[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/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/pwarren/rtl-entropy-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/pwarren/rtl-entropy-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/pwarren/rtl-entropy-rs" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/pwarren/rtl-entropy-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/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 master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of pwarren/rtl-entropy-rs on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "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/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/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/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/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" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking pwarren/rtl-entropy-rs against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-3/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/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=forbid" "-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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c1bedab162ed43f65aab4123cd8d66fb015208f2756e998c8e566194cdd3dbd7
[INFO] running `"docker" "start" "-a" "c1bedab162ed43f65aab4123cd8d66fb015208f2756e998c8e566194cdd3dbd7"`
[INFO] [stderr]     Checking bitstream-io v0.6.1
[INFO] [stderr]     Checking rtl-sdr v0.1.5
[INFO] [stderr]    Compiling libsodium-sys v0.0.15
[INFO] [stderr]     Checking sodiumoxide v0.0.15
[INFO] [stderr]     Checking 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] 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]     Finished dev [unoptimized + debuginfo] target(s) in 5.05s
[INFO] running `"docker" "inspect" "c1bedab162ed43f65aab4123cd8d66fb015208f2756e998c8e566194cdd3dbd7"`
[INFO] running `"docker" "rm" "-f" "c1bedab162ed43f65aab4123cd8d66fb015208f2756e998c8e566194cdd3dbd7"`
[INFO] [stdout] c1bedab162ed43f65aab4123cd8d66fb015208f2756e998c8e566194cdd3dbd7