[INFO] fetching crate drop_arena 0.2.0...
[INFO] checking drop_arena-0.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate drop_arena 0.2.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate drop_arena 0.2.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate drop_arena 0.2.0
[INFO] finished tweaking crates.io crate drop_arena 0.2.0
[INFO] tweaked toml for crates.io crate drop_arena 0.2.0 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 79 packages
[INFO] [stderr]       Adding anes v0.1.6 (latest: v0.2.0)
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.12.1)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded consume_on_drop v0.1.1
[INFO] [stderr]   Downloaded typed-arena v2.0.2
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb14cbf5459e7ff90bdd17f1d55436e855ec3d7c3a22587c00892c2588b3dc8e
[INFO] running `Command { std: "docker" "start" "-a" "fb14cbf5459e7ff90bdd17f1d55436e855ec3d7c3a22587c00892c2588b3dc8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb14cbf5459e7ff90bdd17f1d55436e855ec3d7c3a22587c00892c2588b3dc8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb14cbf5459e7ff90bdd17f1d55436e855ec3d7c3a22587c00892c2588b3dc8e", kill_on_drop: false }`
[INFO] [stdout] fb14cbf5459e7ff90bdd17f1d55436e855ec3d7c3a22587c00892c2588b3dc8e
[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" "-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b64b115314a78081ddacc60f6f026325548932356ac81212127af132cf8be20
[INFO] running `Command { std: "docker" "start" "-a" "7b64b115314a78081ddacc60f6f026325548932356ac81212127af132cf8be20", kill_on_drop: false }`
[INFO] [stderr]     Checking clap_lex v0.7.0
[INFO] [stderr]     Checking anstyle v1.0.6
[INFO] [stderr]     Checking consume_on_drop v0.1.1
[INFO] [stderr]     Checking typed-arena v2.0.2
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking drop_arena v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking clap_builder v4.5.2
[INFO] [stderr]     Checking clap v4.5.4
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stdout] warning: calls to `std::mem::forget` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> benches/arena_vs_box.rs:30:17
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 std::mem::forget(std::hint::black_box(arena.alloc(i)));
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^------------------------------------^
[INFO] [stdout]    |                                  |
[INFO] [stdout]    |                                  argument has type `&mut i32`
[INFO] [stdout]    |
[INFO] [stdout]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    = note: `#[warn(forgetting_references)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.15s
[INFO] running `Command { std: "docker" "inspect" "7b64b115314a78081ddacc60f6f026325548932356ac81212127af132cf8be20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b64b115314a78081ddacc60f6f026325548932356ac81212127af132cf8be20", kill_on_drop: false }`
[INFO] [stdout] 7b64b115314a78081ddacc60f6f026325548932356ac81212127af132cf8be20
[INFO] checking drop_arena-0.2.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate drop_arena 0.2.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate drop_arena 0.2.0 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate drop_arena 0.2.0
[INFO] finished tweaking crates.io crate drop_arena 0.2.0
[INFO] tweaked toml for crates.io crate drop_arena 0.2.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b377577b3a75ce2d7691ea6fa52aeca12dded2c5136a23d4b76b8c9eb01cc4aa
[INFO] running `Command { std: "docker" "start" "-a" "b377577b3a75ce2d7691ea6fa52aeca12dded2c5136a23d4b76b8c9eb01cc4aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b377577b3a75ce2d7691ea6fa52aeca12dded2c5136a23d4b76b8c9eb01cc4aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b377577b3a75ce2d7691ea6fa52aeca12dded2c5136a23d4b76b8c9eb01cc4aa", kill_on_drop: false }`
[INFO] [stdout] b377577b3a75ce2d7691ea6fa52aeca12dded2c5136a23d4b76b8c9eb01cc4aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2edccf9785bede91e7ed4bf2741c75a68fd35f4d98e516599f72ce49d12f9ec
[INFO] running `Command { std: "docker" "start" "-a" "a2edccf9785bede91e7ed4bf2741c75a68fd35f4d98e516599f72ce49d12f9ec", kill_on_drop: false }`
[INFO] [stderr]     Checking clap_lex v0.7.0
[INFO] [stderr]     Checking anstyle v1.0.6
[INFO] [stderr]     Checking typed-arena v2.0.2
[INFO] [stderr]     Checking consume_on_drop v0.1.1
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking drop_arena v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking clap_builder v4.5.2
[INFO] [stderr]     Checking clap v4.5.4
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stdout] warning: calls to `std::mem::forget` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> benches/arena_vs_box.rs:30:17
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 std::mem::forget(std::hint::black_box(arena.alloc(i)));
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^------------------------------------^
[INFO] [stdout]    |                                  |
[INFO] [stdout]    |                                  argument has type `&mut i32`
[INFO] [stdout]    |
[INFO] [stdout]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    = note: `#[warn(forgetting_references)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.51s
[INFO] running `Command { std: "docker" "inspect" "a2edccf9785bede91e7ed4bf2741c75a68fd35f4d98e516599f72ce49d12f9ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2edccf9785bede91e7ed4bf2741c75a68fd35f4d98e516599f72ce49d12f9ec", kill_on_drop: false }`
[INFO] [stdout] a2edccf9785bede91e7ed4bf2741c75a68fd35f4d98e516599f72ce49d12f9ec