[INFO] fetching crate piapprec 0.1.1...
[INFO] checking piapprec-0.1.1 against master#8424f8e8cdf07010967a57584fd647b30e930d4d for pr-120095
[INFO] extracting crate piapprec 0.1.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate piapprec 0.1.1 on toolchain 8424f8e8cdf07010967a57584fd647b30e930d4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8424f8e8cdf07010967a57584fd647b30e930d4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate piapprec 0.1.1
[INFO] finished tweaking crates.io crate piapprec 0.1.1
[INFO] tweaked toml for crates.io crate piapprec 0.1.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8424f8e8cdf07010967a57584fd647b30e930d4d" "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" "+8424f8e8cdf07010967a57584fd647b30e930d4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+8424f8e8cdf07010967a57584fd647b30e930d4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e556ed2493fcfe7d0511e735b93d95256a3995e66080a0b9ce8a32387ba1d006
[INFO] running `Command { std: "docker" "start" "-a" "e556ed2493fcfe7d0511e735b93d95256a3995e66080a0b9ce8a32387ba1d006", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e556ed2493fcfe7d0511e735b93d95256a3995e66080a0b9ce8a32387ba1d006", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e556ed2493fcfe7d0511e735b93d95256a3995e66080a0b9ce8a32387ba1d006", kill_on_drop: false }`
[INFO] [stdout] e556ed2493fcfe7d0511e735b93d95256a3995e66080a0b9ce8a32387ba1d006
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+8424f8e8cdf07010967a57584fd647b30e930d4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae18f59a0aa83b5fcb23fda4bb270dbdea8a0aa5ea3c4e38cb3ed39d35dd122f
[INFO] running `Command { std: "docker" "start" "-a" "ae18f59a0aa83b5fcb23fda4bb270dbdea8a0aa5ea3c4e38cb3ed39d35dd122f", kill_on_drop: false }`
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking piapprec v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "ae18f59a0aa83b5fcb23fda4bb270dbdea8a0aa5ea3c4e38cb3ed39d35dd122f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae18f59a0aa83b5fcb23fda4bb270dbdea8a0aa5ea3c4e38cb3ed39d35dd122f", kill_on_drop: false }`
[INFO] [stdout] ae18f59a0aa83b5fcb23fda4bb270dbdea8a0aa5ea3c4e38cb3ed39d35dd122f
[INFO] checking piapprec-0.1.1 against try#047472f299946caf090d1b5608ae4bd9f0416256+rustflags=-Ddereferencing_mut_binding for pr-120095
[INFO] extracting crate piapprec 0.1.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate piapprec 0.1.1 on toolchain 047472f299946caf090d1b5608ae4bd9f0416256
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+047472f299946caf090d1b5608ae4bd9f0416256" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate piapprec 0.1.1
[INFO] finished tweaking crates.io crate piapprec 0.1.1
[INFO] tweaked toml for crates.io crate piapprec 0.1.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+047472f299946caf090d1b5608ae4bd9f0416256" "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" "+047472f299946caf090d1b5608ae4bd9f0416256" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+047472f299946caf090d1b5608ae4bd9f0416256" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13455d041db91413c783aad8478de0cc035e12aa70fa473a9d0dcd5d72b82be0
[INFO] running `Command { std: "docker" "start" "-a" "13455d041db91413c783aad8478de0cc035e12aa70fa473a9d0dcd5d72b82be0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13455d041db91413c783aad8478de0cc035e12aa70fa473a9d0dcd5d72b82be0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13455d041db91413c783aad8478de0cc035e12aa70fa473a9d0dcd5d72b82be0", kill_on_drop: false }`
[INFO] [stdout] 13455d041db91413c783aad8478de0cc035e12aa70fa473a9d0dcd5d72b82be0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Ddereferencing_mut_binding" "-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" "+047472f299946caf090d1b5608ae4bd9f0416256" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13d1e8ff59b5182dc836c53ae10e45d0b46b931db463a95f13ea81120deb7136
[INFO] running `Command { std: "docker" "start" "-a" "13d1e8ff59b5182dc836c53ae10e45d0b46b931db463a95f13ea81120deb7136", kill_on_drop: false }`
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking piapprec v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: dereferencing `mut` binding
[INFO] [stdout]   --> src/lib.rs:55:14
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let (mut prev_hash, _) = epoch_iter.next().unwrap();
[INFO] [stdout]    |              ^^^^^^^^^^^^^ `mut` dereferences the type of this binding
[INFO] [stdout]    |
[INFO] [stdout] help: this will change in edition 2024
[INFO] [stdout]   --> src/lib.rs:55:14
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let (mut prev_hash, _) = epoch_iter.next().unwrap();
[INFO] [stdout]    |              ^^^^^^^^^^^^^
[INFO] [stdout]    = note: requested on the command line with `-D dereferencing-mut-binding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `piapprec` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "13d1e8ff59b5182dc836c53ae10e45d0b46b931db463a95f13ea81120deb7136", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13d1e8ff59b5182dc836c53ae10e45d0b46b931db463a95f13ea81120deb7136", kill_on_drop: false }`
[INFO] [stdout] 13d1e8ff59b5182dc836c53ae10e45d0b46b931db463a95f13ea81120deb7136