[INFO] fetching crate riichi-elements 0.1.0... [INFO] checking riichi-elements-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate riichi-elements 0.1.0 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate riichi-elements 0.1.0 [INFO] finished tweaking crates.io crate riichi-elements 0.1.0 [INFO] tweaked toml for crates.io crate riichi-elements 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate riichi-elements 0.1.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 24 packages to latest compatible versions [INFO] [stderr] Adding bitfield-struct v0.1.8 (available: v0.12.1) [INFO] [stderr] Adding derive_more v0.99.20 (available: v2.0.1) [INFO] [stderr] Adding itertools v0.10.5 (available: v0.14.0) [INFO] [stderr] Adding strum v0.24.1 (available: v0.27.2) [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-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] 65d017576448f55372fd987b64206b15bcce2ae6a688c95a39f1104c1db0a86d [INFO] running `Command { std: "docker" "start" "-a" "65d017576448f55372fd987b64206b15bcce2ae6a688c95a39f1104c1db0a86d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "65d017576448f55372fd987b64206b15bcce2ae6a688c95a39f1104c1db0a86d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "65d017576448f55372fd987b64206b15bcce2ae6a688c95a39f1104c1db0a86d", kill_on_drop: false }` [INFO] [stdout] 65d017576448f55372fd987b64206b15bcce2ae6a688c95a39f1104c1db0a86d [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] ae74024851ea1cab82e319086400f322cbcefd6fbbc116a33bcaed6bc1835fa4 [INFO] running `Command { std: "docker" "start" "-a" "ae74024851ea1cab82e319086400f322cbcefd6fbbc116a33bcaed6bc1835fa4", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.103 [INFO] [stderr] Compiling quote v1.0.42 [INFO] [stderr] Compiling unicode-ident v1.0.22 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling serde_core v1.0.228 [INFO] [stderr] Compiling rustversion v1.0.22 [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Compiling heck v0.4.1 [INFO] [stderr] Compiling serde_json v1.0.145 [INFO] [stderr] Checking either v1.15.0 [INFO] [stderr] Checking memchr v2.7.6 [INFO] [stderr] Checking ryu v1.0.20 [INFO] [stderr] Checking itoa v1.0.15 [INFO] [stderr] Compiling convert_case v0.4.0 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Compiling syn v2.0.110 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Compiling derive_more v0.99.20 [INFO] [stderr] Compiling strum_macros v0.24.3 [INFO] [stderr] Compiling bitfield-struct v0.1.8 [INFO] [stderr] Checking strum v0.24.1 [INFO] [stderr] Checking assert-json-diff v2.0.2 [INFO] [stderr] Checking riichi-elements v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/meld/packed.rs:116:24 [INFO] [stdout] | [INFO] [stdout] 116 | Meld::try_from(PackedMeld::try_from(packed).ok()?).ok() [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/wall.rs:196:16 [INFO] [stdout] | [INFO] [stdout] 196 | fn display(&self) -> WallDisplay; [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 196 | fn display(&self) -> WallDisplay<'_>; [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/wall.rs:199:16 [INFO] [stdout] | [INFO] [stdout] 199 | fn display(&self) -> WallDisplay { WallDisplay(self) } [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 199 | fn display(&self) -> WallDisplay<'_> { WallDisplay(self) } [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/wall.rs:215:16 [INFO] [stdout] | [INFO] [stdout] 215 | fn display(&self) -> PartialWallDisplay; [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 215 | fn display(&self) -> PartialWallDisplay<'_>; [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/wall.rs:218:16 [INFO] [stdout] | [INFO] [stdout] 218 | fn display(&self) -> PartialWallDisplay { PartialWallDisplay(self) } [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 218 | fn display(&self) -> PartialWallDisplay<'_> { PartialWallDisplay(self) } [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `riichi-elements` (lib) due to 1 previous error; 4 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `riichi-elements` (lib test) due to 1 previous error; 4 warnings emitted [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/meld/packed.rs:116:24 [INFO] [stdout] | [INFO] [stdout] 116 | Meld::try_from(PackedMeld::try_from(packed).ok()?).ok() [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/wall.rs:196:16 [INFO] [stdout] | [INFO] [stdout] 196 | fn display(&self) -> WallDisplay; [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 196 | fn display(&self) -> WallDisplay<'_>; [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/wall.rs:199:16 [INFO] [stdout] | [INFO] [stdout] 199 | fn display(&self) -> WallDisplay { WallDisplay(self) } [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 199 | fn display(&self) -> WallDisplay<'_> { WallDisplay(self) } [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/wall.rs:215:16 [INFO] [stdout] | [INFO] [stdout] 215 | fn display(&self) -> PartialWallDisplay; [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 215 | fn display(&self) -> PartialWallDisplay<'_>; [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/wall.rs:218:16 [INFO] [stdout] | [INFO] [stdout] 218 | fn display(&self) -> PartialWallDisplay { PartialWallDisplay(self) } [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 218 | fn display(&self) -> PartialWallDisplay<'_> { PartialWallDisplay(self) } [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "ae74024851ea1cab82e319086400f322cbcefd6fbbc116a33bcaed6bc1835fa4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ae74024851ea1cab82e319086400f322cbcefd6fbbc116a33bcaed6bc1835fa4", kill_on_drop: false }` [INFO] [stdout] ae74024851ea1cab82e319086400f322cbcefd6fbbc116a33bcaed6bc1835fa4