[INFO] fetching crate electro 0.9.3...
[INFO] testing electro-0.9.3 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate electro 0.9.3 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate electro 0.9.3
[INFO] finished tweaking crates.io crate electro 0.9.3
[INFO] tweaked toml for crates.io crate electro 0.9.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate electro 0.9.3 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 21 packages to latest compatible versions
[INFO] [stderr]       Adding num v0.1.43 (available: v0.4.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a58442f62587b3152bb71863f94550e45340c0bfebcdcfade264873b7411e3d
[INFO] running `Command { std: "docker" "start" "-a" "6a58442f62587b3152bb71863f94550e45340c0bfebcdcfade264873b7411e3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a58442f62587b3152bb71863f94550e45340c0bfebcdcfade264873b7411e3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a58442f62587b3152bb71863f94550e45340c0bfebcdcfade264873b7411e3d", kill_on_drop: false }`
[INFO] [stdout] 6a58442f62587b3152bb71863f94550e45340c0bfebcdcfade264873b7411e3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4508f2aa67fd222d7b0356db58861fcdefa8004b55c3f9fd4bbc3ec77b054347
[INFO] running `Command { std: "docker" "start" "-a" "4508f2aa67fd222d7b0356db58861fcdefa8004b55c3f9fd4bbc3ec77b054347", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling num-bigint v0.1.45
[INFO] [stderr]    Compiling rustc-serialize v0.3.25
[INFO] [stderr]    Compiling num-complex v0.1.44
[INFO] [stderr]    Compiling num-rational v0.1.43
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling rawpointer v0.1.0
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling num v0.1.43
[INFO] [stderr]    Compiling rulinalg v0.4.2
[INFO] [stderr]    Compiling electro v0.9.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: unexpected token: `...`
[INFO] [stdout]    --> src/topo.rs:126:35
[INFO] [stdout]     |
[INFO] [stdout] 126 |   let bottom_horiz = lower_left[0]...lower_right[0];
[INFO] [stdout]     |                                   ^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `..` for an exclusive range
[INFO] [stdout]     |
[INFO] [stdout] 126 -   let bottom_horiz = lower_left[0]...lower_right[0];
[INFO] [stdout] 126 +   let bottom_horiz = lower_left[0]..lower_right[0];
[INFO] [stdout]     |
[INFO] [stdout] help: or `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout] 126 -   let bottom_horiz = lower_left[0]...lower_right[0];
[INFO] [stdout] 126 +   let bottom_horiz = lower_left[0]..=lower_right[0];
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected token: `...`
[INFO] [stdout]    --> src/topo.rs:128:35
[INFO] [stdout]     |
[INFO] [stdout] 128 |   let right_vert = (upper_right[1]...lower_right[1]).rev();
[INFO] [stdout]     |                                   ^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `..` for an exclusive range
[INFO] [stdout]     |
[INFO] [stdout] 128 -   let right_vert = (upper_right[1]...lower_right[1]).rev();
[INFO] [stdout] 128 +   let right_vert = (upper_right[1]..lower_right[1]).rev();
[INFO] [stdout]     |
[INFO] [stdout] help: or `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout] 128 -   let right_vert = (upper_right[1]...lower_right[1]).rev();
[INFO] [stdout] 128 +   let right_vert = (upper_right[1]..=lower_right[1]).rev();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected token: `...`
[INFO] [stdout]    --> src/topo.rs:129:33
[INFO] [stdout]     |
[INFO] [stdout] 129 |   let top_horiz = (upper_left[0]...upper_right[0]).rev();
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `..` for an exclusive range
[INFO] [stdout]     |
[INFO] [stdout] 129 -   let top_horiz = (upper_left[0]...upper_right[0]).rev();
[INFO] [stdout] 129 +   let top_horiz = (upper_left[0]..upper_right[0]).rev();
[INFO] [stdout]     |
[INFO] [stdout] help: or `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout] 129 -   let top_horiz = (upper_left[0]...upper_right[0]).rev();
[INFO] [stdout] 129 +   let top_horiz = (upper_left[0]..=upper_right[0]).rev();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected token: `...`
[INFO] [stdout]    --> src/topo.rs:257:43
[INFO] [stdout]     |
[INFO] [stdout] 257 |   let conductor_col_inds = conductor_start...conductor_end;
[INFO] [stdout]     |                                           ^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `..` for an exclusive range
[INFO] [stdout]     |
[INFO] [stdout] 257 -   let conductor_col_inds = conductor_start...conductor_end;
[INFO] [stdout] 257 +   let conductor_col_inds = conductor_start..conductor_end;
[INFO] [stdout]     |
[INFO] [stdout] help: or `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout] 257 -   let conductor_col_inds = conductor_start...conductor_end;
[INFO] [stdout] 257 +   let conductor_col_inds = conductor_start..=conductor_end;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected token: `...`
[INFO] [stdout]    --> src/topo.rs:274:43
[INFO] [stdout]     |
[INFO] [stdout] 274 |   let conductor_col_inds = conductor_start...conductor_end;
[INFO] [stdout]     |                                           ^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `..` for an exclusive range
[INFO] [stdout]     |
[INFO] [stdout] 274 -   let conductor_col_inds = conductor_start...conductor_end;
[INFO] [stdout] 274 +   let conductor_col_inds = conductor_start..conductor_end;
[INFO] [stdout]     |
[INFO] [stdout] help: or `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout] 274 -   let conductor_col_inds = conductor_start...conductor_end;
[INFO] [stdout] 274 +   let conductor_col_inds = conductor_start..=conductor_end;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected token: `...`
[INFO] [stdout]    --> src/topo.rs:300:43
[INFO] [stdout]     |
[INFO] [stdout] 300 |   let conductor_col_inds = conductor_start...conductor_end;
[INFO] [stdout]     |                                           ^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `..` for an exclusive range
[INFO] [stdout]     |
[INFO] [stdout] 300 -   let conductor_col_inds = conductor_start...conductor_end;
[INFO] [stdout] 300 +   let conductor_col_inds = conductor_start..conductor_end;
[INFO] [stdout]     |
[INFO] [stdout] help: or `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout] 300 -   let conductor_col_inds = conductor_start...conductor_end;
[INFO] [stdout] 300 +   let conductor_col_inds = conductor_start..=conductor_end;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected token: `...`
[INFO] [stdout]    --> src/topo.rs:322:43
[INFO] [stdout]     |
[INFO] [stdout] 322 |   let conductor_col_inds = conductor_start...conductor_end;
[INFO] [stdout]     |                                           ^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `..` for an exclusive range
[INFO] [stdout]     |
[INFO] [stdout] 322 -   let conductor_col_inds = conductor_start...conductor_end;
[INFO] [stdout] 322 +   let conductor_col_inds = conductor_start..conductor_end;
[INFO] [stdout]     |
[INFO] [stdout] help: or `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout] 322 -   let conductor_col_inds = conductor_start...conductor_end;
[INFO] [stdout] 322 +   let conductor_col_inds = conductor_start..=conductor_end;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected token: `...`
[INFO] [stdout]    --> src/topo.rs:341:43
[INFO] [stdout]     |
[INFO] [stdout] 341 |   let conductor_col_inds = conductor_start...conductor_end;
[INFO] [stdout]     |                                           ^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `..` for an exclusive range
[INFO] [stdout]     |
[INFO] [stdout] 341 -   let conductor_col_inds = conductor_start...conductor_end;
[INFO] [stdout] 341 +   let conductor_col_inds = conductor_start..conductor_end;
[INFO] [stdout]     |
[INFO] [stdout] help: or `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout] 341 -   let conductor_col_inds = conductor_start...conductor_end;
[INFO] [stdout] 341 +   let conductor_col_inds = conductor_start..=conductor_end;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected token: `...`
[INFO] [stdout]    --> src/topo.rs:359:43
[INFO] [stdout]     |
[INFO] [stdout] 359 |   let conductor_col_inds = conductor_start...conductor_end;
[INFO] [stdout]     |                                           ^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `..` for an exclusive range
[INFO] [stdout]     |
[INFO] [stdout] 359 -   let conductor_col_inds = conductor_start...conductor_end;
[INFO] [stdout] 359 +   let conductor_col_inds = conductor_start..conductor_end;
[INFO] [stdout]     |
[INFO] [stdout] help: or `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout] 359 -   let conductor_col_inds = conductor_start...conductor_end;
[INFO] [stdout] 359 +   let conductor_col_inds = conductor_start..=conductor_end;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be in the root module
[INFO] [stdout]  --> src/fd.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(step_by)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `inclusive_range_syntax` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(inclusive_range_syntax)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `slice_patterns` has been stable since 1.42.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(slice_patterns)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `step_by`
[INFO] [stdout]  --> src/lib.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(step_by)]
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/mm.rs:123:20
[INFO] [stdout]     |
[INFO] [stdout] 123 |     for (diag_ind, mut diag_val) in moment_mat
[INFO] [stdout]     |                    ----^^^^^^^^
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/mm.rs:255:9
[INFO] [stdout]     |
[INFO] [stdout] 255 |     for mut diag_val in moment_mat.diag_iter_mut(DiagOffset::Main) {
[INFO] [stdout]     |         ----^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `electro` (lib) due to 10 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "4508f2aa67fd222d7b0356db58861fcdefa8004b55c3f9fd4bbc3ec77b054347", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4508f2aa67fd222d7b0356db58861fcdefa8004b55c3f9fd4bbc3ec77b054347", kill_on_drop: false }`
[INFO] [stdout] 4508f2aa67fd222d7b0356db58861fcdefa8004b55c3f9fd4bbc3ec77b054347