[INFO] fetching crate serde-object 0.0.0-alpha.0... [INFO] checking serde-object-0.0.0-alpha.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170 [INFO] extracting crate serde-object 0.0.0-alpha.0 into /workspace/builds/worker-3-tc1/source [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-3-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate serde-object 0.0.0-alpha.0 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 17 packages to latest compatible versions [INFO] [stderr] Adding linkme v0.2.10 (available: v0.3.33) [INFO] [stderr] Adding try_match v0.2.3 (available: v0.4.2) [INFO] [stderr] Adding wyz v0.2.0 (available: v0.6.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 51618a500347e8e6945622999edcace03641aef2e8505f966594c0c3402300f2 [INFO] running `Command { std: "docker" "start" "-a" "51618a500347e8e6945622999edcace03641aef2e8505f966594c0c3402300f2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "51618a500347e8e6945622999edcace03641aef2e8505f966594c0c3402300f2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "51618a500347e8e6945622999edcace03641aef2e8505f966594c0c3402300f2", kill_on_drop: false }` [INFO] [stdout] 51618a500347e8e6945622999edcace03641aef2e8505f966594c0c3402300f2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 40c0ecb40e932ca41775c310a6c24ff3c100c015efe943a0212816071cfb3d55 [INFO] running `Command { std: "docker" "start" "-a" "40c0ecb40e932ca41775c310a6c24ff3c100c015efe943a0212816071cfb3d55", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling proc-macro-hack v0.5.20+deprecated [INFO] [stderr] Checking wyz v0.2.0 [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 a dyn-compatible 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 a dyn-compatible 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: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:1032:14 [INFO] [stdout] | [INFO] [stdout] 1032 | fn unexp(&self) -> de::Unexpected { [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] 1032 | fn unexp(&self) -> de::Unexpected<'_> { [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: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:1032:14 [INFO] [stdout] | [INFO] [stdout] 1032 | fn unexp(&self) -> de::Unexpected { [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] 1032 | fn unexp(&self) -> de::Unexpected<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.60s [INFO] running `Command { std: "docker" "inspect" "40c0ecb40e932ca41775c310a6c24ff3c100c015efe943a0212816071cfb3d55", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "40c0ecb40e932ca41775c310a6c24ff3c100c015efe943a0212816071cfb3d55", kill_on_drop: false }` [INFO] [stdout] 40c0ecb40e932ca41775c310a6c24ff3c100c015efe943a0212816071cfb3d55