[INFO] cloning repository https://github.com/luojia65/brainfuck
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luojia65/brainfuck" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluojia65%2Fbrainfuck", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluojia65%2Fbrainfuck'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4a8d1530f856eeb6d582c1bcf9a43ed2e160a748
[INFO] building luojia65/brainfuck against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluojia65%2Fbrainfuck" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/luojia65/brainfuck on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/luojia65/brainfuck
[INFO] finished tweaking git repo https://github.com/luojia65/brainfuck
[INFO] tweaked toml for git repo https://github.com/luojia65/brainfuck written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/luojia65/brainfuck 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 04a7fda12a89b6b7446330569de2622ac2d78e49b47a00e7a93e41f5de452e35
[INFO] running `Command { std: "docker" "start" "-a" "04a7fda12a89b6b7446330569de2622ac2d78e49b47a00e7a93e41f5de452e35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04a7fda12a89b6b7446330569de2622ac2d78e49b47a00e7a93e41f5de452e35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04a7fda12a89b6b7446330569de2622ac2d78e49b47a00e7a93e41f5de452e35", kill_on_drop: false }`
[INFO] [stdout] 04a7fda12a89b6b7446330569de2622ac2d78e49b47a00e7a93e41f5de452e35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=forbid -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d3cccf3ca97027104755095ebd77d308b6fd679474df7dd762044108e82c500
[INFO] running `Command { std: "docker" "start" "-a" "7d3cccf3ca97027104755095ebd77d308b6fd679474df7dd762044108e82c500", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling brainfuck v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(crate_visibility_modifier)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in favor of `pub(crate)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `!` or `::`, found keyword `fn`
[INFO] [stdout]   --> src/program.rs:20:11
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Program {
[INFO] [stdout]    |              - while parsing this item list starting here
[INFO] [stdout] ...
[INFO] [stdout] 20 |     crate fn ops(&self) -> Rc<Vec<Operator>> {
[INFO] [stdout]    |           ^^ expected one of `!` or `::`
[INFO] [stdout] ...
[INFO] [stdout] 29 | }
[INFO] [stdout]    | - the item list ends here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/process.rs:19:16
[INFO] [stdout]    |
[INFO] [stdout] 19 |     input: Box<Read>,
[INFO] [stdout]    |                ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 19 |     input: Box<dyn Read>,
[INFO] [stdout]    |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/process.rs:20:17
[INFO] [stdout]    |
[INFO] [stdout] 20 |     output: Box<Write>,
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 20 |     output: Box<dyn Write>,
[INFO] [stdout]    |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ops` found for struct `Program` in the current scope
[INFO] [stdout]   --> src/process.rs:41:26
[INFO] [stdout]    |
[INFO] [stdout] 41 |             ops: program.ops(),
[INFO] [stdout]    |                          ^^^ private field, not a method
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/program.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct Program {
[INFO] [stdout]    | ------------------ method `ops` not found for this struct
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `deepest_loop` found for struct `Program` in the current scope
[INFO] [stdout]   --> src/process.rs:45:56
[INFO] [stdout]    |
[INFO] [stdout] 45 |             loop_ptr_stack: Vec::with_capacity(program.deepest_loop()),
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^ private field, not a method
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/program.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct Program {
[INFO] [stdout]    | ------------------ method `deepest_loop` not found for this struct
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0557, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `brainfuck` (lib) due to 4 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "7d3cccf3ca97027104755095ebd77d308b6fd679474df7dd762044108e82c500", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d3cccf3ca97027104755095ebd77d308b6fd679474df7dd762044108e82c500", kill_on_drop: false }`
[INFO] [stdout] 7d3cccf3ca97027104755095ebd77d308b6fd679474df7dd762044108e82c500