[INFO] fetching crate wizify_derive 0.0.2... [INFO] checking wizify_derive-0.0.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate wizify_derive 0.0.2 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate wizify_derive 0.0.2 [INFO] finished tweaking crates.io crate wizify_derive 0.0.2 [INFO] tweaked toml for crates.io crate wizify_derive 0.0.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate wizify_derive 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 wizify_derive 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] 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] b1e89113ca583b03193e6e6776c5304563e67f3c413281f745debdb50196691d [INFO] running `Command { std: "docker" "start" "-a" "b1e89113ca583b03193e6e6776c5304563e67f3c413281f745debdb50196691d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b1e89113ca583b03193e6e6776c5304563e67f3c413281f745debdb50196691d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b1e89113ca583b03193e6e6776c5304563e67f3c413281f745debdb50196691d", kill_on_drop: false }` [INFO] [stdout] b1e89113ca583b03193e6e6776c5304563e67f3c413281f745debdb50196691d [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] aadade86bf344eb0588466a4db9f8be68d0f0b7c26cb984897515d7035dd4a40 [INFO] running `Command { std: "docker" "start" "-a" "aadade86bf344eb0588466a4db9f8be68d0f0b7c26cb984897515d7035dd4a40", kill_on_drop: false }` [INFO] [stderr] Checking proc-macro2 v1.0.95 [INFO] [stderr] Compiling proc-macro-error-attr2 v2.0.0 [INFO] [stderr] Checking quote v1.0.40 [INFO] [stderr] Checking syn v2.0.101 [INFO] [stderr] Checking proc-macro-error2 v2.0.1 [INFO] [stderr] Checking wizify_derive v0.0.2 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:21:17 [INFO] [stdout] | [INFO] [stdout] 21 | let attrs = TypeAttributes::parse(&ast.attrs) [INFO] [stdout] | _________________^ [INFO] [stdout] 22 | | .map_err(error::abort) [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:25:23 [INFO] [stdout] | [INFO] [stdout] 25 | let field_inits = collect_info(ast, &attrs) [INFO] [stdout] | _______________________^ [INFO] [stdout] 26 | | .map_err(error::abort) [INFO] [stdout] | |______________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:21:17 [INFO] [stdout] | [INFO] [stdout] 21 | let attrs = TypeAttributes::parse(&ast.attrs) [INFO] [stdout] | _________________^ [INFO] [stdout] 22 | | .map_err(error::abort) [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:25:23 [INFO] [stdout] | [INFO] [stdout] 25 | let field_inits = collect_info(ast, &attrs) [INFO] [stdout] | _______________________^ [INFO] [stdout] 26 | | .map_err(error::abort) [INFO] [stdout] | |______________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `wizify_derive` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `wizify_derive` (lib test) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "aadade86bf344eb0588466a4db9f8be68d0f0b7c26cb984897515d7035dd4a40", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "aadade86bf344eb0588466a4db9f8be68d0f0b7c26cb984897515d7035dd4a40", kill_on_drop: false }` [INFO] [stdout] aadade86bf344eb0588466a4db9f8be68d0f0b7c26cb984897515d7035dd4a40