[INFO] fetching crate morphism 0.4.1...
[INFO] checking morphism-0.4.1 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate morphism 0.4.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate morphism 0.4.1 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate morphism 0.4.1
[INFO] finished tweaking crates.io crate morphism 0.4.1
[INFO] tweaked toml for crates.io crate morphism 0.4.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 30318fd5c5ed91f1e2bb1c3612e0dfe18321a8ed0033dbfb0610d00df343ff3f
[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" "30318fd5c5ed91f1e2bb1c3612e0dfe18321a8ed0033dbfb0610d00df343ff3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30318fd5c5ed91f1e2bb1c3612e0dfe18321a8ed0033dbfb0610d00df343ff3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30318fd5c5ed91f1e2bb1c3612e0dfe18321a8ed0033dbfb0610d00df343ff3f", kill_on_drop: false }`
[INFO] [stdout] 30318fd5c5ed91f1e2bb1c3612e0dfe18321a8ed0033dbfb0610d00df343ff3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 98ae57588c3e79488f20054637dba4605706133883b732250e8977c67240bd5d
[INFO] running `Command { std: "docker" "start" "-a" "98ae57588c3e79488f20054637dba4605706133883b732250e8977c67240bd5d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking morphism v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:33:35
[INFO] [stdout]    |
[INFO] [stdout] 33 |     mfns: LinkedList<VecDeque<Box<Fn(*const ()) -> *const () + 'a>>>,
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(*const ()) -> *const () + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:33:35
[INFO] [stdout]    |
[INFO] [stdout] 33 |     mfns: LinkedList<VecDeque<Box<Fn(*const ()) -> *const () + 'a>>>,
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(*const ()) -> *const () + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused closure that must be used
[INFO] [stdout]   --> benches/bench.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         (|| {});
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: closures are lazy and do nothing unless called
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused boxed closure that must be used
[INFO] [stdout]   --> benches/bench.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         (Box::new(|| {}));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: closures are lazy and do nothing unless called
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: type `morphism::Void` is private
[INFO] [stdout]   --> benches/bench.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         Morphism::new::<()>();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^ private type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: type `morphism::Void` is private
[INFO] [stdout]   --> benches/bench.rs:31:18
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let f = &mut Morphism::new::<()>();
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^ private type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: type `morphism::Void` is private
[INFO] [stdout]   --> benches/bench.rs:39:18
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let f = &mut Morphism::new::<()>();
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^ private type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: type `morphism::Void` is private
[INFO] [stdout]   --> benches/bench.rs:49:18
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let f = &mut Morphism::new::<()>();
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^ private type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: type `morphism::Void` is private
[INFO] [stdout]   --> benches/bench.rs:59:18
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let f = &mut Morphism::new::<()>();
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^ private type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: type `morphism::Void` is private
[INFO] [stdout]   --> benches/bench.rs:69:18
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let f = &mut Morphism::new::<()>();
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^ private type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: type `morphism::Void` is private
[INFO] [stdout]   --> benches/bench.rs:77:18
[INFO] [stdout]    |
[INFO] [stdout] 77 |     let f = &mut Morphism::new::<()>();
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^ private type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: type `morphism::Void` is private
[INFO] [stdout]   --> benches/bench.rs:87:18
[INFO] [stdout]    |
[INFO] [stdout] 87 |     let f = &mut Morphism::new::<()>();
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^ private type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: type `morphism::Void` is private
[INFO] [stdout]   --> benches/bench.rs:97:18
[INFO] [stdout]    |
[INFO] [stdout] 97 |     let f = &mut Morphism::new::<()>();
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^ private type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: type `morphism::Void` is private
[INFO] [stdout]    --> benches/bench.rs:123:13
[INFO] [stdout]     |
[INFO] [stdout] 123 |     let f = Morphism::new::<()>().tail(|_| {});
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^ private type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: type `morphism::Void` is private
[INFO] [stdout]    --> benches/bench.rs:131:17
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let mut f = Morphism::new::<()>();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^ private type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: type `morphism::Void` is private
[INFO] [stdout]    --> benches/bench.rs:142:17
[INFO] [stdout]     |
[INFO] [stdout] 142 |     let mut f = Morphism::new::<()>();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^ private type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: type `morphism::Void` is private
[INFO] [stdout]    --> benches/bench.rs:153:17
[INFO] [stdout]     |
[INFO] [stdout] 153 |     let mut f = Morphism::new::<()>();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^ private type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 13 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `morphism`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "98ae57588c3e79488f20054637dba4605706133883b732250e8977c67240bd5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98ae57588c3e79488f20054637dba4605706133883b732250e8977c67240bd5d", kill_on_drop: false }`
[INFO] [stdout] 98ae57588c3e79488f20054637dba4605706133883b732250e8977c67240bd5d