[INFO] crate bitpacker 0.1.0 is already in cache
[INFO] extracting crate bitpacker 0.1.0 into work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/reg/bitpacker/0.1.0
[INFO] extracting crate bitpacker 0.1.0 into work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/reg/bitpacker/0.1.0
[INFO] validating manifest of bitpacker-0.1.0 on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of bitpacker-0.1.0 on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing bitpacker-0.1.0
[INFO] finished frobbing bitpacker-0.1.0
[INFO] frobbed toml for bitpacker-0.1.0 written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/reg/bitpacker/0.1.0/Cargo.toml
[INFO] started frobbing bitpacker-0.1.0
[INFO] finished frobbing bitpacker-0.1.0
[INFO] frobbed toml for bitpacker-0.1.0 written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/reg/bitpacker/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking bitpacker-0.1.0 against try#75eff020d0923c035c2fe220db4a0465cd847048 for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-6/try#75eff020d0923c035c2fe220db4a0465cd847048:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/reg/bitpacker/0.1.0:/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" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c9eff352c962720ff986fe165815d2fe3b3641ffc791f2d9c1fcf1a8f8bb9648
[INFO] running `"docker" "start" "-a" "c9eff352c962720ff986fe165815d2fe3b3641ffc791f2d9c1fcf1a8f8bb9648"`
[INFO] [stderr]     Checking bitpacker v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `bin`
[INFO] [stderr]  --> src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn bin(byte: u8) -> String {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Packer`
[INFO] [stderr]  --> src/lib.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | struct Packer {
[INFO] [stderr]   | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/lib.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new() -> Packer {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `buffer`
[INFO] [stderr]   --> src/lib.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub fn buffer(&self) -> &[u8] {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pack`
[INFO] [stderr]   --> src/lib.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn pack(&mut self, value: u64, bits: usize) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `total_bits`
[INFO] [stderr]   --> src/lib.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     pub fn total_bits(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Unpacker`
[INFO] [stderr]   --> src/lib.rs:58:1
[INFO] [stderr]    |
[INFO] [stderr] 58 | struct Unpacker<'a> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/lib.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn new(buffer: &'a [u8]) -> Unpacker {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `total_bits`
[INFO] [stderr]   --> src/lib.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     pub fn total_bits(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `remaining_bits`
[INFO] [stderr]   --> src/lib.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn remaining_bits(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `unpack`
[INFO] [stderr]   --> src/lib.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 |     pub fn unpack(&mut self, bits: usize) -> u64 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bin`
[INFO] [stderr]  --> src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn bin(byte: u8) -> String {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `"docker" "inspect" "c9eff352c962720ff986fe165815d2fe3b3641ffc791f2d9c1fcf1a8f8bb9648"`
[INFO] running `"docker" "rm" "-f" "c9eff352c962720ff986fe165815d2fe3b3641ffc791f2d9c1fcf1a8f8bb9648"`
[INFO] [stdout] c9eff352c962720ff986fe165815d2fe3b3641ffc791f2d9c1fcf1a8f8bb9648