Nov 28 00:43:55.150 INFO checking mfs/box against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 00:43:55.150 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-7/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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"`
Nov 28 00:43:55.608 INFO [stdout] 826bdbca30b215388abad2e557195d7396ff29e814148bb35cbc3cff0d3350f9
Nov 28 00:43:55.612 INFO running `"docker" "start" "-a" "826bdbca30b215388abad2e557195d7396ff29e814148bb35cbc3cff0d3350f9"`
Nov 28 00:43:56.533 INFO [stderr] usermod: no changes
Nov 28 00:43:56.586 INFO [stderr]     Checking box v0.1.0 (/source)
Nov 28 00:43:57.053 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:43:57.053 INFO [stderr]   --> src/bin/assembler.rs:24:9
Nov 28 00:43:57.053 INFO [stderr]    |
Nov 28 00:43:57.053 INFO [stderr] 24 |     let mut reader = BufReader::new(f);
Nov 28 00:43:57.053 INFO [stderr]    |         ----^^^^^^
Nov 28 00:43:57.053 INFO [stderr]    |         |
Nov 28 00:43:57.053 INFO [stderr]    |         help: remove this `mut`
Nov 28 00:43:57.053 INFO [stderr]    |
Nov 28 00:43:57.053 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 00:43:57.053 INFO [stderr] 
Nov 28 00:43:57.053 INFO [stderr] warning: constant item is never used: `INSTRUCTIONS`
Nov 28 00:43:57.053 INFO [stderr]   --> src/bin/assembler.rs:7:1
Nov 28 00:43:57.053 INFO [stderr]    |
Nov 28 00:43:57.053 INFO [stderr] 7  | / const INSTRUCTIONS: &'static [&'static str] = &[
Nov 28 00:43:57.053 INFO [stderr] 8  | |     "nop", "jcn", "fim", "src", "fin", "jin", "jun", "jms", "inc", "isz", "add", "sub", "ld",
Nov 28 00:43:57.053 INFO [stderr] 9  | |     "xch", "bbl", "ldm", "wrm", "wmp", "wrr", "wr0", "wr1", "wr2", "wr3", "sbm", "rdm", "rdr",
Nov 28 00:43:57.053 INFO [stderr] 10 | |     "adm", "rd0", "rd1", "rd2", "rd3", "clb", "iac", "cmc", "cma", "ral", "rar", "tcc", "dac",
Nov 28 00:43:57.053 INFO [stderr] 11 | |     "tcs", "stc", "daa", "kbp", "dcl"
Nov 28 00:43:57.053 INFO [stderr] 12 | | ];
Nov 28 00:43:57.054 INFO [stderr]    | |__^
Nov 28 00:43:57.054 INFO [stderr]    |
Nov 28 00:43:57.054 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 00:43:57.054 INFO [stderr] 
Nov 28 00:43:57.054 INFO [stderr] warning: enum is never used: `Token`
Nov 28 00:43:57.054 INFO [stderr]   --> src/bin/assembler.rs:14:1
Nov 28 00:43:57.054 INFO [stderr]    |
Nov 28 00:43:57.054 INFO [stderr] 14 | enum Token {
Nov 28 00:43:57.054 INFO [stderr]    | ^^^^^^^^^^
Nov 28 00:43:57.054 INFO [stderr] 
Nov 28 00:43:57.088 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:43:57.088 INFO [stderr]   --> src/bin/assembler.rs:24:9
Nov 28 00:43:57.088 INFO [stderr]    |
Nov 28 00:43:57.088 INFO [stderr] 24 |     let mut reader = BufReader::new(f);
Nov 28 00:43:57.088 INFO [stderr]    |         ----^^^^^^
Nov 28 00:43:57.088 INFO [stderr]    |         |
Nov 28 00:43:57.088 INFO [stderr]    |         help: remove this `mut`
Nov 28 00:43:57.092 INFO [stderr]    |
Nov 28 00:43:57.092 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 00:43:57.092 INFO [stderr] 
Nov 28 00:43:57.092 INFO [stderr] warning: constant item is never used: `INSTRUCTIONS`
Nov 28 00:43:57.092 INFO [stderr]   --> src/bin/assembler.rs:7:1
Nov 28 00:43:57.092 INFO [stderr]    |
Nov 28 00:43:57.092 INFO [stderr] 7  | / const INSTRUCTIONS: &'static [&'static str] = &[
Nov 28 00:43:57.092 INFO [stderr] 8  | |     "nop", "jcn", "fim", "src", "fin", "jin", "jun", "jms", "inc", "isz", "add", "sub", "ld",
Nov 28 00:43:57.092 INFO [stderr] 9  | |     "xch", "bbl", "ldm", "wrm", "wmp", "wrr", "wr0", "wr1", "wr2", "wr3", "sbm", "rdm", "rdr",
Nov 28 00:43:57.092 INFO [stderr] 10 | |     "adm", "rd0", "rd1", "rd2", "rd3", "clb", "iac", "cmc", "cma", "ral", "rar", "tcc", "dac",
Nov 28 00:43:57.092 INFO [stderr] 11 | |     "tcs", "stc", "daa", "kbp", "dcl"
Nov 28 00:43:57.092 INFO [stderr] 12 | | ];
Nov 28 00:43:57.092 INFO [stderr]    | |__^
Nov 28 00:43:57.092 INFO [stderr]    |
Nov 28 00:43:57.092 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 00:43:57.092 INFO [stderr] 
Nov 28 00:43:57.092 INFO [stderr] warning: enum is never used: `Token`
Nov 28 00:43:57.092 INFO [stderr]   --> src/bin/assembler.rs:14:1
Nov 28 00:43:57.092 INFO [stderr]    |
Nov 28 00:43:57.092 INFO [stderr] 14 | enum Token {
Nov 28 00:43:57.092 INFO [stderr]    | ^^^^^^^^^^
Nov 28 00:43:57.092 INFO [stderr] 
Nov 28 00:43:57.466 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
Nov 28 00:43:57.469 INFO [stderr] su: No module specific data is present
Nov 28 00:43:57.746 INFO running `"docker" "inspect" "826bdbca30b215388abad2e557195d7396ff29e814148bb35cbc3cff0d3350f9"`
Nov 28 00:43:57.915 INFO running `"docker" "rm" "-f" "826bdbca30b215388abad2e557195d7396ff29e814148bb35cbc3cff0d3350f9"`
Nov 28 00:43:58.137 INFO [stdout] 826bdbca30b215388abad2e557195d7396ff29e814148bb35cbc3cff0d3350f9