[INFO] fetching crate lain_derive 0.5.5... [INFO] checking lain_derive-0.5.5 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170 [INFO] extracting crate lain_derive 0.5.5 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate lain_derive 0.5.5 [INFO] finished tweaking crates.io crate lain_derive 0.5.5 [INFO] tweaked toml for crates.io crate lain_derive 0.5.5 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate lain_derive 0.5.5 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 6 packages to latest compatible versions [INFO] [stderr] Adding proc-macro2 v0.4.30 (available: v1.0.95) [INFO] [stderr] Adding quote v0.6.13 (available: v1.0.40) [INFO] [stderr] Adding syn v0.15.44 (available: v2.0.104) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2f3f33a711c068b917b862d675955322739e53c28d8f4aedea8d17abe2abf495 [INFO] running `Command { std: "docker" "start" "-a" "2f3f33a711c068b917b862d675955322739e53c28d8f4aedea8d17abe2abf495", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2f3f33a711c068b917b862d675955322739e53c28d8f4aedea8d17abe2abf495", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2f3f33a711c068b917b862d675955322739e53c28d8f4aedea8d17abe2abf495", kill_on_drop: false }` [INFO] [stdout] 2f3f33a711c068b917b862d675955322739e53c28d8f4aedea8d17abe2abf495 [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" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bb04a8b98dbd5bc87889eb2a00c8f11f08a8a5354aa500188b4cdd39f22e1fca [INFO] running `Command { std: "docker" "start" "-a" "bb04a8b98dbd5bc87889eb2a00c8f11f08a8a5354aa500188b4cdd39f22e1fca", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Checking unicode-xid v0.1.0 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking log v0.4.27 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Checking quote v0.6.13 [INFO] [stderr] Checking lain_derive v0.5.5 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `generics` and `original` are never read [INFO] [stdout] --> src/internals/ast.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 8 | pub struct Container<'a> { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 16 | pub generics: &'a syn::Generics, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 17 | /// Original input. [INFO] [stdout] 18 | pub original: &'a syn::DeriveInput, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/internals/attr.rs:127:22 [INFO] [stdout] | [INFO] [stdout] 127 | pub fn lain_path(&self) -> Cow { [INFO] [stdout] | ^^^^^ -------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 127 | pub fn lain_path(&self) -> Cow<'_, syn::Path> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `generics` and `original` are never read [INFO] [stdout] --> src/internals/ast.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 8 | pub struct Container<'a> { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 16 | pub generics: &'a syn::Generics, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 17 | /// Original input. [INFO] [stdout] 18 | pub original: &'a syn::DeriveInput, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/internals/attr.rs:127:22 [INFO] [stdout] | [INFO] [stdout] 127 | pub fn lain_path(&self) -> Cow { [INFO] [stdout] | ^^^^^ -------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 127 | pub fn lain_path(&self) -> Cow<'_, syn::Path> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.61s [INFO] running `Command { std: "docker" "inspect" "bb04a8b98dbd5bc87889eb2a00c8f11f08a8a5354aa500188b4cdd39f22e1fca", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bb04a8b98dbd5bc87889eb2a00c8f11f08a8a5354aa500188b4cdd39f22e1fca", kill_on_drop: false }` [INFO] [stdout] bb04a8b98dbd5bc87889eb2a00c8f11f08a8a5354aa500188b4cdd39f22e1fca