[INFO] fetching crate lhef 0.6.0...
[INFO] checking lhef-0.6.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate lhef 0.6.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate lhef 0.6.0 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 lhef 0.6.0
[INFO] finished tweaking crates.io crate lhef 0.6.0
[INFO] tweaked toml for crates.io crate lhef 0.6.0 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]     Updating crates.io index
[INFO] [stderr]      Locking 81 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 itertools v0.11.0 (latest: v0.12.1)
[INFO] [stderr]       Adding xmltree v0.9.0 (latest: v0.10.3)
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded xmltree v0.9.0
[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] ce6b29944bd72fe50acc8d79f240d68773b60f48fe994b73c61c5f7c710a886f
[INFO] running `Command { std: "docker" "start" "-a" "ce6b29944bd72fe50acc8d79f240d68773b60f48fe994b73c61c5f7c710a886f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce6b29944bd72fe50acc8d79f240d68773b60f48fe994b73c61c5f7c710a886f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce6b29944bd72fe50acc8d79f240d68773b60f48fe994b73c61c5f7c710a886f", kill_on_drop: false }`
[INFO] [stdout] ce6b29944bd72fe50acc8d79f240d68773b60f48fe994b73c61c5f7c710a886f
[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] f0afa74262b86c83e39a590eb8c305d6b44432e18fdcaed63a50b98be97ba324
[INFO] running `Command { std: "docker" "start" "-a" "f0afa74262b86c83e39a590eb8c305d6b44432e18fdcaed63a50b98be97ba324", kill_on_drop: false }`
[INFO] [stderr]     Checking half v2.4.0
[INFO] [stderr]     Checking anstyle v1.0.6
[INFO] [stderr]     Checking plotters-backend v0.3.5
[INFO] [stderr]     Checking clap_lex v0.7.0
[INFO] [stderr]     Checking ciborium-io v0.2.2
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking xmltree v0.9.0
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking clap_builder v4.5.2
[INFO] [stderr]     Checking plotters-svg v0.3.5
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]     Checking plotters v0.3.5
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]     Checking fast-float v0.2.0
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking lhef v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stdout] warning: the item `Drop` is imported redundantly
[INFO] [stdout]  --> src/writer.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ops::Drop;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Drop` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking clap v4.5.4
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[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: the item `Drop` is imported redundantly
[INFO] [stdout]  --> src/writer.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ops::Drop;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Drop` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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 14.07s
[INFO] running `Command { std: "docker" "inspect" "f0afa74262b86c83e39a590eb8c305d6b44432e18fdcaed63a50b98be97ba324", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0afa74262b86c83e39a590eb8c305d6b44432e18fdcaed63a50b98be97ba324", kill_on_drop: false }`
[INFO] [stdout] f0afa74262b86c83e39a590eb8c305d6b44432e18fdcaed63a50b98be97ba324