[INFO] cloning repository https://github.com/turnage/huff
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/turnage/huff" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fturnage%2Fhuff", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fturnage%2Fhuff'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b21b7735089ed9ccf40795d01327c1ffe77c3de2
[INFO] building turnage/huff against master#881c1ac408d93bb7adaa3a51dabab9266e82eee8 for issue-85264
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fturnage%2Fhuff" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/turnage/huff on toolchain 881c1ac408d93bb7adaa3a51dabab9266e82eee8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/turnage/huff
[INFO] finished tweaking git repo https://github.com/turnage/huff
[INFO] tweaked toml for git repo https://github.com/turnage/huff written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/turnage/huff already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0bc4868929bd6376ec68edac1bdd0b11118dd3589fc1c6cbb92fb0f393e3447a
[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" "0bc4868929bd6376ec68edac1bdd0b11118dd3589fc1c6cbb92fb0f393e3447a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bc4868929bd6376ec68edac1bdd0b11118dd3589fc1c6cbb92fb0f393e3447a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bc4868929bd6376ec68edac1bdd0b11118dd3589fc1c6cbb92fb0f393e3447a", kill_on_drop: false }`
[INFO] [stdout] 0bc4868929bd6376ec68edac1bdd0b11118dd3589fc1c6cbb92fb0f393e3447a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27be0a85df667c6eea6a6fe8c11861e0fa708ca91a40cf3ff7b05ff143fb4adf
[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" "27be0a85df667c6eea6a6fe8c11861e0fa708ca91a40cf3ff7b05ff143fb4adf", kill_on_drop: false }`
[INFO] [stderr]    Compiling huff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/data/heap/binary.rs:16:16
[INFO] [stdout]    |
[INFO] [stdout] 16 |     order: Box<Iterator<Item = usize>>,
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = usize>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` 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 the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/data/heap/binary.rs:32:29
[INFO] [stdout]    |
[INFO] [stdout] 32 |             order: Box::new((1..)),
[INFO] [stdout]    |                             ^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/data/heap/mod.rs:20:27
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl<T: Ord> Iterator for Heap<T> {
[INFO] [stdout]    |                           ^^^^^^^ help: use `dyn`: `dyn Heap<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "27be0a85df667c6eea6a6fe8c11861e0fa708ca91a40cf3ff7b05ff143fb4adf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27be0a85df667c6eea6a6fe8c11861e0fa708ca91a40cf3ff7b05ff143fb4adf", kill_on_drop: false }`
[INFO] [stdout] 27be0a85df667c6eea6a6fe8c11861e0fa708ca91a40cf3ff7b05ff143fb4adf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 442db8ca8d818db513f12863dcf98b57b775f56ca89e0ef54c8c893139ee8ace
[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" "442db8ca8d818db513f12863dcf98b57b775f56ca89e0ef54c8c893139ee8ace", kill_on_drop: false }`
[INFO] [stderr]    Compiling huff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0404]: expected trait, found derive macro `Debug`
[INFO] [stdout]   --> src/data/heap/mod.rs:38:41
[INFO] [stdout]    |
[INFO] [stdout] 38 |         where T: Ord + Copy + Display + Debug,
[INFO] [stdout]    |                                         ^^^^^ not a trait
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this trait instead
[INFO] [stdout]    |
[INFO] [stdout] 34 |     use std::fmt::Debug;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/data/heap/binary.rs:16:16
[INFO] [stdout]    |
[INFO] [stdout] 16 |     order: Box<Iterator<Item = usize>>,
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = usize>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` 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 the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/data/heap/binary.rs:32:29
[INFO] [stdout]    |
[INFO] [stdout] 32 |             order: Box::new((1..)),
[INFO] [stdout]    |                             ^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/data/heap/mod.rs:20:27
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl<T: Ord> Iterator for Heap<T> {
[INFO] [stdout]    |                           ^^^^^^^ help: use `dyn`: `dyn Heap<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0404`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `huff`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "442db8ca8d818db513f12863dcf98b57b775f56ca89e0ef54c8c893139ee8ace", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "442db8ca8d818db513f12863dcf98b57b775f56ca89e0ef54c8c893139ee8ace", kill_on_drop: false }`
[INFO] [stdout] 442db8ca8d818db513f12863dcf98b57b775f56ca89e0ef54c8c893139ee8ace
