[INFO] fetching crate whatgrad 0.1.0...
[INFO] testing whatgrad-0.1.0 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739-1
[INFO] extracting crate whatgrad 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate whatgrad 0.1.0
[INFO] finished tweaking crates.io crate whatgrad 0.1.0
[INFO] tweaked toml for crates.io crate whatgrad 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate whatgrad 0.1.0 on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate whatgrad 0.1.0 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" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37efcc75c7f14ed0409f304b9f4fe9143697fc4c8b21d45f88ced2d56d25205d
[INFO] running `Command { std: "docker" "start" "-a" "37efcc75c7f14ed0409f304b9f4fe9143697fc4c8b21d45f88ced2d56d25205d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37efcc75c7f14ed0409f304b9f4fe9143697fc4c8b21d45f88ced2d56d25205d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37efcc75c7f14ed0409f304b9f4fe9143697fc4c8b21d45f88ced2d56d25205d", kill_on_drop: false }`
[INFO] [stdout] 37efcc75c7f14ed0409f304b9f4fe9143697fc4c8b21d45f88ced2d56d25205d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10e2a96d1b0b4d74b5cd6c6326e5b1a0b6179d7d266bf7a5ce272af79cde2e33
[INFO] running `Command { std: "docker" "start" "-a" "10e2a96d1b0b4d74b5cd6c6326e5b1a0b6179d7d266bf7a5ce272af79cde2e33", kill_on_drop: false }`
[INFO] [stderr]    Compiling whatgrad v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/scope.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn value(&self, value: T) -> Value<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] 23 |     pub fn value(&self, value: T) -> Value<'_, T> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/scope.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         &self,
[INFO] [stdout]    |         ^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 42 |     ) -> Value<T> {
[INFO] [stdout]    |          ^^^^^^^^ the same lifetime is hidden 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] 42 |     ) -> Value<'_, T> {
[INFO] [stdout]    |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/scope.rs:54:24
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn constant_op(&self, partial: T, idx: usize, new_value: T) -> Value<T> {
[INFO] [stdout]    |                        ^^^^^ the lifetime is elided here               ^^^^^^^^ the same lifetime is hidden 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] 54 |     pub fn constant_op(&self, partial: T, idx: usize, new_value: T) -> Value<'_, T> {
[INFO] [stdout]    |                                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "10e2a96d1b0b4d74b5cd6c6326e5b1a0b6179d7d266bf7a5ce272af79cde2e33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10e2a96d1b0b4d74b5cd6c6326e5b1a0b6179d7d266bf7a5ce272af79cde2e33", kill_on_drop: false }`
[INFO] [stdout] 10e2a96d1b0b4d74b5cd6c6326e5b1a0b6179d7d266bf7a5ce272af79cde2e33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be6d28af64f69dbf2b5044643a044a2b06ceacfaf48eeccbcd31af6228d7a2a1
[INFO] running `Command { std: "docker" "start" "-a" "be6d28af64f69dbf2b5044643a044a2b06ceacfaf48eeccbcd31af6228d7a2a1", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/scope.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn value(&self, value: T) -> Value<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] 23 |     pub fn value(&self, value: T) -> Value<'_, T> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/scope.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         &self,
[INFO] [stdout]    |         ^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 42 |     ) -> Value<T> {
[INFO] [stdout]    |          ^^^^^^^^ the same lifetime is hidden 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] 42 |     ) -> Value<'_, T> {
[INFO] [stdout]    |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/scope.rs:54:24
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn constant_op(&self, partial: T, idx: usize, new_value: T) -> Value<T> {
[INFO] [stdout]    |                        ^^^^^ the lifetime is elided here               ^^^^^^^^ the same lifetime is hidden 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] 54 |     pub fn constant_op(&self, partial: T, idx: usize, new_value: T) -> Value<'_, T> {
[INFO] [stdout]    |                                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling whatgrad v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/scope.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn value(&self, value: T) -> Value<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] 23 |     pub fn value(&self, value: T) -> Value<'_, T> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/scope.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         &self,
[INFO] [stdout]    |         ^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 42 |     ) -> Value<T> {
[INFO] [stdout]    |          ^^^^^^^^ the same lifetime is hidden 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] 42 |     ) -> Value<'_, T> {
[INFO] [stdout]    |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/scope.rs:54:24
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn constant_op(&self, partial: T, idx: usize, new_value: T) -> Value<T> {
[INFO] [stdout]    |                        ^^^^^ the lifetime is elided here               ^^^^^^^^ the same lifetime is hidden 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] 54 |     pub fn constant_op(&self, partial: T, idx: usize, new_value: T) -> Value<'_, T> {
[INFO] [stdout]    |                                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "be6d28af64f69dbf2b5044643a044a2b06ceacfaf48eeccbcd31af6228d7a2a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be6d28af64f69dbf2b5044643a044a2b06ceacfaf48eeccbcd31af6228d7a2a1", kill_on_drop: false }`
[INFO] [stdout] be6d28af64f69dbf2b5044643a044a2b06ceacfaf48eeccbcd31af6228d7a2a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bc6271e2aaca389f633b5591996c938f326a0866615412255b60d71b5fc2a7ee
[INFO] running `Command { std: "docker" "start" "-a" "bc6271e2aaca389f633b5591996c938f326a0866615412255b60d71b5fc2a7ee", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout] 
[INFO] [stderr]   --> src/scope.rs:23:18
[INFO] [stdout] running 0 tests
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 23 |     pub fn value(&self, value: T) -> Value<T> {
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |                  ^^^^^               ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] 
[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] 23 |     pub fn value(&self, value: T) -> Value<'_, T> {
[INFO] [stderr]    |                                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/scope.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         &self,
[INFO] [stderr]    |         ^^^^^ the lifetime is elided here
[INFO] [stderr] ...
[INFO] [stderr] 42 |     ) -> Value<T> {
[INFO] [stderr]    |          ^^^^^^^^ the same lifetime is hidden 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] 42 |     ) -> Value<'_, T> {
[INFO] [stderr]    |                +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/scope.rs:54:24
[INFO] [stderr]    |
[INFO] [stderr] 54 |     pub fn constant_op(&self, partial: T, idx: usize, new_value: T) -> Value<T> {
[INFO] [stderr]    |                        ^^^^^ the lifetime is elided here               ^^^^^^^^ the same lifetime is hidden 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] 54 |     pub fn constant_op(&self, partial: T, idx: usize, new_value: T) -> Value<'_, T> {
[INFO] [stderr]    |                                                                              +++
[INFO] [stderr] 
[INFO] [stderr] warning: `whatgrad` (lib) generated 3 warnings (run `cargo fix --lib -p whatgrad` to apply 3 suggestions)
[INFO] [stderr] warning: `whatgrad` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/whatgrad-dfc3b45d9404e6c8)
[INFO] [stderr]    Doc-tests whatgrad
[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] running `Command { std: "docker" "inspect" "bc6271e2aaca389f633b5591996c938f326a0866615412255b60d71b5fc2a7ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc6271e2aaca389f633b5591996c938f326a0866615412255b60d71b5fc2a7ee", kill_on_drop: false }`
[INFO] [stdout] bc6271e2aaca389f633b5591996c938f326a0866615412255b60d71b5fc2a7ee
