[INFO] fetching crate jsonway 2.0.0...
[INFO] checking jsonway-2.0.0 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate jsonway 2.0.0 into /workspace/builds/worker-54/source
[INFO] validating manifest of crates.io crate jsonway 2.0.0 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jsonway 2.0.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate jsonway 2.0.0
[INFO] tweaked toml for crates.io crate jsonway 2.0.0 written to /workspace/builds/worker-54/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "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-2021-10-15" "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-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a9f3c568df62723c70ccaf8a9c5b950cc13efaa846ddf6c674cbdaf2af796aa4
[INFO] running `Command { std: "docker" "start" "-a" "a9f3c568df62723c70ccaf8a9c5b950cc13efaa846ddf6c674cbdaf2af796aa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9f3c568df62723c70ccaf8a9c5b950cc13efaa846ddf6c674cbdaf2af796aa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9f3c568df62723c70ccaf8a9c5b950cc13efaa846ddf6c674cbdaf2af796aa4", kill_on_drop: false }`
[INFO] [stdout] a9f3c568df62723c70ccaf8a9c5b950cc13efaa846ddf6c674cbdaf2af796aa4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4f738e0bbce4e7ef8b8a32fa0e7742d9ab179b74b5092ea0dd738352b3faf59
[INFO] running `Command { std: "docker" "start" "-a" "f4f738e0bbce4e7ef8b8a32fa0e7742d9ab179b74b5092ea0dd738352b3faf59", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking jsonway v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/serializer.rs:36:21
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn build(&self, &mut object_builder::ObjectBuilder);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut object_builder::ObjectBuilder`
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:2:9
[INFO] [stdout]    |
[INFO] [stdout] 2  | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` implied by `#[warn(warnings)]`
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/serializer.rs:36:21
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn build(&self, &mut object_builder::ObjectBuilder);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut object_builder::ObjectBuilder`
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:2:9
[INFO] [stdout]    |
[INFO] [stdout] 2  | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` implied by `#[warn(warnings)]`
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/serializer.rs:85:21
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn build(&self, &T, &mut object_builder::ObjectBuilder);
[INFO] [stdout]    |                     ^^ help: try naming the parameter or explicitly ignoring it: `_: &T`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/serializer.rs:85:25
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn build(&self, &T, &mut object_builder::ObjectBuilder);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut object_builder::ObjectBuilder`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/serializer.rs:154:21
[INFO] [stdout]     |
[INFO] [stdout] 154 |     fn build(&self, &T, &S, &mut object_builder::ObjectBuilder);
[INFO] [stdout]     |                     ^^ help: try naming the parameter or explicitly ignoring it: `_: &T`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/serializer.rs:154:25
[INFO] [stdout]     |
[INFO] [stdout] 154 |     fn build(&self, &T, &S, &mut object_builder::ObjectBuilder);
[INFO] [stdout]     |                         ^^ help: try naming the parameter or explicitly ignoring it: `_: &S`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/serializer.rs:154:29
[INFO] [stdout]     |
[INFO] [stdout] 154 |     fn build(&self, &T, &S, &mut object_builder::ObjectBuilder);
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut object_builder::ObjectBuilder`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/serializer.rs:85:21
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn build(&self, &T, &mut object_builder::ObjectBuilder);
[INFO] [stdout]    |                     ^^ help: try naming the parameter or explicitly ignoring it: `_: &T`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/serializer.rs:85:25
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn build(&self, &T, &mut object_builder::ObjectBuilder);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut object_builder::ObjectBuilder`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/serializer.rs:154:21
[INFO] [stdout]     |
[INFO] [stdout] 154 |     fn build(&self, &T, &S, &mut object_builder::ObjectBuilder);
[INFO] [stdout]     |                     ^^ help: try naming the parameter or explicitly ignoring it: `_: &T`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/serializer.rs:154:25
[INFO] [stdout]     |
[INFO] [stdout] 154 |     fn build(&self, &T, &S, &mut object_builder::ObjectBuilder);
[INFO] [stdout]     |                         ^^ help: try naming the parameter or explicitly ignoring it: `_: &S`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/serializer.rs:154:29
[INFO] [stdout]     |
[INFO] [stdout] 154 |     fn build(&self, &T, &S, &mut object_builder::ObjectBuilder);
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut object_builder::ObjectBuilder`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]  --> src/array_serializer.rs:7:21
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn build(&self, &mut array_builder::ArrayBuilder);
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut array_builder::ArrayBuilder`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]  --> src/array_serializer.rs:7:21
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn build(&self, &mut array_builder::ArrayBuilder);
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut array_builder::ArrayBuilder`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 1.92s
[INFO] running `Command { std: "docker" "inspect" "f4f738e0bbce4e7ef8b8a32fa0e7742d9ab179b74b5092ea0dd738352b3faf59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4f738e0bbce4e7ef8b8a32fa0e7742d9ab179b74b5092ea0dd738352b3faf59", kill_on_drop: false }`
[INFO] [stdout] f4f738e0bbce4e7ef8b8a32fa0e7742d9ab179b74b5092ea0dd738352b3faf59
