[INFO] fetching crate toml-example-derive 0.13.0... [INFO] checking toml-example-derive-0.13.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170 [INFO] extracting crate toml-example-derive 0.13.0 into /workspace/builds/worker-0-tc1/source [INFO] started tweaking crates.io crate toml-example-derive 0.13.0 [INFO] finished tweaking crates.io crate toml-example-derive 0.13.0 [INFO] tweaked toml for crates.io crate toml-example-derive 0.13.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate toml-example-derive 0.13.0 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] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 6 packages to latest compatible versions [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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 87c0ef00e56acb3e62aa9c7ae0e3375bc4d2ed47e9975cdc8a431a5219ba8777 [INFO] running `Command { std: "docker" "start" "-a" "87c0ef00e56acb3e62aa9c7ae0e3375bc4d2ed47e9975cdc8a431a5219ba8777", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "87c0ef00e56acb3e62aa9c7ae0e3375bc4d2ed47e9975cdc8a431a5219ba8777", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "87c0ef00e56acb3e62aa9c7ae0e3375bc4d2ed47e9975cdc8a431a5219ba8777", kill_on_drop: false }` [INFO] [stdout] 87c0ef00e56acb3e62aa9c7ae0e3375bc4d2ed47e9975cdc8a431a5219ba8777 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] dbbc0b1e326c4bc1d15a532d5367f3960fc45351cd29dbe77f4a48f1d93bbc07 [INFO] running `Command { std: "docker" "start" "-a" "dbbc0b1e326c4bc1d15a532d5367f3960fc45351cd29dbe77f4a48f1d93bbc07", kill_on_drop: false }` [INFO] [stderr] Checking unicode-ident v1.0.18 [INFO] [stderr] Compiling proc-macro-error-attr2 v2.0.0 [INFO] [stderr] Checking proc-macro2 v1.0.95 [INFO] [stderr] Checking quote v1.0.40 [INFO] [stderr] Checking syn v2.0.104 [INFO] [stderr] Checking proc-macro-error2 v2.0.1 [INFO] [stderr] Checking toml-example-derive v0.13.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:192:9 [INFO] [stdout] | [INFO] [stdout] 192 | let mut rename = None; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:193:9 [INFO] [stdout] | [INFO] [stdout] 193 | let mut rename_rule = case::RenameRule::None; [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:192:9 [INFO] [stdout] | [INFO] [stdout] 192 | let mut rename = None; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:193:9 [INFO] [stdout] | [INFO] [stdout] 193 | let mut rename_rule = case::RenameRule::None; [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `LowerCase` is never constructed [INFO] [stdout] --> src/case.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 12 | pub enum RenameRule { [INFO] [stdout] | ---------- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 16 | LowerCase, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `RenameRule` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static `RENAME_RULES` is never used [INFO] [stdout] --> src/case.rs:36:8 [INFO] [stdout] | [INFO] [stdout] 36 | static RENAME_RULES: &[(&str, RenameRule)] = &[ [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `from_str` is never used [INFO] [stdout] --> src/case.rs:48:12 [INFO] [stdout] | [INFO] [stdout] 47 | impl RenameRule { [INFO] [stdout] | --------------- associated function in this implementation [INFO] [stdout] 48 | pub fn from_str(rename_all_str: &str) -> Result { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `ParseError` is never constructed [INFO] [stdout] --> src/case.rs:90:12 [INFO] [stdout] | [INFO] [stdout] 90 | pub struct ParseError<'a> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/case.rs:48:37 [INFO] [stdout] | [INFO] [stdout] 48 | pub fn from_str(rename_all_str: &str) -> Result { [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] 48 | pub fn from_str(rename_all_str: &str) -> Result> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `LowerCase`, `UpperCase`, `CamelCase`, `SnakeCase`, `KebabCase`, and `ScreamingKebabCase` are never constructed [INFO] [stdout] --> src/case.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 12 | pub enum RenameRule { [INFO] [stdout] | ---------- variants in this enum [INFO] [stdout] ... [INFO] [stdout] 16 | LowerCase, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 17 | /// Rename direct children to "UPPERCASE" style. [INFO] [stdout] 18 | UpperCase, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 23 | CamelCase, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 26 | SnakeCase, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 31 | KebabCase, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 32 | /// Rename direct children to "SCREAMING-KEBAB-CASE" style. [INFO] [stdout] 33 | ScreamingKebabCase, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `RenameRule` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static `RENAME_RULES` is never used [INFO] [stdout] --> src/case.rs:36:8 [INFO] [stdout] | [INFO] [stdout] 36 | static RENAME_RULES: &[(&str, RenameRule)] = &[ [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `from_str` is never used [INFO] [stdout] --> src/case.rs:48:12 [INFO] [stdout] | [INFO] [stdout] 47 | impl RenameRule { [INFO] [stdout] | --------------- associated function in this implementation [INFO] [stdout] 48 | pub fn from_str(rename_all_str: &str) -> Result { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `ParseError` is never constructed [INFO] [stdout] --> src/case.rs:90:12 [INFO] [stdout] | [INFO] [stdout] 90 | pub struct ParseError<'a> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/case.rs:48:37 [INFO] [stdout] | [INFO] [stdout] 48 | pub fn from_str(rename_all_str: &str) -> Result { [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] 48 | pub fn from_str(rename_all_str: &str) -> Result> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.75s [INFO] running `Command { std: "docker" "inspect" "dbbc0b1e326c4bc1d15a532d5367f3960fc45351cd29dbe77f4a48f1d93bbc07", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dbbc0b1e326c4bc1d15a532d5367f3960fc45351cd29dbe77f4a48f1d93bbc07", kill_on_drop: false }` [INFO] [stdout] dbbc0b1e326c4bc1d15a532d5367f3960fc45351cd29dbe77f4a48f1d93bbc07