished tweaking crates.io crate multican 0.6.0-beta.1
[INFO] tweaked toml for crates.io crate multican 0.6.0-beta.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate multican 0.6.0-beta.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e1ab3efa6f4a4118028e588867beeb83b461f148e7908027739a26c878031df
[INFO] running `Command { std: "docker" "start" "-a" "5e1ab3efa6f4a4118028e588867beeb83b461f148e7908027739a26c878031df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e1ab3efa6f4a4118028e588867beeb83b461f148e7908027739a26c878031df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e1ab3efa6f4a4118028e588867beeb83b461f148e7908027739a26c878031df", kill_on_drop: false }`
[INFO] [stdout] 5e1ab3efa6f4a4118028e588867beeb83b461f148e7908027739a26c878031df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fbe4d8c7780205362b9c6943a3996d9f9f96b4f686a2e127c80f8082c372d876
[INFO] running `Command { std: "docker" "start" "-a" "fbe4d8c7780205362b9c6943a3996d9f9f96b4f686a2e127c80f8082c372d876", 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.64
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]     Checking hex v0.2.0
[INFO] [stderr]     Checking try_from v0.2.2
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking socket2 v0.3.11
[INFO] [stderr]     Checking socketcan v1.7.0
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]  Documenting multican v0.6.0-beta.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.19s
[INFO] running `Command { std: "docker" "inspect" "fbe4d8c7780205362b9c6943a3996d9f9f96b4f686a2e127c80f8082c372d876", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbe4d8c7780205362b9c6943a3996d9f9f96b4f686a2e127c80f8082c372d876", kill_on_drop: false }`
[INFO] [stdout] fbe4d8c7780205362b9c6943a3996d9f9f96b4f686a2e127c80f8082c372d876
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-e" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 730cde1c40758aa2b7b94e1fbe0acbc36b3eac6ab585e215e6094fbc9fb16f61
[INFO] running `Command { std: "docker" "start" "-a" "730cde1c40758aa2b7b94e1fbe0acbc36b3eac6ab585e215e6094fbc9fb16f61", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling libc v0.2.64
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking try_from v0.2.2
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]     Checking hex v0.2.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking socket2 v0.3.11
[INFO] [stderr]     Checking socketcan v1.7.0
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]  Documenting multican v0.6.0-beta.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.93s
[INFO] running `Command { std: "docker" "inspect" "730cde1c40758aa2b7b94e1fbe0acbc36b3eac6ab585e215e6094fbc9fb16f61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "730cde1c40758aa2b7b94e1fbe0acbc36b3eac6ab585e215e6094fbc9fb16f61", kill_on_drop: false }`
[INFO] [stdout] 730cde1c40758aa2b7b94e1fbe0acbc36b3eac6ab585e215e6094fbc9fb16f61