[INFO] fetching crate fn_block 0.2.1...
[INFO] checking fn_block-0.2.1 against try#83ec5b3aeb5925d43b5be7b50c090f2f0336fcc1 for pr-134021
[INFO] extracting crate fn_block 0.2.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate fn_block 0.2.1
[INFO] finished tweaking crates.io crate fn_block 0.2.1
[INFO] tweaked toml for crates.io crate fn_block 0.2.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fn_block 0.2.1 on toolchain 83ec5b3aeb5925d43b5be7b50c090f2f0336fcc1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+83ec5b3aeb5925d43b5be7b50c090f2f0336fcc1" "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" "+83ec5b3aeb5925d43b5be7b50c090f2f0336fcc1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 53 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.2.11 (available: v0.8.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+83ec5b3aeb5925d43b5be7b50c090f2f0336fcc1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `fn_block` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] abfec013b1fcfbc2992003914c9e522339dffd01c28e2b556bc4aaed39aee8ac
[INFO] running `Command { std: "docker" "start" "abfec013b1fcfbc2992003914c9e522339dffd01c28e2b556bc4aaed39aee8ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "abfec013b1fcfbc2992003914c9e522339dffd01c28e2b556bc4aaed39aee8ac" "/opt/rustwide/cargo-home/bin/cargo" "+83ec5b3aeb5925d43b5be7b50c090f2f0336fcc1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abfec013b1fcfbc2992003914c9e522339dffd01c28e2b556bc4aaed39aee8ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "abfec013b1fcfbc2992003914c9e522339dffd01c28e2b556bc4aaed39aee8ac" "/opt/rustwide/cargo-home/bin/cargo" "+83ec5b3aeb5925d43b5be7b50c090f2f0336fcc1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `fn_block` (manifest) generated 1 warning
[INFO] [stderr]     Checking fn_block v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `fn_block`: Please use `fn_expr` instead, since it can also be used to wrap blocks. Blocks are expressions as well.
[INFO] [stdout]   --> src/tests.rs:25:15
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let foo = fn_block!{{
[INFO] [stdout]    |               ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `fn_block`: Please use `fn_expr` instead, since it can also be used to wrap blocks. Blocks are expressions as well.
[INFO] [stdout]   --> src/tests.rs:35:15
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let foo = fn_block!{{
[INFO] [stdout]    |               ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `fn_block`: Please use `fn_expr` instead, since it can also be used to wrap blocks. Blocks are expressions as well.
[INFO] [stdout]   --> src/tests.rs:79:15
[INFO] [stdout]    |
[INFO] [stdout] 79 |     let res = fn_block!{ Result<u32,ParseIntError>: {
[INFO] [stdout]    |               ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ConvertErr` is never used
[INFO] [stdout]    --> src/tests.rs:123:6
[INFO] [stdout]     |
[INFO] [stdout] 123 | enum ConvertErr {
[INFO] [stdout]     |      ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[macro_use]` attribute cannot be used on use statements
[INFO] [stdout]  --> benches/fn_block_benchmark.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: `#[macro_use]` can be applied to extern crates and modules
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> benches/fn_block_benchmark.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let s = o.and_then(|st| st.get(0..3)).map(|st| st.to_lowercase());
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> benches/fn_block_benchmark.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let s = (|| Some(o?.get(0..3)?.to_lowercase()))();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> benches/fn_block_benchmark.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let s = fn_expr!{ o?.get(0..3)?.to_lowercase().into_some() };
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.2.11
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 7`
[INFO] running `Command { std: "docker" "inspect" "abfec013b1fcfbc2992003914c9e522339dffd01c28e2b556bc4aaed39aee8ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abfec013b1fcfbc2992003914c9e522339dffd01c28e2b556bc4aaed39aee8ac", kill_on_drop: false }`
[INFO] [stdout] abfec013b1fcfbc2992003914c9e522339dffd01c28e2b556bc4aaed39aee8ac
