[INFO] fetching crate core-serde-json 0.1.0...
[INFO] testing core-serde-json-0.1.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate core-serde-json 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] removed /workspace/builds/worker-5-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate core-serde-json 0.1.0
[INFO] finished tweaking crates.io crate core-serde-json 0.1.0
[INFO] tweaked toml for crates.io crate core-serde-json 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate core-serde-json 0.1.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 17 packages to latest compatible versions
[INFO] [stderr]       Adding heapless v0.5.6 (available: v0.9.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded as-slice v0.1.5
[INFO] [stderr]   Downloaded generic-array v0.13.3
[INFO] [stderr]   Downloaded heapless v0.5.6
[INFO] [stderr]   Downloaded generic-array v0.12.4
[INFO] [stderr]   Downloaded hash32 v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9205b7a837ebc46eb66042156c5534ab9d6cd58f5eb2a12067a11c57ff03a1ad
[INFO] running `Command { std: "docker" "start" "-a" "9205b7a837ebc46eb66042156c5534ab9d6cd58f5eb2a12067a11c57ff03a1ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9205b7a837ebc46eb66042156c5534ab9d6cd58f5eb2a12067a11c57ff03a1ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9205b7a837ebc46eb66042156c5534ab9d6cd58f5eb2a12067a11c57ff03a1ad", kill_on_drop: false }`
[INFO] [stdout] 9205b7a837ebc46eb66042156c5534ab9d6cd58f5eb2a12067a11c57ff03a1ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4d8269e923251f65ddd9a6edde37d4a21d24e6869029502f55716eebce0fd44
[INFO] running `Command { std: "docker" "start" "-a" "e4d8269e923251f65ddd9a6edde37d4a21d24e6869029502f55716eebce0fd44", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling heapless v0.5.6
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling generic-array v0.13.3
[INFO] [stderr]    Compiling generic-array v0.12.4
[INFO] [stderr]    Compiling hash32 v0.1.1
[INFO] [stderr]    Compiling as-slice v0.1.5
[INFO] [stderr]    Compiling core-serde-json v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/de/mod.rs:83:20
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn new(slice: &'a [u8]) -> Deserializer<'_> {
[INFO] [stdout]    |                    ^^                       -- the same lifetime is elided here
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` implied by `#[warn(warnings)]`
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 83 -     fn new(slice: &'a [u8]) -> Deserializer<'_> {
[INFO] [stdout] 83 +     fn new(slice: &'a [u8]) -> Deserializer<'a> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 4]` does not permit being left uninitialized
[INFO] [stdout]    --> src/ser/mod.rs:103:42
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          this code causes undefined behavior when executed
[INFO] [stdout]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 152 |         serialize_signed!(self, 4, v, i8, u8)
[INFO] [stdout]     |         ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: `#[warn(invalid_value)]` implied by `#[warn(warnings)]`
[INFO] [stdout]     = note: this warning originates in the macro `serialize_signed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 6]` does not permit being left uninitialized
[INFO] [stdout]    --> src/ser/mod.rs:103:42
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          this code causes undefined behavior when executed
[INFO] [stdout]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 157 |         serialize_signed!(self, 6, v, i16, u16)
[INFO] [stdout]     |         --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: this warning originates in the macro `serialize_signed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 11]` does not permit being left uninitialized
[INFO] [stdout]    --> src/ser/mod.rs:103:42
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          this code causes undefined behavior when executed
[INFO] [stdout]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 162 |         serialize_signed!(self, 11, v, i32, u32)
[INFO] [stdout]     |         ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: this warning originates in the macro `serialize_signed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 20]` does not permit being left uninitialized
[INFO] [stdout]    --> src/ser/mod.rs:103:42
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          this code causes undefined behavior when executed
[INFO] [stdout]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 167 |         serialize_signed!(self, 20, v, i64, u64)
[INFO] [stdout]     |         ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: this warning originates in the macro `serialize_signed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 3]` does not permit being left uninitialized
[INFO] [stdout]    --> src/ser/mod.rs:72:42
[INFO] [stdout]     |
[INFO] [stdout]  72 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          this code causes undefined behavior when executed
[INFO] [stdout]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 172 |         serialize_unsigned!(self, 3, v)
[INFO] [stdout]     |         ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: this warning originates in the macro `serialize_unsigned` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 5]` does not permit being left uninitialized
[INFO] [stdout]    --> src/ser/mod.rs:72:42
[INFO] [stdout]     |
[INFO] [stdout]  72 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          this code causes undefined behavior when executed
[INFO] [stdout]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 177 |         serialize_unsigned!(self, 5, v)
[INFO] [stdout]     |         ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: this warning originates in the macro `serialize_unsigned` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 10]` does not permit being left uninitialized
[INFO] [stdout]    --> src/ser/mod.rs:72:42
[INFO] [stdout]     |
[INFO] [stdout]  72 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          this code causes undefined behavior when executed
[INFO] [stdout]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 182 |         serialize_unsigned!(self, 10, v)
[INFO] [stdout]     |         -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: this warning originates in the macro `serialize_unsigned` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 20]` does not permit being left uninitialized
[INFO] [stdout]    --> src/ser/mod.rs:72:42
[INFO] [stdout]     |
[INFO] [stdout]  72 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          this code causes undefined behavior when executed
[INFO] [stdout]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 187 |         serialize_unsigned!(self, 20, v)
[INFO] [stdout]     |         -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: this warning originates in the macro `serialize_unsigned` (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 3.90s
[INFO] running `Command { std: "docker" "inspect" "e4d8269e923251f65ddd9a6edde37d4a21d24e6869029502f55716eebce0fd44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4d8269e923251f65ddd9a6edde37d4a21d24e6869029502f55716eebce0fd44", kill_on_drop: false }`
[INFO] [stdout] e4d8269e923251f65ddd9a6edde37d4a21d24e6869029502f55716eebce0fd44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8bdcb654534a0daa6f231f5cd93f316e33dd864461cff42a939c709519ef0381
[INFO] running `Command { std: "docker" "start" "-a" "8bdcb654534a0daa6f231f5cd93f316e33dd864461cff42a939c709519ef0381", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/de/mod.rs:83:20
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn new(slice: &'a [u8]) -> Deserializer<'_> {
[INFO] [stdout]    |                    ^^                       -- the same lifetime is elided here
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` implied by `#[warn(warnings)]`
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 83 -     fn new(slice: &'a [u8]) -> Deserializer<'_> {
[INFO] [stdout] 83 +     fn new(slice: &'a [u8]) -> Deserializer<'a> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 4]` does not permit being left uninitialized
[INFO] [stdout]    --> src/ser/mod.rs:103:42
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          this code causes undefined behavior when executed
[INFO] [stdout]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 152 |         serialize_signed!(self, 4, v, i8, u8)
[INFO] [stdout]     |         ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: `#[warn(invalid_value)]` implied by `#[warn(warnings)]`
[INFO] [stdout]     = note: this warning originates in the macro `serialize_signed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 6]` does not permit being left uninitialized
[INFO] [stdout]    --> src/ser/mod.rs:103:42
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          this code causes undefined behavior when executed
[INFO] [stdout]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 157 |         serialize_signed!(self, 6, v, i16, u16)
[INFO] [stdout]     |         --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: this warning originates in the macro `serialize_signed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 11]` does not permit being left uninitialized
[INFO] [stdout]    --> src/ser/mod.rs:103:42
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          this code causes undefined behavior when executed
[INFO] [stdout]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 162 |         serialize_signed!(self, 11, v, i32, u32)
[INFO] [stdout]     |         ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: this warning originates in the macro `serialize_signed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 20]` does not permit being left uninitialized
[INFO] [stdout]    --> src/ser/mod.rs:103:42
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          this code causes undefined behavior when executed
[INFO] [stdout]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 167 |         serialize_signed!(self, 20, v, i64, u64)
[INFO] [stdout]     |         ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: this warning originates in the macro `serialize_signed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 3]` does not permit being left uninitialized
[INFO] [stdout]    --> src/ser/mod.rs:72:42
[INFO] [stdout]     |
[INFO] [stdout]  72 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          this code causes undefined behavior when executed
[INFO] [stdout]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 172 |         serialize_unsigned!(self, 3, v)
[INFO] [stdout]     |         ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: this warning originates in the macro `serialize_unsigned` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 5]` does not permit being left uninitialized
[INFO] [stdout]    --> src/ser/mod.rs:72:42
[INFO] [stdout]     |
[INFO] [stdout]  72 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          this code causes undefined behavior when executed
[INFO] [stdout]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 177 |         serialize_unsigned!(self, 5, v)
[INFO] [stdout]     |         ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: this warning originates in the macro `serialize_unsigned` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 10]` does not permit being left uninitialized
[INFO] [stdout]    --> src/ser/mod.rs:72:42
[INFO] [stdout]     |
[INFO] [stdout]  72 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          this code causes undefined behavior when executed
[INFO] [stdout]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 182 |         serialize_unsigned!(self, 10, v)
[INFO] [stdout]     |         -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: this warning originates in the macro `serialize_unsigned` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 20]` does not permit being left uninitialized
[INFO] [stdout]    --> src/ser/mod.rs:72:42
[INFO] [stdout]     |
[INFO] [stdout]  72 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          this code causes undefined behavior when executed
[INFO] [stdout]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 187 |         serialize_unsigned!(self, 20, v)
[INFO] [stdout]     |         -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: this warning originates in the macro `serialize_unsigned` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling core-serde-json v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/de/mod.rs:83:20
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn new(slice: &'a [u8]) -> Deserializer<'_> {
[INFO] [stdout]    |                    ^^                       -- the same lifetime is elided here
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` implied by `#[warn(warnings)]`
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 83 -     fn new(slice: &'a [u8]) -> Deserializer<'_> {
[INFO] [stdout] 83 +     fn new(slice: &'a [u8]) -> Deserializer<'a> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 4]` does not permit being left uninitialized
[INFO] [stdout]    --> src/ser/mod.rs:103:42
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          this code causes undefined behavior when executed
[INFO] [stdout]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 152 |         serialize_signed!(self, 4, v, i8, u8)
[INFO] [stdout]     |         ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: `#[warn(invalid_value)]` implied by `#[warn(warnings)]`
[INFO] [stdout]     = note: this warning originates in the macro `serialize_signed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 6]` does not permit being left uninitialized
[INFO] [stdout]    --> src/ser/mod.rs:103:42
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          this code causes undefined behavior when executed
[INFO] [stdout]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 157 |         serialize_signed!(self, 6, v, i16, u16)
[INFO] [stdout]     |         --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: this warning originates in the macro `serialize_signed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 11]` does not permit being left uninitialized
[INFO] [stdout]    --> src/ser/mod.rs:103:42
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          this code causes undefined behavior when executed
[INFO] [stdout]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 162 |         serialize_signed!(self, 11, v, i32, u32)
[INFO] [stdout]     |         ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: this warning originates in the macro `serialize_signed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 20]` does not permit being left uninitialized
[INFO] [stdout]    --> src/ser/mod.rs:103:42
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          this code causes undefined behavior when executed
[INFO] [stdout]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 167 |         serialize_signed!(self, 20, v, i64, u64)
[INFO] [stdout]     |         ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: this warning originates in the macro `serialize_signed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 3]` does not permit being left uninitialized
[INFO] [stdout]    --> src/ser/mod.rs:72:42
[INFO] [stdout]     |
[INFO] [stdout]  72 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          this code causes undefined behavior when executed
[INFO] [stdout]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 172 |         serialize_unsigned!(self, 3, v)
[INFO] [stdout]     |         ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: this warning originates in the macro `serialize_unsigned` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 5]` does not permit being left uninitialized
[INFO] [stdout]    --> src/ser/mod.rs:72:42
[INFO] [stdout]     |
[INFO] [stdout]  72 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          this code causes undefined behavior when executed
[INFO] [stdout]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 177 |         serialize_unsigned!(self, 5, v)
[INFO] [stdout]     |         ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: this warning originates in the macro `serialize_unsigned` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 10]` does not permit being left uninitialized
[INFO] [stdout]    --> src/ser/mod.rs:72:42
[INFO] [stdout]     |
[INFO] [stdout]  72 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          this code causes undefined behavior when executed
[INFO] [stdout]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 182 |         serialize_unsigned!(self, 10, v)
[INFO] [stdout]     |         -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: this warning originates in the macro `serialize_unsigned` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 20]` does not permit being left uninitialized
[INFO] [stdout]    --> src/ser/mod.rs:72:42
[INFO] [stdout]     |
[INFO] [stdout]  72 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          this code causes undefined behavior when executed
[INFO] [stdout]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout] ...
[INFO] [stdout] 187 |         serialize_unsigned!(self, 20, v)
[INFO] [stdout]     |         -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: integers must be initialized
[INFO] [stdout]     = note: this warning originates in the macro `serialize_unsigned` (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 7.36s
[INFO] running `Command { std: "docker" "inspect" "8bdcb654534a0daa6f231f5cd93f316e33dd864461cff42a939c709519ef0381", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bdcb654534a0daa6f231f5cd93f316e33dd864461cff42a939c709519ef0381", kill_on_drop: false }`
[INFO] [stdout] 8bdcb654534a0daa6f231f5cd93f316e33dd864461cff42a939c709519ef0381
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2959a20418f983b6100a4224390ff92305f5db810b0d5e0f4c43ca4fa9187569
[INFO] running `Command { std: "docker" "start" "-a" "2959a20418f983b6100a4224390ff92305f5db810b0d5e0f4c43ca4fa9187569", kill_on_drop: false }`
[INFO] [stderr] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stderr]   --> src/de/mod.rs:83:20
[INFO] [stderr]    |
[INFO] [stderr] 83 |     fn new(slice: &'a [u8]) -> Deserializer<'_> {
[INFO] [stderr]    |                    ^^                       -- the same lifetime is elided here
[INFO] [stderr]    |                    |
[INFO] [stderr]    |                    the lifetime is named here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 | #![deny(warnings)]
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` implied by `#[warn(warnings)]`
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]    |
[INFO] [stderr] 83 -     fn new(slice: &'a [u8]) -> Deserializer<'_> {
[INFO] [stderr] 83 +     fn new(slice: &'a [u8]) -> Deserializer<'a> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: the type `[u8; 4]` does not permit being left uninitialized
[INFO] [stderr]    --> src/ser/mod.rs:103:42
[INFO] [stderr]     |
[INFO] [stderr] 103 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                                          |
[INFO] [stderr]     |                                          this code causes undefined behavior when executed
[INFO] [stderr]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stderr] ...
[INFO] [stderr] 152 |         serialize_signed!(self, 4, v, i8, u8)
[INFO] [stderr]     |         ------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: integers must be initialized
[INFO] [stderr]     = note: `#[warn(invalid_value)]` implied by `#[warn(warnings)]`
[INFO] [stderr]     = note: this warning originates in the macro `serialize_signed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: the type `[u8; 6]` does not permit being left uninitialized
[INFO] [stderr]    --> src/ser/mod.rs:103:42
[INFO] [stderr]     |
[INFO] [stderr] 103 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                                          |
[INFO] [stderr]     |                                          this code causes undefined behavior when executed
[INFO] [stderr]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stderr] ...
[INFO] [stderr] 157 |         serialize_signed!(self, 6, v, i16, u16)
[INFO] [stderr]     |         --------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: integers must be initialized
[INFO] [stderr]     = note: this warning originates in the macro `serialize_signed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: the type `[u8; 11]` does not permit being left uninitialized
[INFO] [stderr]    --> src/ser/mod.rs:103:42
[INFO] [stderr]     |
[INFO] [stderr] 103 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                                          |
[INFO] [stderr]     |                                          this code causes undefined behavior when executed
[INFO] [stderr]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stderr] ...
[INFO] [stderr] 162 |         serialize_signed!(self, 11, v, i32, u32)
[INFO] [stderr]     |         ---------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: integers must be initialized
[INFO] [stderr]     = note: this warning originates in the macro `serialize_signed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: the type `[u8; 20]` does not permit being left uninitialized
[INFO] [stderr]    --> src/ser/mod.rs:103:42
[INFO] [stderr]     |
[INFO] [stderr] 103 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                                          |
[INFO] [stderr]     |                                          this code causes undefined behavior when executed
[INFO] [stderr]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stderr] ...
[INFO] [stderr] 167 |         serialize_signed!(self, 20, v, i64, u64)
[INFO] [stderr]     |         ---------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: integers must be initialized
[INFO] [stderr]     = note: this warning originates in the macro `serialize_signed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: the type `[u8; 3]` does not permit being left uninitialized
[INFO] [stderr]    --> src/ser/mod.rs:72:42
[INFO] [stderr]     |
[INFO] [stderr]  72 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                                          |
[INFO] [stderr]     |                                          this code causes undefined behavior when executed
[INFO] [stderr]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stderr] ...
[INFO] [stderr] 172 |         serialize_unsigned!(self, 3, v)
[INFO] [stderr]     |         ------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: integers must be initialized
[INFO] [stderr]     = note: this warning originates in the macro `serialize_unsigned` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: the type `[u8; 5]` does not permit being left uninitialized
[INFO] [stderr]    --> src/ser/mod.rs:72:42
[INFO] [stderr]     |
[INFO] [stderr]  72 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                                          |
[INFO] [stderr]     |                                          this code causes undefined behavior when executed
[INFO] [stderr]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stderr] ...
[INFO] [stderr] 177 |         serialize_unsigned!(self, 5, v)
[INFO] [stderr]     |         ------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: integers must be initialized
[INFO] [stderr]     = note: this warning originates in the macro `serialize_unsigned` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: the type `[u8; 10]` does not permit being left uninitialized
[INFO] [stderr]    --> src/ser/mod.rs:72:42
[INFO] [stderr]     |
[INFO] [stderr]  72 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                                          |
[INFO] [stderr]     |                                          this code causes undefined behavior when executed
[INFO] [stderr]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stderr] ...
[INFO] [stderr] 182 |         serialize_unsigned!(self, 10, v)
[INFO] [stderr]     |         -------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: integers must be initialized
[INFO] [stderr]     = note: this warning originates in the macro `serialize_unsigned` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: the type `[u8; 20]` does not permit being left uninitialized
[INFO] [stderr]    --> src/ser/mod.rs:72:42
[INFO] [stderr]     |
[INFO] [stderr]  72 |         let mut buf: [u8; $N] = unsafe { mem::MaybeUninit::uninit().assume_init() };
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                                          |
[INFO] [stderr]     |                                          this code causes undefined behavior when executed
[INFO] [stderr]     |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stderr] ...
[INFO] [stderr] 187 |         serialize_unsigned!(self, 20, v)
[INFO] [stderr]     |         -------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: integers must be initialized
[INFO] [stderr]     = note: this warning originates in the macro `serialize_unsigned` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `core-serde-json` (lib) generated 9 warnings
[INFO] [stderr] warning: `core-serde-json` (lib test) generated 9 warnings (9 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/core_serde_json-6e9f8940711499c0)
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test de::tests::bool ... ok
[INFO] [stdout] test de::tests::array ... ok
[INFO] [stdout] test de::tests::enum_clike ... ok
[INFO] [stdout] test de::tests::struct_bool ... ok
[INFO] [stdout] test de::tests::struct_i8 ... ok
[INFO] [stdout] test de::tests::struct_option ... ok
[INFO] [stdout] test de::tests::wot ... ignored
[INFO] [stdout] test de::tests::struct_u8 ... ok
[INFO] [stdout] test ser::tests::array ... ok
[INFO] [stdout] test ser::tests::enum_ ... ok
[INFO] [stdout] test ser::tests::bool ... ok
[INFO] [stdout] test ser::tests::struct_ ... ok
[INFO] [stdout] test ser::tests::struct_bool ... ok
[INFO] [stdout] test ser::tests::struct_i8 ... ok
[INFO] [stdout] test ser::tests::struct_option ... ok
[INFO] [stdout] test ser::tests::struct_u8 ... ok
[INFO] [stdout] test ser::tests::str ... ok
[INFO] [stderr]    Doc-tests core_serde_json
[INFO] [stdout] test de::tests::str ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[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] running `Command { std: "docker" "inspect" "2959a20418f983b6100a4224390ff92305f5db810b0d5e0f4c43ca4fa9187569", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2959a20418f983b6100a4224390ff92305f5db810b0d5e0f4c43ca4fa9187569", kill_on_drop: false }`
[INFO] [stdout] 2959a20418f983b6100a4224390ff92305f5db810b0d5e0f4c43ca4fa9187569
