[INFO] fetching crate nb-executor 0.4.2...
[INFO] building nb-executor-0.4.2 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate nb-executor 0.4.2 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate nb-executor 0.4.2
[INFO] finished tweaking crates.io crate nb-executor 0.4.2
[INFO] tweaked toml for crates.io crate nb-executor 0.4.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate nb-executor 0.4.2 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 31 packages to latest compatible versions
[INFO] [stderr]       Adding bitflags v1.3.2 (available: v2.9.4)
[INFO] [stderr]       Adding heapless v0.7.17 (available: v0.9.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc3696235e870d87f265f05fbd99248bbd6d8c59daad1b8a5e9be1f534c718fb
[INFO] running `Command { std: "docker" "start" "-a" "cc3696235e870d87f265f05fbd99248bbd6d8c59daad1b8a5e9be1f534c718fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc3696235e870d87f265f05fbd99248bbd6d8c59daad1b8a5e9be1f534c718fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc3696235e870d87f265f05fbd99248bbd6d8c59daad1b8a5e9be1f534c718fb", kill_on_drop: false }`
[INFO] [stdout] cc3696235e870d87f265f05fbd99248bbd6d8c59daad1b8a5e9be1f534c718fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68ac5b5608d965a502faaaaf47e8dcf2640bebdc8eee63916b940d4105cd5df7
[INFO] running `Command { std: "docker" "start" "-a" "68ac5b5608d965a502faaaaf47e8dcf2640bebdc8eee63916b940d4105cd5df7", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling nb v1.1.0
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling nb-executor v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:310:18
[INFO] [stdout]     |
[INFO] [stdout] 310 |     pub fn watch(&self) -> Signals<S> {
[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] 310 |     pub fn watch(&self) -> Signals<'_, S> {
[INFO] [stdout]     |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:334:17
[INFO] [stdout]     |
[INFO] [stdout] 334 |     pub fn bind(&self) -> Executor {
[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] 334 |     pub fn bind(&self) -> Executor<'_> {
[INFO] [stdout]     |                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:439:73
[INFO] [stdout]     |
[INFO] [stdout] 439 |     pub fn step<'fut, F, P>(self, future: Pin<&'fut mut F>, park: P) -> Step<F, P>
[INFO] [stdout]     |                                                ----                     ^^^^^^^^^^
[INFO] [stdout]     |                                                |                        |
[INFO] [stdout]     |                                                |                        the same lifetime is hidden here
[INFO] [stdout]     |                                                |                        the same lifetime is hidden here
[INFO] [stdout]     |                                                the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'fut`
[INFO] [stdout]     |
[INFO] [stdout] 439 |     pub fn step<'fut, F, P>(self, future: Pin<&'fut mut F>, park: P) -> Step<'fut, F, P>
[INFO] [stdout]     |                                                                              +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.67s
[INFO] running `Command { std: "docker" "inspect" "68ac5b5608d965a502faaaaf47e8dcf2640bebdc8eee63916b940d4105cd5df7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68ac5b5608d965a502faaaaf47e8dcf2640bebdc8eee63916b940d4105cd5df7", kill_on_drop: false }`
[INFO] [stdout] 68ac5b5608d965a502faaaaf47e8dcf2640bebdc8eee63916b940d4105cd5df7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 95b8dc7246b587501e84057da329d1f8b29570ad3e1fd50bf712d61f7d22983d
[INFO] running `Command { std: "docker" "start" "-a" "95b8dc7246b587501e84057da329d1f8b29570ad3e1fd50bf712d61f7d22983d", kill_on_drop: false }`
[INFO] [stderr]    Compiling nb-executor v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:310:18
[INFO] [stdout]     |
[INFO] [stdout] 310 |     pub fn watch(&self) -> Signals<S> {
[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] 310 |     pub fn watch(&self) -> Signals<'_, S> {
[INFO] [stdout]     |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:334:17
[INFO] [stdout]     |
[INFO] [stdout] 334 |     pub fn bind(&self) -> Executor {
[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] 334 |     pub fn bind(&self) -> Executor<'_> {
[INFO] [stdout]     |                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:439:73
[INFO] [stdout]     |
[INFO] [stdout] 439 |     pub fn step<'fut, F, P>(self, future: Pin<&'fut mut F>, park: P) -> Step<F, P>
[INFO] [stdout]     |                                                ----                     ^^^^^^^^^^
[INFO] [stdout]     |                                                |                        |
[INFO] [stdout]     |                                                |                        the same lifetime is hidden here
[INFO] [stdout]     |                                                |                        the same lifetime is hidden here
[INFO] [stdout]     |                                                the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'fut`
[INFO] [stdout]     |
[INFO] [stdout] 439 |     pub fn step<'fut, F, P>(self, future: Pin<&'fut mut F>, park: P) -> Step<'fut, F, P>
[INFO] [stdout]     |                                                                              +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:310:18
[INFO] [stdout]     |
[INFO] [stdout] 310 |     pub fn watch(&self) -> Signals<S> {
[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] 310 |     pub fn watch(&self) -> Signals<'_, S> {
[INFO] [stdout]     |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:334:17
[INFO] [stdout]     |
[INFO] [stdout] 334 |     pub fn bind(&self) -> Executor {
[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] 334 |     pub fn bind(&self) -> Executor<'_> {
[INFO] [stdout]     |                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:439:73
[INFO] [stdout]     |
[INFO] [stdout] 439 |     pub fn step<'fut, F, P>(self, future: Pin<&'fut mut F>, park: P) -> Step<F, P>
[INFO] [stdout]     |                                                ----                     ^^^^^^^^^^
[INFO] [stdout]     |                                                |                        |
[INFO] [stdout]     |                                                |                        the same lifetime is hidden here
[INFO] [stdout]     |                                                |                        the same lifetime is hidden here
[INFO] [stdout]     |                                                the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'fut`
[INFO] [stdout]     |
[INFO] [stdout] 439 |     pub fn step<'fut, F, P>(self, future: Pin<&'fut mut F>, park: P) -> Step<'fut, F, P>
[INFO] [stdout]     |                                                                              +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/tests.rs:59:25
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn park_test(park: Park<'_>) -> Parked {
[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: consistently use `'_`
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn park_test(park: Park<'_>) -> Parked<'_> {
[INFO] [stdout]    |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "95b8dc7246b587501e84057da329d1f8b29570ad3e1fd50bf712d61f7d22983d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95b8dc7246b587501e84057da329d1f8b29570ad3e1fd50bf712d61f7d22983d", kill_on_drop: false }`
[INFO] [stdout] 95b8dc7246b587501e84057da329d1f8b29570ad3e1fd50bf712d61f7d22983d
