[INFO] fetching crate lstring 2.0.2... [INFO] checking lstring-2.0.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate lstring 2.0.2 into /workspace/builds/worker-5-tc2/source [INFO] started tweaking crates.io crate lstring 2.0.2 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate lstring 2.0.2 [INFO] tweaked toml for crates.io crate lstring 2.0.2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate lstring 2.0.2 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 lstring 2.0.2 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-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] 34fa232a76b4890bb031bc7af2e1e5d31a9917aa1adc91dd9cd90c671bc79486 [INFO] running `Command { std: "docker" "start" "-a" "34fa232a76b4890bb031bc7af2e1e5d31a9917aa1adc91dd9cd90c671bc79486", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "34fa232a76b4890bb031bc7af2e1e5d31a9917aa1adc91dd9cd90c671bc79486", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "34fa232a76b4890bb031bc7af2e1e5d31a9917aa1adc91dd9cd90c671bc79486", kill_on_drop: false }` [INFO] [stdout] 34fa232a76b4890bb031bc7af2e1e5d31a9917aa1adc91dd9cd90c671bc79486 [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] f889835de01f3bae485e61d75e26a5fb4a9236c2ba944560133bc44dae805012 [INFO] running `Command { std: "docker" "start" "-a" "f889835de01f3bae485e61d75e26a5fb4a9236c2ba944560133bc44dae805012", kill_on_drop: false }` [INFO] [stderr] Compiling zerocopy v0.8.25 [INFO] [stderr] Compiling rustix v1.0.7 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling cc v1.2.23 [INFO] [stderr] Checking half v2.6.0 [INFO] [stderr] Compiling syn v2.0.101 [INFO] [stderr] Checking getrandom v0.2.16 [INFO] [stderr] Checking getrandom v0.3.3 [INFO] [stderr] Checking wait-timeout v0.2.1 [INFO] [stderr] Checking clap_builder v4.5.38 [INFO] [stderr] Checking regex-automata v0.4.9 [INFO] [stderr] Checking is-terminal v0.4.16 [INFO] [stderr] Checking lstring v2.0.2 (/opt/rustwide/workdir) [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_xorshift v0.3.0 [INFO] [stderr] Checking ciborium-ll v0.2.2 [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/string.rs:369:53 [INFO] [stdout] | [INFO] [stdout] 369 | fn from_str(s: &str) -> Result { [INFO] [stdout] | _____________________________________________________^ [INFO] [stdout] 370 | | Ok(Self::from_ref(s)) [INFO] [stdout] 371 | | } [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, Infallible> [INFO] [stdout] --> src/string.rs:370:9 [INFO] [stdout] | [INFO] [stdout] 370 | Ok(Self::from_ref(s)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/string_cow.rs:398:53 [INFO] [stdout] | [INFO] [stdout] 398 | fn from_str(s: &str) -> Result { [INFO] [stdout] | _____________________________________________________^ [INFO] [stdout] 399 | | Ok(Self::from_string(s.into())) [INFO] [stdout] 400 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/string_cow.rs:399:9 [INFO] [stdout] | [INFO] [stdout] 399 | Ok(Self::from_string(s.into())) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `lstring` (lib) due to 4 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "f889835de01f3bae485e61d75e26a5fb4a9236c2ba944560133bc44dae805012", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f889835de01f3bae485e61d75e26a5fb4a9236c2ba944560133bc44dae805012", kill_on_drop: false }` [INFO] [stdout] f889835de01f3bae485e61d75e26a5fb4a9236c2ba944560133bc44dae805012