[INFO] fetching crate shr_qpack_log 0.1.7...
[INFO] building shr_qpack_log-0.1.7 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate shr_qpack_log 0.1.7 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate shr_qpack_log 0.1.7 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 shr_qpack_log 0.1.7
[INFO] finished tweaking crates.io crate shr_qpack_log 0.1.7
[INFO] tweaked toml for crates.io crate shr_qpack_log 0.1.7 written to /workspace/builds/worker-7-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 1 package to latest compatible version
[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-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e9766a3b72ce81006c58b88bcaafa4b45cb55038aac5455c3460650b17dbaf6a
[INFO] running `Command { std: "docker" "start" "-a" "e9766a3b72ce81006c58b88bcaafa4b45cb55038aac5455c3460650b17dbaf6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9766a3b72ce81006c58b88bcaafa4b45cb55038aac5455c3460650b17dbaf6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9766a3b72ce81006c58b88bcaafa4b45cb55038aac5455c3460650b17dbaf6a", kill_on_drop: false }`
[INFO] [stdout] e9766a3b72ce81006c58b88bcaafa4b45cb55038aac5455c3460650b17dbaf6a
[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 -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] 2590e94a7d490b3dc0ffee682e15fa6759b842738d19b46acd3f5fc01b0e32ef
[INFO] running `Command { std: "docker" "start" "-a" "2590e94a7d490b3dc0ffee682e15fa6759b842738d19b46acd3f5fc01b0e32ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling bytes v1.9.0
[INFO] [stderr]    Compiling shr_qpack_log v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `required_insert_count`, `bytes`, `sign`, and `delta_base` are never read
[INFO] [stdout]   --> src/lib.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct FieldSection{
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] 28 |     required_insert_count :Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 29 |     bytes:Option<Vec<u8>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 30 |     sign:Option<u8>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 31 |     delta_base:Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FieldSection` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "2590e94a7d490b3dc0ffee682e15fa6759b842738d19b46acd3f5fc01b0e32ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2590e94a7d490b3dc0ffee682e15fa6759b842738d19b46acd3f5fc01b0e32ef", kill_on_drop: false }`
[INFO] [stdout] 2590e94a7d490b3dc0ffee682e15fa6759b842738d19b46acd3f5fc01b0e32ef
[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 -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] 3d153d77909c7a69b889a0fd3ee811cd539fa352656d75f2fe25bfc8bb6e312d
[INFO] running `Command { std: "docker" "start" "-a" "3d153d77909c7a69b889a0fd3ee811cd539fa352656d75f2fe25bfc8bb6e312d", kill_on_drop: false }`
[INFO] [stderr]    Compiling shr_qpack_log v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `required_insert_count`, `bytes`, `sign`, and `delta_base` are never read
[INFO] [stdout]   --> src/lib.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct FieldSection{
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] 28 |     required_insert_count :Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 29 |     bytes:Option<Vec<u8>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 30 |     sign:Option<u8>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 31 |     delta_base:Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FieldSection` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `required_insert_count`, `bytes`, `sign`, and `delta_base` are never read
[INFO] [stdout]   --> src/lib.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct FieldSection{
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] 28 |     required_insert_count :Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 29 |     bytes:Option<Vec<u8>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 30 |     sign:Option<u8>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 31 |     delta_base:Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FieldSection` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "3d153d77909c7a69b889a0fd3ee811cd539fa352656d75f2fe25bfc8bb6e312d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d153d77909c7a69b889a0fd3ee811cd539fa352656d75f2fe25bfc8bb6e312d", kill_on_drop: false }`
[INFO] [stdout] 3d153d77909c7a69b889a0fd3ee811cd539fa352656d75f2fe25bfc8bb6e312d