[INFO] fetching crate simon 0.4.0... [INFO] checking simon-0.4.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate simon 0.4.0 into /workspace/builds/worker-0-tc2/source [INFO] started tweaking crates.io crate simon 0.4.0 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate simon 0.4.0 [INFO] tweaked toml for crates.io crate simon 0.4.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate simon 0.4.0 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 simon 0.4.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b593cd616b85edde079c82c5f19910a776e7d81b32a111ae205eb52101d54284 [INFO] running `Command { std: "docker" "start" "-a" "b593cd616b85edde079c82c5f19910a776e7d81b32a111ae205eb52101d54284", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b593cd616b85edde079c82c5f19910a776e7d81b32a111ae205eb52101d54284", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b593cd616b85edde079c82c5f19910a776e7d81b32a111ae205eb52101d54284", kill_on_drop: false }` [INFO] [stdout] b593cd616b85edde079c82c5f19910a776e7d81b32a111ae205eb52101d54284 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 01263dedb96c13a7274f5a5fd6b1959dea59fcfaca3954cb4ca69e146b40fb65 [INFO] running `Command { std: "docker" "start" "-a" "01263dedb96c13a7274f5a5fd6b1959dea59fcfaca3954cb4ca69e146b40fb65", kill_on_drop: false }` [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Checking getopts v0.2.18 [INFO] [stderr] Checking simon v0.4.0 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:256:72 [INFO] [stdout] | [INFO] [stdout] 256 | fn get(self, matches: &Matches) -> Result { [INFO] [stdout] | ________________________________________________________________________^ [INFO] [stdout] 257 | | Ok(matches.opt_present(self.common.key_to_search_in_matches())) [INFO] [stdout] 258 | | } [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 [INFO] [stdout] --> src/lib.rs:257:9 [INFO] [stdout] | [INFO] [stdout] 257 | Ok(matches.opt_present(self.common.key_to_search_in_matches())) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Never> [INFO] [stdout] --> src/lib.rs:289:72 [INFO] [stdout] | [INFO] [stdout] 289 | fn get(self, matches: &Matches) -> Result { [INFO] [stdout] | ________________________________________________________________________^ [INFO] [stdout] 290 | | Ok(matches.opt_str(self.common.key_to_search_in_matches())) [INFO] [stdout] 291 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Never> [INFO] [stdout] --> src/lib.rs:290:9 [INFO] [stdout] | [INFO] [stdout] 290 | Ok(matches.opt_str(self.common.key_to_search_in_matches())) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Never> [INFO] [stdout] --> src/lib.rs:303:72 [INFO] [stdout] | [INFO] [stdout] 303 | fn get(self, matches: &Matches) -> Result { [INFO] [stdout] | ________________________________________________________________________^ [INFO] [stdout] 304 | | Ok(matches.free.clone()) [INFO] [stdout] 305 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Never> [INFO] [stdout] --> src/lib.rs:304:9 [INFO] [stdout] | [INFO] [stdout] 304 | Ok(matches.free.clone()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:332:29 [INFO] [stdout] | [INFO] [stdout] 332 | if Never::result_ok(self.help_flag.get(matches)) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `simon` (lib) due to 7 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 [INFO] [stdout] --> src/lib.rs:256:72 [INFO] [stdout] | [INFO] [stdout] 256 | fn get(self, matches: &Matches) -> Result { [INFO] [stdout] | ________________________________________________________________________^ [INFO] [stdout] 257 | | Ok(matches.opt_present(self.common.key_to_search_in_matches())) [INFO] [stdout] 258 | | } [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 [INFO] [stdout] --> src/lib.rs:257:9 [INFO] [stdout] | [INFO] [stdout] 257 | Ok(matches.opt_present(self.common.key_to_search_in_matches())) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Never> [INFO] [stdout] --> src/lib.rs:289:72 [INFO] [stdout] | [INFO] [stdout] 289 | fn get(self, matches: &Matches) -> Result { [INFO] [stdout] | ________________________________________________________________________^ [INFO] [stdout] 290 | | Ok(matches.opt_str(self.common.key_to_search_in_matches())) [INFO] [stdout] 291 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Never> [INFO] [stdout] --> src/lib.rs:290:9 [INFO] [stdout] | [INFO] [stdout] 290 | Ok(matches.opt_str(self.common.key_to_search_in_matches())) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Never> [INFO] [stdout] --> src/lib.rs:303:72 [INFO] [stdout] | [INFO] [stdout] 303 | fn get(self, matches: &Matches) -> Result { [INFO] [stdout] | ________________________________________________________________________^ [INFO] [stdout] 304 | | Ok(matches.free.clone()) [INFO] [stdout] 305 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Never> [INFO] [stdout] --> src/lib.rs:304:9 [INFO] [stdout] | [INFO] [stdout] 304 | Ok(matches.free.clone()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:332:29 [INFO] [stdout] | [INFO] [stdout] 332 | if Never::result_ok(self.help_flag.get(matches)) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `simon` (lib test) due to 7 previous errors [INFO] running `Command { std: "docker" "inspect" "01263dedb96c13a7274f5a5fd6b1959dea59fcfaca3954cb4ca69e146b40fb65", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "01263dedb96c13a7274f5a5fd6b1959dea59fcfaca3954cb4ca69e146b40fb65", kill_on_drop: false }` [INFO] [stdout] 01263dedb96c13a7274f5a5fd6b1959dea59fcfaca3954cb4ca69e146b40fb65