[INFO] fetching crate serde_derive_state_internals 0.4.3...
[INFO] checking serde_derive_state_internals-0.4.3 against master#38352b01ae4af9300be03b805d6db68c45e51068 for pr-129864
[INFO] extracting crate serde_derive_state_internals 0.4.3 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate serde_derive_state_internals 0.4.3 on toolchain 38352b01ae4af9300be03b805d6db68c45e51068
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "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-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] [stderr]       Adding syn v0.11.11 (available: v2.0.77)
[INFO] [stderr]       Adding unicode-xid v0.0.4 (available: v0.2.6)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd89614ea71adad601df3fef1e72eb666396d877776a320ef82d9c19f4fe7921
[INFO] running `Command { std: "docker" "start" "-a" "fd89614ea71adad601df3fef1e72eb666396d877776a320ef82d9c19f4fe7921", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd89614ea71adad601df3fef1e72eb666396d877776a320ef82d9c19f4fe7921", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd89614ea71adad601df3fef1e72eb666396d877776a320ef82d9c19f4fe7921", kill_on_drop: false }`
[INFO] [stdout] fd89614ea71adad601df3fef1e72eb666396d877776a320ef82d9c19f4fe7921
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a7ec7b595db6fd2c290fa336a702b3de567d33eb37da9e6214ec5244f9d260f
[INFO] running `Command { std: "docker" "start" "-a" "9a7ec7b595db6fd2c290fa336a702b3de567d33eb37da9e6214ec5244f9d260f", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking unicode-xid v0.0.4
[INFO] [stderr]     Checking synom v0.11.3
[INFO] [stderr]     Checking syn v0.11.11
[INFO] [stderr]     Checking serde_derive_state_internals v0.4.3 (/opt/rustwide/workdir)
[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 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 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]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn all_fields(&'a self) -> Box<dyn Iterator<Item = &'a Field<'a>> + 'a> {
[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]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn all_fields(&'a self) -> Box<dyn Iterator<Item = &'a Field<'a>> + 'a> {
[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` profile [unoptimized + debuginfo] target(s) in 1.64s
[INFO] running `Command { std: "docker" "inspect" "9a7ec7b595db6fd2c290fa336a702b3de567d33eb37da9e6214ec5244f9d260f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a7ec7b595db6fd2c290fa336a702b3de567d33eb37da9e6214ec5244f9d260f", kill_on_drop: false }`
[INFO] [stdout] 9a7ec7b595db6fd2c290fa336a702b3de567d33eb37da9e6214ec5244f9d260f