[INFO] fetching crate earwax 0.1.7...
[INFO] checking earwax-0.1.7 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate earwax 0.1.7 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate earwax 0.1.7 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate earwax 0.1.7
[INFO] finished tweaking crates.io crate earwax 0.1.7
[INFO] tweaked toml for crates.io crate earwax 0.1.7 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ao_rs v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae4381ba28ce1be8097350a5a7795d61e820739518c1f4c0269fcf6850ec654a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ae4381ba28ce1be8097350a5a7795d61e820739518c1f4c0269fcf6850ec654a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae4381ba28ce1be8097350a5a7795d61e820739518c1f4c0269fcf6850ec654a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae4381ba28ce1be8097350a5a7795d61e820739518c1f4c0269fcf6850ec654a", kill_on_drop: false }`
[INFO] [stdout] ae4381ba28ce1be8097350a5a7795d61e820739518c1f4c0269fcf6850ec654a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70ef9bca1d23c46b1b5581caaa0520000c8137f4d5f1afead78577e932dc5a2f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "70ef9bca1d23c46b1b5581caaa0520000c8137f4d5f1afead78577e932dc5a2f", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling earwax v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `gcc::compile_library`: crate has been renamed to `cc`, the `gcc` name is not maintained
[INFO] [stdout]  --> build.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     gcc::compile_library("libearwax.a", &["src/libearwax.c"]);
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: src/libearwax.c: In function 'earwax_init':
[INFO] [stderr] warning: src/libearwax.c:169:9: warning: 'av_register_all' is deprecated [-Wdeprecated-declarations]
[INFO] [stderr] warning:   169 |         av_register_all();
[INFO] [stderr] warning:       |         ^~~~~~~~~~~~~~~
[INFO] [stderr] warning: In file included from src/libearwax.c:10:
[INFO] [stderr] warning: /usr/include/x86_64-linux-gnu/libavformat/avformat.h:2050:6: note: declared here
[INFO] [stderr] warning:  2050 | void av_register_all(void);
[INFO] [stderr] warning:       |      ^~~~~~~~~~~~~~~
[INFO] [stderr] warning: src/libearwax.c: In function 'earwax_new':
[INFO] [stderr] warning: src/libearwax.c:206:19: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare]
[INFO] [stderr] warning:   206 |     for (i = 0; i < ctx->format_ctx->nb_streams; ++i) {
[INFO] [stderr] warning:       |                   ^
[INFO] [stderr] warning: src/libearwax.c:207:9: warning: 'codec' is deprecated [-Wdeprecated-declarations]
[INFO] [stderr] warning:   207 |         AVCodecContext* codec_ctx = ctx->format_ctx->streams[i]->codec;
[INFO] [stderr] warning:       |         ^~~~~~~~~~~~~~
[INFO] [stderr] warning: In file included from src/libearwax.c:10:
[INFO] [stderr] warning: /usr/include/x86_64-linux-gnu/libavformat/avformat.h:885:21: note: declared here
[INFO] [stderr] warning:   885 |     AVCodecContext *codec;
[INFO] [stderr] warning:       |                     ^~~~~
[INFO] [stderr] warning: src/libearwax.c:209:13: warning: 'avcodec_copy_context' is deprecated [-Wdeprecated-declarations]
[INFO] [stderr] warning:   209 |             avcodec_copy_context(ctx->codec_ctx, codec_ctx);
[INFO] [stderr] warning:       |             ^~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: In file included from src/libearwax.c:9:
[INFO] [stderr] warning: /usr/include/x86_64-linux-gnu/libavcodec/avcodec.h:4235:5: note: declared here
[INFO] [stderr] warning:  4235 | int avcodec_copy_context(AVCodecContext *dest, const AVCodecContext *src);
[INFO] [stderr] warning:       |     ^~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: src/libearwax.c: In function 'earwax_drop':
[INFO] [stderr] warning: src/libearwax.c:275:9: warning: 'av_free_packet' is deprecated [-Wdeprecated-declarations]
[INFO] [stderr] warning:   275 |         av_free_packet(&ctx->packet);
[INFO] [stderr] warning:       |         ^~~~~~~~~~~~~~
[INFO] [stderr] warning: In file included from src/libearwax.c:9:
[INFO] [stderr] warning: /usr/include/x86_64-linux-gnu/libavcodec/avcodec.h:4473:6: note: declared here
[INFO] [stderr] warning:  4473 | void av_free_packet(AVPacket *pkt);
[INFO] [stderr] warning:       |      ^~~~~~~~~~~~~~
[INFO] [stderr] warning: src/libearwax.c: In function 'earwax_spit':
[INFO] [stderr] warning: src/libearwax.c:306:9: warning: 'avcodec_decode_audio4' is deprecated [-Wdeprecated-declarations]
[INFO] [stderr] warning:   306 |         int bytes =  avcodec_decode_audio4(ctx->codec_ctx, ctx->frame, &got_frame, &(ctx->packet));
[INFO] [stderr] warning:       |         ^~~
[INFO] [stderr] warning: In file included from src/libearwax.c:9:
[INFO] [stderr] warning: /usr/include/x86_64-linux-gnu/libavcodec/avcodec.h:4779:5: note: declared here
[INFO] [stderr] warning:  4779 | int avcodec_decode_audio4(AVCodecContext *avctx, AVFrame *frame,
[INFO] [stderr] warning:       |     ^~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] warning: src/libearwax.c:331:9: warning: 'av_free_packet' is deprecated [-Wdeprecated-declarations]
[INFO] [stderr] warning:   331 |         av_free_packet(&ctx->packet);
[INFO] [stderr] warning:       |         ^~~~~~~~~~~~~~
[INFO] [stderr] warning: In file included from src/libearwax.c:9:
[INFO] [stderr] warning: /usr/include/x86_64-linux-gnu/libavcodec/avcodec.h:4473:6: note: declared here
[INFO] [stderr] warning:  4473 | void av_free_packet(AVPacket *pkt);
[INFO] [stderr] warning:       |      ^~~~~~~~~~~~~~
[INFO] [stderr] warning: src/libearwax.c: In function 'next_chunk':
[INFO] [stderr] warning: src/libearwax.c:375:17: warning: pointer targets in assignment from 'uint8_t *' {aka 'unsigned char *'} to 'char *' differ in signedness [-Wpointer-sign]
[INFO] [stderr] warning:   375 |     chunk->data = ctx->buffer;
[INFO] [stderr] warning:       |                 ^
[INFO] [stderr] warning: src/libearwax.c:377:5: warning: 'pkt_pts' is deprecated [-Wdeprecated-declarations]
[INFO] [stderr] warning:   377 |     chunk->time = ctx->frame->pkt_pts;
[INFO] [stderr] warning:       |     ^~~~~
[INFO] [stderr] warning: In file included from /usr/include/x86_64-linux-gnu/libavcodec/avcodec.h:38,
[INFO] [stderr] warning:                  from src/libearwax.c:9:
[INFO] [stderr] warning: /usr/include/x86_64-linux-gnu/libavutil/frame.h:396:13: note: declared here
[INFO] [stderr] warning:   396 |     int64_t pkt_pts;
[INFO] [stderr] warning:       |             ^~~~~~~
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking ao_rs v0.1.5
[INFO] [stdout] error[E0635]: unknown feature `unique`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ao_rs-0.1.5/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(unique)]
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ao_rs`
[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 `Command { std: "docker" "inspect" "70ef9bca1d23c46b1b5581caaa0520000c8137f4d5f1afead78577e932dc5a2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70ef9bca1d23c46b1b5581caaa0520000c8137f4d5f1afead78577e932dc5a2f", kill_on_drop: false }`
[INFO] [stdout] 70ef9bca1d23c46b1b5581caaa0520000c8137f4d5f1afead78577e932dc5a2f