[INFO] cloning repository zesterer/fuckvm
[INFO] running `"git" "clone" "--bare" "git://github.com/zesterer/fuckvm.git" "work/cache/sources/gh/zesterer/fuckvm"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/zesterer/fuckvm'...
[INFO] running `"git" "clone" "work/cache/sources/gh/zesterer/fuckvm" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/zesterer/fuckvm"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/zesterer/fuckvm'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/zesterer/fuckvm" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/zesterer/fuckvm"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/zesterer/fuckvm'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cf2751673cba6fe0eba6495ce0585958097add51
[INFO] sha for GitHub repo zesterer/fuckvm: cf2751673cba6fe0eba6495ce0585958097add51
[INFO] validating manifest of zesterer/fuckvm on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of zesterer/fuckvm on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing zesterer/fuckvm
[INFO] finished frobbing zesterer/fuckvm
[INFO] frobbed toml for zesterer/fuckvm written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/zesterer/fuckvm/Cargo.toml
[INFO] started frobbing zesterer/fuckvm
[INFO] finished frobbing zesterer/fuckvm
[INFO] frobbed toml for zesterer/fuckvm written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/zesterer/fuckvm/Cargo.toml
[INFO] crate zesterer/fuckvm already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing zesterer/fuckvm against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/zesterer/fuckvm:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] 34d9cd79ccb8d49a0f8a0148c2d77963a5b6334c6732e88c47332335ea99e499
[INFO] running `"docker" "start" "-a" "34d9cd79ccb8d49a0f8a0148c2d77963a5b6334c6732e88c47332335ea99e499"`
[INFO] [stderr]    Compiling fuckvm v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/bf/bfir.rs:113:17
[INFO] [stderr]     |
[INFO] [stderr] 113 |                 _ => unimplemented!(),
[INFO] [stderr]     |                 ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unreachable_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/ir/lir.rs:165:21
[INFO] [stderr]     |
[INFO] [stderr] 165 |                     _ => unimplemented!(),
[INFO] [stderr]     |                     ^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stack_size`
[INFO] [stderr]    --> src/bf/bfir.rs:111:37
[INFO] [stderr]     |
[INFO] [stderr] 111 |                 lir::Branch::Return(stack_size) =>
[INFO] [stderr]     |                                     ^^^^^^^^^^ help: consider prefixing with an underscore: `_stack_size`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SCRATCH_3`
[INFO] [stderr]    --> src/bf/bfir.rs:165:1
[INFO] [stderr]     |
[INFO] [stderr] 165 | const SCRATCH_3: usize = 9;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sub_byte_zeroing`
[INFO] [stderr]    --> src/bf/bfir.rs:189:1
[INFO] [stderr]     |
[INFO] [stderr] 189 | fn sub_byte_zeroing(from: usize, to: usize) -> String {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/test.rs:69:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     vm.exec(&bf);
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.14s
[INFO] running `"docker" "inspect" "34d9cd79ccb8d49a0f8a0148c2d77963a5b6334c6732e88c47332335ea99e499"`
[INFO] running `"docker" "rm" "-f" "34d9cd79ccb8d49a0f8a0148c2d77963a5b6334c6732e88c47332335ea99e499"`
[INFO] [stdout] 34d9cd79ccb8d49a0f8a0148c2d77963a5b6334c6732e88c47332335ea99e499
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/zesterer/fuckvm:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] fd55adf6bf694b65aa68c999525e56865be94f6324e963987326150d38b44c24
[INFO] running `"docker" "start" "-a" "fd55adf6bf694b65aa68c999525e56865be94f6324e963987326150d38b44c24"`
[INFO] [stderr]    Compiling fuckvm v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/test.rs:69:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     vm.exec(&bf);
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/bf/bfir.rs:113:17
[INFO] [stderr]     |
[INFO] [stderr] 113 |                 _ => unimplemented!(),
[INFO] [stderr]     |                 ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unreachable_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/ir/lir.rs:165:21
[INFO] [stderr]     |
[INFO] [stderr] 165 |                     _ => unimplemented!(),
[INFO] [stderr]     |                     ^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stack_size`
[INFO] [stderr]    --> src/bf/bfir.rs:111:37
[INFO] [stderr]     |
[INFO] [stderr] 111 |                 lir::Branch::Return(stack_size) =>
[INFO] [stderr]     |                                     ^^^^^^^^^^ help: consider prefixing with an underscore: `_stack_size`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SCRATCH_3`
[INFO] [stderr]    --> src/bf/bfir.rs:165:1
[INFO] [stderr]     |
[INFO] [stderr] 165 | const SCRATCH_3: usize = 9;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sub_byte_zeroing`
[INFO] [stderr]    --> src/bf/bfir.rs:189:1
[INFO] [stderr]     |
[INFO] [stderr] 189 | fn sub_byte_zeroing(from: usize, to: usize) -> String {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.87s
[INFO] running `"docker" "inspect" "fd55adf6bf694b65aa68c999525e56865be94f6324e963987326150d38b44c24"`
[INFO] running `"docker" "rm" "-f" "fd55adf6bf694b65aa68c999525e56865be94f6324e963987326150d38b44c24"`
[INFO] [stdout] fd55adf6bf694b65aa68c999525e56865be94f6324e963987326150d38b44c24
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-5/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/zesterer/fuckvm:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen"`
[INFO] [stdout] e583a6e7be6ed6853e8f45a9c96ab8c8a98a26dac54f7e0a4aac31a3e7bdb497
[INFO] running `"docker" "start" "-a" "e583a6e7be6ed6853e8f45a9c96ab8c8a98a26dac54f7e0a4aac31a3e7bdb497"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/fuckvm-a708315c7cd9c43a
[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] [stderr]      Running /opt/crater/target/debug/deps/test-d6acb01eeab8147f
[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] [stderr]      Running /opt/crater/target/debug/deps/vm-35eb118b76fb3a47
[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] [stderr]    Doc-tests fuckvm
[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" "e583a6e7be6ed6853e8f45a9c96ab8c8a98a26dac54f7e0a4aac31a3e7bdb497"`
[INFO] running `"docker" "rm" "-f" "e583a6e7be6ed6853e8f45a9c96ab8c8a98a26dac54f7e0a4aac31a3e7bdb497"`
[INFO] [stdout] e583a6e7be6ed6853e8f45a9c96ab8c8a98a26dac54f7e0a4aac31a3e7bdb497