[INFO] crate fast-rustc-ap-serialize 1.0.0 is already in cache
[INFO] testing fast-rustc-ap-serialize-1.0.0 against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] extracting crate fast-rustc-ap-serialize 1.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate fast-rustc-ap-serialize 1.0.0 on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate fast-rustc-ap-serialize 1.0.0
[INFO] finished tweaking crates.io crate fast-rustc-ap-serialize 1.0.0
[INFO] tweaked toml for crates.io crate fast-rustc-ap-serialize 1.0.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+41997647ba6a77908f6ef64401414feb00bccf16" "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] c83d48c26caf3863e5f7a5fb67b374533f1cf20f339cdac4d8645f16e1dcee80
[INFO] running `"docker" "start" "-a" "c83d48c26caf3863e5f7a5fb67b374533f1cf20f339cdac4d8645f16e1dcee80"`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling smallvec v1.3.0
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling fast-rustc-ap-serialize v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.21s
[INFO] running `"docker" "inspect" "c83d48c26caf3863e5f7a5fb67b374533f1cf20f339cdac4d8645f16e1dcee80"`
[INFO] running `"docker" "rm" "-f" "c83d48c26caf3863e5f7a5fb67b374533f1cf20f339cdac4d8645f16e1dcee80"`
[INFO] [stdout] c83d48c26caf3863e5f7a5fb67b374533f1cf20f339cdac4d8645f16e1dcee80
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3610fb319a28c8e04f7f4471e8f189ece5e5229b44c44dbf5d2ad7859a649f62
[INFO] running `"docker" "start" "-a" "3610fb319a28c8e04f7f4471e8f189ece5e5229b44c44dbf5d2ad7859a649f62"`
[INFO] [stderr]    Compiling fast-rustc-ap-serialize v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0463]: can't find crate for `serialize`
[INFO] [stderr]  --> tests/json.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | extern crate serialize as rustc_serialize;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error[E0463]: can't find crate for `serialize`
[INFO] [stderr]  --> tests/leb128.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | extern crate serialize as rustc_serialize;
[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 `fast-rustc-ap-serialize`.
[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: 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 `fast-rustc-ap-serialize`.
[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 `serialize`
[INFO] [stderr]  --> tests/opaque.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | extern crate serialize as rustc_serialize;
[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 `fast-rustc-ap-serialize`.
[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" "3610fb319a28c8e04f7f4471e8f189ece5e5229b44c44dbf5d2ad7859a649f62"`
[INFO] running `"docker" "rm" "-f" "3610fb319a28c8e04f7f4471e8f189ece5e5229b44c44dbf5d2ad7859a649f62"`
[INFO] [stdout] 3610fb319a28c8e04f7f4471e8f189ece5e5229b44c44dbf5d2ad7859a649f62