[INFO] cloning repository https://github.com/cohama/pfds
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cohama/pfds" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcohama%2Fpfds", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcohama%2Fpfds'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a81905a7f9b100c348aae02ad954f2a932e25f3d
[INFO] testing cohama/pfds against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcohama%2Fpfds" "/workspace/builds/worker-69/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-69/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cohama/pfds on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cohama/pfds
[INFO] finished tweaking git repo https://github.com/cohama/pfds
[INFO] tweaked toml for git repo https://github.com/cohama/pfds written to /workspace/builds/worker-69/source/Cargo.toml
[INFO] crate git repo https://github.com/cohama/pfds already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e1ec5d7e0009ed65f1d488539c6a91ff29b99d4defd42c6593fc14df248b98d1
[INFO] running `Command { std: "docker" "start" "-a" "e1ec5d7e0009ed65f1d488539c6a91ff29b99d4defd42c6593fc14df248b98d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1ec5d7e0009ed65f1d488539c6a91ff29b99d4defd42c6593fc14df248b98d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1ec5d7e0009ed65f1d488539c6a91ff29b99d4defd42c6593fc14df248b98d1", kill_on_drop: false }`
[INFO] [stdout] e1ec5d7e0009ed65f1d488539c6a91ff29b99d4defd42c6593fc14df248b98d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 188e2412f3f6de7187ccf8f397eac6bbd8950456ee937a6419dde0cb0d2e0ca9
[INFO] running `Command { std: "docker" "start" "-a" "188e2412f3f6de7187ccf8f397eac6bbd8950456ee937a6419dde0cb0d2e0ca9", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.1.40
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling libc v0.2.29
[INFO] [stderr]    Compiling rand v0.3.16
[INFO] [stderr]    Compiling num-integer v0.1.35
[INFO] [stderr]    Compiling num-iter v0.1.34
[INFO] [stderr]    Compiling num-bigint v0.1.40
[INFO] [stderr]    Compiling num-complex v0.1.40
[INFO] [stderr]    Compiling num-rational v0.1.39
[INFO] [stderr]    Compiling num v0.1.40
[INFO] [stderr]    Compiling stopwatch v0.0.7
[INFO] [stderr]    Compiling pfds v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::boxed::FnBox`
[INFO] [stdout]  --> src/impls/redblacktree.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::boxed::FnBox;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^ no `FnBox` in `boxed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(fnbox)]
[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:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(box_syntax)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/impls/binominalheap2.rs:46:21
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub type BHeap<T> = (List<(i32, BinominalTree<T>)>);
[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/impls/redblacktree.rs:39:14
[INFO] [stdout]    |
[INFO] [stdout] 39 |     Func(Box<FnBox() -> TailRec<'a, T> + 'a>)
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox() -> TailRec<'a, T> + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/impls/redblacktree.rs:216:37
[INFO] [stdout]     |
[INFO] [stdout] 216 | ...                   k: Box<FnBox(RedBlackTree<T>, i32, List<T>) -> TailRec<'a, RedBlackTree<T>> + 'a>)
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox(RedBlackTree<T>, i32, List<T>) -> TailRec<'a, RedBlackTree<T>> + 'a`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/impls/redblacktree.rs:251:35
[INFO] [stdout]     |
[INFO] [stdout] 251 | ...                   k: Box<FnBox(RedBlackTree<T>, i32, List<T>) -> RedBlackTree<T> + 'a>)
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox(RedBlackTree<T>, i32, List<T>) -> RedBlackTree<T> + 'a`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pfds` due to 4 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "188e2412f3f6de7187ccf8f397eac6bbd8950456ee937a6419dde0cb0d2e0ca9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "188e2412f3f6de7187ccf8f397eac6bbd8950456ee937a6419dde0cb0d2e0ca9", kill_on_drop: false }`
[INFO] [stdout] 188e2412f3f6de7187ccf8f397eac6bbd8950456ee937a6419dde0cb0d2e0ca9
