[INFO] fetching crate dntk 2.2.1...
[INFO] documenting dntk-2.2.1 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate dntk 2.2.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate dntk 2.2.1 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dntk 2.2.1
[INFO] finished tweaking crates.io crate dntk 2.2.1
[INFO] tweaked toml for crates.io crate dntk 2.2.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded escargot v0.4.0
[INFO] [stderr]   Downloaded subprocess v0.1.20
[INFO] [stderr]   Downloaded assert_cmd v0.11.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4e136eeb2249107dfd71fe7529534bd1aba4bcfd18647ea3f7f3778c87be9a4c
[INFO] running `Command { std: "docker" "start" "-a" "4e136eeb2249107dfd71fe7529534bd1aba4bcfd18647ea3f7f3778c87be9a4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e136eeb2249107dfd71fe7529534bd1aba4bcfd18647ea3f7f3778c87be9a4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e136eeb2249107dfd71fe7529534bd1aba4bcfd18647ea3f7f3778c87be9a4c", kill_on_drop: false }`
[INFO] [stdout] 4e136eeb2249107dfd71fe7529534bd1aba4bcfd18647ea3f7f3778c87be9a4c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6bdaa3ddda68774aa332e9b299cb3b5f527641955fd3c151e7ec5241711e3b6b
[INFO] running `Command { std: "docker" "start" "-a" "6bdaa3ddda68774aa332e9b299cb3b5f527641955fd3c151e7ec5241711e3b6b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling escargot v0.4.0
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking predicates-core v1.0.3
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking termtree v0.2.4
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking bytemuck v1.9.1
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking predicates-tree v1.0.5
[INFO] [stderr]     Checking rgb v0.8.32
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking predicates v1.0.8
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking subprocess v0.1.20
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking winconsole v0.10.0
[INFO] [stderr]     Checking assert_cmd v0.11.1
[INFO] [stderr]  Documenting dntk v2.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: environment variable `LINUX_TERM_LIB` not defined
[INFO] [stdout]  --> src/term/mod.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | include!(env!("LINUX_TERM_LIB"));
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `env` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `dntk`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name dntk src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=6fcfb9bfdcc2f116 -L dependency=/opt/rustwide/target/debug/deps --extern ansi_term=/opt/rustwide/target/debug/deps/libansi_term-667029c6de371069.rmeta --extern assert_cmd=/opt/rustwide/target/debug/deps/libassert_cmd-3e9fabda1c9a1812.rmeta --extern atty=/opt/rustwide/target/debug/deps/libatty-c6e9a38b75809002.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-1142797c599e6439.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-1479f2b7adeaa2b6.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-4e90763dd2291129.rmeta --extern scopeguard=/opt/rustwide/target/debug/deps/libscopeguard-cc9347aa39bc4a04.rmeta --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-ac206153211c5511.rmeta --extern subprocess=/opt/rustwide/target/debug/deps/libsubprocess-084d6ec4ea7b1692.rmeta --extern winapi=/opt/rustwide/target/debug/deps/libwinapi-5e62b0c05b85d86a.rmeta --extern winconsole=/opt/rustwide/target/debug/deps/libwinconsole-d9100b8959beb7b6.rmeta --cap-lints=warn --crate-version 2.2.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "6bdaa3ddda68774aa332e9b299cb3b5f527641955fd3c151e7ec5241711e3b6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bdaa3ddda68774aa332e9b299cb3b5f527641955fd3c151e7ec5241711e3b6b", kill_on_drop: false }`
[INFO] [stdout] 6bdaa3ddda68774aa332e9b299cb3b5f527641955fd3c151e7ec5241711e3b6b