[INFO] fetching crate efs 0.4.2...
[INFO] testing efs-0.4.2 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate efs 0.4.2 into /workspace/builds/worker-1-tc2/source
[INFO] removed /workspace/builds/worker-1-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate efs 0.4.2
[INFO] finished tweaking crates.io crate efs 0.4.2
[INFO] tweaked toml for crates.io crate efs 0.4.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate efs 0.4.2 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate efs 0.4.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 54614f64e42ea485f262d1d0161771f2f98b86354c240d8c212333be8b1c897f
[INFO] running `Command { std: "docker" "start" "-a" "54614f64e42ea485f262d1d0161771f2f98b86354c240d8c212333be8b1c897f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54614f64e42ea485f262d1d0161771f2f98b86354c240d8c212333be8b1c897f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54614f64e42ea485f262d1d0161771f2f98b86354c240d8c212333be8b1c897f", kill_on_drop: false }`
[INFO] [stdout] 54614f64e42ea485f262d1d0161771f2f98b86354c240d8c212333be8b1c897f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba6899d4a61c6b422dbbc7b0ea89b7fa88c7bdf999840976fb54aef5808a990d
[INFO] running `Command { std: "docker" "start" "-a" "ba6899d4a61c6b422dbbc7b0ea89b7fa88c7bdf999840976fb54aef5808a990d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling portable-atomic v1.10.0
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]    Compiling convert_case v0.6.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling once_cell v1.20.2
[INFO] [stderr]    Compiling syn v2.0.89
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling derive_more-impl v1.0.0
[INFO] [stderr]    Compiling derive_more v1.0.0
[INFO] [stderr]    Compiling efs v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/fs/structures/indirection.rs:489:20
[INFO] [stdout]     |
[INFO] [stdout] 489 |                 && let Some(block) = blocks_iterator.next()
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/fs/structures/indirection.rs:524:32
[INFO] [stdout]     |
[INFO] [stdout] 524 | ...                   && let Some(block) = blocks_iterator.next()
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/fs/structures/indirection.rs:535:20
[INFO] [stdout]     |
[INFO] [stdout] 535 |                 && let Some(block) = blocks_iterator.next()
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/fs/structures/indirection.rs:538:23
[INFO] [stdout]     |
[INFO] [stdout] 538 |                 while let Some(block) = blocks_iterator.next()
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]   --> src/fs/ext2/block_group.rs:84:16
[INFO] [stdout]    |
[INFO] [stdout] 84 |             && let Some(block_group_descriptor) = BLOCK_GROUP_DESCRIPTOR_CACHE.get_copy(&(fs.device_id, n))
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/fs/ext2/file.rs:807:12
[INFO] [stdout]     |
[INFO] [stdout] 807 |         if let Ok(file) = self.entry(name.clone())
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/fs/ext2/file.rs:928:28
[INFO] [stdout]     |
[INFO] [stdout] 928 |                         && let Some(previous_entry) = block.get_mut(index - 1)
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/fs/ext2/inode.rs:563:16
[INFO] [stdout]     |
[INFO] [stdout] 563 |             && let Some(inode) = INODE_CACHE.get_copy(&(fs.device_id, n))
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/fs/ext2/inode.rs:635:60
[INFO] [stdout]     |
[INFO] [stdout] 635 |             Ok(address_array.iter().filter(|&block_number| (*block_number != 0)).copied().collect_vec())
[INFO] [stdout]     |                                                            ^                  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 635 -             Ok(address_array.iter().filter(|&block_number| (*block_number != 0)).copied().collect_vec())
[INFO] [stdout] 635 +             Ok(address_array.iter().filter(|&block_number| *block_number != 0).copied().collect_vec())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `let_chains` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]    --> src/lib.rs:277:12
[INFO] [stdout]     |
[INFO] [stdout] 277 | #![feature(let_chains)]
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> src/fs/ext2/file.rs:916:13
[INFO] [stdout]     |
[INFO] [stdout] 916 |         let entry_name_cstring = entry_name.clone().into();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^                      ---- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `_: From<UnixStr<'_>>`
[INFO] [stdout]     = note: required for `UnixStr<'_>` to implement `Into<_>`
[INFO] [stdout] help: consider giving `entry_name_cstring` an explicit type
[INFO] [stdout]     |
[INFO] [stdout] 916 |         let entry_name_cstring: /* Type */ = entry_name.clone().into();
[INFO] [stdout]     |                               ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `efs` (lib) due to 9 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "ba6899d4a61c6b422dbbc7b0ea89b7fa88c7bdf999840976fb54aef5808a990d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba6899d4a61c6b422dbbc7b0ea89b7fa88c7bdf999840976fb54aef5808a990d", kill_on_drop: false }`
[INFO] [stdout] ba6899d4a61c6b422dbbc7b0ea89b7fa88c7bdf999840976fb54aef5808a990d