[INFO] fetching crate eventify 0.1.0-alpha.0...
[INFO] testing eventify-0.1.0-alpha.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate eventify 0.1.0-alpha.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate eventify 0.1.0-alpha.0
[INFO] finished tweaking crates.io crate eventify 0.1.0-alpha.0
[INFO] tweaked toml for crates.io crate eventify 0.1.0-alpha.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate eventify 0.1.0-alpha.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate eventify 0.1.0-alpha.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a85655658a5fa3d0a8af19363954d0be2c7247a8f376999dfc6018be4431e713
[INFO] running `Command { std: "docker" "start" "-a" "a85655658a5fa3d0a8af19363954d0be2c7247a8f376999dfc6018be4431e713", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a85655658a5fa3d0a8af19363954d0be2c7247a8f376999dfc6018be4431e713", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a85655658a5fa3d0a8af19363954d0be2c7247a8f376999dfc6018be4431e713", kill_on_drop: false }`
[INFO] [stdout] a85655658a5fa3d0a8af19363954d0be2c7247a8f376999dfc6018be4431e713
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6139b26fad2e543c4734028bb8de0dd3de934c70feb2ed2a66906ee4c360aa80
[INFO] running `Command { std: "docker" "start" "-a" "6139b26fad2e543c4734028bb8de0dd3de934c70feb2ed2a66906ee4c360aa80", kill_on_drop: false }`
[INFO] [stderr]    Compiling eventify v0.1.0-alpha.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/property.rs:81:18
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn write(&self) -> LockResult<PropertyWriteGuard<T>> {
[INFO] [stdout]    |                  ^^^^^                ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn write(&self) -> LockResult<PropertyWriteGuard<'_, T>> {
[INFO] [stdout]    |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/property.rs:257:18
[INFO] [stdout]     |
[INFO] [stdout] 257 |     pub fn write(&self) -> LockResult<BindingWriteGuard<T>> {
[INFO] [stdout]     |                  ^^^^^                ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 257 |     pub fn write(&self) -> LockResult<BindingWriteGuard<'_, T>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "6139b26fad2e543c4734028bb8de0dd3de934c70feb2ed2a66906ee4c360aa80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6139b26fad2e543c4734028bb8de0dd3de934c70feb2ed2a66906ee4c360aa80", kill_on_drop: false }`
[INFO] [stdout] 6139b26fad2e543c4734028bb8de0dd3de934c70feb2ed2a66906ee4c360aa80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6e59ef4629c7e693965d2736bdf7901cf5d46878aec5656aad39125118a37fe
[INFO] running `Command { std: "docker" "start" "-a" "c6e59ef4629c7e693965d2736bdf7901cf5d46878aec5656aad39125118a37fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling eventify v0.1.0-alpha.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/property.rs:81:18
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn write(&self) -> LockResult<PropertyWriteGuard<T>> {
[INFO] [stdout]    |                  ^^^^^                ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn write(&self) -> LockResult<PropertyWriteGuard<'_, T>> {
[INFO] [stdout]    |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/property.rs:257:18
[INFO] [stdout]     |
[INFO] [stdout] 257 |     pub fn write(&self) -> LockResult<BindingWriteGuard<T>> {
[INFO] [stdout]     |                  ^^^^^                ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 257 |     pub fn write(&self) -> LockResult<BindingWriteGuard<'_, T>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/property.rs:81:18
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn write(&self) -> LockResult<PropertyWriteGuard<T>> {
[INFO] [stdout]    |                  ^^^^^                ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn write(&self) -> LockResult<PropertyWriteGuard<'_, T>> {
[INFO] [stdout]    |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/property.rs:257:18
[INFO] [stdout]     |
[INFO] [stdout] 257 |     pub fn write(&self) -> LockResult<BindingWriteGuard<T>> {
[INFO] [stdout]     |                  ^^^^^                ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 257 |     pub fn write(&self) -> LockResult<BindingWriteGuard<'_, T>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `binding`
[INFO] [stdout]   --> examples/property.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let binding = property.bind(|value| {
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_binding`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "c6e59ef4629c7e693965d2736bdf7901cf5d46878aec5656aad39125118a37fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6e59ef4629c7e693965d2736bdf7901cf5d46878aec5656aad39125118a37fe", kill_on_drop: false }`
[INFO] [stdout] c6e59ef4629c7e693965d2736bdf7901cf5d46878aec5656aad39125118a37fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 593a75d8385ccc65884b365bbab7a26db38c65ff792d93809127db96244e87bc
[INFO] running `Command { std: "docker" "start" "-a" "593a75d8385ccc65884b365bbab7a26db38c65ff792d93809127db96244e87bc", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/property.rs:81:18
[INFO] [stderr]    |
[INFO] [stderr] 81 |     pub fn write(&self) -> LockResult<PropertyWriteGuard<T>> {
[INFO] [stderr]    |                  ^^^^^                ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 81 |     pub fn write(&self) -> LockResult<PropertyWriteGuard<'_, T>> {
[INFO] [stderr]    |                                                          +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/property.rs:257:18
[INFO] [stderr]     |
[INFO] [stderr] 257 |     pub fn write(&self) -> LockResult<BindingWriteGuard<T>> {
[INFO] [stderr]     |                  ^^^^^                ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 257 |     pub fn write(&self) -> LockResult<BindingWriteGuard<'_, T>> {
[INFO] [stderr]     |                                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: `eventify` (lib) generated 2 warnings (run `cargo fix --lib -p eventify` to apply 2 suggestions)
[INFO] [stderr] warning: unused variable: `binding`
[INFO] [stderr]   --> examples/property.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let binding = property.bind(|value| {
[INFO] [stderr]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_binding`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `eventify` (example "property") generated 1 warning (run `cargo fix --example "property" -p eventify` to apply 1 suggestion)
[INFO] [stderr] warning: `eventify` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/eventify-00db82a614762978)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests eventify
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/event.rs - event::Event (line 28) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.21s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "593a75d8385ccc65884b365bbab7a26db38c65ff792d93809127db96244e87bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "593a75d8385ccc65884b365bbab7a26db38c65ff792d93809127db96244e87bc", kill_on_drop: false }`
[INFO] [stdout] 593a75d8385ccc65884b365bbab7a26db38c65ff792d93809127db96244e87bc