[INFO] fetching crate morphism 0.4.1...
[INFO] testing morphism-0.4.1 against 1.60.0 for beta-1.61-1
[INFO] extracting crate morphism 0.4.1 into /workspace/builds/worker-48/source
[INFO] validating manifest of crates.io crate morphism 0.4.1 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-48/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7d16be0010414a1216c7723dc893262cf5766594bd957c22fee3f5fd0f673f5
[INFO] running `Command { std: "docker" "start" "-a" "e7d16be0010414a1216c7723dc893262cf5766594bd957c22fee3f5fd0f673f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7d16be0010414a1216c7723dc893262cf5766594bd957c22fee3f5fd0f673f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7d16be0010414a1216c7723dc893262cf5766594bd957c22fee3f5fd0f673f5", kill_on_drop: false }`
[INFO] [stdout] e7d16be0010414a1216c7723dc893262cf5766594bd957c22fee3f5fd0f673f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 24a7aa03383085ce0db2ad644809825fdbd1949de13431cd625aba2a2ec20327
[INFO] running `Command { std: "docker" "start" "-a" "24a7aa03383085ce0db2ad644809825fdbd1949de13431cd625aba2a2ec20327", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 33 -     mfns: LinkedList<VecDeque<Box<Fn(*const ()) -> *const () + 'a>>>,
[INFO] [stdout] 33 +     mfns: LinkedList<VecDeque<Box<dyn Fn(*const ()) -> *const () + 'a>>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "24a7aa03383085ce0db2ad644809825fdbd1949de13431cd625aba2a2ec20327", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24a7aa03383085ce0db2ad644809825fdbd1949de13431cd625aba2a2ec20327", kill_on_drop: false }`
[INFO] [stdout] 24a7aa03383085ce0db2ad644809825fdbd1949de13431cd625aba2a2ec20327
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b086a7f8ec03a176239c2c39191aa231118f5c3b84c6690cbfaf02dde18511c
[INFO] running `Command { std: "docker" "start" "-a" "3b086a7f8ec03a176239c2c39191aa231118f5c3b84c6690cbfaf02dde18511c", kill_on_drop: false }`
[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]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 33 -     mfns: LinkedList<VecDeque<Box<Fn(*const ()) -> *const () + 'a>>>,
[INFO] [stdout] 33 +     mfns: LinkedList<VecDeque<Box<dyn Fn(*const ()) -> *const () + 'a>>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling morphism v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[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]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 33 -     mfns: LinkedList<VecDeque<Box<Fn(*const ()) -> *const () + 'a>>>,
[INFO] [stdout] 33 +     mfns: LinkedList<VecDeque<Box<dyn Fn(*const ()) -> *const () + 'a>>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `Command { std: "docker" "inspect" "3b086a7f8ec03a176239c2c39191aa231118f5c3b84c6690cbfaf02dde18511c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b086a7f8ec03a176239c2c39191aa231118f5c3b84c6690cbfaf02dde18511c", kill_on_drop: false }`
[INFO] [stdout] 3b086a7f8ec03a176239c2c39191aa231118f5c3b84c6690cbfaf02dde18511c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 89718453bcda596e0a14aa2d9b096f70a786970082bce179050e66f2393d61f3
[INFO] running `Command { std: "docker" "start" "-a" "89718453bcda596e0a14aa2d9b096f70a786970082bce179050e66f2393d61f3", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:33:35
[INFO] [stderr]    |
[INFO] [stderr] 33 |     mfns: LinkedList<VecDeque<Box<Fn(*const ()) -> *const () + 'a>>>,
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 33 -     mfns: LinkedList<VecDeque<Box<Fn(*const ()) -> *const () + 'a>>>,
[INFO] [stderr] 33 +     mfns: LinkedList<VecDeque<Box<dyn Fn(*const ()) -> *const () + 'a>>>,
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: `morphism` (lib) generated 1 warning
[INFO] [stderr] warning: `morphism` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/morphism-3f3906c534063ec4)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests morphism
[INFO] [stdout] test tests::readme ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.19s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - Morphism::new (line 44) ... FAILED
[INFO] [stdout] test src/lib.rs - Morphism::push_front (line 117) ... FAILED
[INFO] [stdout] test src/lib.rs - Morphism::then (line 213) ... FAILED
[INFO] [stdout] test src/lib.rs - Morphism::head (line 92) ... FAILED
[INFO] [stdout] test src/lib.rs - Morphism::push_back (line 191) ... FAILED
[INFO] [stdout] test src/lib.rs - Morphism::tail (line 166) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Morphism::new (line 44) stdout ----
[INFO] [stdout] error: type `morphism::Void` is private
[INFO] [stdout]  --> src/lib.rs:47:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | assert_eq!(Morphism::new::<u64>().run(42u64), 42u64);
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^ private type
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Morphism::push_front (line 117) stdout ----
[INFO] [stdout] error: type `morphism::Void` is private
[INFO] [stdout]  --> src/lib.rs:120:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | let mut f = Morphism::new::<u64>();
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^ private type
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Morphism::then (line 213) stdout ----
[INFO] [stdout] error: type `morphism::Void` is private
[INFO] [stdout]  --> src/lib.rs:216:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | let mut f = Morphism::new::<u64>();
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^ private type
[INFO] [stdout] 
[INFO] [stdout] error: type `morphism::Void` is private
[INFO] [stdout]   --> src/lib.rs:223:13
[INFO] [stdout]    |
[INFO] [stdout] 13 | let mut g = Morphism::new::<Option<u64>>();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ private type
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Morphism::head (line 92) stdout ----
[INFO] [stdout] error: type `morphism::Void` is private
[INFO] [stdout]  --> src/lib.rs:95:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | let f = Morphism::new::<Option<String>>()
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ private type
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Morphism::push_back (line 191) stdout ----
[INFO] [stdout] error: type `morphism::Void` is private
[INFO] [stdout]  --> src/lib.rs:194:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | let mut f = Morphism::new::<u64>();
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^ private type
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Morphism::tail (line 166) stdout ----
[INFO] [stdout] error: type `morphism::Void` is private
[INFO] [stdout]  --> src/lib.rs:169:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | let f = Morphism::new::<u64>()
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^ private type
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - Morphism::head (line 92)
[INFO] [stdout]     src/lib.rs - Morphism::new (line 44)
[INFO] [stdout]     src/lib.rs - Morphism::push_back (line 191)
[INFO] [stdout]     src/lib.rs - Morphism::push_front (line 117)
[INFO] [stdout]     src/lib.rs - Morphism::tail (line 166)
[INFO] [stdout]     src/lib.rs - Morphism::then (line 213)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 6 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "89718453bcda596e0a14aa2d9b096f70a786970082bce179050e66f2393d61f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89718453bcda596e0a14aa2d9b096f70a786970082bce179050e66f2393d61f3", kill_on_drop: false }`
[INFO] [stdout] 89718453bcda596e0a14aa2d9b096f70a786970082bce179050e66f2393d61f3