Dec 11 15:57:42.092 INFO checking julian-goldsmith/huffman-rust against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 15:57:42.092 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-5/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 11 15:57:42.514 INFO [stdout] 3ceef16ec3a3baf778141abec461e8847310ebe5a925d3a9aa6372f65a760b56
Dec 11 15:57:42.516 INFO running `"docker" "start" "-a" "3ceef16ec3a3baf778141abec461e8847310ebe5a925d3a9aa6372f65a760b56"`
Dec 11 15:57:43.548 INFO [stderr] usermod: no changes
Dec 11 15:57:43.654 INFO [stderr]     Checking huffman-rust v0.1.0 (/source)
Dec 11 15:57:44.291 INFO [stderr] warning: unused imports: `ReadBytesExt`, `WriteBytesExt`
Dec 11 15:57:44.292 INFO [stderr]  --> src/huffman/mod.rs:8:17
Dec 11 15:57:44.292 INFO [stderr]   |
Dec 11 15:57:44.292 INFO [stderr] 8 | use byteorder::{ReadBytesExt, WriteBytesExt};
Dec 11 15:57:44.292 INFO [stderr]   |                 ^^^^^^^^^^^^  ^^^^^^^^^^^^^
Dec 11 15:57:44.293 INFO [stderr]   |
Dec 11 15:57:44.293 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 15:57:44.293 INFO [stderr] 
Dec 11 15:57:44.293 INFO [stderr] warning: unused import: `std::iter`
Dec 11 15:57:44.293 INFO [stderr]  --> src/rle.rs:1:5
Dec 11 15:57:44.293 INFO [stderr]   |
Dec 11 15:57:44.293 INFO [stderr] 1 | use std::iter;
Dec 11 15:57:44.293 INFO [stderr]   |     ^^^^^^^^^
Dec 11 15:57:44.293 INFO [stderr] 
Dec 11 15:57:44.320 INFO [stderr] warning: unused imports: `ReadBytesExt`, `WriteBytesExt`
Dec 11 15:57:44.320 INFO [stderr]  --> src/huffman/mod.rs:8:17
Dec 11 15:57:44.320 INFO [stderr]   |
Dec 11 15:57:44.320 INFO [stderr] 8 | use byteorder::{ReadBytesExt, WriteBytesExt};
Dec 11 15:57:44.320 INFO [stderr]   |                 ^^^^^^^^^^^^  ^^^^^^^^^^^^^
Dec 11 15:57:44.320 INFO [stderr]   |
Dec 11 15:57:44.320 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 15:57:44.320 INFO [stderr] 
Dec 11 15:57:44.320 INFO [stderr] warning: unused import: `std::iter`
Dec 11 15:57:44.320 INFO [stderr]  --> src/rle.rs:1:5
Dec 11 15:57:44.320 INFO [stderr]   |
Dec 11 15:57:44.320 INFO [stderr] 1 | use std::iter;
Dec 11 15:57:44.320 INFO [stderr]   |     ^^^^^^^^^
Dec 11 15:57:44.320 INFO [stderr] 
Dec 11 15:57:44.688 INFO [stderr] warning: unused variable: `err`
Dec 11 15:57:44.688 INFO [stderr]    --> src/bitstream.rs:108:17
Dec 11 15:57:44.688 INFO [stderr]     |
Dec 11 15:57:44.688 INFO [stderr] 108 |             Err(err) => return Ok(None),        // FIXME: handle non-EOF
Dec 11 15:57:44.688 INFO [stderr]     |                 ^^^ help: consider using `_err` instead
Dec 11 15:57:44.688 INFO [stderr]     |
Dec 11 15:57:44.688 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 11 15:57:44.688 INFO [stderr] 
Dec 11 15:57:44.704 INFO [stderr] warning: unused variable: `err`
Dec 11 15:57:44.704 INFO [stderr]    --> src/bitstream.rs:108:17
Dec 11 15:57:44.704 INFO [stderr]     |
Dec 11 15:57:44.704 INFO [stderr] 108 |             Err(err) => return Ok(None),        // FIXME: handle non-EOF
Dec 11 15:57:44.704 INFO [stderr]     |                 ^^^ help: consider using `_err` instead
Dec 11 15:57:44.704 INFO [stderr]     |
Dec 11 15:57:44.704 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 11 15:57:44.704 INFO [stderr] 
Dec 11 15:57:44.740 INFO [stderr] warning: variable does not need to be mutable
Dec 11 15:57:44.740 INFO [stderr]   --> src/huffman/mod.rs:25:27
Dec 11 15:57:44.740 INFO [stderr]    |
Dec 11 15:57:44.740 INFO [stderr] 25 |     fn write_freqs(&self, mut writer: &mut Write) -> io::Result<usize> {
Dec 11 15:57:44.740 INFO [stderr]    |                           ----^^^^^^
Dec 11 15:57:44.740 INFO [stderr]    |                           |
Dec 11 15:57:44.740 INFO [stderr]    |                           help: remove this `mut`
Dec 11 15:57:44.740 INFO [stderr]    |
Dec 11 15:57:44.740 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 15:57:44.740 INFO [stderr] 
Dec 11 15:57:44.756 INFO [stderr] warning: variable does not need to be mutable
Dec 11 15:57:44.756 INFO [stderr]   --> src/huffman/mod.rs:25:27
Dec 11 15:57:44.756 INFO [stderr]    |
Dec 11 15:57:44.756 INFO [stderr] 25 |     fn write_freqs(&self, mut writer: &mut Write) -> io::Result<usize> {
Dec 11 15:57:44.756 INFO [stderr]    |                           ----^^^^^^
Dec 11 15:57:44.756 INFO [stderr]    |                           |
Dec 11 15:57:44.756 INFO [stderr]    |                           help: remove this `mut`
Dec 11 15:57:44.756 INFO [stderr]    |
Dec 11 15:57:44.756 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 15:57:44.756 INFO [stderr] 
Dec 11 15:57:44.911 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.34s
Dec 11 15:57:44.924 INFO [stderr] su: No module specific data is present
Dec 11 15:57:45.498 INFO running `"docker" "inspect" "3ceef16ec3a3baf778141abec461e8847310ebe5a925d3a9aa6372f65a760b56"`
Dec 11 15:57:45.780 INFO running `"docker" "rm" "-f" "3ceef16ec3a3baf778141abec461e8847310ebe5a925d3a9aa6372f65a760b56"`
Dec 11 15:57:46.042 INFO [stdout] 3ceef16ec3a3baf778141abec461e8847310ebe5a925d3a9aa6372f65a760b56