[INFO] cloning repository https://github.com/Tezerrr/mtuci-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Tezerrr/mtuci-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTezerrr%2Fmtuci-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTezerrr%2Fmtuci-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6022049a59cdba485cb07dddf77a344cf71e6b3d
[INFO] checking Tezerrr/mtuci-rs against master#17ffbc81a30c094193836a5d7f90dff273b5df93 for pr-138785
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTezerrr%2Fmtuci-rs" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Tezerrr/mtuci-rs on toolchain 17ffbc81a30c094193836a5d7f90dff273b5df93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+17ffbc81a30c094193836a5d7f90dff273b5df93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Tezerrr/mtuci-rs
[INFO] finished tweaking git repo https://github.com/Tezerrr/mtuci-rs
[INFO] tweaked toml for git repo https://github.com/Tezerrr/mtuci-rs written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Tezerrr/mtuci-rs 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" "+17ffbc81a30c094193836a5d7f90dff273b5df93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+17ffbc81a30c094193836a5d7f90dff273b5df93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 410a3447c3c0b1806f9697097438daf87aa7e1e0f57df2b1c145c91aaeb33e31
[INFO] running `Command { std: "docker" "start" "-a" "410a3447c3c0b1806f9697097438daf87aa7e1e0f57df2b1c145c91aaeb33e31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "410a3447c3c0b1806f9697097438daf87aa7e1e0f57df2b1c145c91aaeb33e31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "410a3447c3c0b1806f9697097438daf87aa7e1e0f57df2b1c145c91aaeb33e31", kill_on_drop: false }`
[INFO] [stdout] 410a3447c3c0b1806f9697097438daf87aa7e1e0f57df2b1c145c91aaeb33e31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+17ffbc81a30c094193836a5d7f90dff273b5df93" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f62cdd692b20ade36e2ceec24d6d50af5fe38db5dc50804c27f433a89120efc
[INFO] running `Command { std: "docker" "start" "-a" "7f62cdd692b20ade36e2ceec24d6d50af5fe38db5dc50804c27f433a89120efc", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling anyhow v1.0.71
[INFO] [stderr]     Checking hw4 v0.1.0 (/opt/rustwide/workdir/hw4)
[INFO] [stdout] error[E0435]: attempt to use a non-constant value in a constant
[INFO] [stdout]   --> hw4/src/myvec.rs:16:49
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn with_capacity(capacity: usize) -> Self {
[INFO] [stdout]    |                      -------- this would need to be a `const`
[INFO] [stdout] 15 |         MyVec {
[INFO] [stdout] 16 |             data: Box::new([Default::default(); capacity]),
[INFO] [stdout]    |                                                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0435]: attempt to use a non-constant value in a constant
[INFO] [stdout]   --> hw4/src/myvec.rs:60:68
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn resize(&mut self, new_size: usize) {
[INFO] [stdout]    |                          -------- this would need to be a `const`
[INFO] [stdout] 60 |         let mut new_data: Box<[T]> = Box::new([Default::default(); new_size]);
[INFO] [stdout]    |                                                                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `myvec`
[INFO] [stdout]   --> hw4/src/myvec.rs:66:2
[INFO] [stdout]    |
[INFO] [stdout] 66 | }
[INFO] [stdout]    |  ^ consider adding a `main` function to `hw4/src/myvec.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0435]: attempt to use a non-constant value in a constant
[INFO] [stdout]   --> hw4/src/myvec.rs:16:49
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn with_capacity(capacity: usize) -> Self {
[INFO] [stdout]    |                      -------- this would need to be a `const`
[INFO] [stdout] 15 |         MyVec {
[INFO] [stdout] 16 |             data: Box::new([Default::default(); capacity]),
[INFO] [stdout]    |                                                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0435]: attempt to use a non-constant value in a constant
[INFO] [stdout]   --> hw4/src/myvec.rs:60:68
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn resize(&mut self, new_size: usize) {
[INFO] [stdout]    |                          -------- this would need to be a `const`
[INFO] [stdout] 60 |         let mut new_data: Box<[T]> = Box::new([Default::default(); new_size]);
[INFO] [stdout]    |                                                                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `T: Copy` is not satisfied
[INFO] [stdout]   --> hw4/src/myvec.rs:16:29
[INFO] [stdout]    |
[INFO] [stdout] 16 |             data: Box::new([Default::default(); capacity]),
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `T`
[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 restricting type parameter `T` with trait `Copy`
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<T: std::marker::Copy> MyVec<T> {
[INFO] [stdout]    |       +++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `T: Copy` is not satisfied
[INFO] [stdout]   --> hw4/src/myvec.rs:16:29
[INFO] [stdout]    |
[INFO] [stdout] 16 |             data: Box::new([Default::default(); capacity]),
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `T`
[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 restricting type parameter `T` with trait `Copy`
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<T: std::marker::Copy> MyVec<T> {
[INFO] [stdout]    |       +++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `T: Default` is not satisfied
[INFO] [stdout]   --> hw4/src/myvec.rs:16:29
[INFO] [stdout]    |
[INFO] [stdout] 16 |             data: Box::new([Default::default(); capacity]),
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^ the trait `Default` is not implemented for `T`
[INFO] [stdout]    |
[INFO] [stdout] help: consider restricting type parameter `T` with trait `Default`
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<T: std::default::Default> MyVec<T> {
[INFO] [stdout]    |       +++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `T: Default` is not satisfied
[INFO] [stdout]   --> hw4/src/myvec.rs:16:29
[INFO] [stdout]    |
[INFO] [stdout] 16 |             data: Box::new([Default::default(); capacity]),
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^ the trait `Default` is not implemented for `T`
[INFO] [stdout]    |
[INFO] [stdout] help: consider restricting type parameter `T` with trait `Default`
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<T: std::default::Default> MyVec<T> {
[INFO] [stdout]    |       +++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `T: Default` is not satisfied
[INFO] [stdout]   --> hw4/src/myvec.rs:32:63
[INFO] [stdout]    |
[INFO] [stdout] 32 |             Some(std::mem::replace(&mut self.data[self.size], Default::default()))
[INFO] [stdout]    |                                                               ^^^^^^^^^^^^^^^^^^ the trait `Default` is not implemented for `T`
[INFO] [stdout]    |
[INFO] [stdout] help: consider restricting type parameter `T` with trait `Default`
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<T: std::default::Default> MyVec<T> {
[INFO] [stdout]    |       +++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `T: Default` is not satisfied
[INFO] [stdout]   --> hw4/src/myvec.rs:41:73
[INFO] [stdout]    |
[INFO] [stdout] 41 |             let removed_item = std::mem::replace(&mut self.data[index], Default::default());
[INFO] [stdout]    |                                                                         ^^^^^^^^^^^^^^^^^^ the trait `Default` is not implemented for `T`
[INFO] [stdout]    |
[INFO] [stdout] help: consider restricting type parameter `T` with trait `Default`
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<T: std::default::Default> MyVec<T> {
[INFO] [stdout]    |       +++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `T: Default` is not satisfied
[INFO] [stdout]   --> hw4/src/myvec.rs:32:63
[INFO] [stdout]    |
[INFO] [stdout] 32 |             Some(std::mem::replace(&mut self.data[self.size], Default::default()))
[INFO] [stdout]    |                                                               ^^^^^^^^^^^^^^^^^^ the trait `Default` is not implemented for `T`
[INFO] [stdout]    |
[INFO] [stdout] help: consider restricting type parameter `T` with trait `Default`
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<T: std::default::Default> MyVec<T> {
[INFO] [stdout]    |       +++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `T: Default` is not satisfied
[INFO] [stdout]   --> hw4/src/myvec.rs:43:73
[INFO] [stdout]    |
[INFO] [stdout] 43 |                 self.data[i] = std::mem::replace(&mut self.data[i + 1], Default::default());
[INFO] [stdout]    |                                                                         ^^^^^^^^^^^^^^^^^^ the trait `Default` is not implemented for `T`
[INFO] [stdout]    |
[INFO] [stdout] help: consider restricting type parameter `T` with trait `Default`
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<T: std::default::Default> MyVec<T> {
[INFO] [stdout]    |       +++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `T: Default` is not satisfied
[INFO] [stdout]   --> hw4/src/myvec.rs:41:73
[INFO] [stdout]    |
[INFO] [stdout] 41 |             let removed_item = std::mem::replace(&mut self.data[index], Default::default());
[INFO] [stdout]    |                                                                         ^^^^^^^^^^^^^^^^^^ the trait `Default` is not implemented for `T`
[INFO] [stdout]    |
[INFO] [stdout] help: consider restricting type parameter `T` with trait `Default`
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<T: std::default::Default> MyVec<T> {
[INFO] [stdout]    |       +++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `T: Default` is not satisfied
[INFO] [stdout]   --> hw4/src/myvec.rs:43:73
[INFO] [stdout]    |
[INFO] [stdout] 43 |                 self.data[i] = std::mem::replace(&mut self.data[i + 1], Default::default());
[INFO] [stdout]    |                                                                         ^^^^^^^^^^^^^^^^^^ the trait `Default` is not implemented for `T`
[INFO] [stdout]    |
[INFO] [stdout] help: consider restricting type parameter `T` with trait `Default`
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<T: std::default::Default> MyVec<T> {
[INFO] [stdout]    |       +++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `T: Copy` is not satisfied
[INFO] [stdout]   --> hw4/src/myvec.rs:60:48
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let mut new_data: Box<[T]> = Box::new([Default::default(); new_size]);
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `T`
[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 restricting type parameter `T` with trait `Copy`
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<T: std::marker::Copy> MyVec<T> {
[INFO] [stdout]    |       +++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `T: Default` is not satisfied
[INFO] [stdout]   --> hw4/src/myvec.rs:60:48
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let mut new_data: Box<[T]> = Box::new([Default::default(); new_size]);
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^ the trait `Default` is not implemented for `T`
[INFO] [stdout]    |
[INFO] [stdout] help: consider restricting type parameter `T` with trait `Default`
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<T: std::default::Default> MyVec<T> {
[INFO] [stdout]    |       +++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `T: Copy` is not satisfied
[INFO] [stdout]   --> hw4/src/myvec.rs:60:48
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let mut new_data: Box<[T]> = Box::new([Default::default(); new_size]);
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `T`
[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 restricting type parameter `T` with trait `Copy`
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<T: std::marker::Copy> MyVec<T> {
[INFO] [stdout]    |       +++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `T: Default` is not satisfied
[INFO] [stdout]   --> hw4/src/myvec.rs:60:48
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let mut new_data: Box<[T]> = Box::new([Default::default(); new_size]);
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^ the trait `Default` is not implemented for `T`
[INFO] [stdout]    |
[INFO] [stdout] help: consider restricting type parameter `T` with trait `Default`
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<T: std::default::Default> MyVec<T> {
[INFO] [stdout]    |       +++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0435.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0435, E0601.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hw4` (bin "myvec") due to 10 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `hw4` (bin "myvec" test) due to 9 previous errors
[INFO] running `Command { std: "docker" "inspect" "7f62cdd692b20ade36e2ceec24d6d50af5fe38db5dc50804c27f433a89120efc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f62cdd692b20ade36e2ceec24d6d50af5fe38db5dc50804c27f433a89120efc", kill_on_drop: false }`
[INFO] [stdout] 7f62cdd692b20ade36e2ceec24d6d50af5fe38db5dc50804c27f433a89120efc