[INFO] cloning repository https://github.com/eginez/rustbitstring
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eginez/rustbitstring" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feginez%2Frustbitstring", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feginez%2Frustbitstring'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 608b1116d4f2ab75e521dd485d8a075009ef4a9a
[INFO] checking eginez/rustbitstring against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feginez%2Frustbitstring" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/eginez/rustbitstring
[INFO] finished tweaking git repo https://github.com/eginez/rustbitstring
[INFO] tweaked toml for git repo https://github.com/eginez/rustbitstring written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/eginez/rustbitstring on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/eginez/rustbitstring already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 041eabf04c4a1ce25164a9c6b35171a690b49b8c19b5340825fe42bc591b5701
[INFO] running `Command { std: "docker" "start" "-a" "041eabf04c4a1ce25164a9c6b35171a690b49b8c19b5340825fe42bc591b5701", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "041eabf04c4a1ce25164a9c6b35171a690b49b8c19b5340825fe42bc591b5701", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "041eabf04c4a1ce25164a9c6b35171a690b49b8c19b5340825fe42bc591b5701", kill_on_drop: false }`
[INFO] [stdout] 041eabf04c4a1ce25164a9c6b35171a690b49b8c19b5340825fe42bc591b5701
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05bbf75256d3ae4352bb965ed6ee7b3bcfa4a7527688e9d701b5528f4046f656
[INFO] running `Command { std: "docker" "start" "-a" "05bbf75256d3ae4352bb965ed6ee7b3bcfa4a7527688e9d701b5528f4046f656", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.12.15
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]    Compiling toml_datetime v0.6.6
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling indexmap v2.2.6
[INFO] [stderr]    Compiling regex-syntax v0.8.4
[INFO] [stderr]    Compiling indoc v2.0.5
[INFO] [stderr]    Compiling syn v2.0.71
[INFO] [stderr]    Compiling rstest_macros v0.21.0
[INFO] [stderr]    Compiling relative-path v1.9.3
[INFO] [stderr]     Checking unindent v0.2.3
[INFO] [stderr]     Checking futures-timer v3.0.3
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling pyo3-build-config v0.22.2
[INFO] [stderr]    Compiling pyo3-ffi v0.22.2
[INFO] [stderr]    Compiling pyo3-macros-backend v0.22.2
[INFO] [stderr]    Compiling pyo3 v0.22.2
[INFO] [stderr]    Compiling toml_edit v0.21.1
[INFO] [stderr]    Compiling regex-automata v0.4.7
[INFO] [stderr]    Compiling proc-macro-crate v3.1.0
[INFO] [stderr]    Compiling regex v1.10.5
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]    Compiling pyo3-macros v0.22.2
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking rstest v0.21.0
[INFO] [stderr]     Checking packed_bitstring v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<Option<(usize, u8)>, Infallible>
[INFO] [stdout]   --> src/lib.rs:47:52
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn _calculate_byte_bit(&self, index: usize) -> Option<(usize, u8)> {
[INFO] [stdout]    |                                                    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Bitstring, Infallible>
[INFO] [stdout]   --> src/lib.rs:54:30
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn reverse(&self) -> Bitstring {
[INFO] [stdout]    |                              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u8, Infallible>
[INFO] [stdout]   --> src/lib.rs:67:44
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn get_bit(&self, index: usize) -> u8 {
[INFO] [stdout]    |                                            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `packed_bitstring` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<Option<(usize, u8)>, Infallible>
[INFO] [stdout]   --> src/lib.rs:47:52
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn _calculate_byte_bit(&self, index: usize) -> Option<(usize, u8)> {
[INFO] [stdout]    |                                                    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Bitstring, Infallible>
[INFO] [stdout]   --> src/lib.rs:54:30
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn reverse(&self) -> Bitstring {
[INFO] [stdout]    |                              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u8, Infallible>
[INFO] [stdout]   --> src/lib.rs:67:44
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn get_bit(&self, index: usize) -> u8 {
[INFO] [stdout]    |                                            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `packed_bitstring` (lib test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "05bbf75256d3ae4352bb965ed6ee7b3bcfa4a7527688e9d701b5528f4046f656", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05bbf75256d3ae4352bb965ed6ee7b3bcfa4a7527688e9d701b5528f4046f656", kill_on_drop: false }`
[INFO] [stdout] 05bbf75256d3ae4352bb965ed6ee7b3bcfa4a7527688e9d701b5528f4046f656
