[INFO] fetching crate pyglobcmp 0.3.1...
[INFO] checking pyglobcmp-0.3.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate pyglobcmp 0.3.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate pyglobcmp 0.3.1
[INFO] finished tweaking crates.io crate pyglobcmp 0.3.1
[INFO] tweaked toml for crates.io crate pyglobcmp 0.3.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pyglobcmp 0.3.1 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 pyglobcmp 0.3.1 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] 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] e4ea911254d3e72ca147d4d42a0763a03152364a4ac3e9ee67ec039257fca9ad
[INFO] running `Command { std: "docker" "start" "-a" "e4ea911254d3e72ca147d4d42a0763a03152364a4ac3e9ee67ec039257fca9ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4ea911254d3e72ca147d4d42a0763a03152364a4ac3e9ee67ec039257fca9ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4ea911254d3e72ca147d4d42a0763a03152364a4ac3e9ee67ec039257fca9ad", kill_on_drop: false }`
[INFO] [stdout] e4ea911254d3e72ca147d4d42a0763a03152364a4ac3e9ee67ec039257fca9ad
[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] c068b854c778ad0078ad053c1b8e0449df6a4010147cbb7c7f18654345a15377
[INFO] running `Command { std: "docker" "start" "-a" "c068b854c778ad0078ad053c1b8e0449df6a4010147cbb7c7f18654345a15377", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.13.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]     Checking multipeek v0.1.2
[INFO] [stderr]    Compiling indoc v2.0.6
[INFO] [stderr]     Checking unindent v0.2.4
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]     Checking globcmp-lib v0.3.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling pyo3-build-config v0.26.0
[INFO] [stderr]    Compiling pyo3-ffi v0.26.0
[INFO] [stderr]    Compiling pyo3-macros-backend v0.26.0
[INFO] [stderr]    Compiling pyo3 v0.26.0
[INFO] [stderr]    Compiling pyo3-macros v0.26.0
[INFO] [stderr]     Checking pyglobcmp v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]  --> src/lib.rs:6:47
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn is_more_specific_than(a: &str, b: &str) -> bool {
[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<Option<usize>, Infallible>
[INFO] [stdout]   --> src/lib.rs:16:55
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn count_matching_chars(pattern: &str, path: &str) -> Option<usize> {
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]  --> src/lib.rs:6:47
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn is_more_specific_than(a: &str, b: &str) -> bool {
[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<Option<usize>, Infallible>
[INFO] [stdout]   --> src/lib.rs:16:55
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn count_matching_chars(pattern: &str, path: &str) -> Option<usize> {
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pyglobcmp` (lib test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `pyglobcmp` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "c068b854c778ad0078ad053c1b8e0449df6a4010147cbb7c7f18654345a15377", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c068b854c778ad0078ad053c1b8e0449df6a4010147cbb7c7f18654345a15377", kill_on_drop: false }`
[INFO] [stdout] c068b854c778ad0078ad053c1b8e0449df6a4010147cbb7c7f18654345a15377