[INFO] fetching crate mtl 0.1.5...
[INFO] checking mtl-0.1.5 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] extracting crate mtl 0.1.5 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate mtl 0.1.5 on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mtl 0.1.5
[INFO] finished tweaking crates.io crate mtl 0.1.5
[INFO] tweaked toml for crates.io crate mtl 0.1.5 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 19 packages to latest compatible versions
[INFO] [stderr]       Adding num v0.1.42 (available: v0.4.3)
[INFO] [stderr]       Adding num-bigint v0.1.44 (available: v0.4.6)
[INFO] [stderr]       Adding num-complex v0.1.43 (available: v0.4.6)
[INFO] [stderr]       Adding num-rational v0.1.42 (available: v0.4.2)
[INFO] [stderr]       Adding rand v0.3.23 (available: v0.8.5)
[INFO] [stderr]       Adding rand v0.4.6 (available: v0.8.5)
[INFO] [stderr]       Adding rand_core v0.3.1 (available: v0.6.4)
[INFO] [stderr]       Adding rand_core v0.4.2 (available: v0.6.4)
[INFO] [stderr]       Adding rdrand v0.4.0 (available: v0.8.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c0c950224d56709403c0347c68877caa2633db3bc5c39aee2ea96cc67cdf09b
[INFO] running `Command { std: "docker" "start" "-a" "3c0c950224d56709403c0347c68877caa2633db3bc5c39aee2ea96cc67cdf09b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c0c950224d56709403c0347c68877caa2633db3bc5c39aee2ea96cc67cdf09b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c0c950224d56709403c0347c68877caa2633db3bc5c39aee2ea96cc67cdf09b", kill_on_drop: false }`
[INFO] [stdout] 3c0c950224d56709403c0347c68877caa2633db3bc5c39aee2ea96cc67cdf09b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6688e8ebfdfbf2d7bfce0746e4a3b7884d9c6c864349004eb00ffa68645d96b0
[INFO] running `Command { std: "docker" "start" "-a" "6688e8ebfdfbf2d7bfce0746e4a3b7884d9c6c864349004eb00ffa68645d96b0", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking mtl v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `core::array::FixedSizeArray`
[INFO] [stdout]  --> src/matrix/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::array::FixedSizeArray;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `FixedSizeArray` in `array`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::array::FixedSizeArray`
[INFO] [stdout]  --> src/matrix/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::array::FixedSizeArray;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `FixedSizeArray` in `array`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `ix`
[INFO] [stdout]    --> src/ndarray/mod.rs:158:14
[INFO] [stdout]     |
[INFO] [stdout] 158 | macro_rules! ix {
[INFO] [stdout]     |              ^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:2:20
[INFO] [stdout]     |
[INFO] [stdout] 2   | #![warn(bad_style, unused, unused_import_braces,
[INFO] [stdout]     |                    ^^^^^^
[INFO] [stdout]     = note: `#[warn(unused_macros)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/matrix/view.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |         try!(write!(f, "<MatrixSubView dim={:?}, {:?}>", self.dim, view));
[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/matrix/view.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |         try!(writeln!(f, ""));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/matrix/view.rs:91:17
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 try!(write!(f, "[["));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/matrix/view.rs:93:17
[INFO] [stdout]    |
[INFO] [stdout] 93 |                 try!(write!(f, " ["));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/matrix/view.rs:96:17
[INFO] [stdout]    |
[INFO] [stdout] 96 |                 try!(write!(f, "{:-4.}", self[j][i]));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/matrix/view.rs:98:21
[INFO] [stdout]    |
[INFO] [stdout] 98 |                     try!(write!(f, "]"));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/view.rs:100:21
[INFO] [stdout]     |
[INFO] [stdout] 100 |                     try!(write!(f, ", "));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/view.rs:104:17
[INFO] [stdout]     |
[INFO] [stdout] 104 |                 try!(write!(f, "]"));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/view.rs:106:17
[INFO] [stdout]     |
[INFO] [stdout] 106 |                 try!(writeln!(f, ""));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/sparse/mod.rs:752:21
[INFO] [stdout]     |
[INFO] [stdout] 752 |                     try!(writeln!(f, "  {:?}\t{}", (rows[i], cols[i]), data[i]));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/sparse/mod.rs:759:25
[INFO] [stdout]     |
[INFO] [stdout] 759 |                         try!(writeln!(f, "  {:?}\t{}", (i, j), val));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/sparse/mod.rs:767:25
[INFO] [stdout]     |
[INFO] [stdout] 767 |                         try!(writeln!(f, "  {:?}\t{}", (i, j), val));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/sparse/mod.rs:774:25
[INFO] [stdout]     |
[INFO] [stdout] 774 |                         try!(writeln!(f, "  {:?}\t{}", (i, j), data[i][pos]));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/sparse/mod.rs:780:21
[INFO] [stdout]     |
[INFO] [stdout] 780 |                     try!(writeln!(f, "  {:?}\t{}", key, value));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/sparse/mod.rs:784:17
[INFO] [stdout]     |
[INFO] [stdout] 784 |                 try!(write!(f, "{}", this.to_coo()));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/mod.rs:482:9
[INFO] [stdout]     |
[INFO] [stdout] 482 |         try!(write!(f, "<Matrix dim={:?}, {:?}>", self.dim, self.data));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/mod.rs:489:9
[INFO] [stdout]     |
[INFO] [stdout] 489 |         try!(writeln!(f, ""));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/mod.rs:492:17
[INFO] [stdout]     |
[INFO] [stdout] 492 |                 try!(write!(f, "[["));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/mod.rs:494:17
[INFO] [stdout]     |
[INFO] [stdout] 494 |                 try!(write!(f, " ["));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/mod.rs:497:17
[INFO] [stdout]     |
[INFO] [stdout] 497 |                 try!(write!(f, "{:-4.}", self[j][i]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/mod.rs:499:21
[INFO] [stdout]     |
[INFO] [stdout] 499 |                     try!(write!(f, "]"));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/mod.rs:501:21
[INFO] [stdout]     |
[INFO] [stdout] 501 |                     try!(write!(f, ", "));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/mod.rs:505:17
[INFO] [stdout]     |
[INFO] [stdout] 505 |                 try!(write!(f, "]"));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/mod.rs:507:17
[INFO] [stdout]     |
[INFO] [stdout] 507 |                 try!(writeln!(f, ""));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/matrix/view.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |         try!(write!(f, "<MatrixSubView dim={:?}, {:?}>", self.dim, view));
[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/matrix/view.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |         try!(writeln!(f, ""));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/matrix/view.rs:91:17
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 try!(write!(f, "[["));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/matrix/view.rs:93:17
[INFO] [stdout]    |
[INFO] [stdout] 93 |                 try!(write!(f, " ["));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/matrix/view.rs:96:17
[INFO] [stdout]    |
[INFO] [stdout] 96 |                 try!(write!(f, "{:-4.}", self[j][i]));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/matrix/view.rs:98:21
[INFO] [stdout]    |
[INFO] [stdout] 98 |                     try!(write!(f, "]"));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/view.rs:100:21
[INFO] [stdout]     |
[INFO] [stdout] 100 |                     try!(write!(f, ", "));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/view.rs:104:17
[INFO] [stdout]     |
[INFO] [stdout] 104 |                 try!(write!(f, "]"));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/view.rs:106:17
[INFO] [stdout]     |
[INFO] [stdout] 106 |                 try!(writeln!(f, ""));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/sparse/mod.rs:752:21
[INFO] [stdout]     |
[INFO] [stdout] 752 |                     try!(writeln!(f, "  {:?}\t{}", (rows[i], cols[i]), data[i]));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/sparse/mod.rs:759:25
[INFO] [stdout]     |
[INFO] [stdout] 759 |                         try!(writeln!(f, "  {:?}\t{}", (i, j), val));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/sparse/mod.rs:767:25
[INFO] [stdout]     |
[INFO] [stdout] 767 |                         try!(writeln!(f, "  {:?}\t{}", (i, j), val));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/sparse/mod.rs:774:25
[INFO] [stdout]     |
[INFO] [stdout] 774 |                         try!(writeln!(f, "  {:?}\t{}", (i, j), data[i][pos]));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/sparse/mod.rs:780:21
[INFO] [stdout]     |
[INFO] [stdout] 780 |                     try!(writeln!(f, "  {:?}\t{}", key, value));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/sparse/mod.rs:784:17
[INFO] [stdout]     |
[INFO] [stdout] 784 |                 try!(write!(f, "{}", this.to_coo()));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/mod.rs:482:9
[INFO] [stdout]     |
[INFO] [stdout] 482 |         try!(write!(f, "<Matrix dim={:?}, {:?}>", self.dim, self.data));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/mod.rs:489:9
[INFO] [stdout]     |
[INFO] [stdout] 489 |         try!(writeln!(f, ""));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/mod.rs:492:17
[INFO] [stdout]     |
[INFO] [stdout] 492 |                 try!(write!(f, "[["));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/mod.rs:494:17
[INFO] [stdout]     |
[INFO] [stdout] 494 |                 try!(write!(f, " ["));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/mod.rs:497:17
[INFO] [stdout]     |
[INFO] [stdout] 497 |                 try!(write!(f, "{:-4.}", self[j][i]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/mod.rs:499:21
[INFO] [stdout]     |
[INFO] [stdout] 499 |                     try!(write!(f, "]"));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/mod.rs:501:21
[INFO] [stdout]     |
[INFO] [stdout] 501 |                     try!(write!(f, ", "));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/mod.rs:505:17
[INFO] [stdout]     |
[INFO] [stdout] 505 |                 try!(write!(f, "]"));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/matrix/mod.rs:507:17
[INFO] [stdout]     |
[INFO] [stdout] 507 |                 try!(writeln!(f, ""));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/matrix/mod.rs:517:72
[INFO] [stdout]     |
[INFO] [stdout] 517 |     let mut m1 = Matrix::from_vec_and_dim(vec![1i32, 2, 3, 4], (2, 2));;
[INFO] [stdout]     |                                                                        ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:2:20
[INFO] [stdout]     |
[INFO] [stdout] 2   | #![warn(bad_style, unused, unused_import_braces,
[INFO] [stdout]     |                    ^^^^^^
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `fixed_size_array`
[INFO] [stdout]  --> src/lib.rs:1:30
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(unboxed_closures, fixed_size_array)]
[INFO] [stdout]   |                              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ndarray/subref.rs:13:24
[INFO] [stdout]    |
[INFO] [stdout] 13 |     open_mesh: Vec<Box<ArrayIx + 'a>>
[INFO] [stdout]    |                        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 13 |     open_mesh: Vec<Box<dyn ArrayIx + 'a>>
[INFO] [stdout]    |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ndarray/subref.rs:118:24
[INFO] [stdout]     |
[INFO] [stdout] 118 |     open_mesh: Vec<Box<ArrayIx + 'a>>
[INFO] [stdout]     |                        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 118 |     open_mesh: Vec<Box<dyn ArrayIx + 'a>>
[INFO] [stdout]     |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `fixed_size_array`
[INFO] [stdout]  --> src/lib.rs:1:30
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(unboxed_closures, fixed_size_array)]
[INFO] [stdout]   |                              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ndarray/subref.rs:13:24
[INFO] [stdout]    |
[INFO] [stdout] 13 |     open_mesh: Vec<Box<ArrayIx + 'a>>
[INFO] [stdout]    |                        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 13 |     open_mesh: Vec<Box<dyn ArrayIx + 'a>>
[INFO] [stdout]    |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ndarray/subref.rs:17:54
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn new<'b>(arr: &'b Array<T>, open_mesh: Vec<Box<ArrayIx + 'b>>) -> RefArray<'b, T> {
[INFO] [stdout]    |                                                      ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn new<'b>(arr: &'b Array<T>, open_mesh: Vec<Box<dyn ArrayIx + 'b>>) -> RefArray<'b, T> {
[INFO] [stdout]    |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ndarray/subref.rs:118:24
[INFO] [stdout]     |
[INFO] [stdout] 118 |     open_mesh: Vec<Box<ArrayIx + 'a>>
[INFO] [stdout]     |                        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 118 |     open_mesh: Vec<Box<dyn ArrayIx + 'a>>
[INFO] [stdout]     |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ndarray/subref.rs:122:58
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn new<'b>(arr: &'b mut Array<T>, open_mesh: Vec<Box<ArrayIx + 'b>>) -> RefMutArray<'b, T> {
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn new<'b>(arr: &'b mut Array<T>, open_mesh: Vec<Box<dyn ArrayIx + 'b>>) -> RefMutArray<'b, T> {
[INFO] [stdout]     |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ndarray/subref.rs:193:44
[INFO] [stdout]     |
[INFO] [stdout] 193 |     pub fn slice<'a>(&'a self, ix: Vec<Box<ArrayIx>>) -> RefArray<'a, T> {
[INFO] [stdout]     |                                            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 193 |     pub fn slice<'a>(&'a self, ix: Vec<Box<dyn ArrayIx>>) -> RefArray<'a, T> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ndarray/subref.rs:197:52
[INFO] [stdout]     |
[INFO] [stdout] 197 |     pub fn slice_mut<'a>(&'a mut self, ix: Vec<Box<ArrayIx>>) -> RefMutArray<'a, T> {
[INFO] [stdout]     |                                                    ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 197 |     pub fn slice_mut<'a>(&'a mut self, ix: Vec<Box<dyn ArrayIx>>) -> RefMutArray<'a, T> {
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ndarray/subref.rs:17:54
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn new<'b>(arr: &'b Array<T>, open_mesh: Vec<Box<ArrayIx + 'b>>) -> RefArray<'b, T> {
[INFO] [stdout]    |                                                      ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn new<'b>(arr: &'b Array<T>, open_mesh: Vec<Box<dyn ArrayIx + 'b>>) -> RefArray<'b, T> {
[INFO] [stdout]    |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ndarray/subref.rs:122:58
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn new<'b>(arr: &'b mut Array<T>, open_mesh: Vec<Box<ArrayIx + 'b>>) -> RefMutArray<'b, T> {
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn new<'b>(arr: &'b mut Array<T>, open_mesh: Vec<Box<dyn ArrayIx + 'b>>) -> RefMutArray<'b, T> {
[INFO] [stdout]     |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ndarray/subref.rs:193:44
[INFO] [stdout]     |
[INFO] [stdout] 193 |     pub fn slice<'a>(&'a self, ix: Vec<Box<ArrayIx>>) -> RefArray<'a, T> {
[INFO] [stdout]     |                                            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 193 |     pub fn slice<'a>(&'a self, ix: Vec<Box<dyn ArrayIx>>) -> RefArray<'a, T> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ndarray/subref.rs:197:52
[INFO] [stdout]     |
[INFO] [stdout] 197 |     pub fn slice_mut<'a>(&'a mut self, ix: Vec<Box<ArrayIx>>) -> RefMutArray<'a, T> {
[INFO] [stdout]     |                                                    ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 197 |     pub fn slice_mut<'a>(&'a mut self, ix: Vec<Box<dyn ArrayIx>>) -> RefMutArray<'a, T> {
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ndarray/mod.rs:160:39
[INFO] [stdout]     |
[INFO] [stdout] 160 |         vec![$( Box::new($arg) as Box<ArrayIx> ),*]
[INFO] [stdout]     |                                       ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 687 |     let v2 = ix!([1, 2, 3], [2, 0]);
[INFO] [stdout]     |              ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `ix` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ndarray/mod.rs:160:39
[INFO] [stdout]     |
[INFO] [stdout] 160 |         vec![$( Box::new($arg) as Box<ArrayIx> ),*]
[INFO] [stdout]     |                                       ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 693 |     println!("SUB => \n{}", v.slice(ix!(3.., [2,0])));
[INFO] [stdout]     |                                     --------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `ix` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 31 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mtl` (lib) due to 3 previous errors; 31 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 2 previous errors; 33 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mtl` (lib test) due to 3 previous errors; 33 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "6688e8ebfdfbf2d7bfce0746e4a3b7884d9c6c864349004eb00ffa68645d96b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6688e8ebfdfbf2d7bfce0746e4a3b7884d9c6c864349004eb00ffa68645d96b0", kill_on_drop: false }`
[INFO] [stdout] 6688e8ebfdfbf2d7bfce0746e4a3b7884d9c6c864349004eb00ffa68645d96b0