[INFO] fetching crate standalone-proc-macro2 0.2.2...
[INFO] checking standalone-proc-macro2-0.2.2 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate standalone-proc-macro2 0.2.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate standalone-proc-macro2 0.2.2 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate standalone-proc-macro2 0.2.2
[INFO] finished tweaking crates.io crate standalone-proc-macro2 0.2.2
[INFO] tweaked toml for crates.io crate standalone-proc-macro2 0.2.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustc-ap-rustc_errors v40.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_cratesio_shim v40.0.0
[INFO] [stderr]   Downloaded rustc-ap-proc_macro v40.0.0
[INFO] [stderr]   Downloaded rustc-ap-syntax_pos v40.0.0
[INFO] [stderr]   Downloaded rustc-ap-serialize v40.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_data_structures v40.0.0
[INFO] [stderr]   Downloaded rustc-ap-syntax v40.0.0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8bc3517a32917a9eb51672468b2c23e57b1131ed721e1ccdc4f812f27d3c5e0c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "8bc3517a32917a9eb51672468b2c23e57b1131ed721e1ccdc4f812f27d3c5e0c"`
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking rustc-ap-serialize v40.0.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling rustc-ap-syntax v40.0.0
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking rustc-ap-rustc_cratesio_shim v40.0.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking parking_lot v0.5.5
[INFO] [stderr]     Checking rustc-ap-rustc_data_structures v40.0.0
[INFO] [stderr] error: allow_internal_unstable expects list of feature names
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_data_structures-40.0.0/sync.rs:268:1
[INFO] [stderr]     |
[INFO] [stderr] 268 | #[allow_internal_unstable]
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::collections::range`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_data_structures-40.0.0/array_vec.rs:21:23
[INFO] [stderr]    |
[INFO] [stderr] 21 | use std::collections::range::RangeArgument;
[INFO] [stderr]    |                       ^^^^^ could not find `range` in `collections`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::collections::range`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_data_structures-40.0.0/accumulate_vec.rs:22:23
[INFO] [stderr]    |
[INFO] [stderr] 22 | use std::collections::range::RangeArgument;
[INFO] [stderr]    |                       ^^^^^ could not find `range` in `collections`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::collections::range`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_data_structures-40.0.0/indexed_vec.rs:11:23
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::collections::range::RangeArgument;
[INFO] [stderr]    |                       ^^^^^ could not find `range` in `collections`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `core::nonzero`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_data_structures-40.0.0/obligation_forest/node_index.rs:11:11
[INFO] [stderr]    |
[INFO] [stderr] 11 | use core::nonzero::NonZero;
[INFO] [stderr]    |           ^^^^^^^ could not find `nonzero` in `core`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `rustc-ap-rustc_data_structures`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "8bc3517a32917a9eb51672468b2c23e57b1131ed721e1ccdc4f812f27d3c5e0c"`
[INFO] running `"docker" "rm" "-f" "8bc3517a32917a9eb51672468b2c23e57b1131ed721e1ccdc4f812f27d3c5e0c"`
[INFO] [stdout] 8bc3517a32917a9eb51672468b2c23e57b1131ed721e1ccdc4f812f27d3c5e0c