[INFO] fetching crate redb_model_derive 0.12.1...
[INFO] checking redb_model_derive-0.12.1 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate redb_model_derive 0.12.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate redb_model_derive 0.12.1
[INFO] finished tweaking crates.io crate redb_model_derive 0.12.1
[INFO] tweaked toml for crates.io crate redb_model_derive 0.12.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate redb_model_derive 0.12.1 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 13 packages to latest compatible versions
[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] [stderr] warning: `proc_macro` is deprecated in favor of `proc-macro` and will not work in the 2024 edition
[INFO] [stderr] (in the `redb_model_derive` library target)
[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] 8c7867d9b7c5f8dae4b7cd175ed1c8ab7e84f014abfeaef76e070a639d32a9f9
[INFO] running `Command { std: "docker" "start" "-a" "8c7867d9b7c5f8dae4b7cd175ed1c8ab7e84f014abfeaef76e070a639d32a9f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c7867d9b7c5f8dae4b7cd175ed1c8ab7e84f014abfeaef76e070a639d32a9f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c7867d9b7c5f8dae4b7cd175ed1c8ab7e84f014abfeaef76e070a639d32a9f9", kill_on_drop: false }`
[INFO] [stdout] 8c7867d9b7c5f8dae4b7cd175ed1c8ab7e84f014abfeaef76e070a639d32a9f9
[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] 3fc1cca19ad6cb2e9b0f88179e71b4745d96dff40f072187a25a54c08fa72474
[INFO] running `Command { std: "docker" "start" "-a" "3fc1cca19ad6cb2e9b0f88179e71b4745d96dff40f072187a25a54c08fa72474", 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 `redb_model_derive` library target)
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling redb v2.6.0
[INFO] [stderr]     Checking strsim v0.11.1
[INFO] [stderr]     Checking ident_case v1.0.1
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking redb_model_trait v0.8.0
[INFO] [stderr]     Checking darling_core v0.20.11
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]     Checking darling v0.20.11
[INFO] [stderr]     Checking redb_model_derive v0.12.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `ident_ref` is never used
[INFO] [stdout]   --> src/args/entry.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl EntryArgs {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn ident_ref(&self) -> Expr {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `ident_ref` is never used
[INFO] [stdout]   --> src/args/entry.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl EntryArgs {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn ident_ref(&self) -> Expr {
[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 10.27s
[INFO] running `Command { std: "docker" "inspect" "3fc1cca19ad6cb2e9b0f88179e71b4745d96dff40f072187a25a54c08fa72474", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fc1cca19ad6cb2e9b0f88179e71b4745d96dff40f072187a25a54c08fa72474", kill_on_drop: false }`
[INFO] [stdout] 3fc1cca19ad6cb2e9b0f88179e71b4745d96dff40f072187a25a54c08fa72474