[INFO] fetching crate structural 0.4.3...
[INFO] checking structural-0.4.3 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate structural 0.4.3 into /workspace/builds/worker-96/source
[INFO] validating manifest of crates.io crate structural 0.4.3 on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate structural 0.4.3
[INFO] finished tweaking crates.io crate structural 0.4.3
[INFO] tweaked toml for crates.io crate structural 0.4.3 written to /workspace/builds/worker-96/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f135b275478c1a8dcb73d841a69bc17bbe8bc443b566a8c0bfd68bc7b0528ef
[INFO] running `Command { std: "docker" "start" "-a" "9f135b275478c1a8dcb73d841a69bc17bbe8bc443b566a8c0bfd68bc7b0528ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f135b275478c1a8dcb73d841a69bc17bbe8bc443b566a8c0bfd68bc7b0528ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f135b275478c1a8dcb73d841a69bc17bbe8bc443b566a8c0bfd68bc7b0528ef", kill_on_drop: false }`
[INFO] [stdout] 9f135b275478c1a8dcb73d841a69bc17bbe8bc443b566a8c0bfd68bc7b0528ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c282b6d8e7d0090dde6f52d01af32780434a472348a9d877b3a1f9e7420ce2ed
[INFO] running `Command { std: "docker" "start" "-a" "c282b6d8e7d0090dde6f52d01af32780434a472348a9d877b3a1f9e7420ce2ed", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] note: Switching to Edition 2021 will enable the use of the version 2 feature resolver in Cargo.
[INFO] [stderr] This may cause some dependencies to be built with fewer features enabled than previously.
[INFO] [stderr] More information about the resolver changes may be found at https://doc.rust-lang.org/nightly/edition-guide/rust-2021/default-cargo-resolver.html
[INFO] [stderr] When building the following dependencies, the given features will no longer be used:
[INFO] [stderr] 
[INFO] [stderr]   core_extensions v0.1.20 (as host dependency): alloc, colltraits
[INFO] [stderr] 
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling typed-arena v1.5.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling core_extensions v0.1.20
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling as_derive_utils v0.8.3
[INFO] [stderr]    Compiling structural_derive v0.4.3
[INFO] [stderr]     Checking structural v0.4.3 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stdout] error: tests must be run with the "testing" feature
[INFO] [stdout]    --> src/lib.rs:788:1
[INFO] [stdout]     |
[INFO] [stdout] 788 | compile_error! { "tests must be run with the \"testing\" feature" }
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate::test_utils`
[INFO] [stdout]    --> src/field/array_impls.rs:323:24
[INFO] [stdout]     |
[INFO] [stdout] 323 |             use crate::test_utils::DecOnDrop;
[INFO] [stdout]     |                        ^^^^^^^^^^ could not find `test_utils` in the crate root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: prefix `ident` is unknown
[INFO] [stdout]   --> src/field/ownership/on_drop.rs:94:28
[INFO] [stdout]    |
[INFO] [stdout] 94 |         $(unsafe $(#$dummy:ident#)?)? fn new($($extra_var:ident : $extra_ty:ty),* $(,)?)
[INFO] [stdout]    |                            ^^^^^ unknown prefix
[INFO] [stdout]    |
[INFO] [stdout]    = note: `--force-warn rust-2021-prefixes-incompatible-syntax` implied by `--force-warn rust-2021-compatibility`
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/reserving-syntax.html>
[INFO] [stdout] help: insert whitespace here to avoid this being parsed as a prefix in Rust 2021
[INFO] [stdout]    |
[INFO] [stdout] 94 -         $(unsafe $(#$dummy:ident#)?)? fn new($($extra_var:ident : $extra_ty:ty),* $(,)?)
[INFO] [stdout] 94 +         $(unsafe $(#$dummy:ident #)?)? fn new($($extra_var:ident : $extra_ty:ty),* $(,)?)
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: prefix `dummy` is unknown
[INFO] [stdout]    --> src/field/ownership/on_drop.rs:123:30
[INFO] [stdout]     |
[INFO] [stdout] 123 |             pub $(unsafe $(#$dummy#)?)?
[INFO] [stdout]     |                              ^^^^^ unknown prefix
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/reserving-syntax.html>
[INFO] [stdout] help: insert whitespace here to avoid this being parsed as a prefix in Rust 2021
[INFO] [stdout]     |
[INFO] [stdout] 123 -             pub $(unsafe $(#$dummy#)?)?
[INFO] [stdout] 123 +             pub $(unsafe $(#$dummy #)?)?
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `structural` due to 3 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr]        Fixed src/field/ownership/on_drop.rs (2 fixes)
[INFO] [stderr] error: build failed
[INFO] [stderr] error: failed to migrate to next edition
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `cargo fix --edition --allow-no-vcs --allow-dirty --frozen --all --all-targets --message-format=json` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "c282b6d8e7d0090dde6f52d01af32780434a472348a9d877b3a1f9e7420ce2ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c282b6d8e7d0090dde6f52d01af32780434a472348a9d877b3a1f9e7420ce2ed", kill_on_drop: false }`
[INFO] [stdout] c282b6d8e7d0090dde6f52d01af32780434a472348a9d877b3a1f9e7420ce2ed