[INFO] crate swagger_to_md 1.0.0 is already in cache
[INFO] testing swagger_to_md-1.0.0 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] extracting crate swagger_to_md 1.0.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate swagger_to_md 1.0.0 on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate swagger_to_md 1.0.0
[INFO] finished tweaking crates.io crate swagger_to_md 1.0.0
[INFO] tweaked toml for crates.io crate swagger_to_md 1.0.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "RUSTFLAGS=--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" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c25fd7e2d87ff805be6cd4b79715e06375517e22cc9fe8e825257d46a0c0f80c
[INFO] running `"docker" "start" "-a" "c25fd7e2d87ff805be6cd4b79715e06375517e22cc9fe8e825257d46a0c0f80c"`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling aster v0.13.1
[INFO] [stderr]    Compiling serde_codegen v0.6.14
[INFO] [stderr]    Compiling quasi v0.7.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr] error[E0463]: can't find crate for `syntax`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/quasi-0.7.0/src/lib.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | extern crate syntax;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: could not compile `quasi`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0463]: can't find crate for `syntax`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/aster-0.13.1/src/lib.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | extern crate syntax;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: could not compile `aster`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "c25fd7e2d87ff805be6cd4b79715e06375517e22cc9fe8e825257d46a0c0f80c"`
[INFO] running `"docker" "rm" "-f" "c25fd7e2d87ff805be6cd4b79715e06375517e22cc9fe8e825257d46a0c0f80c"`
[INFO] [stdout] c25fd7e2d87ff805be6cd4b79715e06375517e22cc9fe8e825257d46a0c0f80c