[INFO] fetching crate ffizz-passby 0.5.0...
[INFO] building ffizz-passby-0.5.0 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate ffizz-passby 0.5.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate ffizz-passby 0.5.0 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 ffizz-passby 0.5.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate ffizz-passby 0.5.0
[INFO] tweaked toml for crates.io crate ffizz-passby 0.5.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate ffizz-passby 0.5.0 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" "+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] ac143b8719f73631581c8bcf3fb7c30a46a4b829b447ca92e9921a2a3a6cadf3
[INFO] running `Command { std: "docker" "start" "-a" "ac143b8719f73631581c8bcf3fb7c30a46a4b829b447ca92e9921a2a3a6cadf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac143b8719f73631581c8bcf3fb7c30a46a4b829b447ca92e9921a2a3a6cadf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac143b8719f73631581c8bcf3fb7c30a46a4b829b447ca92e9921a2a3a6cadf3", kill_on_drop: false }`
[INFO] [stdout] ac143b8719f73631581c8bcf3fb7c30a46a4b829b447ca92e9921a2a3a6cadf3
[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] a1fd15e33f68f10064e3de9504313758f69d40852bef010d27c0660f7fd86a52
[INFO] running `Command { std: "docker" "start" "-a" "a1fd15e33f68f10064e3de9504313758f69d40852bef010d27c0660f7fd86a52", kill_on_drop: false }`
[INFO] [stderr]    Compiling ffizz-passby v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] running `Command { std: "docker" "inspect" "a1fd15e33f68f10064e3de9504313758f69d40852bef010d27c0660f7fd86a52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1fd15e33f68f10064e3de9504313758f69d40852bef010d27c0660f7fd86a52", kill_on_drop: false }`
[INFO] [stdout] a1fd15e33f68f10064e3de9504313758f69d40852bef010d27c0660f7fd86a52
[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] 1540134f93c03a111fb3c9a9dbf7b1d141cb674bdc02d9c1f61cd1755b172990
[INFO] running `Command { std: "docker" "start" "-a" "1540134f93c03a111fb3c9a9dbf7b1d141cb674bdc02d9c1f61cd1755b172990", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling uuid v1.3.4
[INFO] [stderr]    Compiling ffizz-passby v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/unboxed.rs:383:18
[INFO] [stdout]     |
[INFO] [stdout] 383 |     struct CType([u64; 3]); // NOTE: larger than RType
[INFO] [stdout]     |            ----- ^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/unboxed.rs:348:24
[INFO] [stdout]     |
[INFO] [stdout] 348 |         struct TwoInts(u64, u64);
[INFO] [stdout]     |                ------- ^^^  ^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                fields in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing these fields
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/unboxed.rs:349:23
[INFO] [stdout]     |
[INFO] [stdout] 349 |         struct OneInt(u64);
[INFO] [stdout]     |                ------ ^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/unboxed.rs:365:23
[INFO] [stdout]     |
[INFO] [stdout] 365 |         struct OneInt(u64);
[INFO] [stdout]     |                ------ ^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/unboxed.rs:366:27
[INFO] [stdout]     |
[INFO] [stdout] 366 |         struct EightBytes([u8; 8]);
[INFO] [stdout]     |                ---------- ^^^^^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/unboxed.rs:517:22
[INFO] [stdout]     |
[INFO] [stdout] 517 |             unsafe { Box::from_raw(cvalptr as *mut mem::MaybeUninit<CType>) };
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 517 |             unsafe { let _ = Box::from_raw(cvalptr as *mut mem::MaybeUninit<CType>); };
[INFO] [stdout]     |                      +++++++                                                       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "1540134f93c03a111fb3c9a9dbf7b1d141cb674bdc02d9c1f61cd1755b172990", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1540134f93c03a111fb3c9a9dbf7b1d141cb674bdc02d9c1f61cd1755b172990", kill_on_drop: false }`
[INFO] [stdout] 1540134f93c03a111fb3c9a9dbf7b1d141cb674bdc02d9c1f61cd1755b172990