[INFO] fetching crate equation 1.0.0...
[INFO] checking equation-1.0.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate equation 1.0.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate equation 1.0.0
[INFO] finished tweaking crates.io crate equation 1.0.0
[INFO] tweaked toml for crates.io crate equation 1.0.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate equation 1.0.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate equation 1.0.0 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70a6cdee7509d4563a63a45689ccf47f433370bcf4628465fa81210db33c7762
[INFO] running `Command { std: "docker" "start" "-a" "70a6cdee7509d4563a63a45689ccf47f433370bcf4628465fa81210db33c7762", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70a6cdee7509d4563a63a45689ccf47f433370bcf4628465fa81210db33c7762", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70a6cdee7509d4563a63a45689ccf47f433370bcf4628465fa81210db33c7762", kill_on_drop: false }`
[INFO] [stdout] 70a6cdee7509d4563a63a45689ccf47f433370bcf4628465fa81210db33c7762
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41c1609be2e8c65ee7f012a246a14d6a3dc07ab594810434224a7ce0d32c7ccf
[INFO] running `Command { std: "docker" "start" "-a" "41c1609be2e8c65ee7f012a246a14d6a3dc07ab594810434224a7ce0d32c7ccf", kill_on_drop: false }`
[INFO] [stderr]    Compiling thiserror v1.0.48
[INFO] [stderr]    Compiling memchr v2.6.3
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.32
[INFO] [stderr]    Compiling thiserror-impl v1.0.48
[INFO] [stderr]     Checking pest v2.7.3
[INFO] [stderr]    Compiling pest_meta v2.7.3
[INFO] [stderr]    Compiling pest_generator v2.7.3
[INFO] [stderr]    Compiling pest_derive v2.7.3
[INFO] [stderr]     Checking equation v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<f64, Infallible>
[INFO] [stdout]   --> src/operation.rs:36:40
[INFO] [stdout]    |
[INFO] [stdout] 36 |             Self::Exponent => lhs.powf(rhs.try_into().unwrap()),
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `equation` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<f64, Infallible>
[INFO] [stdout]   --> src/operation.rs:36:40
[INFO] [stdout]    |
[INFO] [stdout] 36 |             Self::Exponent => lhs.powf(rhs.try_into().unwrap()),
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `equation` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "41c1609be2e8c65ee7f012a246a14d6a3dc07ab594810434224a7ce0d32c7ccf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41c1609be2e8c65ee7f012a246a14d6a3dc07ab594810434224a7ce0d32c7ccf", kill_on_drop: false }`
[INFO] [stdout] 41c1609be2e8c65ee7f012a246a14d6a3dc07ab594810434224a7ce0d32c7ccf
