[INFO] fetching crate matrust 0.0.6...
[INFO] testing matrust-0.0.6 against beta-2021-09-08 for beta-1.56-1
[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 beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "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] a2b09053e73b46509aaa84b79fbdeaf7b094045f9e541cfa65b6a487fb9a02a9
[INFO] running `Command { std: "docker" "start" "-a" "a2b09053e73b46509aaa84b79fbdeaf7b094045f9e541cfa65b6a487fb9a02a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2b09053e73b46509aaa84b79fbdeaf7b094045f9e541cfa65b6a487fb9a02a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2b09053e73b46509aaa84b79fbdeaf7b094045f9e541cfa65b6a487fb9a02a9", kill_on_drop: false }`
[INFO] [stdout] a2b09053e73b46509aaa84b79fbdeaf7b094045f9e541cfa65b6a487fb9a02a9
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d719a3f0124299c8c6200bc8b8d951cf0d86c1aaeda389edfc8228e075ee527f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d719a3f0124299c8c6200bc8b8d951cf0d86c1aaeda389edfc8228e075ee527f", 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]     |                      ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[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]     |                      ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.83s
[INFO] running `Command { std: "docker" "inspect" "d719a3f0124299c8c6200bc8b8d951cf0d86c1aaeda389edfc8228e075ee527f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d719a3f0124299c8c6200bc8b8d951cf0d86c1aaeda389edfc8228e075ee527f", kill_on_drop: false }`
[INFO] [stdout] d719a3f0124299c8c6200bc8b8d951cf0d86c1aaeda389edfc8228e075ee527f
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b505b42d5fadae16e85b543b8cd35135475f04be9dea0ad9e086ae679835421f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b505b42d5fadae16e85b543b8cd35135475f04be9dea0ad9e086ae679835421f", 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]     |                      ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[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]     |                      ^^^^^^^^^^^^^^ help: remove these parentheses
[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]     |                      ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[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]     |                      ^^^^^^^^^^^^^^ help: remove these parentheses
[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]     |                             ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.06s
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b505b42d5fadae16e85b543b8cd35135475f04be9dea0ad9e086ae679835421f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b505b42d5fadae16e85b543b8cd35135475f04be9dea0ad9e086ae679835421f", kill_on_drop: false }`
[INFO] [stdout] b505b42d5fadae16e85b543b8cd35135475f04be9dea0ad9e086ae679835421f
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a2a79534c4283fef462830d884cd3204d828fdec5c33de134f943d8f92c4eec7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a2a79534c4283fef462830d884cd3204d828fdec5c33de134f943d8f92c4eec7", 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]     |                      ^^^^^^^^^^^^^^ 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:136:22
[INFO] [stderr]     |
[INFO] [stderr] 136 |         self.map2(m, (|x, y| x - y))
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^ help: remove these parentheses
[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]     |                             ^^^^^^^^^^^^^^ help: remove these parentheses
[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 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/matrust-ed4d99194ba5f85f)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test test::add ... ok
[INFO] [stdout] test test::map ... ok
[INFO] [stdout] test test::map2 ... ok
[INFO] [stdout] test test::insert ... ok
[INFO] [stdout] test test::dimensions ... ok
[INFO] [stdout] test test::vec_mult ... ok
[INFO] [stdout] test test::new ... ok
[INFO] [stdout] test test::new_with_val ... ok
[INFO] [stdout] test test::scale ... ok
[INFO] [stdout] test test::index ... ok
[INFO] [stdout] test test::sub ... ok
[INFO] [stdout] test test::transpose ... 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]     |                      ^^^^^^^^^^^^^^ 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]    --> /opt/rustwide/workdir/src/lib.rs:136:22
[INFO] [stderr]     |
[INFO] [stderr] 136 |         self.map2(m, (|x, y| x - y))
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stdout] running 0 tests
[INFO] [stderr] 
[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" "a2a79534c4283fef462830d884cd3204d828fdec5c33de134f943d8f92c4eec7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2a79534c4283fef462830d884cd3204d828fdec5c33de134f943d8f92c4eec7", kill_on_drop: false }`
[INFO] [stdout] a2a79534c4283fef462830d884cd3204d828fdec5c33de134f943d8f92c4eec7