[INFO] fetching crate transproto 0.1.0...
[INFO] building transproto-0.1.0 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate transproto 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate transproto 0.1.0 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate transproto 0.1.0
[INFO] finished tweaking crates.io crate transproto 0.1.0
[INFO] tweaked toml for crates.io crate transproto 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] [stderr]       Adding base64 v0.13.1 (available: v0.22.1)
[INFO] [stderr]       Adding dtoa v0.4.8 (available: v1.0.9)
[INFO] [stderr]       Adding itoa v0.4.8 (available: v1.0.14)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f8c18abeb3cdcf8aff26f28d5cbfcc1e016ce59f832d820bf23be0da47168561
[INFO] running `Command { std: "docker" "start" "-a" "f8c18abeb3cdcf8aff26f28d5cbfcc1e016ce59f832d820bf23be0da47168561", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8c18abeb3cdcf8aff26f28d5cbfcc1e016ce59f832d820bf23be0da47168561", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8c18abeb3cdcf8aff26f28d5cbfcc1e016ce59f832d820bf23be0da47168561", kill_on_drop: false }`
[INFO] [stdout] f8c18abeb3cdcf8aff26f28d5cbfcc1e016ce59f832d820bf23be0da47168561
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e28fd041d805a1ebe018713bc1f619a9a2aa339bfbccaa6ac304aba0fb83129
[INFO] running `Command { std: "docker" "start" "-a" "3e28fd041d805a1ebe018713bc1f619a9a2aa339bfbccaa6ac304aba0fb83129", kill_on_drop: false }`
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling dtoa v0.4.8
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling transproto v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the type `[u8; 10]` does not permit being left uninitialized
[INFO] [stdout]   --> src/proto.rs:82:54
[INFO] [stdout]    |
[INFO] [stdout] 82 |                 let mut buf: [u8; MAX_VARINT_SIZE] = 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]    = note: integers must be initialized
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "3e28fd041d805a1ebe018713bc1f619a9a2aa339bfbccaa6ac304aba0fb83129", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e28fd041d805a1ebe018713bc1f619a9a2aa339bfbccaa6ac304aba0fb83129", kill_on_drop: false }`
[INFO] [stdout] 3e28fd041d805a1ebe018713bc1f619a9a2aa339bfbccaa6ac304aba0fb83129
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67b47762a6fbf99a9bc7ddf4df4c928eede74bf5596a4c95b783a88a6bb8473b
[INFO] running `Command { std: "docker" "start" "-a" "67b47762a6fbf99a9bc7ddf4df4c928eede74bf5596a4c95b783a88a6bb8473b", kill_on_drop: false }`
[INFO] [stderr]    Compiling transproto v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the type `[u8; 10]` does not permit being left uninitialized
[INFO] [stdout]   --> src/proto.rs:82:54
[INFO] [stdout]    |
[INFO] [stdout] 82 |                 let mut buf: [u8; MAX_VARINT_SIZE] = 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]    = note: integers must be initialized
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[u8; 10]` does not permit being left uninitialized
[INFO] [stdout]   --> src/proto.rs:82:54
[INFO] [stdout]    |
[INFO] [stdout] 82 |                 let mut buf: [u8; MAX_VARINT_SIZE] = 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]    = note: integers must be initialized
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "67b47762a6fbf99a9bc7ddf4df4c928eede74bf5596a4c95b783a88a6bb8473b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67b47762a6fbf99a9bc7ddf4df4c928eede74bf5596a4c95b783a88a6bb8473b", kill_on_drop: false }`
[INFO] [stdout] 67b47762a6fbf99a9bc7ddf4df4c928eede74bf5596a4c95b783a88a6bb8473b