[INFO] fetching crate regecs-codegen 2.0.0-rc.1.0.0...
[INFO] checking regecs-codegen-2.0.0-rc.1.0.0 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate regecs-codegen 2.0.0-rc.1.0.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate regecs-codegen 2.0.0-rc.1.0.0
[INFO] finished tweaking crates.io crate regecs-codegen 2.0.0-rc.1.0.0
[INFO] tweaked toml for crates.io crate regecs-codegen 2.0.0-rc.1.0.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate regecs-codegen 2.0.0-rc.1.0.0 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.106)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `proc_macro` is deprecated in favor of `proc-macro` and will not work in the 2024 edition
[INFO] [stderr] (in the `regecs_codegen` library target)
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8216d9fd6d54ab82cfe7bad90e5324c3a6588dc8931212441d5f2b742a12986a
[INFO] running `Command { std: "docker" "start" "-a" "8216d9fd6d54ab82cfe7bad90e5324c3a6588dc8931212441d5f2b742a12986a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8216d9fd6d54ab82cfe7bad90e5324c3a6588dc8931212441d5f2b742a12986a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8216d9fd6d54ab82cfe7bad90e5324c3a6588dc8931212441d5f2b742a12986a", kill_on_drop: false }`
[INFO] [stdout] 8216d9fd6d54ab82cfe7bad90e5324c3a6588dc8931212441d5f2b742a12986a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b8a66d49d95312ed3dc77649e6d7c2a21f8242d7ae8eb2e1fe2472a3c10cfbd
[INFO] running `Command { std: "docker" "start" "-a" "5b8a66d49d95312ed3dc77649e6d7c2a21f8242d7ae8eb2e1fe2472a3c10cfbd", kill_on_drop: false }`
[INFO] [stderr] warning: `proc_macro` is deprecated in favor of `proc-macro` and will not work in the 2024 edition
[INFO] [stderr] (in the `regecs_codegen` library target)
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]     Checking unicode-ident v1.0.18
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]     Checking regecs-codegen v2.0.0-rc.1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `no_clear`
[INFO] [stdout]    --> src/clear.rs:102:13
[INFO] [stdout]     |
[INFO] [stdout] 102 |         let no_clear = v.attrs.iter().any(|v| {
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_no_clear`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `no_clear`
[INFO] [stdout]    --> src/clear.rs:102:13
[INFO] [stdout]     |
[INFO] [stdout] 102 |         let no_clear = v.attrs.iter().any(|v| {
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_no_clear`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `no_clear`
[INFO] [stdout]    --> src/clear.rs:124:13
[INFO] [stdout]     |
[INFO] [stdout] 124 |         let no_clear = f.attrs.iter().any(|v| {
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_no_clear`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `no_clear`
[INFO] [stdout]    --> src/clear.rs:124:13
[INFO] [stdout]     |
[INFO] [stdout] 124 |         let no_clear = f.attrs.iter().any(|v| {
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_no_clear`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_index` is never used
[INFO] [stdout]   --> src/dispatch.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl FieldName {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub fn to_index(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_index` is never used
[INFO] [stdout]   --> src/dispatch.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl FieldName {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub fn to_index(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.40s
[INFO] running `Command { std: "docker" "inspect" "5b8a66d49d95312ed3dc77649e6d7c2a21f8242d7ae8eb2e1fe2472a3c10cfbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b8a66d49d95312ed3dc77649e6d7c2a21f8242d7ae8eb2e1fe2472a3c10cfbd", kill_on_drop: false }`
[INFO] [stdout] 5b8a66d49d95312ed3dc77649e6d7c2a21f8242d7ae8eb2e1fe2472a3c10cfbd