[INFO] fetching crate puan-rust 0.1.8...
[INFO] checking puan-rust-0.1.8 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate puan-rust 0.1.8 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate puan-rust 0.1.8 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate puan-rust 0.1.8
[INFO] finished tweaking crates.io crate puan-rust 0.1.8
[INFO] tweaked toml for crates.io crate puan-rust 0.1.8 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 66 packages
[INFO] [stderr]       Adding anes v0.1.6 (latest: v0.2.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding clap v3.2.25 (latest: v4.5.4)
[INFO] [stderr]       Adding clap_lex v0.2.4 (latest: v0.7.0)
[INFO] [stderr]       Adding criterion v0.4.0 (latest: v0.5.1)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding hermit-abi v0.1.19 (latest: v0.3.9)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.12.1)
[INFO] [stderr]       Adding os_str_bytes v6.6.1 (latest: v7.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c99ac6cdca5996f85f2b9be869415f6721653652a274fc294ac62718b3192168
[INFO] running `Command { std: "docker" "start" "-a" "c99ac6cdca5996f85f2b9be869415f6721653652a274fc294ac62718b3192168", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c99ac6cdca5996f85f2b9be869415f6721653652a274fc294ac62718b3192168", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c99ac6cdca5996f85f2b9be869415f6721653652a274fc294ac62718b3192168", kill_on_drop: false }`
[INFO] [stdout] c99ac6cdca5996f85f2b9be869415f6721653652a274fc294ac62718b3192168
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf407759508da6c49c84b7139d56fc7ec4a3a46e5e5d6534a6adcf2f3bea57fe
[INFO] running `Command { std: "docker" "start" "-a" "bf407759508da6c49c84b7139d56fc7ec4a3a46e5e5d6534a6adcf2f3bea57fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking half v2.4.0
[INFO] [stderr]     Checking os_str_bytes v6.6.1
[INFO] [stderr]     Checking ciborium-io v0.2.2
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking textwrap v0.16.1
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]     Checking puan-rust v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stdout] warning: function `convert_ilp_to_standard_form` is never used
[INFO] [stdout]    --> src/solver.rs:170:4
[INFO] [stdout]     |
[INFO] [stdout] 170 | fn convert_ilp_to_standard_form(lp: &IntegerLinearProgram) -> StandardFormLP {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `convert_to_standard_form` is never used
[INFO] [stdout]    --> src/solver.rs:410:8
[INFO] [stdout]     |
[INFO] [stdout] 409 | impl IntegerLinearProgram {
[INFO] [stdout]     | ------------------------- method in this implementation
[INFO] [stdout] 410 |     fn convert_to_standard_form(&self) -> StandardFormLP {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking clap v3.2.25
[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 v0.4.0
[INFO] [stdout] warning: unused variable: `depth`
[INFO] [stdout]   --> benches/puan_benchmark.rs:11:81
[INFO] [stdout]    |
[INFO] [stdout] 11 |         group.bench_with_input(BenchmarkId::from_parameter(depth), &depth, |b, &depth| {
[INFO] [stdout]    |                                                                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_depth`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Itertools` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:570:9
[INFO] [stdout]     |
[INFO] [stdout] 567 |     use super::*;
[INFO] [stdout]     |         -------- the item `Itertools` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 570 |     use itertools::Itertools;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `convert_ilp_to_standard_form` is never used
[INFO] [stdout]    --> src/solver.rs:170:4
[INFO] [stdout]     |
[INFO] [stdout] 170 | fn convert_ilp_to_standard_form(lp: &IntegerLinearProgram) -> StandardFormLP {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `convert_to_standard_form` is never used
[INFO] [stdout]    --> src/solver.rs:410:8
[INFO] [stdout]     |
[INFO] [stdout] 409 | impl IntegerLinearProgram {
[INFO] [stdout]     | ------------------------- method in this implementation
[INFO] [stdout] 410 |     fn convert_to_standard_form(&self) -> StandardFormLP {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.26s
[INFO] running `Command { std: "docker" "inspect" "bf407759508da6c49c84b7139d56fc7ec4a3a46e5e5d6534a6adcf2f3bea57fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf407759508da6c49c84b7139d56fc7ec4a3a46e5e5d6534a6adcf2f3bea57fe", kill_on_drop: false }`
[INFO] [stdout] bf407759508da6c49c84b7139d56fc7ec4a3a46e5e5d6534a6adcf2f3bea57fe