[INFO] fetching crate reverse 0.2.2...
[INFO] testing reverse-0.2.2 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate reverse 0.2.2 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate reverse 0.2.2
[INFO] finished tweaking crates.io crate reverse 0.2.2
[INFO] tweaked toml for crates.io crate reverse 0.2.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate reverse 0.2.2 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 reverse 0.2.2 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 52a45caa40e239796c8a6d584b9635903ddedb6a69af69c53edffc223bc9799e
[INFO] running `Command { std: "docker" "start" "-a" "52a45caa40e239796c8a6d584b9635903ddedb6a69af69c53edffc223bc9799e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52a45caa40e239796c8a6d584b9635903ddedb6a69af69c53edffc223bc9799e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52a45caa40e239796c8a6d584b9635903ddedb6a69af69c53edffc223bc9799e", kill_on_drop: false }`
[INFO] [stdout] 52a45caa40e239796c8a6d584b9635903ddedb6a69af69c53edffc223bc9799e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] bb9eb7bdb86224601b70e494c8944549e3015c5e6f39957cfb9bee5eda2c0827
[INFO] running `Command { std: "docker" "start" "-a" "bb9eb7bdb86224601b70e494c8944549e3015c5e6f39957cfb9bee5eda2c0827", kill_on_drop: false }`
[INFO] [stderr]    Compiling reverse v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:98:20
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub fn add_var(&self, val: f64) -> Var {
[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] 98 |     pub fn add_var(&self, val: f64) -> Var<'_> {
[INFO] [stdout]    |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "bb9eb7bdb86224601b70e494c8944549e3015c5e6f39957cfb9bee5eda2c0827", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb9eb7bdb86224601b70e494c8944549e3015c5e6f39957cfb9bee5eda2c0827", kill_on_drop: false }`
[INFO] [stdout] bb9eb7bdb86224601b70e494c8944549e3015c5e6f39957cfb9bee5eda2c0827
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 569b16a99989480bfabc74062af66cdd44eeb53a68f82090c8da4e29f198e044
[INFO] running `Command { std: "docker" "start" "-a" "569b16a99989480bfabc74062af66cdd44eeb53a68f82090c8da4e29f198e044", kill_on_drop: false }`
[INFO] [stderr]    Compiling approx_eq v0.1.8
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:98:20
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub fn add_var(&self, val: f64) -> Var {
[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] 98 |     pub fn add_var(&self, val: f64) -> Var<'_> {
[INFO] [stdout]    |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling reverse v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:98:20
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub fn add_var(&self, val: f64) -> Var {
[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] 98 |     pub fn add_var(&self, val: f64) -> Var<'_> {
[INFO] [stdout]    |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "569b16a99989480bfabc74062af66cdd44eeb53a68f82090c8da4e29f198e044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "569b16a99989480bfabc74062af66cdd44eeb53a68f82090c8da4e29f198e044", kill_on_drop: false }`
[INFO] [stdout] 569b16a99989480bfabc74062af66cdd44eeb53a68f82090c8da4e29f198e044
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 327c2d0b8a46e6fe4ccea8881c0e793521a9c8f6fc73cad380cdaa1fac833742
[INFO] running `Command { std: "docker" "start" "-a" "327c2d0b8a46e6fe4ccea8881c0e793521a9c8f6fc73cad380cdaa1fac833742", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/lib.rs:98:20
[INFO] [stderr]    |
[INFO] [stderr] 98 |     pub fn add_var(&self, val: f64) -> Var {
[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] 98 |     pub fn add_var(&self, val: f64) -> Var<'_> {
[INFO] [stderr]    |                                           ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `reverse` (lib) generated 1 warning (run `cargo fix --lib -p reverse` to apply 1 suggestion)
[INFO] [stderr] warning: `reverse` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/reverse-41b903f6c5a18043)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test test::test_ad0 ... ok
[INFO] [stdout] test test::test_ad2 ... ok
[INFO] [stdout] test test::test_ad3 ... ok
[INFO] [stdout] test test::test_ad4 ... ok
[INFO] [stdout] test test::test_ad1 ... ok
[INFO] [stdout] test test::test_rosenbrock ... ok
[INFO] [stdout] test test::test_ad5 ... ok
[INFO] [stdout] test test::test_ad7 ... ok
[INFO] [stdout] test test::test_ad6 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests reverse
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 22) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "327c2d0b8a46e6fe4ccea8881c0e793521a9c8f6fc73cad380cdaa1fac833742", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "327c2d0b8a46e6fe4ccea8881c0e793521a9c8f6fc73cad380cdaa1fac833742", kill_on_drop: false }`
[INFO] [stdout] 327c2d0b8a46e6fe4ccea8881c0e793521a9c8f6fc73cad380cdaa1fac833742