[INFO] fetching crate serde-object 0.0.0-alpha.0... [INFO] checking serde-object-0.0.0-alpha.0 against master#5ad98b4026d5172f27615b105658bc8bfd677be8 for pr-129422 [INFO] extracting crate serde-object 0.0.0-alpha.0 into /workspace/builds/worker-1-tc1/source [INFO] validating manifest of crates.io crate serde-object 0.0.0-alpha.0 on toolchain 5ad98b4026d5172f27615b105658bc8bfd677be8 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ad98b4026d5172f27615b105658bc8bfd677be8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate serde-object 0.0.0-alpha.0 [INFO] finished tweaking crates.io crate serde-object 0.0.0-alpha.0 [INFO] tweaked toml for crates.io crate serde-object 0.0.0-alpha.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ad98b4026d5172f27615b105658bc8bfd677be8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 18 packages to latest compatible versions [INFO] [stderr] Adding linkme v0.2.10 (latest: v0.3.28) [INFO] [stderr] Adding linkme-impl v0.2.10 (latest: v0.3.28) [INFO] [stderr] Adding syn v1.0.109 (latest: v2.0.77) [INFO] [stderr] Adding try_match v0.2.3 (latest: v0.4.2) [INFO] [stderr] Adding try_match_inner v0.3.0 (latest: v0.5.2) [INFO] [stderr] Adding wyz v0.2.0 (latest: v0.6.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ad98b4026d5172f27615b105658bc8bfd677be8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded try_match v0.2.3 [INFO] [stderr] Downloaded try_match_inner v0.3.0 [INFO] [stderr] Downloaded linkme v0.2.10 [INFO] [stderr] Downloaded linkme-impl v0.2.10 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+5ad98b4026d5172f27615b105658bc8bfd677be8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 91468612ed5d0034733ebffe6f0ec7e7eeae9f9b088938107231daf47256d04f [INFO] running `Command { std: "docker" "start" "-a" "91468612ed5d0034733ebffe6f0ec7e7eeae9f9b088938107231daf47256d04f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "91468612ed5d0034733ebffe6f0ec7e7eeae9f9b088938107231daf47256d04f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "91468612ed5d0034733ebffe6f0ec7e7eeae9f9b088938107231daf47256d04f", kill_on_drop: false }` [INFO] [stdout] 91468612ed5d0034733ebffe6f0ec7e7eeae9f9b088938107231daf47256d04f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+5ad98b4026d5172f27615b105658bc8bfd677be8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b7a83ba7f5783fbd5b761343bcc17ec462e56337d71dd37dbbdad07748513200 [INFO] running `Command { std: "docker" "start" "-a" "b7a83ba7f5783fbd5b761343bcc17ec462e56337d71dd37dbbdad07748513200", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro-hack v0.5.20+deprecated [INFO] [stderr] Checking wyz v0.2.0 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling try_match_inner v0.3.0 [INFO] [stderr] Checking try_match v0.2.3 [INFO] [stderr] Checking serde-object v0.0.0-alpha.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/lib.rs:665:10 [INFO] [stdout] | [INFO] [stdout] 665 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/lib.rs:665:10 [INFO] [stdout] | [INFO] [stdout] 665 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/assistant.rs:93:31 [INFO] [stdout] | [INFO] [stdout] 93 | .pipe(|a| Any::downcast_ref::(a)) [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 93 | .pipe(|a| ::downcast_ref::(a)) [INFO] [stdout] | ++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/assistant.rs:93:31 [INFO] [stdout] | [INFO] [stdout] 93 | .pipe(|a| Any::downcast_ref::(a)) [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 93 | .pipe(|a| ::downcast_ref::(a)) [INFO] [stdout] | ++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `len` [INFO] [stdout] --> src/lib.rs:1006:31 [INFO] [stdout] | [INFO] [stdout] 1006 | fn tuple_variant(self, len: usize, visitor: V) -> Result [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_len` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `fields` [INFO] [stdout] --> src/lib.rs:1018:9 [INFO] [stdout] | [INFO] [stdout] 1018 | fields: &'static [&'static str], [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_fields` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `len` [INFO] [stdout] --> src/lib.rs:1006:31 [INFO] [stdout] | [INFO] [stdout] 1006 | fn tuple_variant(self, len: usize, visitor: V) -> Result [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_len` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `fields` [INFO] [stdout] --> src/lib.rs:1018:9 [INFO] [stdout] | [INFO] [stdout] 1018 | fields: &'static [&'static str], [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_fields` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.62s [INFO] running `Command { std: "docker" "inspect" "b7a83ba7f5783fbd5b761343bcc17ec462e56337d71dd37dbbdad07748513200", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b7a83ba7f5783fbd5b761343bcc17ec462e56337d71dd37dbbdad07748513200", kill_on_drop: false }` [INFO] [stdout] b7a83ba7f5783fbd5b761343bcc17ec462e56337d71dd37dbbdad07748513200