[INFO] cloning repository https://github.com/antoyo/rustc_codegen_gcc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/antoyo/rustc_codegen_gcc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fantoyo%2Frustc_codegen_gcc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fantoyo%2Frustc_codegen_gcc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b6c25f33c3e1f0cdc0feb47914254622ab6672d9
[INFO] documenting antoyo/rustc_codegen_gcc against 1.47.0 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fantoyo%2Frustc_codegen_gcc" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/antoyo/rustc_codegen_gcc on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/antoyo/rustc_codegen_gcc
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/antoyo/rustc_codegen_gcc
[INFO] tweaked toml for git repo https://github.com/antoyo/rustc_codegen_gcc written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/antoyo/rustc_codegen_gcc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--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 wasmparser v0.51.4
[INFO] [stderr]   Downloaded ar v0.8.0
[INFO] [stderr]   Downloaded target-lexicon v0.10.0
[INFO] [stderr]   Downloaded object v0.18.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0a7d53f6c2a35e787bd3f473181df6d74eaa98cdb696a3060621c0ebb8539d2
[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" "b0a7d53f6c2a35e787bd3f473181df6d74eaa98cdb696a3060621c0ebb8539d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0a7d53f6c2a35e787bd3f473181df6d74eaa98cdb696a3060621c0ebb8539d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0a7d53f6c2a35e787bd3f473181df6d74eaa98cdb696a3060621c0ebb8539d2", kill_on_drop: false }`
[INFO] [stdout] b0a7d53f6c2a35e787bd3f473181df6d74eaa98cdb696a3060621c0ebb8539d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6138087346a972b73241da7c1cdd18de98422940858d21db46524173775a2d0d
[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" "6138087346a972b73241da7c1cdd18de98422940858d21db46524173775a2d0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling target-lexicon v0.10.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking libc v0.1.12
[INFO] [stderr]     Checking wasmparser v0.51.4
[INFO] [stderr]     Checking ar v0.8.0
[INFO] [stderr]     Checking gccjit_sys v0.0.1 (https://github.com/antoyo/gccjit.rs?branch=feature/rustc#d47429ba)
[INFO] [stderr]     Checking gccjit v1.0.0 (https://github.com/antoyo/gccjit.rs?branch=feature/rustc#d47429ba)
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]     Checking object v0.18.0
[INFO] [stderr]  Documenting rustc_codegen_gcc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `rustc_ast`
[INFO] [stdout]   --> src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | extern crate rustc_ast;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `rustc_codegen_gcc`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type dylib --crate-name rustc_codegen_gcc 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 ar=/opt/rustwide/target/debug/deps/libar-a8c9e2d1d655e435.rmeta --extern gccjit=/opt/rustwide/target/debug/deps/libgccjit-76f1dc001a80f915.rmeta --extern object=/opt/rustwide/target/debug/deps/libobject-38bb219f661c3cd7.rmeta --extern target_lexicon=/opt/rustwide/target/debug/deps/libtarget_lexicon-f0f5fd7ba27bff19.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "6138087346a972b73241da7c1cdd18de98422940858d21db46524173775a2d0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6138087346a972b73241da7c1cdd18de98422940858d21db46524173775a2d0d", kill_on_drop: false }`
[INFO] [stdout] 6138087346a972b73241da7c1cdd18de98422940858d21db46524173775a2d0d
