[INFO] updating cached repository ubsan/z80
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ubsan/z80
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ubsan/z80" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ubsan/z80"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ubsan/z80'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ubsan/z80" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ubsan/z80"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ubsan/z80'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6feaeac2aaae11e9353caf6688cc993cd3568fee
[INFO] sha for GitHub repo ubsan/z80: 6feaeac2aaae11e9353caf6688cc993cd3568fee
[INFO] validating manifest of ubsan/z80 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 ubsan/z80 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 ubsan/z80
[INFO] finished frobbing ubsan/z80
[INFO] frobbed toml for ubsan/z80 written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ubsan/z80/Cargo.toml
[INFO] started frobbing ubsan/z80
[INFO] finished frobbing ubsan/z80
[INFO] frobbed toml for ubsan/z80 written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ubsan/z80/Cargo.toml
[INFO] crate ubsan/z80 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 ubsan/z80 against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ubsan/z80:/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] 7bd3626ba9953f69374eda91c1d01f849b5b0cb16d3122a43d6aa8155c80a6d3
[INFO] running `"docker" "start" "-a" "7bd3626ba9953f69374eda91c1d01f849b5b0cb16d3122a43d6aa8155c80a6d3"`
[INFO] [stderr]    Compiling encode_unicode v0.1.3
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling rustyline v1.0.0
[INFO] [stderr]    Compiling retro v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/chip/mod.rs:58:33
[INFO] [stderr]    |
[INFO] [stderr] 58 |         (res, false, false, res.count_ones() % 2 == 0)
[INFO] [stderr]    |                                 ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unstable_name_collisions)] on by default
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `wrapping::Extensions::count_ones(...)` to keep using the current method
[INFO] [stderr]    = help: add #![feature(wrapping_int_impl)] to the crate attributes to enable `core::num::wrapping::<impl std::num::Wrapping<u8>>::count_ones`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/chip/mod.rs:62:33
[INFO] [stderr]    |
[INFO] [stderr] 62 |         (res, false, false, res.count_ones() % 2 == 0)
[INFO] [stderr]    |                                 ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `wrapping::Extensions::count_ones(...)` to keep using the current method
[INFO] [stderr]    = help: add #![feature(wrapping_int_impl)] to the crate attributes to enable `core::num::wrapping::<impl std::num::Wrapping<u8>>::count_ones`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/chip/mod.rs:66:33
[INFO] [stderr]    |
[INFO] [stderr] 66 |         (res, false, false, res.count_ones() % 2 == 0)
[INFO] [stderr]    |                                 ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `wrapping::Extensions::count_ones(...)` to keep using the current method
[INFO] [stderr]    = help: add #![feature(wrapping_int_impl)] to the crate attributes to enable `core::num::wrapping::<impl std::num::Wrapping<u8>>::count_ones`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.47s
[INFO] running `"docker" "inspect" "7bd3626ba9953f69374eda91c1d01f849b5b0cb16d3122a43d6aa8155c80a6d3"`
[INFO] running `"docker" "rm" "-f" "7bd3626ba9953f69374eda91c1d01f849b5b0cb16d3122a43d6aa8155c80a6d3"`
[INFO] [stdout] 7bd3626ba9953f69374eda91c1d01f849b5b0cb16d3122a43d6aa8155c80a6d3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ubsan/z80:/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] 19d2ee8ef3b2eb2cc7af4c3a1cbff33b8b4009fa884441542d21af6816e00cfc
[INFO] running `"docker" "start" "-a" "19d2ee8ef3b2eb2cc7af4c3a1cbff33b8b4009fa884441542d21af6816e00cfc"`
[INFO] [stderr]    Compiling retro v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/chip/mod.rs:58:33
[INFO] [stderr]    |
[INFO] [stderr] 58 |         (res, false, false, res.count_ones() % 2 == 0)
[INFO] [stderr]    |                                 ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unstable_name_collisions)] on by default
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `wrapping::Extensions::count_ones(...)` to keep using the current method
[INFO] [stderr]    = help: add #![feature(wrapping_int_impl)] to the crate attributes to enable `core::num::wrapping::<impl std::num::Wrapping<u8>>::count_ones`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/chip/mod.rs:62:33
[INFO] [stderr]    |
[INFO] [stderr] 62 |         (res, false, false, res.count_ones() % 2 == 0)
[INFO] [stderr]    |                                 ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `wrapping::Extensions::count_ones(...)` to keep using the current method
[INFO] [stderr]    = help: add #![feature(wrapping_int_impl)] to the crate attributes to enable `core::num::wrapping::<impl std::num::Wrapping<u8>>::count_ones`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/chip/mod.rs:66:33
[INFO] [stderr]    |
[INFO] [stderr] 66 |         (res, false, false, res.count_ones() % 2 == 0)
[INFO] [stderr]    |                                 ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `wrapping::Extensions::count_ones(...)` to keep using the current method
[INFO] [stderr]    = help: add #![feature(wrapping_int_impl)] to the crate attributes to enable `core::num::wrapping::<impl std::num::Wrapping<u8>>::count_ones`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `"docker" "inspect" "19d2ee8ef3b2eb2cc7af4c3a1cbff33b8b4009fa884441542d21af6816e00cfc"`
[INFO] running `"docker" "rm" "-f" "19d2ee8ef3b2eb2cc7af4c3a1cbff33b8b4009fa884441542d21af6816e00cfc"`
[INFO] [stdout] 19d2ee8ef3b2eb2cc7af4c3a1cbff33b8b4009fa884441542d21af6816e00cfc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ubsan/z80:/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] 8cedfb8c697d393d41be8bf35f3e1c6af422a035aa4917aa12f0c38e99b8a211
[INFO] running `"docker" "start" "-a" "8cedfb8c697d393d41be8bf35f3e1c6af422a035aa4917aa12f0c38e99b8a211"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/retro-2c7e5f6754aa3386
[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" "8cedfb8c697d393d41be8bf35f3e1c6af422a035aa4917aa12f0c38e99b8a211"`
[INFO] running `"docker" "rm" "-f" "8cedfb8c697d393d41be8bf35f3e1c6af422a035aa4917aa12f0c38e99b8a211"`
[INFO] [stdout] 8cedfb8c697d393d41be8bf35f3e1c6af422a035aa4917aa12f0c38e99b8a211