[INFO] updating cached repository MTPocket/rustdoc-problem
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/MTPocket/rustdoc-problem
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/MTPocket/rustdoc-problem" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/MTPocket/rustdoc-problem"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/MTPocket/rustdoc-problem'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/MTPocket/rustdoc-problem" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/MTPocket/rustdoc-problem"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/MTPocket/rustdoc-problem'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a1e52abc93cec7ea726acc231e7f1f96d967d7d7
[INFO] sha for GitHub repo MTPocket/rustdoc-problem: a1e52abc93cec7ea726acc231e7f1f96d967d7d7
[INFO] validating manifest of MTPocket/rustdoc-problem on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of MTPocket/rustdoc-problem on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing MTPocket/rustdoc-problem
[INFO] finished frobbing MTPocket/rustdoc-problem
[INFO] frobbed toml for MTPocket/rustdoc-problem written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/MTPocket/rustdoc-problem/Cargo.toml
[INFO] started frobbing MTPocket/rustdoc-problem
[INFO] finished frobbing MTPocket/rustdoc-problem
[INFO] frobbed toml for MTPocket/rustdoc-problem written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/MTPocket/rustdoc-problem/Cargo.toml
[INFO] crate MTPocket/rustdoc-problem already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking MTPocket/rustdoc-problem against master#0f88167f89fffe321590c5148f21b7d51d44388d for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-1/master#0f88167f89fffe321590c5148f21b7d51d44388d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/MTPocket/rustdoc-problem:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c748e85186ea0d201cd04b9a81d634e7d844712b5ec49f5a0c59e8048b3e0912
[INFO] running `"docker" "start" "-a" "c748e85186ea0d201cd04b9a81d634e7d844712b5ec49f5a0c59e8048b3e0912"`
[INFO] [stderr]     Checking hello_cargo v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `"docker" "inspect" "c748e85186ea0d201cd04b9a81d634e7d844712b5ec49f5a0c59e8048b3e0912"`
[INFO] running `"docker" "rm" "-f" "c748e85186ea0d201cd04b9a81d634e7d844712b5ec49f5a0c59e8048b3e0912"`
[INFO] [stdout] c748e85186ea0d201cd04b9a81d634e7d844712b5ec49f5a0c59e8048b3e0912