[INFO] fetching crate lattice-qcd-rs 0.2.1...
[INFO] checking lattice-qcd-rs-0.2.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate lattice-qcd-rs 0.2.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate lattice-qcd-rs 0.2.1
[INFO] finished tweaking crates.io crate lattice-qcd-rs 0.2.1
[INFO] tweaked toml for crates.io crate lattice-qcd-rs 0.2.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate lattice-qcd-rs 0.2.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 132 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.7.0)
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[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] [stderr]       Adding rand_distr v0.4.3 (available: v0.5.1)
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] e9d0e3330498776e02c34027aebb4ae45f2d2ddbab971677aafa049d5730bc0f
[INFO] running `Command { std: "docker" "start" "-a" "e9d0e3330498776e02c34027aebb4ae45f2d2ddbab971677aafa049d5730bc0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9d0e3330498776e02c34027aebb4ae45f2d2ddbab971677aafa049d5730bc0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9d0e3330498776e02c34027aebb4ae45f2d2ddbab971677aafa049d5730bc0f", kill_on_drop: false }`
[INFO] [stdout] e9d0e3330498776e02c34027aebb4ae45f2d2ddbab971677aafa049d5730bc0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] ad32ddbecd51e6203b3cd2ca76c7f104685ca347d21f31fd366e6bb4c5c65384
[INFO] running `Command { std: "docker" "start" "-a" "ad32ddbecd51e6203b3cd2ca76c7f104685ca347d21f31fd366e6bb4c5c65384", kill_on_drop: false }`
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[INFO] [stderr]     Checking lattice-qcd-rs v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `assert_eq_matrix`
[INFO] [stdout]     --> src/su3.rs:1012:17
[INFO] [stdout]      |
[INFO] [stdout] 1012 |     use crate::{assert_eq_matrix, I};
[INFO] [stdout]      |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<state::LatticeStateDefault<D>, Never>
[INFO] [stdout]    --> src/simulation/monte_carlo/heat_bath.rs:154:54
[INFO] [stdout]     |
[INFO] [stdout] 154 |       ) -> Result<LatticeStateDefault<D>, Self::Error> {
[INFO] [stdout]     |  ______________________________________________________^
[INFO] [stdout] 155 | |         Ok(self.next_element_default(state))
[INFO] [stdout] 156 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<state::LatticeStateDefault<D>, Never>
[INFO] [stdout]    --> src/simulation/monte_carlo/heat_bath.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 |         Ok(self.next_element_default(state))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<state::LatticeStateDefault<D>, Never>
[INFO] [stdout]    --> src/simulation/monte_carlo/metropolis_hastings.rs:464:54
[INFO] [stdout]     |
[INFO] [stdout] 464 |       ) -> Result<LatticeStateDefault<D>, Self::Error> {
[INFO] [stdout]     |  ______________________________________________________^
[INFO] [stdout] 465 | |         Ok(self.next_element_default(state))
[INFO] [stdout] 466 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<state::LatticeStateDefault<D>, Never>
[INFO] [stdout]    --> src/simulation/monte_carlo/metropolis_hastings.rs:465:9
[INFO] [stdout]     |
[INFO] [stdout] 465 |         Ok(self.next_element_default(state))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<state::LatticeStateDefault<D>, Never>
[INFO] [stdout]    --> src/simulation/monte_carlo/metropolis_hastings_sweep.rs:199:54
[INFO] [stdout]     |
[INFO] [stdout] 199 |       ) -> Result<LatticeStateDefault<D>, Self::Error> {
[INFO] [stdout]     |  ______________________________________________________^
[INFO] [stdout] 200 | |         Ok(self.next_element_default(state))
[INFO] [stdout] 201 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<state::LatticeStateDefault<D>, Never>
[INFO] [stdout]    --> src/simulation/monte_carlo/metropolis_hastings_sweep.rs:200:9
[INFO] [stdout]     |
[INFO] [stdout] 200 |         Ok(self.next_element_default(state))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<state::LatticeStateDefault<D>, Never>
[INFO] [stdout]    --> src/simulation/monte_carlo/overrelaxation.rs:132:54
[INFO] [stdout]     |
[INFO] [stdout] 132 |       ) -> Result<LatticeStateDefault<D>, Self::Error> {
[INFO] [stdout]     |  ______________________________________________________^
[INFO] [stdout] 133 | |         Ok(Self::next_element_default(state))
[INFO] [stdout] 134 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<state::LatticeStateDefault<D>, Never>
[INFO] [stdout]    --> src/simulation/monte_carlo/overrelaxation.rs:133:9
[INFO] [stdout]     |
[INFO] [stdout] 133 |         Ok(Self::next_element_default(state))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<state::LatticeStateDefault<D>, Never>
[INFO] [stdout]    --> src/simulation/monte_carlo/overrelaxation.rs:205:54
[INFO] [stdout]     |
[INFO] [stdout] 205 |       ) -> Result<LatticeStateDefault<D>, Self::Error> {
[INFO] [stdout]     |  ______________________________________________________^
[INFO] [stdout] 206 | |         Ok(Self::next_element_default(state))
[INFO] [stdout] 207 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<state::LatticeStateDefault<D>, Never>
[INFO] [stdout]    --> src/simulation/monte_carlo/overrelaxation.rs:206:9
[INFO] [stdout]     |
[INFO] [stdout] 206 |         Ok(Self::next_element_default(state))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lattice-qcd-rs` (lib) due to 10 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<state::LatticeStateDefault<D>, error::Never>
[INFO] [stdout]    --> src/simulation/monte_carlo/heat_bath.rs:154:54
[INFO] [stdout]     |
[INFO] [stdout] 154 |       ) -> Result<LatticeStateDefault<D>, Self::Error> {
[INFO] [stdout]     |  ______________________________________________________^
[INFO] [stdout] 155 | |         Ok(self.next_element_default(state))
[INFO] [stdout] 156 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<state::LatticeStateDefault<D>, error::Never>
[INFO] [stdout]    --> src/simulation/monte_carlo/heat_bath.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 |         Ok(self.next_element_default(state))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<state::LatticeStateDefault<D>, error::Never>
[INFO] [stdout]    --> src/simulation/monte_carlo/metropolis_hastings.rs:464:54
[INFO] [stdout]     |
[INFO] [stdout] 464 |       ) -> Result<LatticeStateDefault<D>, Self::Error> {
[INFO] [stdout]     |  ______________________________________________________^
[INFO] [stdout] 465 | |         Ok(self.next_element_default(state))
[INFO] [stdout] 466 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<state::LatticeStateDefault<D>, error::Never>
[INFO] [stdout]    --> src/simulation/monte_carlo/metropolis_hastings.rs:465:9
[INFO] [stdout]     |
[INFO] [stdout] 465 |         Ok(self.next_element_default(state))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<state::LatticeStateDefault<D>, error::Never>
[INFO] [stdout]    --> src/simulation/monte_carlo/metropolis_hastings_sweep.rs:199:54
[INFO] [stdout]     |
[INFO] [stdout] 199 |       ) -> Result<LatticeStateDefault<D>, Self::Error> {
[INFO] [stdout]     |  ______________________________________________________^
[INFO] [stdout] 200 | |         Ok(self.next_element_default(state))
[INFO] [stdout] 201 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<state::LatticeStateDefault<D>, error::Never>
[INFO] [stdout]    --> src/simulation/monte_carlo/metropolis_hastings_sweep.rs:200:9
[INFO] [stdout]     |
[INFO] [stdout] 200 |         Ok(self.next_element_default(state))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<state::LatticeStateDefault<D>, error::Never>
[INFO] [stdout]    --> src/simulation/monte_carlo/overrelaxation.rs:132:54
[INFO] [stdout]     |
[INFO] [stdout] 132 |       ) -> Result<LatticeStateDefault<D>, Self::Error> {
[INFO] [stdout]     |  ______________________________________________________^
[INFO] [stdout] 133 | |         Ok(Self::next_element_default(state))
[INFO] [stdout] 134 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<state::LatticeStateDefault<D>, error::Never>
[INFO] [stdout]    --> src/simulation/monte_carlo/overrelaxation.rs:133:9
[INFO] [stdout]     |
[INFO] [stdout] 133 |         Ok(Self::next_element_default(state))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<state::LatticeStateDefault<D>, error::Never>
[INFO] [stdout]    --> src/simulation/monte_carlo/overrelaxation.rs:205:54
[INFO] [stdout]     |
[INFO] [stdout] 205 |       ) -> Result<LatticeStateDefault<D>, Self::Error> {
[INFO] [stdout]     |  ______________________________________________________^
[INFO] [stdout] 206 | |         Ok(Self::next_element_default(state))
[INFO] [stdout] 207 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<state::LatticeStateDefault<D>, error::Never>
[INFO] [stdout]    --> src/simulation/monte_carlo/overrelaxation.rs:206:9
[INFO] [stdout]     |
[INFO] [stdout] 206 |         Ok(Self::next_element_default(state))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, error::Never>, state::LatticeStateDefault<3>>
[INFO] [stdout]   --> src/test/integrator.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |         state = state.monte_carlo_step(&mut mh)?;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<state::LatticeStateDefault<3>, error::Never>
[INFO] [stdout]   --> src/test/integrator.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |         state = state.monte_carlo_step(&mut mh)?;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lattice-qcd-rs` (lib test) due to 12 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "ad32ddbecd51e6203b3cd2ca76c7f104685ca347d21f31fd366e6bb4c5c65384", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad32ddbecd51e6203b3cd2ca76c7f104685ca347d21f31fd366e6bb4c5c65384", kill_on_drop: false }`
[INFO] [stdout] ad32ddbecd51e6203b3cd2ca76c7f104685ca347d21f31fd366e6bb4c5c65384
