[INFO] cloning repository https://github.com/idkosilov/ropey-py
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/idkosilov/ropey-py" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fidkosilov%2Fropey-py", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fidkosilov%2Fropey-py'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 799a5763111de8ab9d8ab88b46c64fa363678e3f
[INFO] checking idkosilov/ropey-py 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%2Fidkosilov%2Fropey-py" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/idkosilov/ropey-py
[INFO] finished tweaking git repo https://github.com/idkosilov/ropey-py
[INFO] tweaked toml for git repo https://github.com/idkosilov/ropey-py written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/idkosilov/ropey-py 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/idkosilov/ropey-py 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] ec56df7bdb034df4f3f36943a2c7b5f160b636c33e6dc6f68ae0491d640a2085
[INFO] running `Command { std: "docker" "start" "-a" "ec56df7bdb034df4f3f36943a2c7b5f160b636c33e6dc6f68ae0491d640a2085", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec56df7bdb034df4f3f36943a2c7b5f160b636c33e6dc6f68ae0491d640a2085", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec56df7bdb034df4f3f36943a2c7b5f160b636c33e6dc6f68ae0491d640a2085", kill_on_drop: false }`
[INFO] [stdout] ec56df7bdb034df4f3f36943a2c7b5f160b636c33e6dc6f68ae0491d640a2085
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 20eabae64ffab456eb9e5c9fbad7aa832bb9d5bc6aa6a859830e053886df322a
[INFO] running `Command { std: "docker" "start" "-a" "20eabae64ffab456eb9e5c9fbad7aa832bb9d5bc6aa6a859830e053886df322a", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.13.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]     Checking unindent v0.2.4
[INFO] [stderr]     Checking str_indices v0.4.4
[INFO] [stderr]    Compiling indoc v2.0.6
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]     Checking ropey v1.6.1
[INFO] [stderr]    Compiling pyo3-build-config v0.25.1
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling pyo3-ffi v0.25.1
[INFO] [stderr]    Compiling pyo3-macros-backend v0.25.1
[INFO] [stderr]    Compiling pyo3 v0.25.1
[INFO] [stderr]    Compiling pyo3-macros v0.25.1
[INFO] [stderr]     Checking ropey-py v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<pyo3::Bound<'_, PyBytes>, Infallible>
[INFO] [stdout]   --> src/lib.rs:41:50
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn get_bytes<'py>(&self, py: Python<'py>) -> Bound<'py, PyBytes> {
[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<usize, Infallible>
[INFO] [stdout]   --> src/lib.rs:45:28
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn len_chars(&self) -> usize {
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/lib.rs:48:28
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn len_bytes(&self) -> usize {
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/lib.rs:51:28
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn len_lines(&self) -> usize {
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/lib.rs:69:25
[INFO] [stdout]    |
[INFO] [stdout] 69 |     fn as_str(&self) -> String {
[INFO] [stdout]    |                         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ropey-py` (lib) due to 5 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<pyo3::Bound<'_, PyBytes>, Infallible>
[INFO] [stdout]   --> src/lib.rs:41:50
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn get_bytes<'py>(&self, py: Python<'py>) -> Bound<'py, PyBytes> {
[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<usize, Infallible>
[INFO] [stdout]   --> src/lib.rs:45:28
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn len_chars(&self) -> usize {
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/lib.rs:48:28
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn len_bytes(&self) -> usize {
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/lib.rs:51:28
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn len_lines(&self) -> usize {
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/lib.rs:69:25
[INFO] [stdout]    |
[INFO] [stdout] 69 |     fn as_str(&self) -> String {
[INFO] [stdout]    |                         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ropey-py` (lib test) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "20eabae64ffab456eb9e5c9fbad7aa832bb9d5bc6aa6a859830e053886df322a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20eabae64ffab456eb9e5c9fbad7aa832bb9d5bc6aa6a859830e053886df322a", kill_on_drop: false }`
[INFO] [stdout] 20eabae64ffab456eb9e5c9fbad7aa832bb9d5bc6aa6a859830e053886df322a