[INFO] fetching crate parse-macros 0.1.0...
[INFO] checking parse-macros-0.1.0 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate parse-macros 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate parse-macros 0.1.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate parse-macros 0.1.0
[INFO] removed path dependency parse-generics-poc from crates.io crate parse-macros 0.1.0
[INFO] removed path dependency parse-generics-shim from crates.io crate parse-macros 0.1.0
[INFO] finished tweaking crates.io crate parse-macros 0.1.0
[INFO] tweaked toml for crates.io crate parse-macros 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "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" "+beta-2020-07-24" "fetch" "--locked" "--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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "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] 2c88e572966a737199e7db79a846f33332e37b51b4dec42c26dcc4902f78ec7f
[INFO] running `Command { std: "docker" "start" "-a" "2c88e572966a737199e7db79a846f33332e37b51b4dec42c26dcc4902f78ec7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c88e572966a737199e7db79a846f33332e37b51b4dec42c26dcc4902f78ec7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c88e572966a737199e7db79a846f33332e37b51b4dec42c26dcc4902f78ec7f", kill_on_drop: false }`
[INFO] [stdout] 2c88e572966a737199e7db79a846f33332e37b51b4dec42c26dcc4902f78ec7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2ab5d4218f57435fda134d82a83bdf7a0e78b6469215ec1b662f70380bcc8e8
[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" "d2ab5d4218f57435fda134d82a83bdf7a0e78b6469215ec1b662f70380bcc8e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling parse-macros v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]    --> src/lib.rs:524:1
[INFO] [stdout]     |
[INFO] [stdout] 524 | #[macro_use] extern crate parse_generics_shim;
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking serde v0.6.15
[INFO] [stderr]     Checking serde_json v0.6.1
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> tests/derive_serialize.rs:448:25
[INFO] [stdout]     |
[INFO] [stdout] 448 |                 Ok(Some(try!(ser.visit_tuple_elt(self.tup.0))))
[INFO] [stdout]     |                         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> tests/derive_serialize.rs:490:25
[INFO] [stdout]     |
[INFO] [stdout] 490 |                 Ok(Some(try!(ser.visit_tuple_elt(self.tup.0))))
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> tests/derive_serialize.rs:494:25
[INFO] [stdout]     |
[INFO] [stdout] 494 |                 Ok(Some(try!(ser.visit_tuple_elt(self.tup.1))))
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> tests/derive_serialize.rs:498:25
[INFO] [stdout]     |
[INFO] [stdout] 498 |                 Ok(Some(try!(ser.visit_tuple_elt(self.tup.2))))
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> tests/derive_serialize.rs:544:25
[INFO] [stdout]     |
[INFO] [stdout] 544 |                 Ok(Some(try!(ser.visit_struct_variant_elt((self.tup.0).0, (self.tup.0).1))))
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> tests/derive_serialize.rs:548:25
[INFO] [stdout]     |
[INFO] [stdout] 548 |                 Ok(Some(try!(ser.visit_struct_variant_elt((self.tup.1).0, (self.tup.1).1))))
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> tests/derive_serialize.rs:552:25
[INFO] [stdout]     |
[INFO] [stdout] 552 |                 Ok(Some(try!(ser.visit_struct_variant_elt((self.tup.2).0, (self.tup.2).1))))
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]    --> src/lib.rs:524:1
[INFO] [stdout]     |
[INFO] [stdout] 524 | #[macro_use] extern crate parse_generics_shim;
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> tests/derive_serialize.rs:263:21
[INFO] [stdout]     |
[INFO] [stdout] 263 |                       try!(ser.visit_unit_struct(stringify!($name)));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] ...
[INFO] [stdout] 589 | / custom_derive! {
[INFO] [stdout] 590 | |     #[derive(Serialize)]
[INFO] [stdout] 591 | |     struct StructA;
[INFO] [stdout] 592 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> tests/derive_serialize.rs:371:53
[INFO] [stdout]     |
[INFO] [stdout] 371 |                                               Ok(Some(try!(ser.visit_struct_elt(stringify!($fname), &self.ptr.$fname))))
[INFO] [stdout]     |                                                       ^^^
[INFO] [stdout] ...
[INFO] [stdout] 604 | / custom_derive! {
[INFO] [stdout] 605 | |     #[derive(Serialize)]
[INFO] [stdout] 606 | |     struct StructD {
[INFO] [stdout] 607 | |         /// The red stuff.
[INFO] [stdout] ...   |
[INFO] [stdout] 611 | |     }
[INFO] [stdout] 612 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> tests/derive_serialize.rs:371:53
[INFO] [stdout]     |
[INFO] [stdout] 371 |                                               Ok(Some(try!(ser.visit_struct_elt(stringify!($fname), &self.ptr.$fname))))
[INFO] [stdout]     |                                                       ^^^
[INFO] [stdout] ...
[INFO] [stdout] 614 | / custom_derive! {
[INFO] [stdout] 615 | |     #[derive(Clone, Serialize)]
[INFO] [stdout] 616 | |     struct StructE<T> {
[INFO] [stdout] 617 | |         /// The red stuff.
[INFO] [stdout] ...   |
[INFO] [stdout] 621 | |     }
[INFO] [stdout] 622 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> tests/derive_serialize.rs:634:55
[INFO] [stdout]     |
[INFO] [stdout] 634 |     if false { assert_ser!({let _x: EnumA = panic!(); _x}, "!"); }
[INFO] [stdout]     |                                             --------  ^^ unreachable expression
[INFO] [stdout]     |                                             |
[INFO] [stdout]     |                                             any code following this expression is unreachable
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.52s
[INFO] running `Command { std: "docker" "inspect" "d2ab5d4218f57435fda134d82a83bdf7a0e78b6469215ec1b662f70380bcc8e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2ab5d4218f57435fda134d82a83bdf7a0e78b6469215ec1b662f70380bcc8e8", kill_on_drop: false }`
[INFO] [stdout] d2ab5d4218f57435fda134d82a83bdf7a0e78b6469215ec1b662f70380bcc8e8
