[INFO] fetching crate ptr-union 2.2.2...
[INFO] checking ptr-union-2.2.2 against nightly-2024-02-05 for check-cfg-2
[INFO] extracting crate ptr-union 2.2.2 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate ptr-union 2.2.2 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ptr-union 2.2.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate ptr-union 2.2.2
[INFO] tweaked toml for crates.io crate ptr-union 2.2.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded erasable v1.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef44a4b311610c5d5023939f8423faef26b30d6a8e445f3ad0fc93b97b94ff2a
[INFO] running `Command { std: "docker" "start" "-a" "ef44a4b311610c5d5023939f8423faef26b30d6a8e445f3ad0fc93b97b94ff2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef44a4b311610c5d5023939f8423faef26b30d6a8e445f3ad0fc93b97b94ff2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef44a4b311610c5d5023939f8423faef26b30d6a8e445f3ad0fc93b97b94ff2a", kill_on_drop: false }`
[INFO] [stdout] ef44a4b311610c5d5023939f8423faef26b30d6a8e445f3ad0fc93b97b94ff2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08df4b9513d0c6a7689784a1d8d477b2cb4d9810fc95de0c2e38f49992b81120
[INFO] running `Command { std: "docker" "start" "-a" "08df4b9513d0c6a7689784a1d8d477b2cb4d9810fc95de0c2e38f49992b81120", kill_on_drop: false }`
[INFO] [stderr]    Compiling erasable v1.2.1
[INFO] [stderr]    Compiling ptr-union v2.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/smoke.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct BigA([u128; 16]);
[INFO] [stdout]    |        ---- ^^^^^^^^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BigA` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct BigA(());
[INFO] [stdout]    |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/smoke.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct BigB([u128; 16]);
[INFO] [stdout]    |        ---- ^^^^^^^^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BigB` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct BigB(());
[INFO] [stdout]    |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/smoke.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct BigC([u128; 16]);
[INFO] [stdout]    |        ---- ^^^^^^^^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BigC` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct BigC(());
[INFO] [stdout]    |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/smoke.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct BigD([u128; 16]);
[INFO] [stdout]    |        ---- ^^^^^^^^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BigD` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct BigD(());
[INFO] [stdout]    |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> tests/smoke.rs:48:30
[INFO] [stdout]    |
[INFO] [stdout] 48 |     a.with_a(|a: &Box<BigA>| drop(dbg!(a))).unwrap();
[INFO] [stdout]    |                              ^^^^^-------^
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   argument has type `&Box<BigA>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> tests/smoke.rs:49:30
[INFO] [stdout]    |
[INFO] [stdout] 49 |     b.with_b(|b: &Box<BigB>| drop(dbg!(b))).unwrap();
[INFO] [stdout]    |                              ^^^^^-------^
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   argument has type `&Box<BigB>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> tests/smoke.rs:65:30
[INFO] [stdout]    |
[INFO] [stdout] 65 |     a.with_a(|a: &Box<BigA>| drop(dbg!(a))).unwrap();
[INFO] [stdout]    |                              ^^^^^-------^
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   argument has type `&Box<BigA>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> tests/smoke.rs:66:30
[INFO] [stdout]    |
[INFO] [stdout] 66 |     b.with_b(|b: &Box<BigB>| drop(dbg!(b))).unwrap();
[INFO] [stdout]    |                              ^^^^^-------^
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   argument has type `&Box<BigB>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> tests/smoke.rs:67:30
[INFO] [stdout]    |
[INFO] [stdout] 67 |     c.with_c(|c: &Box<BigC>| drop(dbg!(c))).unwrap();
[INFO] [stdout]    |                              ^^^^^-------^
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   argument has type `&Box<BigC>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> tests/smoke.rs:87:30
[INFO] [stdout]    |
[INFO] [stdout] 87 |     a.with_a(|a: &Box<BigA>| drop(dbg!(a))).unwrap();
[INFO] [stdout]    |                              ^^^^^-------^
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   argument has type `&Box<BigA>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> tests/smoke.rs:88:30
[INFO] [stdout]    |
[INFO] [stdout] 88 |     b.with_b(|b: &Box<BigB>| drop(dbg!(b))).unwrap();
[INFO] [stdout]    |                              ^^^^^-------^
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   argument has type `&Box<BigB>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> tests/smoke.rs:89:30
[INFO] [stdout]    |
[INFO] [stdout] 89 |     c.with_c(|c: &Box<BigC>| drop(dbg!(c))).unwrap();
[INFO] [stdout]    |                              ^^^^^-------^
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   argument has type `&Box<BigC>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> tests/smoke.rs:90:30
[INFO] [stdout]    |
[INFO] [stdout] 90 |     d.with_d(|d: &Box<BigD>| drop(dbg!(d))).unwrap();
[INFO] [stdout]    |                              ^^^^^-------^
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   argument has type `&Box<BigD>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "08df4b9513d0c6a7689784a1d8d477b2cb4d9810fc95de0c2e38f49992b81120", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08df4b9513d0c6a7689784a1d8d477b2cb4d9810fc95de0c2e38f49992b81120", kill_on_drop: false }`
[INFO] [stdout] 08df4b9513d0c6a7689784a1d8d477b2cb4d9810fc95de0c2e38f49992b81120
