[INFO] fetching crate sparse_linear_assignment 0.1.5...
[INFO] checking sparse_linear_assignment-0.1.5 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate sparse_linear_assignment 0.1.5 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate sparse_linear_assignment 0.1.5 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sparse_linear_assignment 0.1.5
[INFO] finished tweaking crates.io crate sparse_linear_assignment 0.1.5
[INFO] tweaked toml for crates.io crate sparse_linear_assignment 0.1.5 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 106 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding clap v2.34.0 (latest: v4.5.4)
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[INFO] [stderr]       Adding tracing-subscriber v0.2.25 (latest: v0.3.18)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-core v0.52.0 (latest: v0.55.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded generic-tests v0.1.2
[INFO] [stderr]   Downloaded reservoir-sampling v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d28bc1b46167efeb661b780cbca9c4638f014ea04b3cd6712751bf0af7f71e81
[INFO] running `Command { std: "docker" "start" "-a" "d28bc1b46167efeb661b780cbca9c4638f014ea04b3cd6712751bf0af7f71e81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d28bc1b46167efeb661b780cbca9c4638f014ea04b3cd6712751bf0af7f71e81", kill_on_drop: false }`
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[INFO] [stdout] d28bc1b46167efeb661b780cbca9c4638f014ea04b3cd6712751bf0af7f71e81
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[INFO] [stdout] c90e8a483651687b189953d595394ec11ec025c59aa3e8300ef6d2a91a46ba99
[INFO] running `Command { std: "docker" "start" "-a" "c90e8a483651687b189953d595394ec11ec025c59aa3e8300ef6d2a91a46ba99", kill_on_drop: false }`
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[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking tracing-core v0.1.32
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[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling anyhow v1.0.81
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[INFO] [stderr]     Checking sparse_linear_assignment v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `anyhow` is imported redundantly
[INFO] [stdout]  --> src/ksparse.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use anyhow;
[INFO] [stdout]   |     ^^^^^^ the item `anyhow` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `num_iter` is imported redundantly
[INFO] [stdout]  --> src/ksparse.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use num_iter;
[INFO] [stdout]   |     ^^^^^^^^ the item `num_iter` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `anyhow` is imported redundantly
[INFO] [stdout]  --> src/solver.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use anyhow;
[INFO] [stdout]   |     ^^^^^^ the item `anyhow` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `num_iter` is imported redundantly
[INFO] [stdout]  --> src/solver.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use num_iter;
[INFO] [stdout]   |     ^^^^^^^^ the item `num_iter` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `anyhow` is imported redundantly
[INFO] [stdout]  --> src/symmetric.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use anyhow;
[INFO] [stdout]   |     ^^^^^^ the item `anyhow` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `num_iter` is imported redundantly
[INFO] [stdout]  --> src/symmetric.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use num_iter;
[INFO] [stdout]   |     ^^^^^^^^ the item `num_iter` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling generic-tests v0.1.2
[INFO] [stdout] warning: the item `anyhow` is imported redundantly
[INFO] [stdout]  --> src/ksparse.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use anyhow;
[INFO] [stdout]   |     ^^^^^^ the item `anyhow` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `num_iter` is imported redundantly
[INFO] [stdout]  --> src/ksparse.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use num_iter;
[INFO] [stdout]   |     ^^^^^^^^ the item `num_iter` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `anyhow` is imported redundantly
[INFO] [stdout]  --> src/solver.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use anyhow;
[INFO] [stdout]   |     ^^^^^^ the item `anyhow` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `num_iter` is imported redundantly
[INFO] [stdout]  --> src/solver.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use num_iter;
[INFO] [stdout]   |     ^^^^^^^^ the item `num_iter` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `anyhow` is imported redundantly
[INFO] [stdout]  --> src/symmetric.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use anyhow;
[INFO] [stdout]   |     ^^^^^^ the item `anyhow` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `num_iter` is imported redundantly
[INFO] [stdout]  --> src/symmetric.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use num_iter;
[INFO] [stdout]   |     ^^^^^^^^ the item `num_iter` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.06s
[INFO] running `Command { std: "docker" "inspect" "c90e8a483651687b189953d595394ec11ec025c59aa3e8300ef6d2a91a46ba99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c90e8a483651687b189953d595394ec11ec025c59aa3e8300ef6d2a91a46ba99", kill_on_drop: false }`
[INFO] [stdout] c90e8a483651687b189953d595394ec11ec025c59aa3e8300ef6d2a91a46ba99