[INFO] crate constrained 0.1.0 is already in cache
[INFO] extracting crate constrained 0.1.0 into work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/reg/constrained/0.1.0
[INFO] extracting crate constrained 0.1.0 into work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/reg/constrained/0.1.0
[INFO] validating manifest of constrained-0.1.0 on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of constrained-0.1.0 on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing constrained-0.1.0
[INFO] finished frobbing constrained-0.1.0
[INFO] frobbed toml for constrained-0.1.0 written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/reg/constrained/0.1.0/Cargo.toml
[INFO] started frobbing constrained-0.1.0
[INFO] finished frobbing constrained-0.1.0
[INFO] frobbed toml for constrained-0.1.0 written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/reg/constrained/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking constrained-0.1.0 against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-6/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/reg/constrained/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1b87be48683b2ddfa3528200a33fe7b40725e45b670ad7b0fc4c2f98c9a8c1b1
[INFO] running `"docker" "start" "-a" "1b87be48683b2ddfa3528200a33fe7b40725e45b670ad7b0fc4c2f98c9a8c1b1"`
[INFO] [stderr]     Checking constrained v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]    --> src/lib.rs:297:35
[INFO] [stderr]     |
[INFO] [stderr] 297 |     let mut lambda = N::one().max((obvalue.abs() / N::from(n).unwrap().sqrt().sqrt()));
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]    --> src/lib.rs:297:35
[INFO] [stderr]     |
[INFO] [stderr] 297 |     let mut lambda = N::one().max((obvalue.abs() / N::from(n).unwrap().sqrt().sqrt()));
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sprs::sparse::compressed::SpMatView`
[INFO] [stderr]  --> src/lib.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use sprs::sparse::compressed::SpMatView;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `One`
[INFO] [stderr]   --> src/lib.rs:19:11
[INFO] [stderr]    |
[INFO] [stderr] 19 | use num::{One, Zero, Float};
[INFO] [stderr]    |           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `lower` is never read
[INFO] [stderr]    --> src/lib.rs:373:17
[INFO] [stderr]     |
[INFO] [stderr] 373 |                 lower = zhis[iter];
[INFO] [stderr]     |                 ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sprs::sparse::compressed::SpMatView`
[INFO] [stderr]  --> src/lib.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use sprs::sparse::compressed::SpMatView;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `One`
[INFO] [stderr]   --> src/lib.rs:19:11
[INFO] [stderr]    |
[INFO] [stderr] 19 | use num::{One, Zero, Float};
[INFO] [stderr]    |           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `lower` is never read
[INFO] [stderr]    --> src/lib.rs:373:17
[INFO] [stderr]     |
[INFO] [stderr] 373 |                 lower = zhis[iter];
[INFO] [stderr]     |                 ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `from_iter`
[INFO] [stderr]    --> src/lib.rs:121:1
[INFO] [stderr]     |
[INFO] [stderr] 121 | fn from_iter<N: Copy, I: Iterator<Item=(usize, N)>>(itr: I, len: Option<usize>) -> CsVecOwned<N> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `from_iter`
[INFO] [stderr]    --> src/lib.rs:121:1
[INFO] [stderr]     |
[INFO] [stderr] 121 | fn from_iter<N: Copy, I: Iterator<Item=(usize, N)>>(itr: I, len: Option<usize>) -> CsVecOwned<N> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `"docker" "inspect" "1b87be48683b2ddfa3528200a33fe7b40725e45b670ad7b0fc4c2f98c9a8c1b1"`
[INFO] running `"docker" "rm" "-f" "1b87be48683b2ddfa3528200a33fe7b40725e45b670ad7b0fc4c2f98c9a8c1b1"`
[INFO] [stdout] 1b87be48683b2ddfa3528200a33fe7b40725e45b670ad7b0fc4c2f98c9a8c1b1