[INFO] fetching crate rocket-multipart-form-data 0.7.0...
[INFO] checking rocket-multipart-form-data-0.7.0 against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] extracting crate rocket-multipart-form-data 0.7.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate rocket-multipart-form-data 0.7.0 on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rocket-multipart-form-data 0.7.0
[INFO] finished tweaking crates.io crate rocket-multipart-form-data 0.7.0
[INFO] tweaked toml for crates.io crate rocket-multipart-form-data 0.7.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rocket-etag-if-none-match v0.3.3
[INFO] [stderr]   Downloaded rc-u8-reader v2.0.10
[INFO] [stderr]   Downloaded rocket-raw-response v0.4.8
[INFO] [stderr]   Downloaded educe v0.4.2
[INFO] [stderr]   Downloaded debug-helper v0.3.8
[INFO] [stderr]   Downloaded rocket-include-static-resources v0.8.5
[INFO] [stderr]   Downloaded crc-any v1.1.3
[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" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f11fae61a8834a497108475f34b62043eb7e70703fc05dd7c94e4b3ea9a0beda
[INFO] running `"docker" "start" "-a" "f11fae61a8834a497108475f34b62043eb7e70703fc05dd7c94e4b3ea9a0beda"`
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]     Checking groupable v0.2.0
[INFO] [stderr]     Checking debug-helper v0.3.8
[INFO] [stderr]     Checking crc-any v1.1.3
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking buf_redux v0.8.4
[INFO] [stderr]     Checking plugin v0.2.6
[INFO] [stderr]     Checking mustache v0.9.0
[INFO] [stderr]     Checking rc-u8-reader v2.0.10
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling educe v0.4.2
[INFO] [stderr]     Checking tiny_http v0.6.2
[INFO] [stderr]     Checking rocket-etag-if-none-match v0.3.3
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking nickel v0.11.0
[INFO] [stderr]     Checking rocket-include-static-resources v0.8.5
[INFO] [stderr]    Compiling mime_guess v1.8.7
[INFO] [stderr]     Checking rocket-raw-response v0.4.8
[INFO] [stderr]     Checking iron v0.6.1
[INFO] [stderr]     Checking multipart v0.16.1
[INFO] [stderr]     Checking rocket-multipart-form-data v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0635]: unknown feature `const_vec_new`
[INFO] [stderr]  --> examples/image_uploader.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(const_vec_new)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0635`.
[INFO] [stderr] error: could not compile `rocket-multipart-form-data`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "f11fae61a8834a497108475f34b62043eb7e70703fc05dd7c94e4b3ea9a0beda"`
[INFO] running `"docker" "rm" "-f" "f11fae61a8834a497108475f34b62043eb7e70703fc05dd7c94e4b3ea9a0beda"`
[INFO] [stdout] f11fae61a8834a497108475f34b62043eb7e70703fc05dd7c94e4b3ea9a0beda