[INFO] fetching crate veho 0.0.16...
[INFO] building veho-0.0.16 against master#d5c88c22807925c189328ef9d923c5d2b11a95b8 for pr-87066-3
[INFO] extracting crate veho 0.0.16 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate veho 0.0.16 on toolchain d5c88c22807925c189328ef9d923c5d2b11a95b8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate veho 0.0.16
[INFO] finished tweaking crates.io crate veho 0.0.16
[INFO] tweaked toml for crates.io crate veho 0.0.16 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c4ce435f4705557db949f28e74fce56f61d37737ee22dddddb656b5d8ae34a1b
[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" "c4ce435f4705557db949f28e74fce56f61d37737ee22dddddb656b5d8ae34a1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4ce435f4705557db949f28e74fce56f61d37737ee22dddddb656b5d8ae34a1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4ce435f4705557db949f28e74fce56f61d37737ee22dddddb656b5d8ae34a1b", kill_on_drop: false }`
[INFO] [stdout] c4ce435f4705557db949f28e74fce56f61d37737ee22dddddb656b5d8ae34a1b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 739e552aabc3df38717621a9afac0793ce05d5c3be5014e7b18c018d60ffece4
[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" "739e552aabc3df38717621a9afac0793ce05d5c3be5014e7b18c018d60ffece4", kill_on_drop: false }`
[INFO] [stderr]    Compiling veho v0.0.16 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/vector/mappers.rs:17:40
[INFO] [stdout]    |
[INFO] [stdout] 17 |     { for x in &mut self.into_iter() { &f(&mut *x); } }
[INFO] [stdout]    |                                        ^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 17 |     { for x in &mut self.into_iter() { let _ = &f(&mut *x); } }
[INFO] [stdout]    |                                        +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/vector/mappers.rs:32:57
[INFO] [stdout]    |
[INFO] [stdout] 32 |     { for (i, x) in &mut self.into_iter().enumerate() { &f(i, &mut *x); } }
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 32 |     { for (i, x) in &mut self.into_iter().enumerate() { let _ = &f(i, &mut *x); } }
[INFO] [stdout]    |                                                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/matrix/mutaters.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |                 &f(&mut *x);
[INFO] [stdout]    |                 ^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 14 |                 let _ = &f(&mut *x);
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/matrix/mutaters.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 26 |                 &f(i, j, &mut *x);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 26 |                 let _ = &f(i, j, &mut *x);
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "739e552aabc3df38717621a9afac0793ce05d5c3be5014e7b18c018d60ffece4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "739e552aabc3df38717621a9afac0793ce05d5c3be5014e7b18c018d60ffece4", kill_on_drop: false }`
[INFO] [stdout] 739e552aabc3df38717621a9afac0793ce05d5c3be5014e7b18c018d60ffece4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1307bb43df5fcc605987295f7225e93e6906c07aa6533470c1c0ca17a6ffbbc4
[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" "1307bb43df5fcc605987295f7225e93e6906c07aa6533470c1c0ca17a6ffbbc4", kill_on_drop: false }`
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/vector/mappers.rs:17:40
[INFO] [stdout]    |
[INFO] [stdout] 17 |     { for x in &mut self.into_iter() { &f(&mut *x); } }
[INFO] [stdout]    |                                        ^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 17 |     { for x in &mut self.into_iter() { let _ = &f(&mut *x); } }
[INFO] [stdout]    |                                        +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling veho v0.0.16 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/vector/mappers.rs:32:57
[INFO] [stdout]    |
[INFO] [stdout] 32 |     { for (i, x) in &mut self.into_iter().enumerate() { &f(i, &mut *x); } }
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 32 |     { for (i, x) in &mut self.into_iter().enumerate() { let _ = &f(i, &mut *x); } }
[INFO] [stdout]    |                                                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/matrix/mutaters.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |                 &f(&mut *x);
[INFO] [stdout]    |                 ^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 14 |                 let _ = &f(&mut *x);
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/matrix/mutaters.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 26 |                 &f(i, j, &mut *x);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 26 |                 let _ = &f(i, j, &mut *x);
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> tests/alpha/zip_test/alpha_zip_test_not_worked.rs:37:89
[INFO] [stdout]    |
[INFO] [stdout] 37 |         $first.into_iter().zip($second).map(|(x, y)| $func(x,y)).collect::<Vec<$type>>();
[INFO] [stdout]    |                                                                                         ^
[INFO] [stdout] ...
[INFO] [stdout] 75 |         let v = zipper!(&a, &b; | a, b | a + b; i32);
[INFO] [stdout]    |                 ------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: this warning originates in the macro `zipper` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> tests/alpha/columns_test/mapper_test.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> tests/alpha/mut_test/simplest_iter_mut_test_worked.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         &f(&mut *x);
[INFO] [stdout]    |         ^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 43 |         let _ = &f(&mut *x);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> tests/alpha/mut_test/matrix_iter_mut_test_not_worked.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |         &f(&mut *x);
[INFO] [stdout]    |         ^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let _ = &f(&mut *x);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/vector/mappers.rs:17:40
[INFO] [stdout]    |
[INFO] [stdout] 17 |     { for x in &mut self.into_iter() { &f(&mut *x); } }
[INFO] [stdout]    |                                        ^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 17 |     { for x in &mut self.into_iter() { let _ = &f(&mut *x); } }
[INFO] [stdout]    |                                        +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/vector/mappers.rs:32:57
[INFO] [stdout]    |
[INFO] [stdout] 32 |     { for (i, x) in &mut self.into_iter().enumerate() { &f(i, &mut *x); } }
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 32 |     { for (i, x) in &mut self.into_iter().enumerate() { let _ = &f(i, &mut *x); } }
[INFO] [stdout]    |                                                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/vector/mappers.rs:94:13
[INFO] [stdout]    |
[INFO] [stdout] 94 |             &mut text.push_str(&x.to_string());
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 94 |             let _ = &mut text.push_str(&x.to_string());
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/matrix/mappers.rs:127:13
[INFO] [stdout]     |
[INFO] [stdout] 127 |             &mut text.push_str(&format!("#{:0>6X}", x));
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 127 |             let _ = &mut text.push_str(&format!("#{:0>6X}", x));
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/matrix/mutaters.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |                 &f(&mut *x);
[INFO] [stdout]    |                 ^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 14 |                 let _ = &f(&mut *x);
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/matrix/mutaters.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 26 |                 &f(i, j, &mut *x);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 26 |                 let _ = &f(i, j, &mut *x);
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.14s
[INFO] running `Command { std: "docker" "inspect" "1307bb43df5fcc605987295f7225e93e6906c07aa6533470c1c0ca17a6ffbbc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1307bb43df5fcc605987295f7225e93e6906c07aa6533470c1c0ca17a6ffbbc4", kill_on_drop: false }`
[INFO] [stdout] 1307bb43df5fcc605987295f7225e93e6906c07aa6533470c1c0ca17a6ffbbc4