[INFO] fetching crate nitroglycerin_derive 0.4.2... [INFO] checking nitroglycerin_derive-0.4.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate nitroglycerin_derive 0.4.2 into /workspace/builds/worker-2-tc2/source [INFO] started tweaking crates.io crate nitroglycerin_derive 0.4.2 [INFO] finished tweaking crates.io crate nitroglycerin_derive 0.4.2 [INFO] tweaked toml for crates.io crate nitroglycerin_derive 0.4.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate nitroglycerin_derive 0.4.2 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] 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] Locking 4 packages to latest compatible versions [INFO] [stderr] Adding syn v1.0.109 (available: v2.0.110) [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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] e5fb313c0a68a646985c02d5bc27621828b919f9ff2bef58487987e2b3719d97 [INFO] running `Command { std: "docker" "start" "-a" "e5fb313c0a68a646985c02d5bc27621828b919f9ff2bef58487987e2b3719d97", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e5fb313c0a68a646985c02d5bc27621828b919f9ff2bef58487987e2b3719d97", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e5fb313c0a68a646985c02d5bc27621828b919f9ff2bef58487987e2b3719d97", kill_on_drop: false }` [INFO] [stdout] e5fb313c0a68a646985c02d5bc27621828b919f9ff2bef58487987e2b3719d97 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] e061bae04f20e23382ea7d78a5745f6114ee6d00e530c9627f53562b70e3cfd7 [INFO] running `Command { std: "docker" "start" "-a" "e061bae04f20e23382ea7d78a5745f6114ee6d00e530c9627f53562b70e3cfd7", kill_on_drop: false }` [INFO] [stderr] Checking syn v1.0.109 [INFO] [stderr] Checking nitroglycerin_derive v0.4.2 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/attr/field.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | Builder::default().parse_attrs(attrs)?.try_into().map_err(|err| syn::Error::new(Span::call_site(), err)) [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/attr/field.rs:50:62 [INFO] [stdout] | [INFO] [stdout] 50 | fn try_from(value: Builder) -> Result { [INFO] [stdout] | ______________________________________________________________^ [INFO] [stdout] 51 | | let Builder { rename, partition_key, sort_key, with } = value; [INFO] [stdout] 52 | | Ok(Self { rename, partition_key, sort_key, with }) [INFO] [stdout] 53 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/attr/field.rs:52:9 [INFO] [stdout] | [INFO] [stdout] 52 | Ok(Self { rename, partition_key, sort_key, with }) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/attr/field.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | Builder::default().parse_attrs(attrs)?.try_into().map_err(|err| syn::Error::new(Span::call_site(), err)) [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/attr/field.rs:50:62 [INFO] [stdout] | [INFO] [stdout] 50 | fn try_from(value: Builder) -> Result { [INFO] [stdout] | ______________________________________________________________^ [INFO] [stdout] 51 | | let Builder { rename, partition_key, sort_key, with } = value; [INFO] [stdout] 52 | | Ok(Self { rename, partition_key, sort_key, with }) [INFO] [stdout] 53 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/attr/field.rs:52:9 [INFO] [stdout] | [INFO] [stdout] 52 | Ok(Self { rename, partition_key, sort_key, with }) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `nitroglycerin_derive` (lib test) due to 3 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `nitroglycerin_derive` (lib) due to 3 previous errors [INFO] running `Command { std: "docker" "inspect" "e061bae04f20e23382ea7d78a5745f6114ee6d00e530c9627f53562b70e3cfd7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e061bae04f20e23382ea7d78a5745f6114ee6d00e530c9627f53562b70e3cfd7", kill_on_drop: false }` [INFO] [stdout] e061bae04f20e23382ea7d78a5745f6114ee6d00e530c9627f53562b70e3cfd7