[INFO] fetching crate nix-query 1.0.2...
[INFO] documenting nix-query-1.0.2 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate nix-query 1.0.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate nix-query 1.0.2 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 nix-query 1.0.2
[INFO] finished tweaking crates.io crate nix-query 1.0.2
[INFO] tweaked toml for crates.io crate nix-query 1.0.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate nix-query 1.0.2 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 tuikit v0.2.9
[INFO] [stderr]   Downloaded aho-corasick v0.7.7
[INFO] [stderr]   Downloaded skim v0.7.0
[INFO] [stderr]   Downloaded timer v0.2.0
[INFO] [stderr]   Downloaded structopt v0.3.8
[INFO] [stderr]   Downloaded structopt-derive v0.4.1
[INFO] [stderr]   Downloaded derive_builder_core v0.9.0
[INFO] [stderr]   Downloaded fuzzy-matcher v0.3.1
[INFO] [stderr]   Downloaded proc-macro-error-attr v0.4.5
[INFO] [stderr]   Downloaded proc-macro-error v0.4.5
[INFO] [stderr]   Downloaded derive_builder v0.9.0
[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] [stdout] 210a414e5016f3e4229c9033a9bcf0ed9d08ff9ed768ed8f26a7fa7becd2ee58
[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" "210a414e5016f3e4229c9033a9bcf0ed9d08ff9ed768ed8f26a7fa7becd2ee58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "210a414e5016f3e4229c9033a9bcf0ed9d08ff9ed768ed8f26a7fa7becd2ee58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "210a414e5016f3e4229c9033a9bcf0ed9d08ff9ed768ed8f26a7fa7becd2ee58", kill_on_drop: false }`
[INFO] [stdout] 210a414e5016f3e4229c9033a9bcf0ed9d08ff9ed768ed8f26a7fa7becd2ee58
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5db3d1ad752b9d7fdceb2c7d62ade0731f4e3342b9110bf960ce36001a0d27bb
[INFO] running `Command { std: "docker" "start" "-a" "5db3d1ad752b9d7fdceb2c7d62ade0731f4e3342b9110bf960ce36001a0d27bb", kill_on_drop: false }`
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `nix-query` in package `nix-query v1.0.2 (/opt/rustwide/workdir)` has the same output filename as the lib target `nix_query` in package `nix-query v1.0.2 (/opt/rustwide/workdir)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/doc/nix_query/index.html
[INFO] [stderr] The output filenames should be unique.
[INFO] [stderr] This is a known bug where multiple crates with the same name use
[INFO] [stderr] the same path; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] If this looks unexpected, it may be a bug in Cargo. Please file a bug report at
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/ with as much information as you
[INFO] [stderr] can provide.
[INFO] [stderr] cargo 1.47.0-beta (51b66125b 2020-08-19) running on `x86_64-unknown-linux-gnu` target `x86_64-unknown-linux-gnu`
[INFO] [stderr] First unit: Unit { pkg: Package { id: PackageId { name: "nix-query", version: "1.0.2", source: "/opt/rustwide/workdir" }, ..: ".." }, target: TargetInner { name: "nix-query", doc: true, ..: with_path("/opt/rustwide/workdir/src/main.rs", Edition2018) }, profile: Profile { name: "doc", debuginfo: Some(2), debug_assertions: true, overflow_checks: true, ..: default() }, kind: Host, mode: Doc { deps: false }, features: [] }
[INFO] [stderr] Second unit: Unit { pkg: Package { id: PackageId { name: "nix-query", version: "1.0.2", source: "/opt/rustwide/workdir" }, ..: ".." }, target: TargetInner { ..: lib_target("nix_query", ["lib"], "/opt/rustwide/workdir/src/lib.rs", Edition2018) }, profile: Profile { name: "doc", debuginfo: Some(2), debug_assertions: true, overflow_checks: true, ..: default() }, kind: Host, mode: Doc { deps: false }, features: [] }
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]     Checking regex-syntax v0.6.13
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]     Checking utf8parse v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking fuzzy-matcher v0.3.1
[INFO] [stderr]     Checking memchr v2.3.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking colored v1.9.2
[INFO] [stderr]     Checking vte v0.3.3
[INFO] [stderr]     Checking crossbeam-epoch v0.8.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking aho-corasick v0.7.7
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking num-integer v0.1.42
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking timer v0.2.0
[INFO] [stderr]     Checking regex v1.3.3
[INFO] [stderr]     Checking tuikit v0.2.9
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling syn-mid v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling proc-macro-error v0.4.5
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.5
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]    Compiling structopt-derive v0.4.1
[INFO] [stderr]     Checking skim v0.7.0
[INFO] [stderr]     Checking structopt v0.3.8
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking serde_json v1.0.45
[INFO] [stderr]     Checking nix-query v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting nix-query v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.42s
[INFO] running `Command { std: "docker" "inspect" "5db3d1ad752b9d7fdceb2c7d62ade0731f4e3342b9110bf960ce36001a0d27bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5db3d1ad752b9d7fdceb2c7d62ade0731f4e3342b9110bf960ce36001a0d27bb", kill_on_drop: false }`
[INFO] [stdout] 5db3d1ad752b9d7fdceb2c7d62ade0731f4e3342b9110bf960ce36001a0d27bb