[INFO] fetching crate matrust 0.0.6...
[INFO] testing matrust-0.0.6 against 1.60.0 for beta-1.61-1
[INFO] extracting crate matrust 0.0.6 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate matrust 0.0.6 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate matrust 0.0.6
[INFO] finished tweaking crates.io crate matrust 0.0.6
[INFO] tweaked toml for crates.io crate matrust 0.0.6 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 856287d83825c3ea1d02a387750e1d62165d41ada84ff182b9697f8543766c56
[INFO] running `Command { std: "docker" "start" "-a" "856287d83825c3ea1d02a387750e1d62165d41ada84ff182b9697f8543766c56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "856287d83825c3ea1d02a387750e1d62165d41ada84ff182b9697f8543766c56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "856287d83825c3ea1d02a387750e1d62165d41ada84ff182b9697f8543766c56", kill_on_drop: false }`
[INFO] [stdout] 856287d83825c3ea1d02a387750e1d62165d41ada84ff182b9697f8543766c56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b1e9af5f1350438b07381c02a931ea669218819751b59cb9bc1ab36bb376a949
[INFO] running `Command { std: "docker" "start" "-a" "b1e9af5f1350438b07381c02a931ea669218819751b59cb9bc1ab36bb376a949", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling matrust v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         try!(write!(f, "["));
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |                 try!(write!(f, "{}", self.val[i * self.cols + j]));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:20:21
[INFO] [stdout]    |
[INFO] [stdout] 20 |                     try!(write!(f, ", "));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |                 try!(write!(f, "; "));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/lib.rs:132:22
[INFO] [stdout]     |
[INFO] [stdout] 132 |         self.map2(m, (|x, y| x + y))
[INFO] [stdout]     |                      ^            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 132 -         self.map2(m, (|x, y| x + y))
[INFO] [stdout] 132 +         self.map2(m, |x, y| x + y)
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/lib.rs:136:22
[INFO] [stdout]     |
[INFO] [stdout] 136 |         self.map2(m, (|x, y| x - y))
[INFO] [stdout]     |                      ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 136 -         self.map2(m, (|x, y| x - y))
[INFO] [stdout] 136 +         self.map2(m, |x, y| x - y)
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.82s
[INFO] running `Command { std: "docker" "inspect" "b1e9af5f1350438b07381c02a931ea669218819751b59cb9bc1ab36bb376a949", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1e9af5f1350438b07381c02a931ea669218819751b59cb9bc1ab36bb376a949", kill_on_drop: false }`
[INFO] [stdout] b1e9af5f1350438b07381c02a931ea669218819751b59cb9bc1ab36bb376a949
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 278c3ea32671ff704d5c7bfa33981a83ed82c32f712dde13e7b50d8a87e4dbfc
[INFO] running `Command { std: "docker" "start" "-a" "278c3ea32671ff704d5c7bfa33981a83ed82c32f712dde13e7b50d8a87e4dbfc", kill_on_drop: false }`
[INFO] [stderr]    Compiling matrust v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         try!(write!(f, "["));
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |                 try!(write!(f, "{}", self.val[i * self.cols + j]));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:20:21
[INFO] [stdout]    |
[INFO] [stdout] 20 |                     try!(write!(f, ", "));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |                 try!(write!(f, "; "));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/lib.rs:132:22
[INFO] [stdout]     |
[INFO] [stdout] 132 |         self.map2(m, (|x, y| x + y))
[INFO] [stdout]     |                      ^            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 132 -         self.map2(m, (|x, y| x + y))
[INFO] [stdout] 132 +         self.map2(m, |x, y| x + y)
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/lib.rs:136:22
[INFO] [stdout]     |
[INFO] [stdout] 136 |         self.map2(m, (|x, y| x - y))
[INFO] [stdout]     |                      ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 136 -         self.map2(m, (|x, y| x - y))
[INFO] [stdout] 136 +         self.map2(m, |x, y| x - y)
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         try!(write!(f, "["));
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |                 try!(write!(f, "{}", self.val[i * self.cols + j]));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:20:21
[INFO] [stdout]    |
[INFO] [stdout] 20 |                     try!(write!(f, ", "));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |                 try!(write!(f, "; "));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/lib.rs:132:22
[INFO] [stdout]     |
[INFO] [stdout] 132 |         self.map2(m, (|x, y| x + y))
[INFO] [stdout]     |                      ^            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 132 -         self.map2(m, (|x, y| x + y))
[INFO] [stdout] 132 +         self.map2(m, |x, y| x + y)
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/lib.rs:136:22
[INFO] [stdout]     |
[INFO] [stdout] 136 |         self.map2(m, (|x, y| x - y))
[INFO] [stdout]     |                      ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 136 -         self.map2(m, (|x, y| x - y))
[INFO] [stdout] 136 +         self.map2(m, |x, y| x - y)
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/lib.rs:232:29
[INFO] [stdout]     |
[INFO] [stdout] 232 |         assert!(m.map2(&m5, (|x, y| y + x)).is_err());
[INFO] [stdout]     |                             ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 232 -         assert!(m.map2(&m5, (|x, y| y + x)).is_err());
[INFO] [stdout] 232 +         assert!(m.map2(&m5, |x, y| y + x).is_err());
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `Command { std: "docker" "inspect" "278c3ea32671ff704d5c7bfa33981a83ed82c32f712dde13e7b50d8a87e4dbfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "278c3ea32671ff704d5c7bfa33981a83ed82c32f712dde13e7b50d8a87e4dbfc", kill_on_drop: false }`
[INFO] [stdout] 278c3ea32671ff704d5c7bfa33981a83ed82c32f712dde13e7b50d8a87e4dbfc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cdf3cba34834de68a6a892813f431ff9e23b8923539d4f6d552f70ae5396ca92
[INFO] running `Command { std: "docker" "start" "-a" "cdf3cba34834de68a6a892813f431ff9e23b8923539d4f6d552f70ae5396ca92", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |         try!(write!(f, "["));
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:18:17
[INFO] [stderr]    |
[INFO] [stderr] 18 |                 try!(write!(f, "{}", self.val[i * self.cols + j]));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:20:21
[INFO] [stderr]    |
[INFO] [stderr] 20 |                     try!(write!(f, ", "));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:24:17
[INFO] [stderr]    |
[INFO] [stderr] 24 |                 try!(write!(f, "; "));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]    --> src/lib.rs:132:22
[INFO] [stderr]     |
[INFO] [stderr] 132 |         self.map2(m, (|x, y| x + y))
[INFO] [stderr]     |                      ^            ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 132 -         self.map2(m, (|x, y| x + y))
[INFO] [stderr] 132 +         self.map2(m, |x, y| x + y)
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]    --> src/lib.rs:136:22
[INFO] [stderr]     |
[INFO] [stderr] 136 |         self.map2(m, (|x, y| x - y))
[INFO] [stderr]     |                      ^            ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 136 -         self.map2(m, (|x, y| x - y))
[INFO] [stderr] 136 +         self.map2(m, |x, y| x - y)
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]    --> src/lib.rs:232:29
[INFO] [stderr]     |
[INFO] [stderr] 232 |         assert!(m.map2(&m5, (|x, y| y + x)).is_err());
[INFO] [stderr]     |                             ^            ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 232 -         assert!(m.map2(&m5, (|x, y| y + x)).is_err());
[INFO] [stderr] 232 +         assert!(m.map2(&m5, |x, y| y + x).is_err());
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: `matrust` (lib) generated 6 warnings
[INFO] [stderr] warning: `matrust` (lib test) generated 7 warnings (6 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/matrust-ed959350420a0249)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test test::add ... ok
[INFO] [stdout] test test::dimensions ... ok
[INFO] [stdout] test test::index ... ok
[INFO] [stdout] test test::map ... ok
[INFO] [stdout] test test::insert ... ok
[INFO] [stdout] test test::map2 ... ok
[INFO] [stdout] test test::transpose ... ok
[INFO] [stdout] test test::sub ... ok
[INFO] [stdout] test test::new ... ok
[INFO] [stdout] test test::vec_mult ... ok
[INFO] [stdout] test test::new_with_val ... ok
[INFO] [stdout] test test::scale ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests matrust
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:132:22
[INFO] [stderr]     |
[INFO] [stderr] 132 |         self.map2(m, (|x, y| x + y))
[INFO] [stderr]     |                      ^            ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 132 -         self.map2(m, (|x, y| x + y))
[INFO] [stderr] 132 +         self.map2(m, |x, y| x + y)
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:136:22
[INFO] [stderr]     |
[INFO] [stderr] 136 |         self.map2(m, (|x, y| x - y))
[INFO] [stderr]     |                      ^            ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 136 -         self.map2(m, (|x, y| x - y))
[INFO] [stderr] 136 +         self.map2(m, |x, y| x - y)
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cdf3cba34834de68a6a892813f431ff9e23b8923539d4f6d552f70ae5396ca92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdf3cba34834de68a6a892813f431ff9e23b8923539d4f6d552f70ae5396ca92", kill_on_drop: false }`
[INFO] [stdout] cdf3cba34834de68a6a892813f431ff9e23b8923539d4f6d552f70ae5396ca92