[INFO] cloning repository https://github.com/perlindgren/array_list
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/perlindgren/array_list" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperlindgren%2Farray_list", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperlindgren%2Farray_list'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eea9e09cb47cdf327fbb6344d11a8c710b5a0149
[INFO] testing perlindgren/array_list against 1.91.0 for beta-1.92-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fperlindgren%2Farray_list" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/perlindgren/array_list
[INFO] finished tweaking git repo https://github.com/perlindgren/array_list
[INFO] tweaked toml for git repo https://github.com/perlindgren/array_list written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/perlindgren/array_list on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/perlindgren/array_list already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 807fb2b9720606f342a88a31d5412c11704b5aabf5a6e680c85755988748ec4c
[INFO] running `Command { std: "docker" "start" "-a" "807fb2b9720606f342a88a31d5412c11704b5aabf5a6e680c85755988748ec4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "807fb2b9720606f342a88a31d5412c11704b5aabf5a6e680c85755988748ec4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "807fb2b9720606f342a88a31d5412c11704b5aabf5a6e680c85755988748ec4c", kill_on_drop: false }`
[INFO] [stdout] 807fb2b9720606f342a88a31d5412c11704b5aabf5a6e680c85755988748ec4c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 798d76525ead6d96298ab03f410d189af1a49d140dedd9e141615f826d0d3654
[INFO] running `Command { std: "docker" "start" "-a" "798d76525ead6d96298ab03f410d189af1a49d140dedd9e141615f826d0d3654", kill_on_drop: false }`
[INFO] [stderr]    Compiling array_list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:86:21
[INFO] [stdout]    |
[INFO] [stdout] 86 |                 let mut new_head = &mut self.nodes[n as usize];
[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/main.rs:103:21
[INFO] [stdout]     |
[INFO] [stdout] 103 |                 let mut new_free = &mut self.nodes[n as usize];
[INFO] [stdout]     |                     ----^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `free`, `push`, and `pop` are never used
[INFO] [stdout]   --> src/main.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | / impl<'a, T> List<'a, T>
[INFO] [stdout] 23 | | where
[INFO] [stdout] 24 | |     T: Copy + PartialOrd,
[INFO] [stdout]    | |_________________________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 50 |       fn free(&mut self, i: u8) {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 82 |       fn push(&mut self, v: T) {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 98 |       fn pop(&mut self) -> T {
[INFO] [stdout]    |          ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:121:9
[INFO] [stdout]     |
[INFO] [stdout] 121 |         write!(f, "List :");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 121 |         let _ = write!(f, "List :");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:124:13
[INFO] [stdout]     |
[INFO] [stdout] 124 |             write!(f, "{:?}, ", self.nodes[i as usize].data);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 124 |             let _ = write!(f, "{:?}, ", self.nodes[i as usize].data);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static
[INFO] [stdout]    --> src/main.rs:137:39
[INFO] [stdout]     |
[INFO] [stdout] 137 |     let mut list = List::new(unsafe { &mut NODES });
[INFO] [stdout]     |                                       ^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]     = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout]     = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] help: use `&raw mut` instead to create a raw pointer
[INFO] [stdout]     |
[INFO] [stdout] 137 |     let mut list = List::new(unsafe { &raw mut NODES });
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "798d76525ead6d96298ab03f410d189af1a49d140dedd9e141615f826d0d3654", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "798d76525ead6d96298ab03f410d189af1a49d140dedd9e141615f826d0d3654", kill_on_drop: false }`
[INFO] [stdout] 798d76525ead6d96298ab03f410d189af1a49d140dedd9e141615f826d0d3654
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3477197dc4c405b4a3ecef4f0cc689ea2ef1be04b53323e55c125be6633c2f63
[INFO] running `Command { std: "docker" "start" "-a" "3477197dc4c405b4a3ecef4f0cc689ea2ef1be04b53323e55c125be6633c2f63", kill_on_drop: false }`
[INFO] [stderr]    Compiling array_list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the trait bound `Node<'static, Option<i32>>: Copy` is not satisfied
[INFO] [stdout]  --> examples/error.rs:7:41
[INFO] [stdout]   |
[INFO] [stdout] 7 | static mut A: [Node<Option<i32>>; 4] = [Node { data: &None }; 4];
[INFO] [stdout]   |                                         ^^^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `Node<'static, Option<i32>>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: the `Copy` trait is required because this value will be copied for each element of the array
[INFO] [stdout]   = help: consider using `core::array::from_fn` to initialize the array
[INFO] [stdout]   = help: see https://doc.rust-lang.org/stable/std/array/fn.from_fn.html for more information
[INFO] [stdout] help: consider annotating `Node<'static, Option<i32>>` with `#[derive(Copy)]`
[INFO] [stdout]   |
[INFO] [stdout] 4 + #[derive(Copy)]
[INFO] [stdout] 5 | struct Node<'a, T> {
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `array_list` (example "error") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:86:21
[INFO] [stdout]    |
[INFO] [stdout] 86 |                 let mut new_head = &mut self.nodes[n as usize];
[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/main.rs:103:21
[INFO] [stdout]     |
[INFO] [stdout] 103 |                 let mut new_free = &mut self.nodes[n as usize];
[INFO] [stdout]     |                     ----^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `free`, `push`, and `pop` are never used
[INFO] [stdout]   --> src/main.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | / impl<'a, T> List<'a, T>
[INFO] [stdout] 23 | | where
[INFO] [stdout] 24 | |     T: Copy + PartialOrd,
[INFO] [stdout]    | |_________________________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 50 |       fn free(&mut self, i: u8) {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 82 |       fn push(&mut self, v: T) {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 98 |       fn pop(&mut self) -> T {
[INFO] [stdout]    |          ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:121:9
[INFO] [stdout]     |
[INFO] [stdout] 121 |         write!(f, "List :");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 121 |         let _ = write!(f, "List :");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:124:13
[INFO] [stdout]     |
[INFO] [stdout] 124 |             write!(f, "{:?}, ", self.nodes[i as usize].data);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 124 |             let _ = write!(f, "{:?}, ", self.nodes[i as usize].data);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static
[INFO] [stdout]    --> src/main.rs:137:39
[INFO] [stdout]     |
[INFO] [stdout] 137 |     let mut list = List::new(unsafe { &mut NODES });
[INFO] [stdout]     |                                       ^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]     = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout]     = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] help: use `&raw mut` instead to create a raw pointer
[INFO] [stdout]     |
[INFO] [stdout] 137 |     let mut list = List::new(unsafe { &raw mut NODES });
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3477197dc4c405b4a3ecef4f0cc689ea2ef1be04b53323e55c125be6633c2f63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3477197dc4c405b4a3ecef4f0cc689ea2ef1be04b53323e55c125be6633c2f63", kill_on_drop: false }`
[INFO] [stdout] 3477197dc4c405b4a3ecef4f0cc689ea2ef1be04b53323e55c125be6633c2f63
