[INFO] fetching crate splr 0.14.0...
[INFO] checking splr-0.14.0 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate splr 0.14.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate splr 0.14.0 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate splr 0.14.0
[INFO] finished tweaking crates.io crate splr 0.14.0
[INFO] tweaked toml for crates.io crate splr 0.14.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate splr 0.14.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3660c63d97973bbda44624fae471976a83187c7318d3b7c29af3aae6deb8fec4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3660c63d97973bbda44624fae471976a83187c7318d3b7c29af3aae6deb8fec4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3660c63d97973bbda44624fae471976a83187c7318d3b7c29af3aae6deb8fec4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3660c63d97973bbda44624fae471976a83187c7318d3b7c29af3aae6deb8fec4", kill_on_drop: false }`
[INFO] [stdout] 3660c63d97973bbda44624fae471976a83187c7318d3b7c29af3aae6deb8fec4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4adb5cd3a630401fb7b360d0938cedd6aa2a22d2d08dd45ce957283850cdffd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e4adb5cd3a630401fb7b360d0938cedd6aa2a22d2d08dd45ce957283850cdffd", kill_on_drop: false }`
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking splr v0.14.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `activity_decay_default`
[INFO] [stdout]    --> src/assign/mod.rs:190:5
[INFO] [stdout]     |
[INFO] [stdout] 190 |     activity_decay_default: f64,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `activity_decay_step`
[INFO] [stdout]    --> src/assign/mod.rs:194:5
[INFO] [stdout]     |
[INFO] [stdout] 194 |     activity_decay_step: f64,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `during_vivification`
[INFO] [stdout]    --> src/assign/mod.rs:199:5
[INFO] [stdout]     |
[INFO] [stdout] 199 |     during_vivification: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `num_lbd_update`
[INFO] [stdout]    --> src/cdb/mod.rs:263:5
[INFO] [stdout]     |
[INFO] [stdout] 263 |     num_lbd_update: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `extra_inc`
[INFO] [stdout]    --> src/cdb/mod.rs:271:5
[INFO] [stdout]     |
[INFO] [stdout] 271 |     extra_inc: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `reducible`
[INFO] [stdout]    --> src/cdb/mod.rs:275:5
[INFO] [stdout]     |
[INFO] [stdout] 275 |     reducible: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `restart_inc`
[INFO] [stdout]    --> src/solver/restart.rs:265:5
[INFO] [stdout]     |
[INFO] [stdout] 265 |     restart_inc: f64,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `activity_decay_default`
[INFO] [stdout]    --> src/assign/mod.rs:190:5
[INFO] [stdout]     |
[INFO] [stdout] 190 |     activity_decay_default: f64,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `activity_decay_step`
[INFO] [stdout]    --> src/assign/mod.rs:194:5
[INFO] [stdout]     |
[INFO] [stdout] 194 |     activity_decay_step: f64,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `during_vivification`
[INFO] [stdout]    --> src/assign/mod.rs:199:5
[INFO] [stdout]     |
[INFO] [stdout] 199 |     during_vivification: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `num_lbd_update`
[INFO] [stdout]    --> src/cdb/mod.rs:263:5
[INFO] [stdout]     |
[INFO] [stdout] 263 |     num_lbd_update: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `extra_inc`
[INFO] [stdout]    --> src/cdb/mod.rs:271:5
[INFO] [stdout]     |
[INFO] [stdout] 271 |     extra_inc: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `reducible`
[INFO] [stdout]    --> src/cdb/mod.rs:275:5
[INFO] [stdout]     |
[INFO] [stdout] 275 |     reducible: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `restart_inc`
[INFO] [stdout]    --> src/solver/restart.rs:265:5
[INFO] [stdout]     |
[INFO] [stdout] 265 |     restart_inc: f64,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.74s
[INFO] running `Command { std: "docker" "inspect" "e4adb5cd3a630401fb7b360d0938cedd6aa2a22d2d08dd45ce957283850cdffd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4adb5cd3a630401fb7b360d0938cedd6aa2a22d2d08dd45ce957283850cdffd", kill_on_drop: false }`
[INFO] [stdout] e4adb5cd3a630401fb7b360d0938cedd6aa2a22d2d08dd45ce957283850cdffd