[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-1.37-6/sources/1.36.0/gh/pwarren/rtl-entropy-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/pwarren/rtl-entropy-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/pwarren/rtl-entropy-rs" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/pwarren/rtl-entropy-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/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 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of pwarren/rtl-entropy-rs on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "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-1.37-6/sources/1.36.0/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-1.37-6/sources/beta-2019-07-23/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" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing pwarren/rtl-entropy-rs against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] feff23282288b5d85a67cd3ef4f1573ea49060b6211148a294342c4e78951a70
[INFO] running `"docker" "start" "-a" "feff23282288b5d85a67cd3ef4f1573ea49060b6211148a294342c4e78951a70"`
[INFO] [stderr]    Compiling serde v1.0.10
[INFO] [stderr]    Compiling argparse v0.2.1
[INFO] [stderr]    Compiling rtl-sdr v0.1.5
[INFO] [stderr]    Compiling bitstream-io v0.6.1
[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/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/rtl_entropy_rs-69d8d980e72a020d.rtl_entropy_rs.4oxpsz8i-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-69d8d980e72a020d.rtl_entropy_rs.4oxpsz8i-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-69d8d980e72a020d.rtl_entropy_rs.4oxpsz8i-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-69d8d980e72a020d.rtl_entropy_rs.4oxpsz8i-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-69d8d980e72a020d.rtl_entropy_rs.4oxpsz8i-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-69d8d980e72a020d.rtl_entropy_rs.4oxpsz8i-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-69d8d980e72a020d.rtl_entropy_rs.4oxpsz8i-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-69d8d980e72a020d.rtl_entropy_rs.4oxpsz8i-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-69d8d980e72a020d.rtl_entropy_rs.4oxpsz8i-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-69d8d980e72a020d.rtl_entropy_rs.4oxpsz8i-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-69d8d980e72a020d.rtl_entropy_rs.4oxpsz8i-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-69d8d980e72a020d.rtl_entropy_rs.4oxpsz8i-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-69d8d980e72a020d.rtl_entropy_rs.4oxpsz8i-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-69d8d980e72a020d.rtl_entropy_rs.4oxpsz8i-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-69d8d980e72a020d.rtl_entropy_rs.4oxpsz8i-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/rtl_entropy_rs-69d8d980e72a020d.rtl_entropy_rs.4oxpsz8i-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/rtl_entropy_rs-69d8d980e72a020d" "/opt/crater/target/debug/deps/rtl_entropy_rs-69d8d980e72a020d.276jp7ytr2ke6r2f.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/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libsodiumoxide-18c8527efca89412.rlib" "/opt/crater/target/debug/deps/libserde-0592d8ae6a7c16bf.rlib" "/opt/crater/target/debug/deps/liblibsodium_sys-0fad51dd8c125c11.rlib" "/opt/crater/target/debug/deps/liblibc-552f86cc1abc1492.rlib" "/opt/crater/target/debug/deps/libbitstream_io-fc6bab10a3179157.rlib" "/opt/crater/target/debug/deps/libargparse-795ae1138f8beafe.rlib" "/opt/crater/target/debug/deps/librtlsdr-dba516735ca8fd97.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-9895e8982b0a79e7.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-57306b8ed3378a0e.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-54463ae5adae3649.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-d99667b199a9875a.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-51f4300e102199f5.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-b3ccf1f7737a6a91.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-157c37a3ceb78853.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-505bcee45aafb736.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-c29abd529ba4452b.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-895383a3232f6572.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-5594cb4f559bc761.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-38e90baf978bc428.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" "feff23282288b5d85a67cd3ef4f1573ea49060b6211148a294342c4e78951a70"`
[INFO] running `"docker" "rm" "-f" "feff23282288b5d85a67cd3ef4f1573ea49060b6211148a294342c4e78951a70"`
[INFO] [stdout] feff23282288b5d85a67cd3ef4f1573ea49060b6211148a294342c4e78951a70