[INFO] updating cached repository Lagoja/rust_hack_virtualmachine
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Lagoja/rust_hack_virtualmachine
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Lagoja/rust_hack_virtualmachine" "work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/Lagoja/rust_hack_virtualmachine"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/Lagoja/rust_hack_virtualmachine'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Lagoja/rust_hack_virtualmachine" "work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/Lagoja/rust_hack_virtualmachine"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/Lagoja/rust_hack_virtualmachine'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e216f73230ff8ff824f355a0ef5a98fc92842730
[INFO] sha for GitHub repo Lagoja/rust_hack_virtualmachine: e216f73230ff8ff824f355a0ef5a98fc92842730
[INFO] validating manifest of Lagoja/rust_hack_virtualmachine on toolchain master#f66e4697ae286985ddefc53c3a047614568458bb
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Lagoja/rust_hack_virtualmachine on toolchain try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Lagoja/rust_hack_virtualmachine
[INFO] finished frobbing Lagoja/rust_hack_virtualmachine
[INFO] frobbed toml for Lagoja/rust_hack_virtualmachine written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/Lagoja/rust_hack_virtualmachine/Cargo.toml
[INFO] started frobbing Lagoja/rust_hack_virtualmachine
[INFO] finished frobbing Lagoja/rust_hack_virtualmachine
[INFO] frobbed toml for Lagoja/rust_hack_virtualmachine written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/Lagoja/rust_hack_virtualmachine/Cargo.toml
[INFO] crate Lagoja/rust_hack_virtualmachine has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Lagoja/rust_hack_virtualmachine against try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a for pr-58592
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58592/worker-0/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/Lagoja/rust_hack_virtualmachine:/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" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] eda817ca7024b5a36ffe270ae11d1d0c8dde393cc849f1dbd547f4d1f9fb9c8e
[INFO] running `"docker" "start" "-a" "eda817ca7024b5a36ffe270ae11d1d0c8dde393cc849f1dbd547f4d1f9fb9c8e"`
[INFO] [stderr]     Checking aho-corasick v0.6.8
[INFO] [stderr]     Checking regex v1.0.5
[INFO] [stderr]     Checking rusthackvm v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/lib/parser.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn new() -> Parser {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_rule`
[INFO] [stderr]   --> src/lib/tokenizer.rs:83:5
[INFO] [stderr]    |
[INFO] [stderr] 83 |     pub fn add_rule(&mut self, match_rule: MatchRule) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `contains`
[INFO] [stderr]   --> src/lib/symbol_table.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn contains(&self, symbol: &str) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_free_address`
[INFO] [stderr]   --> src/lib/symbol_table.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn get_free_address(&self) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_rule`
[INFO] [stderr]   --> src/lib/tokenizer.rs:83:5
[INFO] [stderr]    |
[INFO] [stderr] 83 |     pub fn add_rule(&mut self, match_rule: MatchRule) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_free_address`
[INFO] [stderr]   --> src/lib/symbol_table.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn get_free_address(&self) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.56s
[INFO] running `"docker" "inspect" "eda817ca7024b5a36ffe270ae11d1d0c8dde393cc849f1dbd547f4d1f9fb9c8e"`
[INFO] running `"docker" "rm" "-f" "eda817ca7024b5a36ffe270ae11d1d0c8dde393cc849f1dbd547f4d1f9fb9c8e"`
[INFO] [stdout] eda817ca7024b5a36ffe270ae11d1d0c8dde393cc849f1dbd547f4d1f9fb9c8e