[INFO] fetching crate rod_derive 0.2.3... [INFO] checking rod_derive-0.2.3 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate rod_derive 0.2.3 into /workspace/builds/worker-1-tc2/source [INFO] started tweaking crates.io crate rod_derive 0.2.3 [INFO] finished tweaking crates.io crate rod_derive 0.2.3 [INFO] tweaked toml for crates.io crate rod_derive 0.2.3 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate rod_derive 0.2.3 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 rod_derive 0.2.3 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 3799db78a38f09c9e1f0d8cd4af53c65473fbaa6a5c10c442835fef1c8d5e182 [INFO] running `Command { std: "docker" "start" "-a" "3799db78a38f09c9e1f0d8cd4af53c65473fbaa6a5c10c442835fef1c8d5e182", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3799db78a38f09c9e1f0d8cd4af53c65473fbaa6a5c10c442835fef1c8d5e182", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3799db78a38f09c9e1f0d8cd4af53c65473fbaa6a5c10c442835fef1c8d5e182", kill_on_drop: false }` [INFO] [stdout] 3799db78a38f09c9e1f0d8cd4af53c65473fbaa6a5c10c442835fef1c8d5e182 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 1937d29d398467b0b7acddc49eb06c174ff2b282bae710154ca3533ed13dfee9 [INFO] running `Command { std: "docker" "start" "-a" "1937d29d398467b0b7acddc49eb06c174ff2b282bae710154ca3533ed13dfee9", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.95 [INFO] [stderr] Compiling version_check v0.9.5 [INFO] [stderr] Compiling unicode-ident v1.0.18 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking quote v1.0.40 [INFO] [stderr] Checking syn v2.0.101 [INFO] [stderr] Checking rod_derive v0.2.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/types/string.rs:292:13 [INFO] [stdout] | [INFO] [stdout] 292 | let mut format = None; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/types/string.rs:292:13 [INFO] [stdout] | [INFO] [stdout] 292 | let mut format = None; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `format` is never read [INFO] [stdout] --> src/types/string.rs:110:5 [INFO] [stdout] | [INFO] [stdout] 108 | pub struct RodStringContent { [INFO] [stdout] | ---------------- field in this struct [INFO] [stdout] 109 | length: Option, [INFO] [stdout] 110 | format: Option, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:90:21 [INFO] [stdout] | [INFO] [stdout] 90 | <&syn::Type as TryInto>::try_into(ty).is_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] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:94:31 [INFO] [stdout] | [INFO] [stdout] 94 | let attr_ty = ty.try_into().ok()?; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rod_derive` (lib test) due to 2 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: field `format` is never read [INFO] [stdout] --> src/types/string.rs:110:5 [INFO] [stdout] | [INFO] [stdout] 108 | pub struct RodStringContent { [INFO] [stdout] | ---------------- field in this struct [INFO] [stdout] 109 | length: Option, [INFO] [stdout] 110 | format: Option, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:90:21 [INFO] [stdout] | [INFO] [stdout] 90 | <&syn::Type as TryInto>::try_into(ty).is_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] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:94:31 [INFO] [stdout] | [INFO] [stdout] 94 | let attr_ty = ty.try_into().ok()?; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rod_derive` (lib) due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "1937d29d398467b0b7acddc49eb06c174ff2b282bae710154ca3533ed13dfee9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1937d29d398467b0b7acddc49eb06c174ff2b282bae710154ca3533ed13dfee9", kill_on_drop: false }` [INFO] [stdout] 1937d29d398467b0b7acddc49eb06c174ff2b282bae710154ca3533ed13dfee9