[INFO] fetching crate mantle-build 0.2.2...
[INFO] documenting mantle-build-0.2.2 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate mantle-build 0.2.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate mantle-build 0.2.2 on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mantle-build 0.2.2
[INFO] finished tweaking crates.io crate mantle-build 0.2.2
[INFO] tweaked toml for crates.io crate mantle-build 0.2.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate mantle-build 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded default-env v0.1.1
[INFO] [stderr]   Downloaded mantle-rpc v0.1.1
[INFO] [stderr]   Downloaded blockchain-traits v0.2.0
[INFO] [stderr]   Downloaded mantle v0.2.0
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8fb5570e8a7a54f8f3ed105fb2f648f184c820ef4d338659d549dc64679b1357
[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" "8fb5570e8a7a54f8f3ed105fb2f648f184c820ef4d338659d549dc64679b1357", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8fb5570e8a7a54f8f3ed105fb2f648f184c820ef4d338659d549dc64679b1357", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fb5570e8a7a54f8f3ed105fb2f648f184c820ef4d338659d549dc64679b1357", kill_on_drop: false }`
[INFO] [stdout] 8fb5570e8a7a54f8f3ed105fb2f648f184c820ef4d338659d549dc64679b1357
[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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78d4213477ed1dd7564872cb1de380cac5c643cba2cb5964190b72167bd3cea8
[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" "78d4213477ed1dd7564872cb1de380cac5c643cba2cb5964190b72167bd3cea8", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking spin v0.5.0
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]     Checking rustc-demangle v0.1.15
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]    Compiling winapi v0.3.7
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking leb128 v0.2.4
[INFO] [stderr]     Checking rle-decode-fast v1.0.1
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]     Checking wasmparser v0.30.0
[INFO] [stderr]     Checking rgb v0.8.13
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking unicode-normalization v0.1.8
[INFO] [stderr]     Checking proc-macro2 v0.4.30
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking libflate v0.1.25
[INFO] [stderr]    Compiling backtrace-sys v0.1.30
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking backtrace v0.3.32
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking id-arena v2.2.1
[INFO] [stderr]     Checking winconsole v0.10.0
[INFO] [stderr]     Checking colored v1.8.0
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.94
[INFO] [stderr]    Compiling proc-macro-hack v0.5.8
[INFO] [stderr]    Compiling walrus-macro v0.8.0
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]    Compiling proc-quote-impl v0.2.2
[INFO] [stderr]     Checking proc-quote v0.2.2
[INFO] [stderr]     Checking walrus v0.8.0
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking toml v0.5.1
[INFO] [stderr]     Checking mantle-rpc v0.1.1
[INFO] [stderr]  Documenting mantle-build v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0462]: found staticlib `rustc` instead of rlib or dylib
[INFO] [stdout]   --> src/lib.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | extern crate rustc;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: please recompile that crate using --crate-type lib
[INFO] [stdout]    = note: the following crate versions were found:
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/66dfc4e010913fbed0c4ea91fc2c010004b0f441/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.asan.a
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/66dfc4e010913fbed0c4ea91fc2c010004b0f441/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.tsan.a
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/66dfc4e010913fbed0c4ea91fc2c010004b0f441/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.msan.a
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/66dfc4e010913fbed0c4ea91fc2c010004b0f441/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.lsan.a
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `mantle-build`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name mantle_build src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern colored=/opt/rustwide/target/debug/deps/libcolored-a96338b4fa302463.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-552cc958eb8503c4.rmeta --extern heck=/opt/rustwide/target/debug/deps/libheck-d3a77e336ec38f04.rmeta --extern mantle_rpc=/opt/rustwide/target/debug/deps/libmantle_rpc-c95ef6e43de5bccb.rmeta --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-ae23360b00ab2b8b.rmeta --extern proc_quote=/opt/rustwide/target/debug/deps/libproc_quote-015ddbeb5bdd5d59.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-6627d5cf5995033d.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-8357a1441a46ea36.rmeta --extern walrus=/opt/rustwide/target/debug/deps/libwalrus-463b4e2c111cb7ea.rmeta --cap-lints=forbid` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "78d4213477ed1dd7564872cb1de380cac5c643cba2cb5964190b72167bd3cea8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78d4213477ed1dd7564872cb1de380cac5c643cba2cb5964190b72167bd3cea8", kill_on_drop: false }`
[INFO] [stdout] 78d4213477ed1dd7564872cb1de380cac5c643cba2cb5964190b72167bd3cea8