[INFO] fetching crate electro 0.9.3...
[INFO] checking electro-0.9.3 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate electro 0.9.3 into /workspace/builds/worker-54/source
[INFO] validating manifest of crates.io crate electro 0.9.3 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-54/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a0f879ec981e9ae82f25966c76cc03ae6290a4c0f24d5e64b654b73e2db6a36e
[INFO] running `Command { std: "docker" "start" "-a" "a0f879ec981e9ae82f25966c76cc03ae6290a4c0f24d5e64b654b73e2db6a36e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a0f879ec981e9ae82f25966c76cc03ae6290a4c0f24d5e64b654b73e2db6a36e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0f879ec981e9ae82f25966c76cc03ae6290a4c0f24d5e64b654b73e2db6a36e", kill_on_drop: false }`
[INFO] [stdout] a0f879ec981e9ae82f25966c76cc03ae6290a4c0f24d5e64b654b73e2db6a36e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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" "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" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e0dcdd304d78685dbe5579fe23c7196bda071fcde047def90ad655b3fc045eed
[INFO] running `Command { std: "docker" "start" "-a" "e0dcdd304d78685dbe5579fe23c7196bda071fcde047def90ad655b3fc045eed", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-iter v0.1.42
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking rulinalg v0.4.2
[INFO] [stderr]     Checking 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]     |                                   ~~
[INFO] [stdout] help: or `..=` for an inclusive range
[INFO] [stdout]     |
[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: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]     |                                   ~~
[INFO] [stdout] help: or `..=` for an inclusive range
[INFO] [stdout]     |
[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]     |                                   ~~
[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]     |                                   ~~~
[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]     |                                 ~~
[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]     |                                 ~~~
[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]     |                                   ~~
[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]     |                                   ~~~
[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]     |                                           ~~
[INFO] [stdout] help: or `..=` for an inclusive range
[INFO] [stdout]     |
[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: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]     |                                 ~~
[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]     |                                 ~~~
[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]     |                                           ~~
[INFO] [stdout] help: or `..=` for an inclusive range
[INFO] [stdout]     |
[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]     |                                           ~~
[INFO] [stdout] help: or `..=` for an inclusive range
[INFO] [stdout]     |
[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: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]     |                                           ~~
[INFO] [stdout] help: or `..=` for an inclusive range
[INFO] [stdout]     |
[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: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]     |                                           ~~
[INFO] [stdout] help: or `..=` for an inclusive range
[INFO] [stdout]     |
[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: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]     |                                           ~~
[INFO] [stdout] help: or `..=` for an inclusive range
[INFO] [stdout]     |
[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]     |                                           ~~
[INFO] [stdout] help: or `..=` for an inclusive range
[INFO] [stdout]     |
[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: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]     |                                           ~~
[INFO] [stdout] help: or `..=` for an inclusive range
[INFO] [stdout]     |
[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: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]     |                                           ~~
[INFO] [stdout] help: or `..=` for an inclusive range
[INFO] [stdout]     |
[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]     |                                           ~~
[INFO] [stdout] help: or `..=` for an inclusive range
[INFO] [stdout]     |
[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]     |                                           ~~
[INFO] [stdout] help: or `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout] 359 |   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]     |                                           ~~
[INFO] [stdout] help: or `..=` for an inclusive range
[INFO] [stdout]     |
[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)]` on by default
[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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `electro` due to 10 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 9 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e0dcdd304d78685dbe5579fe23c7196bda071fcde047def90ad655b3fc045eed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0dcdd304d78685dbe5579fe23c7196bda071fcde047def90ad655b3fc045eed", kill_on_drop: false }`
[INFO] [stdout] e0dcdd304d78685dbe5579fe23c7196bda071fcde047def90ad655b3fc045eed