[INFO] updating cached repository https://github.com/aleics/rsmath
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 566bccb010f3437e3924e8604cdaf1f7a7b18e98
[INFO] checking aleics/rsmath against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faleics%2Frsmath" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aleics/rsmath on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/aleics/rsmath
[INFO] finished tweaking git repo https://github.com/aleics/rsmath
[INFO] tweaked toml for git repo https://github.com/aleics/rsmath written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/aleics/rsmath already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 52f9fdf75e7428fd9a36ccfc99fad425f7e1f603da8958f08e964ba9ec767d50
[INFO] running `"docker" "start" "-a" "52f9fdf75e7428fd9a36ccfc99fad425f7e1f603da8958f08e964ba9ec767d50"`
[INFO] [stderr]     Checking num-traits v0.1.36
[INFO] [stderr]     Checking rustc-serialize v0.3.22
[INFO] [stderr]     Checking num-integer v0.1.32
[INFO] [stderr]     Checking num-iter v0.1.32
[INFO] [stderr]     Checking num-bigint v0.1.35
[INFO] [stderr]     Checking num-complex v0.1.35
[INFO] [stderr]     Checking num-rational v0.1.35
[INFO] [stderr]     Checking num v0.1.36
[INFO] [stderr]     Checking rsmath v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/algebra/matrix.rs:898:9
[INFO] [stderr]     |
[INFO] [stderr] 898 |         try!(writeln!(f, "{{"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/algebra/matrix.rs:900:13
[INFO] [stderr]     |
[INFO] [stderr] 900 |             try!(write!(f, "[ "));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/algebra/matrix.rs:902:17
[INFO] [stderr]     |
[INFO] [stderr] 902 |                 try!(write!(f, "{} ", el));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/algebra/matrix.rs:904:13
[INFO] [stderr]     |
[INFO] [stderr] 904 |             try!(writeln!(f, "]"));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/algebra/matrix.rs:906:9
[INFO] [stderr]     |
[INFO] [stderr] 906 |         try!(writeln!(f, "}}"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/algebra/vector.rs:223:9
[INFO] [stderr]     |
[INFO] [stderr] 223 |         try!(write!(f, "[ "));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/algebra/vector.rs:225:13
[INFO] [stderr]     |
[INFO] [stderr] 225 |             try!(write!(f, "{el} ",  el = el));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/algebra/vector.rs:216:9
[INFO] [stderr]     |
[INFO] [stderr] 216 |         (sum / self.values.len() as f64)
[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 block return value
[INFO] [stderr]    --> src/linspace/vector.rs:156:9
[INFO] [stderr]     |
[INFO] [stderr] 156 |         ((self.x*other.x) + (self.y*other.y) + (self.z*other.z))
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/algebra/matrix.rs:898:9
[INFO] [stderr]     |
[INFO] [stderr] 898 |         try!(writeln!(f, "{{"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/algebra/matrix.rs:900:13
[INFO] [stderr]     |
[INFO] [stderr] 900 |             try!(write!(f, "[ "));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/algebra/matrix.rs:902:17
[INFO] [stderr]     |
[INFO] [stderr] 902 |                 try!(write!(f, "{} ", el));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/algebra/matrix.rs:904:13
[INFO] [stderr]     |
[INFO] [stderr] 904 |             try!(writeln!(f, "]"));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/algebra/matrix.rs:906:9
[INFO] [stderr]     |
[INFO] [stderr] 906 |         try!(writeln!(f, "}}"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/algebra/vector.rs:223:9
[INFO] [stderr]     |
[INFO] [stderr] 223 |         try!(write!(f, "[ "));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/algebra/vector.rs:225:13
[INFO] [stderr]     |
[INFO] [stderr] 225 |             try!(write!(f, "{el} ",  el = el));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/algebra/vector.rs:216:9
[INFO] [stderr]     |
[INFO] [stderr] 216 |         (sum / self.values.len() as f64)
[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 block return value
[INFO] [stderr]    --> src/linspace/vector.rs:156:9
[INFO] [stderr]     |
[INFO] [stderr] 156 |         ((self.x*other.x) + (self.y*other.y) + (self.z*other.z))
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.69s
[INFO] running `"docker" "inspect" "52f9fdf75e7428fd9a36ccfc99fad425f7e1f603da8958f08e964ba9ec767d50"`
[INFO] running `"docker" "rm" "-f" "52f9fdf75e7428fd9a36ccfc99fad425f7e1f603da8958f08e964ba9ec767d50"`
[INFO] [stdout] 52f9fdf75e7428fd9a36ccfc99fad425f7e1f603da8958f08e964ba9ec767d50