[INFO] fetching crate tokio-serde-json 0.3.0...
[INFO] testing tokio-serde-json-0.3.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate tokio-serde-json 0.3.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate tokio-serde-json 0.3.0
[INFO] finished tweaking crates.io crate tokio-serde-json 0.3.0
[INFO] tweaked toml for crates.io crate tokio-serde-json 0.3.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tokio-serde-json 0.3.0 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tokio-serde-json 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fe441524d7b0532b3619052c5de101ccb851ae8c27f376574cb1fdc570a81db2
[INFO] running `Command { std: "docker" "start" "-a" "fe441524d7b0532b3619052c5de101ccb851ae8c27f376574cb1fdc570a81db2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe441524d7b0532b3619052c5de101ccb851ae8c27f376574cb1fdc570a81db2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe441524d7b0532b3619052c5de101ccb851ae8c27f376574cb1fdc570a81db2", kill_on_drop: false }`
[INFO] [stdout] fe441524d7b0532b3619052c5de101ccb851ae8c27f376574cb1fdc570a81db2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0937edf6f35ecad70ec28786acb2a2ab568a9011c32ed3388438f46351fbc24f
[INFO] running `Command { std: "docker" "start" "-a" "0937edf6f35ecad70ec28786acb2a2ab568a9011c32ed3388438f46351fbc24f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling futures-sink-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling pin-project-internal v0.4.2
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling serde_json v1.0.41
[INFO] [stderr]    Compiling pin-project v0.4.2
[INFO] [stderr]    Compiling tokio-serde v0.4.0
[INFO] [stderr]    Compiling tokio-serde-json v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/lib.rs:81:1
[INFO] [stdout]    |
[INFO] [stdout] 81 | #[pin_project]
[INFO] [stdout]    | ^-------------
[INFO] [stdout]    | |
[INFO] [stdout]    | `Unpin` is not local
[INFO] [stdout]    | move the `impl` block outside of this function `__unpin_scope_ReadJson`
[INFO] [stdout] 82 | pub struct ReadJson<T, U> {
[INFO] [stdout]    |            -------- `ReadJson` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `::pin_project::__private::__PinProjectAutoImplUnpin` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `::pin_project::__private::__PinProjectAutoImplUnpin` may come from an old version of the `pin_project_internal` crate, try updating your dependency with `cargo update -p pin_project_internal`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `::pin_project::__private::__PinProjectAutoImplUnpin` which comes from the expansion of the attribute macro `pin_project` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/lib.rs:81:1
[INFO] [stdout]    |
[INFO] [stdout] 81 | #[pin_project]
[INFO] [stdout]    | ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]    = note: this warning originates in the attribute macro `pin_project` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/lib.rs:98:1
[INFO] [stdout]    |
[INFO] [stdout] 98 | #[pin_project]
[INFO] [stdout]    | ^-------------
[INFO] [stdout]    | |
[INFO] [stdout]    | `Unpin` is not local
[INFO] [stdout]    | move the `impl` block outside of this function `__unpin_scope_WriteJson`
[INFO] [stdout] 99 | pub struct WriteJson<T, U> {
[INFO] [stdout]    |            --------- `WriteJson` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `::pin_project::__private::__PinProjectAutoImplUnpin` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `::pin_project::__private::__PinProjectAutoImplUnpin` may come from an old version of the `pin_project_internal` crate, try updating your dependency with `cargo update -p pin_project_internal`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: this warning originates in the derive macro `::pin_project::__private::__PinProjectAutoImplUnpin` which comes from the expansion of the attribute macro `pin_project` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/lib.rs:98:1
[INFO] [stdout]    |
[INFO] [stdout] 98 | #[pin_project]
[INFO] [stdout]    | ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the attribute macro `pin_project` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.07s
[INFO] running `Command { std: "docker" "inspect" "0937edf6f35ecad70ec28786acb2a2ab568a9011c32ed3388438f46351fbc24f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0937edf6f35ecad70ec28786acb2a2ab568a9011c32ed3388438f46351fbc24f", kill_on_drop: false }`
[INFO] [stdout] 0937edf6f35ecad70ec28786acb2a2ab568a9011c32ed3388438f46351fbc24f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9854d9b8c322be997db91cbd9f4859a2d3252a93b0198c29ed7d3f9d8acd60a4
[INFO] running `Command { std: "docker" "start" "-a" "9854d9b8c322be997db91cbd9f4859a2d3252a93b0198c29ed7d3f9d8acd60a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling smallvec v0.6.10
[INFO] [stderr]    Compiling tracing-attributes v0.1.4
[INFO] [stderr]    Compiling tokio-macros v0.2.0-alpha.6
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/lib.rs:81:1
[INFO] [stdout]    |
[INFO] [stdout] 81 | #[pin_project]
[INFO] [stdout]    | ^-------------
[INFO] [stdout]    | |
[INFO] [stdout]    | `Unpin` is not local
[INFO] [stdout]    | move the `impl` block outside of this function `__unpin_scope_ReadJson`
[INFO] [stdout] 82 | pub struct ReadJson<T, U> {
[INFO] [stdout]    |            -------- `ReadJson` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `::pin_project::__private::__PinProjectAutoImplUnpin` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `::pin_project::__private::__PinProjectAutoImplUnpin` may come from an old version of the `pin_project_internal` crate, try updating your dependency with `cargo update -p pin_project_internal`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `::pin_project::__private::__PinProjectAutoImplUnpin` which comes from the expansion of the attribute macro `pin_project` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/lib.rs:81:1
[INFO] [stdout]    |
[INFO] [stdout] 81 | #[pin_project]
[INFO] [stdout]    | ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]    = note: this warning originates in the attribute macro `pin_project` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/lib.rs:98:1
[INFO] [stdout]    |
[INFO] [stdout] 98 | #[pin_project]
[INFO] [stdout]    | ^-------------
[INFO] [stdout]    | |
[INFO] [stdout]    | `Unpin` is not local
[INFO] [stdout]    | move the `impl` block outside of this function `__unpin_scope_WriteJson`
[INFO] [stdout] 99 | pub struct WriteJson<T, U> {
[INFO] [stdout]    |            --------- `WriteJson` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `::pin_project::__private::__PinProjectAutoImplUnpin` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `::pin_project::__private::__PinProjectAutoImplUnpin` may come from an old version of the `pin_project_internal` crate, try updating your dependency with `cargo update -p pin_project_internal`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: this warning originates in the derive macro `::pin_project::__private::__PinProjectAutoImplUnpin` which comes from the expansion of the attribute macro `pin_project` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/lib.rs:98:1
[INFO] [stdout]    |
[INFO] [stdout] 98 | #[pin_project]
[INFO] [stdout]    | ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the attribute macro `pin_project` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling lock_api v0.3.1
[INFO] [stderr]    Compiling tokio-sync v0.2.0-alpha.6
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling tracing-core v0.1.6
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling tokio-io v0.2.0-alpha.6
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling tokio-codec v0.2.0-alpha.6
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling tracing v0.1.9
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling tokio-executor v0.2.0-alpha.6
[INFO] [stderr]    Compiling tokio-fs v0.2.0-alpha.6
[INFO] [stderr]    Compiling tokio-timer v0.3.0-alpha.6
[INFO] [stderr]    Compiling tokio-net v0.2.0-alpha.6
[INFO] [stderr]    Compiling tokio v0.2.0-alpha.6
[INFO] [stderr]    Compiling tokio-serde-json v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/lib.rs:81:1
[INFO] [stdout]    |
[INFO] [stdout] 81 | #[pin_project]
[INFO] [stdout]    | ^-------------
[INFO] [stdout]    | |
[INFO] [stdout]    | `Unpin` is not local
[INFO] [stdout]    | move the `impl` block outside of this function `__unpin_scope_ReadJson`
[INFO] [stdout] 82 | pub struct ReadJson<T, U> {
[INFO] [stdout]    |            -------- `ReadJson` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `::pin_project::__private::__PinProjectAutoImplUnpin` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `::pin_project::__private::__PinProjectAutoImplUnpin` may come from an old version of the `pin_project_internal` crate, try updating your dependency with `cargo update -p pin_project_internal`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `::pin_project::__private::__PinProjectAutoImplUnpin` which comes from the expansion of the attribute macro `pin_project` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/lib.rs:81:1
[INFO] [stdout]    |
[INFO] [stdout] 81 | #[pin_project]
[INFO] [stdout]    | ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]    = note: this warning originates in the attribute macro `pin_project` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/lib.rs:98:1
[INFO] [stdout]    |
[INFO] [stdout] 98 | #[pin_project]
[INFO] [stdout]    | ^-------------
[INFO] [stdout]    | |
[INFO] [stdout]    | `Unpin` is not local
[INFO] [stdout]    | move the `impl` block outside of this function `__unpin_scope_WriteJson`
[INFO] [stdout] 99 | pub struct WriteJson<T, U> {
[INFO] [stdout]    |            --------- `WriteJson` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `::pin_project::__private::__PinProjectAutoImplUnpin` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `::pin_project::__private::__PinProjectAutoImplUnpin` may come from an old version of the `pin_project_internal` crate, try updating your dependency with `cargo update -p pin_project_internal`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: this warning originates in the derive macro `::pin_project::__private::__PinProjectAutoImplUnpin` which comes from the expansion of the attribute macro `pin_project` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/lib.rs:98:1
[INFO] [stdout]    |
[INFO] [stdout] 98 | #[pin_project]
[INFO] [stdout]    | ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the attribute macro `pin_project` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 7.72s
[INFO] running `Command { std: "docker" "inspect" "9854d9b8c322be997db91cbd9f4859a2d3252a93b0198c29ed7d3f9d8acd60a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9854d9b8c322be997db91cbd9f4859a2d3252a93b0198c29ed7d3f9d8acd60a4", kill_on_drop: false }`
[INFO] [stdout] 9854d9b8c322be997db91cbd9f4859a2d3252a93b0198c29ed7d3f9d8acd60a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d51eed5e3c1b8a1c83989c1ccd829a51eeac9b03d614b05f00067dba637b8e8b
[INFO] running `Command { std: "docker" "start" "-a" "d51eed5e3c1b8a1c83989c1ccd829a51eeac9b03d614b05f00067dba637b8e8b", kill_on_drop: false }`
[INFO] [stderr] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stderr]   --> src/lib.rs:81:1
[INFO] [stderr]    |
[INFO] [stderr] 81 | #[pin_project]
[INFO] [stderr]    | ^-------------
[INFO] [stderr]    | |
[INFO] [stderr]    | `Unpin` is not local
[INFO] [stderr]    | move the `impl` block outside of this function `__unpin_scope_ReadJson`
[INFO] [stderr] 82 | pub struct ReadJson<T, U> {
[INFO] [stderr]    |            -------- `ReadJson` is not local
[INFO] [stderr]    |
[INFO] [stderr]    = note: the derive macro `::pin_project::__private::__PinProjectAutoImplUnpin` defines the non-local `impl`, and may need to be changed
[INFO] [stderr]    = note: the derive macro `::pin_project::__private::__PinProjectAutoImplUnpin` may come from an old version of the `pin_project_internal` crate, try updating your dependency with `cargo update -p pin_project_internal`
[INFO] [stderr]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stderr]    = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stderr]    = note: this warning originates in the derive macro `::pin_project::__private::__PinProjectAutoImplUnpin` which comes from the expansion of the attribute macro `pin_project` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> src/lib.rs:81:1
[INFO] [stderr]    |
[INFO] [stderr] 81 | #[pin_project]
[INFO] [stderr]    | ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr]    = note: this warning originates in the attribute macro `pin_project` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stderr]   --> src/lib.rs:98:1
[INFO] [stderr]    |
[INFO] [stderr] 98 | #[pin_project]
[INFO] [stderr]    | ^-------------
[INFO] [stderr]    | |
[INFO] [stderr]    | `Unpin` is not local
[INFO] [stderr]    | move the `impl` block outside of this function `__unpin_scope_WriteJson`
[INFO] [stderr] 99 | pub struct WriteJson<T, U> {
[INFO] [stderr]    |            --------- `WriteJson` is not local
[INFO] [stderr]    |
[INFO] [stderr]    = note: the derive macro `::pin_project::__private::__PinProjectAutoImplUnpin` defines the non-local `impl`, and may need to be changed
[INFO] [stderr]    = note: the derive macro `::pin_project::__private::__PinProjectAutoImplUnpin` may come from an old version of the `pin_project_internal` crate, try updating your dependency with `cargo update -p pin_project_internal`
[INFO] [stderr]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stderr]    = note: this warning originates in the derive macro `::pin_project::__private::__PinProjectAutoImplUnpin` which comes from the expansion of the attribute macro `pin_project` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> src/lib.rs:98:1
[INFO] [stderr]    |
[INFO] [stderr] 98 | #[pin_project]
[INFO] [stderr]    | ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the attribute macro `pin_project` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `tokio-serde-json` (lib) generated 4 warnings
[INFO] [stderr] warning: `tokio-serde-json` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tokio_serde_json-70acddca4f9e6f6c)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests tokio_serde_json
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 15) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.13s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d51eed5e3c1b8a1c83989c1ccd829a51eeac9b03d614b05f00067dba637b8e8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d51eed5e3c1b8a1c83989c1ccd829a51eeac9b03d614b05f00067dba637b8e8b", kill_on_drop: false }`
[INFO] [stdout] d51eed5e3c1b8a1c83989c1ccd829a51eeac9b03d614b05f00067dba637b8e8b