[INFO] fetching crate delta-struct-macros 0.1.0...
[INFO] fixing delta-struct-macros-0.1.0 against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=end=2015,2024 for pr-157817-2
[INFO] extracting crate delta-struct-macros 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate delta-struct-macros 0.1.0
[INFO] finished tweaking crates.io crate delta-struct-macros 0.1.0
[INFO] tweaked toml for crates.io crate delta-struct-macros 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate delta-struct-macros 0.1.0 on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "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" "+622891a4e29178280638a6b63a8908bde2c0c854" "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 7 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.118)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `proc_macro` is deprecated in favor of `proc-macro` and will not work in the 2024 edition
[INFO] [stderr] (in the `delta_struct_macros` library target)
[INFO] [stderr] warning: `delta-struct-macros` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:rw,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] 557d46e3fdfc40bf07f8a484e9eab285ab266527a1c9a408d83f2438f3de1551
[INFO] running `Command { std: "docker" "start" "557d46e3fdfc40bf07f8a484e9eab285ab266527a1c9a408d83f2438f3de1551", 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" "557d46e3fdfc40bf07f8a484e9eab285ab266527a1c9a408d83f2438f3de1551" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "557d46e3fdfc40bf07f8a484e9eab285ab266527a1c9a408d83f2438f3de1551", 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=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "557d46e3fdfc40bf07f8a484e9eab285ab266527a1c9a408d83f2438f3de1551" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=end=2015,2024", kill_on_drop: false }`
[INFO] [stderr] crater-edition-check: migrating to next edition
[INFO] [stderr]    Migrating Cargo.toml from 2018 edition to 2021
[INFO] [stderr] warning: Cargo.toml: `proc_macro` is deprecated in favor of `proc-macro` and will not work in the 2024 edition
[INFO] [stderr] (in the `delta_struct_macros` library target)
[INFO] [stderr] warning: `delta-struct-macros` (manifest) generated 1 warning
[INFO] [stderr]     Checking unicode-ident v1.0.24
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking proc-macro2 v1.0.106
[INFO] [stderr]     Checking quote v1.0.46
[INFO] [stderr]     Checking delta-struct-macros v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.40s
[INFO] [stderr] crater-edition-check: delta-struct-macros v0.1.0 (/opt/rustwide/workdir) updating edition from 2018 to 2021
[INFO] [stderr] warning: Cargo.toml: `proc_macro` is deprecated in favor of `proc-macro` and will not work in the 2024 edition
[INFO] [stderr] (in the `delta_struct_macros` library target)
[INFO] [stderr] warning: `delta-struct-macros` (manifest) generated 1 warning
[INFO] [stderr]     Checking delta-struct-macros v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:354:27
[INFO] [stdout]     |
[INFO] [stdout] 354 |     UnrecognizedJunkFound(Vec<NestedMeta>),
[INFO] [stdout]     |     --------------------- ^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 354 -     UnrecognizedJunkFound(Vec<NestedMeta>),
[INFO] [stdout] 354 +     UnrecognizedJunkFound(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:354:27
[INFO] [stdout]     |
[INFO] [stdout] 354 |     UnrecognizedJunkFound(Vec<NestedMeta>),
[INFO] [stdout]     |     --------------------- ^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 354 -     UnrecognizedJunkFound(Vec<NestedMeta>),
[INFO] [stdout] 354 +     UnrecognizedJunkFound(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.66s
[INFO] [stderr] crater-edition-check: migrating to next edition
[INFO] [stderr]    Migrating Cargo.toml from 2018 edition to 2021
[INFO] [stderr] warning: Cargo.toml: `proc_macro` is deprecated in favor of `proc-macro` and will not work in the 2024 edition
[INFO] [stderr] (in the `delta_struct_macros` library target)
[INFO] [stderr] warning: `delta-struct-macros` (manifest) generated 1 warning
[INFO] [stderr]     Checking delta-struct-macros v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Migrating src/lib.rs from 2021 edition to 2024
[INFO] [stdout] warning: relative drop order changing in Rust 2024
[INFO] [stdout]    --> src/lib.rs:362:64
[INFO] [stdout]     |
[INFO] [stdout] 361 |     for attr in iter {
[INFO] [stdout]     |         ----    ----
[INFO] [stdout]     |         |       |
[INFO] [stdout]     |         |       this value will be stored in a temporary; let us call it `#1`
[INFO] [stdout]     |         |       `#1` will be dropped later as of Edition 2024
[INFO] [stdout]     |         `attr` calls a custom destructor
[INFO] [stdout]     |         `attr` will be dropped later as of Edition 2024
[INFO] [stdout] 362 |         if let Ok(Meta::List(MetaList { path, nested, .. })) = attr.parse_meta() {
[INFO] [stdout]     |                                         ----  ------           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                         |     |                |
[INFO] [stdout]     |                                         |     |                this value will be stored in a temporary; let us call it `#2`
[INFO] [stdout]     |                                         |     |                up until Edition 2021 `#2` is dropped last but will be dropped earlier in Edition 2024
[INFO] [stdout]     |                                         |     `nested` calls a custom destructor
[INFO] [stdout]     |                                         |     `nested` will be dropped later as of Edition 2024
[INFO] [stdout]     |                                         `path` calls a custom destructor
[INFO] [stdout]     |                                         `path` will be dropped later as of Edition 2024
[INFO] [stdout] 363 |             let Path { segments, .. } = path;
[INFO] [stdout]     |                        --------
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        `segments` calls a custom destructor
[INFO] [stdout]     |                        `segments` will be dropped later as of Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 369 |                 let values: Result<Vec<_>, Vec<NestedMeta>> = nested
[INFO] [stdout]     |                     ------
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     `values` calls a custom destructor
[INFO] [stdout]     |                     `values` will be dropped later as of Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 414 |     }
[INFO] [stdout]     |     - now the temporary value is dropped here, before the local variables in the block or statement
[INFO] [stdout]     |
[INFO] [stdout] note: `#2` invokes this custom destructor
[INFO] [stdout]    --> /rustc/622891a4e29178280638a6b63a8908bde2c0c854/library/proc_macro/src/bridge/client.rs:21:0
[INFO] [stdout] note: `#1` invokes this custom destructor
[INFO] [stdout]    --> /rustc/622891a4e29178280638a6b63a8908bde2c0c854/library/proc_macro/src/bridge/client.rs:21:0
[INFO] [stdout] note: `attr` invokes this custom destructor
[INFO] [stdout]    --> /rustc/622891a4e29178280638a6b63a8908bde2c0c854/library/proc_macro/src/bridge/client.rs:21:0
[INFO] [stdout] note: `path` invokes this custom destructor
[INFO] [stdout]    --> /rustc/622891a4e29178280638a6b63a8908bde2c0c854/library/proc_macro/src/bridge/client.rs:21:0
[INFO] [stdout] note: `nested` invokes this custom destructor
[INFO] [stdout]    --> /rustc/622891a4e29178280638a6b63a8908bde2c0c854/library/proc_macro/src/bridge/client.rs:21:0
[INFO] [stdout] note: `segments` invokes this custom destructor
[INFO] [stdout]    --> /rustc/622891a4e29178280638a6b63a8908bde2c0c854/library/proc_macro/src/bridge/client.rs:21:0
[INFO] [stdout] note: `values` invokes this custom destructor
[INFO] [stdout]    --> /rustc/622891a4e29178280638a6b63a8908bde2c0c854/library/proc_macro/src/bridge/client.rs:21:0
[INFO] [stdout]     = note: most of the time, changing drop order is harmless; inspect the `impl Drop`s for side effects like releasing locks or sending messages
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/temporary-tail-expr-scope.html>
[INFO] [stdout]     = note: `--force-warn tail-expr-drop-order` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: relative drop order changing in Rust 2024
[INFO] [stdout]    --> src/lib.rs:362:64
[INFO] [stdout]     |
[INFO] [stdout] 361 |     for attr in iter {
[INFO] [stdout]     |         ----    ----
[INFO] [stdout]     |         |       |
[INFO] [stdout]     |         |       this value will be stored in a temporary; let us call it `#1`
[INFO] [stdout]     |         |       `#1` will be dropped later as of Edition 2024
[INFO] [stdout]     |         `attr` calls a custom destructor
[INFO] [stdout]     |         `attr` will be dropped later as of Edition 2024
[INFO] [stdout] 362 |         if let Ok(Meta::List(MetaList { path, nested, .. })) = attr.parse_meta() {
[INFO] [stdout]     |                                         ----  ------           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                         |     |                |
[INFO] [stdout]     |                                         |     |                this value will be stored in a temporary; let us call it `#2`
[INFO] [stdout]     |                                         |     |                up until Edition 2021 `#2` is dropped last but will be dropped earlier in Edition 2024
[INFO] [stdout]     |                                         |     `nested` calls a custom destructor
[INFO] [stdout]     |                                         |     `nested` will be dropped later as of Edition 2024
[INFO] [stdout]     |                                         `path` calls a custom destructor
[INFO] [stdout]     |                                         `path` will be dropped later as of Edition 2024
[INFO] [stdout] 363 |             let Path { segments, .. } = path;
[INFO] [stdout]     |                        --------
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        `segments` calls a custom destructor
[INFO] [stdout]     |                        `segments` will be dropped later as of Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 369 |                 let values: Result<Vec<_>, Vec<NestedMeta>> = nested
[INFO] [stdout]     |                     ------
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     `values` calls a custom destructor
[INFO] [stdout]     |                     `values` will be dropped later as of Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 414 |     }
[INFO] [stdout]     |     - now the temporary value is dropped here, before the local variables in the block or statement
[INFO] [stdout]     |
[INFO] [stdout] note: `#2` invokes this custom destructor
[INFO] [stdout]    --> /rustc/622891a4e29178280638a6b63a8908bde2c0c854/library/proc_macro/src/bridge/client.rs:21:0
[INFO] [stdout] note: `#1` invokes this custom destructor
[INFO] [stdout]    --> /rustc/622891a4e29178280638a6b63a8908bde2c0c854/library/proc_macro/src/bridge/client.rs:21:0
[INFO] [stdout] note: `attr` invokes this custom destructor
[INFO] [stdout]    --> /rustc/622891a4e29178280638a6b63a8908bde2c0c854/library/proc_macro/src/bridge/client.rs:21:0
[INFO] [stdout] note: `path` invokes this custom destructor
[INFO] [stdout]    --> /rustc/622891a4e29178280638a6b63a8908bde2c0c854/library/proc_macro/src/bridge/client.rs:21:0
[INFO] [stdout] note: `nested` invokes this custom destructor
[INFO] [stdout]    --> /rustc/622891a4e29178280638a6b63a8908bde2c0c854/library/proc_macro/src/bridge/client.rs:21:0
[INFO] [stdout] note: `segments` invokes this custom destructor
[INFO] [stdout]    --> /rustc/622891a4e29178280638a6b63a8908bde2c0c854/library/proc_macro/src/bridge/client.rs:21:0
[INFO] [stdout] note: `values` invokes this custom destructor
[INFO] [stdout]    --> /rustc/622891a4e29178280638a6b63a8908bde2c0c854/library/proc_macro/src/bridge/client.rs:21:0
[INFO] [stdout]     = note: most of the time, changing drop order is harmless; inspect the `impl Drop`s for side effects like releasing locks or sending messages
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/temporary-tail-expr-scope.html>
[INFO] [stdout]     = note: `--force-warn tail-expr-drop-order` implied by `--force-warn rust-2024-compatibility`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.06s
[INFO] [stderr] crater-edition-check: delta-struct-macros v0.1.0 (/opt/rustwide/workdir) updating edition from 2021 to 2024
[INFO] [stderr] error: failed to parse manifest at `/opt/rustwide/workdir/Cargo.toml`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   `proc_macro` is unsupported as of the 2024 edition; instead use `proc-macro`
[INFO] [stderr]   (in the `delta_struct_macros` library target)
[INFO] running `Command { std: "docker" "inspect" "557d46e3fdfc40bf07f8a484e9eab285ab266527a1c9a408d83f2438f3de1551", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "557d46e3fdfc40bf07f8a484e9eab285ab266527a1c9a408d83f2438f3de1551", kill_on_drop: false }`
[INFO] [stdout] 557d46e3fdfc40bf07f8a484e9eab285ab266527a1c9a408d83f2438f3de1551
