[INFO] fetching crate life-backend 0.0.2... [INFO] checking life-backend-0.0.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate life-backend 0.0.2 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate life-backend 0.0.2 [INFO] finished tweaking crates.io crate life-backend 0.0.2 [INFO] tweaked toml for crates.io crate life-backend 0.0.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate life-backend 0.0.2 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 life-backend 0.0.2 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] [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] c8275e12c9e7de797f0c172c0d4b801c6783cd3c98ed014021967a655ffaaf44 [INFO] running `Command { std: "docker" "start" "-a" "c8275e12c9e7de797f0c172c0d4b801c6783cd3c98ed014021967a655ffaaf44", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c8275e12c9e7de797f0c172c0d4b801c6783cd3c98ed014021967a655ffaaf44", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c8275e12c9e7de797f0c172c0d4b801c6783cd3c98ed014021967a655ffaaf44", kill_on_drop: false }` [INFO] [stdout] c8275e12c9e7de797f0c172c0d4b801c6783cd3c98ed014021967a655ffaaf44 [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] 15b01bba016d153191163acc0874f01048aa01255e3d5591b37d9d48da05b90b [INFO] running `Command { std: "docker" "start" "-a" "15b01bba016d153191163acc0874f01048aa01255e3d5591b37d9d48da05b90b", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.63 [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Compiling quote v1.0.28 [INFO] [stderr] Compiling unicode-ident v1.0.9 [INFO] [stderr] Compiling io-lifetimes v1.0.11 [INFO] [stderr] Compiling crossbeam-utils v0.8.16 [INFO] [stderr] Compiling memoffset v0.9.0 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling rustix v0.37.20 [INFO] [stderr] Compiling crossbeam-epoch v0.9.15 [INFO] [stderr] Compiling serde v1.0.164 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Checking anstyle v1.0.1 [INFO] [stderr] Compiling rayon-core v1.11.0 [INFO] [stderr] Checking either v1.8.1 [INFO] [stderr] Compiling serde_json v1.0.99 [INFO] [stderr] Checking ryu v1.0.13 [INFO] [stderr] Compiling anyhow v1.0.71 [INFO] [stderr] Checking clap_lex v0.5.0 [INFO] [stderr] Checking itoa v1.0.6 [INFO] [stderr] Checking ciborium-io v0.2.1 [INFO] [stderr] Checking plotters-backend v0.3.5 [INFO] [stderr] Checking ciborium-ll v0.2.1 [INFO] [stderr] Checking regex-syntax v0.7.2 [INFO] [stderr] Checking walkdir v2.3.3 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking crossbeam-channel v0.5.8 [INFO] [stderr] Checking crossbeam-deque v0.8.3 [INFO] [stderr] Checking plotters-svg v0.3.5 [INFO] [stderr] Compiling syn v2.0.22 [INFO] [stderr] Checking regex v1.8.4 [INFO] [stderr] Checking plotters v0.3.5 [INFO] [stderr] Checking num-iter v0.1.43 [INFO] [stderr] Checking life-backend v0.0.2 (/opt/rustwide/workdir) [INFO] [stderr] Checking criterion-plot v0.5.0 [INFO] [stderr] Checking num_cpus v1.15.0 [INFO] [stderr] Checking rayon v1.7.0 [INFO] [stderr] Checking is-terminal v0.4.7 [INFO] [stderr] Checking anstream v0.3.2 [INFO] [stderr] Checking clap_builder v4.3.8 [INFO] [stderr] Compiling serde_derive v1.0.164 [INFO] [stderr] Compiling clap_derive v4.3.2 [INFO] [stderr] Checking clap v4.3.8 [INFO] [stderr] Checking ciborium v0.2.1 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking criterion v0.5.1 [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/position.rs:138:22 [INFO] [stdout] | [INFO] [stdout] 138 | let target = Position::::try_from(base); [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/position.rs:139:17 [INFO] [stdout] | [INFO] [stdout] 139 | assert!(target.is_ok()); [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/position.rs:156:22 [INFO] [stdout] | [INFO] [stdout] 156 | let target = base.try_into::(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/position.rs:157:17 [INFO] [stdout] | [INFO] [stdout] 157 | assert!(target.is_ok()); [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `life-backend` (lib test) due to 4 previous errors [INFO] running `Command { std: "docker" "inspect" "15b01bba016d153191163acc0874f01048aa01255e3d5591b37d9d48da05b90b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "15b01bba016d153191163acc0874f01048aa01255e3d5591b37d9d48da05b90b", kill_on_drop: false }` [INFO] [stdout] 15b01bba016d153191163acc0874f01048aa01255e3d5591b37d9d48da05b90b