[INFO] fetching crate pyo3-bytes 0.5.0...
[INFO] checking pyo3-bytes-0.5.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate pyo3-bytes 0.5.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate pyo3-bytes 0.5.0
[INFO] finished tweaking crates.io crate pyo3-bytes 0.5.0
[INFO] tweaked toml for crates.io crate pyo3-bytes 0.5.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pyo3-bytes 0.5.0 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 crates.io crate pyo3-bytes 0.5.0 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 1ce447c20292a6608caa0dcb42157ae1a41d52c699382e6ce9937bdd0d9dbd50
[INFO] running `Command { std: "docker" "start" "-a" "1ce447c20292a6608caa0dcb42157ae1a41d52c699382e6ce9937bdd0d9dbd50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ce447c20292a6608caa0dcb42157ae1a41d52c699382e6ce9937bdd0d9dbd50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ce447c20292a6608caa0dcb42157ae1a41d52c699382e6ce9937bdd0d9dbd50", kill_on_drop: false }`
[INFO] [stdout] 1ce447c20292a6608caa0dcb42157ae1a41d52c699382e6ce9937bdd0d9dbd50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 4b38bececd987b3c918b831ab19700cc20f01891fef3a288752c5517f1366dcc
[INFO] running `Command { std: "docker" "start" "-a" "4b38bececd987b3c918b831ab19700cc20f01891fef3a288752c5517f1366dcc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling libc v0.2.161
[INFO] [stderr]    Compiling pyo3-build-config v0.27.1
[INFO] [stderr]     Checking unindent v0.2.3
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.86
[INFO] [stderr]    Compiling pyo3-macros-backend v0.27.1
[INFO] [stderr]    Compiling pyo3-ffi v0.27.1
[INFO] [stderr]    Compiling pyo3 v0.27.1
[INFO] [stderr]    Compiling pyo3-macros v0.27.1
[INFO] [stderr]     Checking pyo3-bytes v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<bytes::PyBytes, Infallible>
[INFO] [stdout]    --> src/bytes.rs:263:48
[INFO] [stdout]     |
[INFO] [stdout] 263 |     fn removeprefix(&self, prefix: PyBytes) -> 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<bytes::PyBytes, Infallible>
[INFO] [stdout]    --> src/bytes.rs:274:48
[INFO] [stdout]     |
[INFO] [stdout] 274 |     fn removesuffix(&self, suffix: PyBytes) -> PyBytes {
[INFO] [stdout]     |                                                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/bytes.rs:286:26
[INFO] [stdout]     |
[INFO] [stdout] 286 |     fn isalnum(&self) -> bool {
[INFO] [stdout]     |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/bytes.rs:302:26
[INFO] [stdout]     |
[INFO] [stdout] 302 |     fn isalpha(&self) -> bool {
[INFO] [stdout]     |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/bytes.rs:317:26
[INFO] [stdout]     |
[INFO] [stdout] 317 |     fn isascii(&self) -> bool {
[INFO] [stdout]     |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/bytes.rs:329:26
[INFO] [stdout]     |
[INFO] [stdout] 329 |     fn isdigit(&self) -> bool {
[INFO] [stdout]     |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/bytes.rs:344:26
[INFO] [stdout]     |
[INFO] [stdout] 344 |     fn islower(&self) -> bool {
[INFO] [stdout]     |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/bytes.rs:361:26
[INFO] [stdout]     |
[INFO] [stdout] 361 |     fn isspace(&self) -> bool {
[INFO] [stdout]     |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/bytes.rs:377:26
[INFO] [stdout]     |
[INFO] [stdout] 377 |     fn isupper(&self) -> bool {
[INFO] [stdout]     |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bytes::PyBytes, Infallible>
[INFO] [stdout]    --> src/bytes.rs:393:24
[INFO] [stdout]     |
[INFO] [stdout] 393 |     fn lower(&self) -> PyBytes {
[INFO] [stdout]     |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bytes::PyBytes, Infallible>
[INFO] [stdout]    --> src/bytes.rs:399:24
[INFO] [stdout]     |
[INFO] [stdout] 399 |     fn upper(&self) -> PyBytes {
[INFO] [stdout]     |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<pyo3::Bound<'_, pyo3::types::PyBytes>, Infallible>
[INFO] [stdout]    --> src/bytes.rs:404:53
[INFO] [stdout]     |
[INFO] [stdout] 404 |     fn to_bytes<'py>(&'py self, py: Python<'py>) -> Bound<'py, pyo3::types::PyBytes> {
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pyo3-bytes` (lib) due to 12 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<bytes::PyBytes, Infallible>
[INFO] [stdout]    --> src/bytes.rs:263:48
[INFO] [stdout]     |
[INFO] [stdout] 263 |     fn removeprefix(&self, prefix: PyBytes) -> 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<bytes::PyBytes, Infallible>
[INFO] [stdout]    --> src/bytes.rs:274:48
[INFO] [stdout]     |
[INFO] [stdout] 274 |     fn removesuffix(&self, suffix: PyBytes) -> PyBytes {
[INFO] [stdout]     |                                                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/bytes.rs:286:26
[INFO] [stdout]     |
[INFO] [stdout] 286 |     fn isalnum(&self) -> bool {
[INFO] [stdout]     |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/bytes.rs:302:26
[INFO] [stdout]     |
[INFO] [stdout] 302 |     fn isalpha(&self) -> bool {
[INFO] [stdout]     |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/bytes.rs:317:26
[INFO] [stdout]     |
[INFO] [stdout] 317 |     fn isascii(&self) -> bool {
[INFO] [stdout]     |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/bytes.rs:329:26
[INFO] [stdout]     |
[INFO] [stdout] 329 |     fn isdigit(&self) -> bool {
[INFO] [stdout]     |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/bytes.rs:344:26
[INFO] [stdout]     |
[INFO] [stdout] 344 |     fn islower(&self) -> bool {
[INFO] [stdout]     |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/bytes.rs:361:26
[INFO] [stdout]     |
[INFO] [stdout] 361 |     fn isspace(&self) -> bool {
[INFO] [stdout]     |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/bytes.rs:377:26
[INFO] [stdout]     |
[INFO] [stdout] 377 |     fn isupper(&self) -> bool {
[INFO] [stdout]     |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bytes::PyBytes, Infallible>
[INFO] [stdout]    --> src/bytes.rs:393:24
[INFO] [stdout]     |
[INFO] [stdout] 393 |     fn lower(&self) -> PyBytes {
[INFO] [stdout]     |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bytes::PyBytes, Infallible>
[INFO] [stdout]    --> src/bytes.rs:399:24
[INFO] [stdout]     |
[INFO] [stdout] 399 |     fn upper(&self) -> PyBytes {
[INFO] [stdout]     |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<pyo3::Bound<'_, pyo3::types::PyBytes>, Infallible>
[INFO] [stdout]    --> src/bytes.rs:404:53
[INFO] [stdout]     |
[INFO] [stdout] 404 |     fn to_bytes<'py>(&'py self, py: Python<'py>) -> Bound<'py, pyo3::types::PyBytes> {
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pyo3-bytes` (lib test) due to 12 previous errors
[INFO] running `Command { std: "docker" "inspect" "4b38bececd987b3c918b831ab19700cc20f01891fef3a288752c5517f1366dcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b38bececd987b3c918b831ab19700cc20f01891fef3a288752c5517f1366dcc", kill_on_drop: false }`
[INFO] [stdout] 4b38bececd987b3c918b831ab19700cc20f01891fef3a288752c5517f1366dcc