[INFO] fetching crate serde_derive_state 0.4.9...
[INFO] checking serde_derive_state-0.4.9 against master#a874956d940ecb3ed524b6176a171219ac4787ea for pr-76104
[INFO] extracting crate serde_derive_state 0.4.9 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate serde_derive_state 0.4.9 on toolchain a874956d940ecb3ed524b6176a171219ac4787ea
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_derive_state 0.4.9
[INFO] finished tweaking crates.io crate serde_derive_state 0.4.9
[INFO] tweaked toml for crates.io crate serde_derive_state 0.4.9 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44afa9ec7b0079e9b19b40c06701c681fb317f2753ec4e24e33d53fbb19ce6e2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "44afa9ec7b0079e9b19b40c06701c681fb317f2753ec4e24e33d53fbb19ce6e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44afa9ec7b0079e9b19b40c06701c681fb317f2753ec4e24e33d53fbb19ce6e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44afa9ec7b0079e9b19b40c06701c681fb317f2753ec4e24e33d53fbb19ce6e2", kill_on_drop: false }`
[INFO] [stdout] 44afa9ec7b0079e9b19b40c06701c681fb317f2753ec4e24e33d53fbb19ce6e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f115605adf8e8ba016ea8c9ba34b0da23b2e46e5fd474509f742d5de4f06743
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8f115605adf8e8ba016ea8c9ba34b0da23b2e46e5fd474509f742d5de4f06743", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking proc-macro2 v1.0.21
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]     Checking syn v1.0.41
[INFO] [stderr]     Checking serde_derive_state v0.4.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/internals/attr.rs:1839:18
[INFO] [stdout]      |
[INFO] [stdout] 1839 |     let string = try!(get_lit_str(cx, attr_name, lit));
[INFO] [stdout]      |                  ^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/ser.rs:941:13
[INFO] [stdout]     |
[INFO] [stdout] 941 |             (StructTrait::SerializeStruct)
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/internals/attr.rs:1839:18
[INFO] [stdout]      |
[INFO] [stdout] 1839 |     let string = try!(get_lit_str(cx, attr_name, lit));
[INFO] [stdout]      |                  ^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/ser.rs:941:13
[INFO] [stdout]     |
[INFO] [stdout] 941 |             (StructTrait::SerializeStruct)
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `deserialize_tuple_in_place`
[INFO] [stdout]    --> src/de.rs:577:4
[INFO] [stdout]     |
[INFO] [stdout] 577 | fn deserialize_tuple_in_place(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `deserialize_seq_in_place`
[INFO] [stdout]    --> src/de.rs:758:4
[INFO] [stdout]     |
[INFO] [stdout] 758 | fn deserialize_seq_in_place(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `deserialize_newtype_struct_in_place`
[INFO] [stdout]    --> src/de.rs:883:4
[INFO] [stdout]     |
[INFO] [stdout] 883 | fn deserialize_newtype_struct_in_place(params: &Parameters, field: &Field) -> TokenStream {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `deserialize_struct_in_place`
[INFO] [stdout]     --> src/de.rs:1076:4
[INFO] [stdout]      |
[INFO] [stdout] 1076 | fn deserialize_struct_in_place(
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `deserialize_struct_as_struct_in_place_visitor`
[INFO] [stdout]     --> src/de.rs:2615:4
[INFO] [stdout]      |
[INFO] [stdout] 2615 | fn deserialize_struct_as_struct_in_place_visitor(
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `deserialize_map_in_place`
[INFO] [stdout]     --> src/de.rs:2649:4
[INFO] [stdout]      |
[INFO] [stdout] 2649 | fn deserialize_map_in_place(
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `in_place`
[INFO] [stdout]     --> src/de.rs:3061:8
[INFO] [stdout]      |
[INFO] [stdout] 3061 |     fn in_place(self) -> InPlaceImplGenerics<'a> {
[INFO] [stdout]      |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `in_place`
[INFO] [stdout]     --> src/de.rs:3115:8
[INFO] [stdout]      |
[INFO] [stdout] 3115 |     fn in_place(self) -> InPlaceTypeGenerics<'a> {
[INFO] [stdout]      |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `deserialize_tuple_in_place`
[INFO] [stdout]    --> src/de.rs:577:4
[INFO] [stdout]     |
[INFO] [stdout] 577 | fn deserialize_tuple_in_place(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `deserialize_seq_in_place`
[INFO] [stdout]    --> src/de.rs:758:4
[INFO] [stdout]     |
[INFO] [stdout] 758 | fn deserialize_seq_in_place(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `deserialize_newtype_struct_in_place`
[INFO] [stdout]    --> src/de.rs:883:4
[INFO] [stdout]     |
[INFO] [stdout] 883 | fn deserialize_newtype_struct_in_place(params: &Parameters, field: &Field) -> TokenStream {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `deserialize_struct_in_place`
[INFO] [stdout]     --> src/de.rs:1076:4
[INFO] [stdout]      |
[INFO] [stdout] 1076 | fn deserialize_struct_in_place(
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `deserialize_struct_as_struct_in_place_visitor`
[INFO] [stdout]     --> src/de.rs:2615:4
[INFO] [stdout]      |
[INFO] [stdout] 2615 | fn deserialize_struct_as_struct_in_place_visitor(
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `deserialize_map_in_place`
[INFO] [stdout]     --> src/de.rs:2649:4
[INFO] [stdout]      |
[INFO] [stdout] 2649 | fn deserialize_map_in_place(
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `in_place`
[INFO] [stdout]     --> src/de.rs:3061:8
[INFO] [stdout]      |
[INFO] [stdout] 3061 |     fn in_place(self) -> InPlaceImplGenerics<'a> {
[INFO] [stdout]      |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `in_place`
[INFO] [stdout]     --> src/de.rs:3115:8
[INFO] [stdout]      |
[INFO] [stdout] 3115 |     fn in_place(self) -> InPlaceTypeGenerics<'a> {
[INFO] [stdout]      |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.10s
[INFO] running `Command { std: "docker" "inspect" "8f115605adf8e8ba016ea8c9ba34b0da23b2e46e5fd474509f742d5de4f06743", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f115605adf8e8ba016ea8c9ba34b0da23b2e46e5fd474509f742d5de4f06743", kill_on_drop: false }`
[INFO] [stdout] 8f115605adf8e8ba016ea8c9ba34b0da23b2e46e5fd474509f742d5de4f06743