[INFO] fetching crate numopt 0.2.1...
[INFO] checking numopt-0.2.1 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate numopt 0.2.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate numopt 0.2.1
[INFO] finished tweaking crates.io crate numopt 0.2.1
[INFO] tweaked toml for crates.io crate numopt 0.2.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate numopt 0.2.1 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 53 packages to latest compatible versions
[INFO] [stderr]       Adding approx v0.3.2 (available: v0.5.1)
[INFO] [stderr]       Adding ndarray v0.13.1 (available: v0.16.1)
[INFO] [stderr]       Adding serial_test v0.4.0 (available: v3.2.0)
[INFO] [stderr]       Adding simple-error v0.2.3 (available: v0.3.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f4dd61899534b40fbeab80b7d9a4840e30bfc175b8e77e10aefd81ce8fc1837
[INFO] running `Command { std: "docker" "start" "-a" "2f4dd61899534b40fbeab80b7d9a4840e30bfc175b8e77e10aefd81ce8fc1837", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f4dd61899534b40fbeab80b7d9a4840e30bfc175b8e77e10aefd81ce8fc1837", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f4dd61899534b40fbeab80b7d9a4840e30bfc175b8e77e10aefd81ce8fc1837", kill_on_drop: false }`
[INFO] [stdout] 2f4dd61899534b40fbeab80b7d9a4840e30bfc175b8e77e10aefd81ce8fc1837
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bbe296799c4daadda619cf8b89ee440f0a2568a1850e4d336e83a347d99a1e4b
[INFO] running `Command { std: "docker" "start" "-a" "bbe296799c4daadda619cf8b89ee440f0a2568a1850e4d336e83a347d99a1e4b", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]     Checking matrixmultiply v0.2.4
[INFO] [stderr]     Checking simple-error v0.2.3
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking parking_lot_core v0.7.3
[INFO] [stderr]     Checking rustix v1.0.8
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]    Compiling serial_test_derive v0.4.0
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking serial_test v0.4.0
[INFO] [stderr]     Checking tempfile v3.21.0
[INFO] [stderr]     Checking numopt v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&Node` instead of cloning the inner type
[INFO] [stdout]   --> src/model/node_diff.rs:38:78
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let varset: HashSet<&Node> = HashSet::from_iter(vars.iter().map(|x| x.clone()));
[INFO] [stdout]    |                                                                              ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&Node` instead of cloning the inner type
[INFO] [stdout]    --> src/model/node_diff.rs:101:78
[INFO] [stdout]     |
[INFO] [stdout] 101 |         let varset: HashSet<&Node> = HashSet::from_iter(vars.iter().map(|x| x.clone()));
[INFO] [stdout]     |                                                                              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/matrix/coo.rs:92:17
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn iter(&self) -> CooMatIter<T> { CooMatIter::new(&self) }
[INFO] [stdout]    |                 ^^^^^     ------------- the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn iter(&self) -> CooMatIter<'_, T> { CooMatIter::new(&self) }
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&Node` instead of cloning the inner type
[INFO] [stdout]   --> src/model/node_diff.rs:38:78
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let varset: HashSet<&Node> = HashSet::from_iter(vars.iter().map(|x| x.clone()));
[INFO] [stdout]    |                                                                              ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&Node` instead of cloning the inner type
[INFO] [stdout]    --> src/model/node_diff.rs:101:78
[INFO] [stdout]     |
[INFO] [stdout] 101 |         let varset: HashSet<&Node> = HashSet::from_iter(vars.iter().map(|x| x.clone()));
[INFO] [stdout]     |                                                                              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/matrix/coo.rs:92:17
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn iter(&self) -> CooMatIter<T> { CooMatIter::new(&self) }
[INFO] [stdout]    |                 ^^^^^     ------------- the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn iter(&self) -> CooMatIter<'_, T> { CooMatIter::new(&self) }
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.02s
[INFO] running `Command { std: "docker" "inspect" "bbe296799c4daadda619cf8b89ee440f0a2568a1850e4d336e83a347d99a1e4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbe296799c4daadda619cf8b89ee440f0a2568a1850e4d336e83a347d99a1e4b", kill_on_drop: false }`
[INFO] [stdout] bbe296799c4daadda619cf8b89ee440f0a2568a1850e4d336e83a347d99a1e4b