[INFO] updating cached repository pwarren/rtl-entropy-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/pwarren/rtl-entropy-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/pwarren/rtl-entropy-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/pwarren/rtl-entropy-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/pwarren/rtl-entropy-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/pwarren/rtl-entropy-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pwarren/rtl-entropy-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pwarren/rtl-entropy-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 78e3f5f14a504da20147e437049744f8310fc27e
[INFO] sha for GitHub repo pwarren/rtl-entropy-rs: 78e3f5f14a504da20147e437049744f8310fc27e
[INFO] validating manifest of pwarren/rtl-entropy-rs on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of pwarren/rtl-entropy-rs on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing pwarren/rtl-entropy-rs
[INFO] finished frobbing pwarren/rtl-entropy-rs
[INFO] frobbed toml for pwarren/rtl-entropy-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/pwarren/rtl-entropy-rs/Cargo.toml
[INFO] started frobbing pwarren/rtl-entropy-rs
[INFO] finished frobbing pwarren/rtl-entropy-rs
[INFO] frobbed toml for pwarren/rtl-entropy-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pwarren/rtl-entropy-rs/Cargo.toml
[INFO] crate pwarren/rtl-entropy-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing pwarren/rtl-entropy-rs against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/pwarren/rtl-entropy-rs:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] ef2e7560ad5d86310adc48f0b07b6765feaa515f1b1ad366742e221def46385a
[INFO] running `"docker" "start" "-a" "ef2e7560ad5d86310adc48f0b07b6765feaa515f1b1ad366742e221def46385a"`
[INFO] [stderr]    Compiling serde v1.0.10
[INFO] [stderr]    Compiling argparse v0.2.1
[INFO] [stderr]    Compiling bitstream-io v0.6.1
[INFO] [stderr]    Compiling rtl-sdr v0.1.5
[INFO] [stderr]    Compiling libsodium-sys v0.0.15
[INFO] [stderr]    Compiling sodiumoxide v0.0.15
[INFO] [stderr]    Compiling rtl-entropy-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `bit1`
[INFO] [stderr]    --> src/main.rs:226:21
[INFO] [stderr]     |
[INFO] [stderr] 226 |                 let bit1 = match bit1 {
[INFO] [stderr]     |                     ^^^^ help: consider prefixing with an underscore: `_bit1`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bit1`
[INFO] [stderr]    --> src/main.rs:231:21
[INFO] [stderr]     |
[INFO] [stderr] 231 |                 let bit1 = match bit1 {
[INFO] [stderr]     |                     ^^^^ help: consider prefixing with an underscore: `_bit1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `count`
[INFO] [stderr]    --> src/main.rs:391:20
[INFO] [stderr]     |
[INFO] [stderr] 391 |         let (data, count, err) = dev.read_sync(rtlsdr::DEFAULT_BUF_LENGTH);
[INFO] [stderr]     |                    ^^^^^ help: consider prefixing with an underscore: `_count`
[INFO] [stderr] 
[INFO] [stderr] error: linking with `cc` failed: exit code: 1
[INFO] [stderr]   |
[INFO] [stderr]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/rtl_entropy_rs-ef0d447eea2dbb93.rtl_entropy_rs.ckhufruy-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-ef0d447eea2dbb93.rtl_entropy_rs.ckhufruy-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-ef0d447eea2dbb93.rtl_entropy_rs.ckhufruy-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-ef0d447eea2dbb93.rtl_entropy_rs.ckhufruy-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-ef0d447eea2dbb93.rtl_entropy_rs.ckhufruy-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-ef0d447eea2dbb93.rtl_entropy_rs.ckhufruy-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-ef0d447eea2dbb93.rtl_entropy_rs.ckhufruy-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-ef0d447eea2dbb93.rtl_entropy_rs.ckhufruy-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-ef0d447eea2dbb93.rtl_entropy_rs.ckhufruy-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-ef0d447eea2dbb93.rtl_entropy_rs.ckhufruy-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-ef0d447eea2dbb93.rtl_entropy_rs.ckhufruy-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-ef0d447eea2dbb93.rtl_entropy_rs.ckhufruy-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-ef0d447eea2dbb93.rtl_entropy_rs.ckhufruy-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-ef0d447eea2dbb93.rtl_entropy_rs.ckhufruy-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-ef0d447eea2dbb93.rtl_entropy_rs.ckhufruy-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-ef0d447eea2dbb93.rtl_entropy_rs.ckhufruy-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/rtl_entropy_rs-ef0d447eea2dbb93" "/opt/crater/target/debug/deps/rtl_entropy_rs-ef0d447eea2dbb93.2frowk7mederzex2.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/usr/lib/x86_64-linux-gnu" "-L" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libsodiumoxide-704562dce4b7603d.rlib" "/opt/crater/target/debug/deps/libserde-6d25e92cdddf2603.rlib" "/opt/crater/target/debug/deps/liblibsodium_sys-0f7c8d0a7fd0407d.rlib" "/opt/crater/target/debug/deps/liblibc-909525acc8e68ae0.rlib" "/opt/crater/target/debug/deps/libbitstream_io-56db64f03f3bda37.rlib" "/opt/crater/target/debug/deps/libargparse-52639055c41a5b25.rlib" "/opt/crater/target/debug/deps/librtlsdr-92ed3c1895b8864e.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-4a76ff35a356aedf.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e11c7b3b3225afe2.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-13217ede3d276f16.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-621a9ee22da6caa1.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-546c844e8071bbeb.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-be9569e4d599746f.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-47d8845cef2a3bc5.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-017511bce73a530c.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-be7979c57a08057b.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-d6459c4f0817c67c.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-580035dd98451925.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-aee5c24fff305dea.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-8a55a4098920125a.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-9fc4b5be2ba5cc19.rlib" "-Wl,-Bdynamic" "-lsodium" "-lutil" "-lrtlsdr" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -lrtlsdr
[INFO] [stderr]           collect2: error: ld returned 1 exit status
[INFO] [stderr]           
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rtl-entropy-rs`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "ef2e7560ad5d86310adc48f0b07b6765feaa515f1b1ad366742e221def46385a"`
[INFO] running `"docker" "rm" "-f" "ef2e7560ad5d86310adc48f0b07b6765feaa515f1b1ad366742e221def46385a"`
[INFO] [stdout] ef2e7560ad5d86310adc48f0b07b6765feaa515f1b1ad366742e221def46385a