[INFO] fetching crate serde_derive_state_internals 0.4.3...
[INFO] checking serde_derive_state_internals-0.4.3 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate serde_derive_state_internals 0.4.3 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate serde_derive_state_internals 0.4.3 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_derive_state_internals 0.4.3
[INFO] finished tweaking crates.io crate serde_derive_state_internals 0.4.3
[INFO] tweaked toml for crates.io crate serde_derive_state_internals 0.4.3 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2715b6d037d14f7f3da359253544e726a7d4dd5aa6608252369f9c02e20cd30f
[INFO] running `Command { std: "docker" "start" "-a" "2715b6d037d14f7f3da359253544e726a7d4dd5aa6608252369f9c02e20cd30f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2715b6d037d14f7f3da359253544e726a7d4dd5aa6608252369f9c02e20cd30f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2715b6d037d14f7f3da359253544e726a7d4dd5aa6608252369f9c02e20cd30f", kill_on_drop: false }`
[INFO] [stdout] 2715b6d037d14f7f3da359253544e726a7d4dd5aa6608252369f9c02e20cd30f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8e3e1cd419250d95270a574f2246946d1b9f5ace524173d7b6acde34ddcb475f
[INFO] running `Command { std: "docker" "start" "-a" "8e3e1cd419250d95270a574f2246946d1b9f5ace524173d7b6acde34ddcb475f", kill_on_drop: false }`
[INFO] [stderr]     Checking syn v0.11.11
[INFO] [stderr]     Checking serde_derive_state_internals v0.4.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast.rs:87:40
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn all_fields(&'a self) -> Box<Iterator<Item = &'a Field<'a>> + 'a> {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &'a Field<'a>> + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/attr.rs:1198:18
[INFO] [stdout]      |
[INFO] [stdout] 1198 |     let string = try!(get_string_from_lit(cx, attr_name, attr_name, lit));
[INFO] [stdout]      |                  ^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/attr.rs:1208:18
[INFO] [stdout]      |
[INFO] [stdout] 1208 |     let string = try!(get_string_from_lit(cx, attr_name, meta_item_name, lit));
[INFO] [stdout]      |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/attr.rs:1221:18
[INFO] [stdout]      |
[INFO] [stdout] 1221 |     let string = try!(get_string_from_lit(cx, attr_name, attr_name, lit));
[INFO] [stdout]      |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/attr.rs:1237:18
[INFO] [stdout]      |
[INFO] [stdout] 1237 |     let string = try!(get_string_from_lit(cx, attr_name, attr_name, lit));
[INFO] [stdout]      |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/attr.rs:1266:18
[INFO] [stdout]      |
[INFO] [stdout] 1266 |     let string = try!(get_string_from_lit(cx, attr_name, attr_name, lit));
[INFO] [stdout]      |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]   --> src/case.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::ascii::AsciiExt;
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast.rs:87:40
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn all_fields(&'a self) -> Box<Iterator<Item = &'a Field<'a>> + 'a> {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &'a Field<'a>> + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/attr.rs:1198:18
[INFO] [stdout]      |
[INFO] [stdout] 1198 |     let string = try!(get_string_from_lit(cx, attr_name, attr_name, lit));
[INFO] [stdout]      |                  ^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/attr.rs:1208:18
[INFO] [stdout]      |
[INFO] [stdout] 1208 |     let string = try!(get_string_from_lit(cx, attr_name, meta_item_name, lit));
[INFO] [stdout]      |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/attr.rs:1221:18
[INFO] [stdout]      |
[INFO] [stdout] 1221 |     let string = try!(get_string_from_lit(cx, attr_name, attr_name, lit));
[INFO] [stdout]      |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/attr.rs:1237:18
[INFO] [stdout]      |
[INFO] [stdout] 1237 |     let string = try!(get_string_from_lit(cx, attr_name, attr_name, lit));
[INFO] [stdout]      |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/attr.rs:1266:18
[INFO] [stdout]      |
[INFO] [stdout] 1266 |     let string = try!(get_string_from_lit(cx, attr_name, attr_name, lit));
[INFO] [stdout]      |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]   --> src/case.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::ascii::AsciiExt;
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.86s
[INFO] running `Command { std: "docker" "inspect" "8e3e1cd419250d95270a574f2246946d1b9f5ace524173d7b6acde34ddcb475f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e3e1cd419250d95270a574f2246946d1b9f5ace524173d7b6acde34ddcb475f", kill_on_drop: false }`
[INFO] [stdout] 8e3e1cd419250d95270a574f2246946d1b9f5ace524173d7b6acde34ddcb475f