[INFO] crate morphism 0.4.1 is already in cache
[INFO] testing morphism-0.4.1 against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] extracting crate morphism 0.4.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate morphism 0.4.1 on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 204241e1b7678ea8ba5efdca992303ec88de100f47a203439dea00abac02e480
[INFO] running `"docker" "start" "-a" "204241e1b7678ea8ba5efdca992303ec88de100f47a203439dea00abac02e480"`
[INFO] [stderr]    Compiling morphism v0.4.1 (/opt/rustwide/workdir)
[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]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(*const ()) -> *const () + 'a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `"docker" "inspect" "204241e1b7678ea8ba5efdca992303ec88de100f47a203439dea00abac02e480"`
[INFO] running `"docker" "rm" "-f" "204241e1b7678ea8ba5efdca992303ec88de100f47a203439dea00abac02e480"`
[INFO] [stdout] 204241e1b7678ea8ba5efdca992303ec88de100f47a203439dea00abac02e480
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c4e4f0e8288369f4e3f7e6f0b81f7422b1e455f7db1c41ccdac27686eec2a1d4
[INFO] running `"docker" "start" "-a" "c4e4f0e8288369f4e3f7e6f0b81f7422b1e455f7db1c41ccdac27686eec2a1d4"`
[INFO] [stderr]    Compiling morphism v0.4.1 (/opt/rustwide/workdir)
[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]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(*const ()) -> *const () + 'a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[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]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(*const ()) -> *const () + 'a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `"docker" "inspect" "c4e4f0e8288369f4e3f7e6f0b81f7422b1e455f7db1c41ccdac27686eec2a1d4"`
[INFO] running `"docker" "rm" "-f" "c4e4f0e8288369f4e3f7e6f0b81f7422b1e455f7db1c41ccdac27686eec2a1d4"`
[INFO] [stdout] c4e4f0e8288369f4e3f7e6f0b81f7422b1e455f7db1c41ccdac27686eec2a1d4
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] df0a3a29606f6fc3a566b80eb1c5c3d96c691e615bafb221a1703c2316fbf501
[INFO] running `"docker" "start" "-a" "df0a3a29606f6fc3a566b80eb1c5c3d96c691e615bafb221a1703c2316fbf501"`
[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]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(*const ()) -> *const () + 'a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[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]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(*const ()) -> *const () + 'a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/morphism-0fe98ffe1c2fdd18
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::readme ... ok
[INFO] [stderr]    Doc-tests morphism
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - Morphism::push_front (line 117) ... FAILED
[INFO] [stdout] test src/lib.rs - Morphism::tail (line 166) ... FAILED
[INFO] [stdout] test src/lib.rs - Morphism::head (line 92) ... FAILED
[INFO] [stdout] test src/lib.rs - Morphism::new (line 44) ... FAILED
[INFO] [stdout] test src/lib.rs - Morphism::push_back (line 191) ... FAILED
[INFO] [stdout] test src/lib.rs - Morphism::then (line 213) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[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::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] ---- 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::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_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::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] 
[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
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `"docker" "inspect" "df0a3a29606f6fc3a566b80eb1c5c3d96c691e615bafb221a1703c2316fbf501"`
[INFO] running `"docker" "rm" "-f" "df0a3a29606f6fc3a566b80eb1c5c3d96c691e615bafb221a1703c2316fbf501"`
[INFO] [stdout] df0a3a29606f6fc3a566b80eb1c5c3d96c691e615bafb221a1703c2316fbf501