[INFO] updating cached repository ioncodes/Xiu
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ioncodes/Xiu
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ioncodes/Xiu" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ioncodes/Xiu"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ioncodes/Xiu'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ioncodes/Xiu" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ioncodes/Xiu"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ioncodes/Xiu'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a645fadb116de275c2a9af8e76d6001a58d2156b
[INFO] sha for GitHub repo ioncodes/Xiu: a645fadb116de275c2a9af8e76d6001a58d2156b
[INFO] validating manifest of ioncodes/Xiu on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ioncodes/Xiu on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ioncodes/Xiu
[INFO] finished frobbing ioncodes/Xiu
[INFO] frobbed toml for ioncodes/Xiu written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ioncodes/Xiu/Cargo.toml
[INFO] started frobbing ioncodes/Xiu
[INFO] finished frobbing ioncodes/Xiu
[INFO] frobbed toml for ioncodes/Xiu written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ioncodes/Xiu/Cargo.toml
[INFO] crate ioncodes/Xiu has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ioncodes/Xiu against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-6/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ioncodes/Xiu:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] 9699c8ea663cb549e39c9af8c6e1703219167283309e91ea3ed4398cc6038207
[INFO] running `"docker" "start" "-a" "9699c8ea663cb549e39c9af8c6e1703219167283309e91ea3ed4398cc6038207"`
[INFO] [stderr]    Compiling xiu v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `register`
[INFO] [stderr]    --> src/cpu.rs:113:22
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn rl(&mut self, register: Register) -> Option<Vec<usize>> {
[INFO] [stderr]     |                      ^^^^^^^^ help: consider prefixing with an underscore: `_register`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `A`
[INFO] [stderr]  --> src/registers.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     A,
[INFO] [stderr]   |     ^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `D`
[INFO] [stderr]  --> src/registers.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     D,
[INFO] [stderr]   |     ^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `E`
[INFO] [stderr]  --> src/registers.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     E,
[INFO] [stderr]   |     ^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `F`
[INFO] [stderr]  --> src/registers.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     F,
[INFO] [stderr]   |     ^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `H`
[INFO] [stderr]   --> src/registers.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     H,
[INFO] [stderr]    |     ^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `L`
[INFO] [stderr]   --> src/registers.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     L,
[INFO] [stderr]    |     ^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AF`
[INFO] [stderr]   --> src/registers.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     AF,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `DE`
[INFO] [stderr]   --> src/registers.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     DE,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `HL`
[INFO] [stderr]   --> src/registers.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     HL,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pop`
[INFO] [stderr]   --> src/stack.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn pop(&mut self) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_assembly`
[INFO] [stderr]   --> src/instructions.rs:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 | pub fn get_assembly(instr: u8) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_prefixed_assembly`
[INFO] [stderr]   --> src/instructions.rs:82:1
[INFO] [stderr]    |
[INFO] [stderr] 82 | pub fn get_prefixed_assembly(instr: u8) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: literal out of range for u8
[INFO] [stderr]    --> src/registers.rs:325:12
[INFO] [stderr]     |
[INFO] [stderr] 325 |         -((256 + (!byte + 1)) as i8)
[INFO] [stderr]     |            ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(overflowing_literals)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `"docker" "inspect" "9699c8ea663cb549e39c9af8c6e1703219167283309e91ea3ed4398cc6038207"`
[INFO] running `"docker" "rm" "-f" "9699c8ea663cb549e39c9af8c6e1703219167283309e91ea3ed4398cc6038207"`
[INFO] [stdout] 9699c8ea663cb549e39c9af8c6e1703219167283309e91ea3ed4398cc6038207
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-6/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ioncodes/Xiu:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 63ad84843a13b6ef109b472cd5f6a8dee942f83f2e5734b7e232cebd91f90de8
[INFO] running `"docker" "start" "-a" "63ad84843a13b6ef109b472cd5f6a8dee942f83f2e5734b7e232cebd91f90de8"`
[INFO] [stderr]    Compiling xiu v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `register`
[INFO] [stderr]    --> src/cpu.rs:113:22
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn rl(&mut self, register: Register) -> Option<Vec<usize>> {
[INFO] [stderr]     |                      ^^^^^^^^ help: consider prefixing with an underscore: `_register`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `A`
[INFO] [stderr]  --> src/registers.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     A,
[INFO] [stderr]   |     ^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `D`
[INFO] [stderr]  --> src/registers.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     D,
[INFO] [stderr]   |     ^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `E`
[INFO] [stderr]  --> src/registers.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     E,
[INFO] [stderr]   |     ^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `F`
[INFO] [stderr]  --> src/registers.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     F,
[INFO] [stderr]   |     ^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `H`
[INFO] [stderr]   --> src/registers.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     H,
[INFO] [stderr]    |     ^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `L`
[INFO] [stderr]   --> src/registers.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     L,
[INFO] [stderr]    |     ^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AF`
[INFO] [stderr]   --> src/registers.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     AF,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `DE`
[INFO] [stderr]   --> src/registers.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     DE,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `HL`
[INFO] [stderr]   --> src/registers.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     HL,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pop`
[INFO] [stderr]   --> src/stack.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn pop(&mut self) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_assembly`
[INFO] [stderr]   --> src/instructions.rs:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 | pub fn get_assembly(instr: u8) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_prefixed_assembly`
[INFO] [stderr]   --> src/instructions.rs:82:1
[INFO] [stderr]    |
[INFO] [stderr] 82 | pub fn get_prefixed_assembly(instr: u8) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: literal out of range for u8
[INFO] [stderr]    --> src/registers.rs:325:12
[INFO] [stderr]     |
[INFO] [stderr] 325 |         -((256 + (!byte + 1)) as i8)
[INFO] [stderr]     |            ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(overflowing_literals)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `"docker" "inspect" "63ad84843a13b6ef109b472cd5f6a8dee942f83f2e5734b7e232cebd91f90de8"`
[INFO] running `"docker" "rm" "-f" "63ad84843a13b6ef109b472cd5f6a8dee942f83f2e5734b7e232cebd91f90de8"`
[INFO] [stdout] 63ad84843a13b6ef109b472cd5f6a8dee942f83f2e5734b7e232cebd91f90de8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-6/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ioncodes/Xiu:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"`
[INFO] [stdout] f96ee2d3ca66626636a8bd71b31f37765067152a817cf35d5ce3520043c61d17
[INFO] running `"docker" "start" "-a" "f96ee2d3ca66626636a8bd71b31f37765067152a817cf35d5ce3520043c61d17"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/xiu-5df2156ea9c29b10
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "f96ee2d3ca66626636a8bd71b31f37765067152a817cf35d5ce3520043c61d17"`
[INFO] running `"docker" "rm" "-f" "f96ee2d3ca66626636a8bd71b31f37765067152a817cf35d5ce3520043c61d17"`
[INFO] [stdout] f96ee2d3ca66626636a8bd71b31f37765067152a817cf35d5ce3520043c61d17