[INFO] fetching crate term_fb 0.0.1...
[INFO] testing term_fb-0.0.1 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate term_fb 0.0.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate term_fb 0.0.1
[INFO] finished tweaking crates.io crate term_fb 0.0.1
[INFO] tweaked toml for crates.io crate term_fb 0.0.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate term_fb 0.0.1 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 49 packages to latest compatible versions
[INFO] [stderr]       Adding crossbeam v0.6.0 (available: v0.8.4)
[INFO] [stderr]       Adding itoa v0.4.8 (available: v1.0.15)
[INFO] [stderr]       Adding ryu v0.2.8 (available: v1.0.20)
[INFO] [stderr]       Adding spin_sleep v0.3.7 (available: v1.3.3)
[INFO] [stderr]       Adding unicode-width v0.1.14 (available: v0.2.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5bc4adce7ff0ae507fe7f1d8f0ad72a3081da697587e0af96a70619cd784126b
[INFO] running `Command { std: "docker" "start" "-a" "5bc4adce7ff0ae507fe7f1d8f0ad72a3081da697587e0af96a70619cd784126b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5bc4adce7ff0ae507fe7f1d8f0ad72a3081da697587e0af96a70619cd784126b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bc4adce7ff0ae507fe7f1d8f0ad72a3081da697587e0af96a70619cd784126b", kill_on_drop: false }`
[INFO] [stdout] 5bc4adce7ff0ae507fe7f1d8f0ad72a3081da697587e0af96a70619cd784126b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df679786c1c8d74d8b22cb207711f6756e94889a81cfcb892fb91cad7a454263
[INFO] running `Command { std: "docker" "start" "-a" "df679786c1c8d74d8b22cb207711f6756e94889a81cfcb892fb91cad7a454263", kill_on_drop: false }`
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling stable_deref_trait v1.2.1
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]    Compiling termios v0.3.3
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]    Compiling spin_sleep v0.3.7
[INFO] [stderr]    Compiling lock_api v0.1.5
[INFO] [stderr]    Compiling crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling crossbeam v0.6.0
[INFO] [stderr]    Compiling term_fb v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(duration_float)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(range_contains)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> src/buf.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/input_parser.rs:77:26
[INFO] [stdout]    |
[INFO] [stdout] 77 |                 ch @ ' ' ... '~' => InputKey::AsciiPrintable(ch),
[INFO] [stdout]    |                          ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/input_parser.rs:87:29
[INFO] [stdout]    |
[INFO] [stdout] 87 |                 ch @ '\x00' ... '\x1f' => InputKey::AsciiControl(std::char::from_u32((ch as u32) + 0x40).expect("Always succeeds.")),
[INFO] [stdout]    |                             ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `duration_float` has been stable since 1.38.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(duration_float)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `range_contains` has been stable since 1.35.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(range_contains)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_float_secs` found for struct `Duration` in the current scope
[INFO] [stdout]   --> src/sim_loop.rs:34:50
[INFO] [stdout]    |
[INFO] [stdout] 34 |                 buf.blit_float(1.0/loop_duration.as_float_secs(), 1, fps_xy);
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `as_secs` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 34 -                 buf.blit_float(1.0/loop_duration.as_float_secs(), 1, fps_xy);
[INFO] [stdout] 34 +                 buf.blit_float(1.0/loop_duration.as_secs(), 1, fps_xy);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: expected a `FnMut()` closure, found `Chars<'_>`
[INFO] [stdout]    --> src/buf.rs:156:54
[INFO] [stdout]     |
[INFO] [stdout] 156 |         self.store[start_index..end_index].fill_with(text.chars());
[INFO] [stdout]     |                                            --------- ^^^^^^^^^^^^ expected an `FnMut()` closure, found `Chars<'_>`
[INFO] [stdout]     |                                            |
[INFO] [stdout]     |                                            required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FnMut()` is not implemented for `Chars<'_>`
[INFO] [stdout]     = note: wrap the `Chars<'_>` in a closure with no arguments: `|| { /* code */ }`
[INFO] [stdout] note: required by a bound in `core::slice::<impl [T]>::fill_with`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/slice/mod.rs:3726:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: expected a `FnMut()` closure, found `Chars<'_>`
[INFO] [stdout]    --> src/buf.rs:168:54
[INFO] [stdout]     |
[INFO] [stdout] 168 |         self.store[start_index..end_index].fill_with(text.chars());
[INFO] [stdout]     |                                            --------- ^^^^^^^^^^^^ expected an `FnMut()` closure, found `Chars<'_>`
[INFO] [stdout]     |                                            |
[INFO] [stdout]     |                                            required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FnMut()` is not implemented for `Chars<'_>`
[INFO] [stdout]     = note: wrap the `Chars<'_>` in a closure with no arguments: `|| { /* code */ }`
[INFO] [stdout] note: required by a bound in `core::slice::<impl [T]>::fill_with`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/slice/mod.rs:3726:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: expected a `FnMut()` closure, found `Chars<'_>`
[INFO] [stdout]    --> src/buf.rs:183:54
[INFO] [stdout]     |
[INFO] [stdout] 183 |         self.store[start_index..end_index].fill_with(text.chars());
[INFO] [stdout]     |                                            --------- ^^^^^^^^^^^^ expected an `FnMut()` closure, found `Chars<'_>`
[INFO] [stdout]     |                                            |
[INFO] [stdout]     |                                            required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FnMut()` is not implemented for `Chars<'_>`
[INFO] [stdout]     = note: wrap the `Chars<'_>` in a closure with no arguments: `|| { /* code */ }`
[INFO] [stdout] note: required by a bound in `core::slice::<impl [T]>::fill_with`
[INFO] [stdout]    --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/slice/mod.rs:3726:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/buf.rs:105:50
[INFO] [stdout]     |
[INFO] [stdout] 105 |     pub fn blit_line(&mut self, character: char, mut start: Coord, mut end: Coord) {
[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/buf.rs:105:68
[INFO] [stdout]     |
[INFO] [stdout] 105 |     pub fn blit_line(&mut self, character: char, mut start: Coord, mut end: Coord) {
[INFO] [stdout]     |                                                                    ----^^^
[INFO] [stdout]     |                                                                    |
[INFO] [stdout]     |                                                                    help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `term_fb` (lib) due to 6 previous errors; 7 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "df679786c1c8d74d8b22cb207711f6756e94889a81cfcb892fb91cad7a454263", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df679786c1c8d74d8b22cb207711f6756e94889a81cfcb892fb91cad7a454263", kill_on_drop: false }`
[INFO] [stdout] df679786c1c8d74d8b22cb207711f6756e94889a81cfcb892fb91cad7a454263
