[INFO] cloning repository https://github.com/pchampin/pair_trait
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pchampin/pair_trait" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpchampin%2Fpair_trait", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpchampin%2Fpair_trait'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7f47d86bec5bc5da166f88c7cc8c5b26dc6922cf
[INFO] testing pchampin/pair_trait against 1.79.0 for beta-1.80-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpchampin%2Fpair_trait" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pchampin/pair_trait on toolchain 1.79.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.79.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pchampin/pair_trait
[INFO] finished tweaking git repo https://github.com/pchampin/pair_trait
[INFO] tweaked toml for git repo https://github.com/pchampin/pair_trait written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/pchampin/pair_trait 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" "+1.79.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v0.13.11
[INFO] [stderr]   Downloaded rental-impl v0.5.0
[INFO] [stderr]   Downloaded rental v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+1.79.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 28a54e38cf3809647a3fb393c1dfad25c3311013ce3246f2b99a917907f81e34
[INFO] running `Command { std: "docker" "start" "-a" "28a54e38cf3809647a3fb393c1dfad25c3311013ce3246f2b99a917907f81e34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28a54e38cf3809647a3fb393c1dfad25c3311013ce3246f2b99a917907f81e34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28a54e38cf3809647a3fb393c1dfad25c3311013ce3246f2b99a917907f81e34", kill_on_drop: false }`
[INFO] [stdout] 28a54e38cf3809647a3fb393c1dfad25c3311013ce3246f2b99a917907f81e34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+1.79.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f25624f779bdf9a62be0128f9da57de7e3d9497cb8e6f806d9b6c119e0bf075
[INFO] running `Command { std: "docker" "start" "-a" "8f25624f779bdf9a62be0128f9da57de7e3d9497cb8e6f806d9b6c119e0bf075", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]    Compiling rental-impl v0.5.0
[INFO] [stderr]    Compiling rental v0.5.1
[INFO] [stderr]    Compiling trait_pair v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using an old version of `rental`
[INFO] [stdout]   --> src/main.rs:50:1
[INFO] [stdout]    |
[INFO] [stdout] 50 | / rental! {
[INFO] [stdout] 51 | |     pub mod self_sustained_pair {
[INFO] [stdout] 52 | |         use std::borrow::Cow;
[INFO] [stdout] 53 | |         #[rental(covariant)]
[INFO] [stdout] ...  |
[INFO] [stdout] 58 | |     }
[INFO] [stdout] 59 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #83125 <https://github.com/rust-lang/rust/issues/83125>
[INFO] [stdout]    = note: older versions of the `rental` crate will stop compiling in future versions of Rust; please update to `rental` v0.5.6, or switch to one of the `rental` alternatives
[INFO] [stdout]    = note: `#[warn(proc_macro_back_compat)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `rental` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.64s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rental v0.5.1, syn v0.13.11, trait_pair v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "8f25624f779bdf9a62be0128f9da57de7e3d9497cb8e6f806d9b6c119e0bf075", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f25624f779bdf9a62be0128f9da57de7e3d9497cb8e6f806d9b6c119e0bf075", kill_on_drop: false }`
[INFO] [stdout] 8f25624f779bdf9a62be0128f9da57de7e3d9497cb8e6f806d9b6c119e0bf075
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+1.79.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd918fca4e4bb846f5aae8ca6ddd4f1593163d11b154ebd2001e893c8d107d68
[INFO] running `Command { std: "docker" "start" "-a" "cd918fca4e4bb846f5aae8ca6ddd4f1593163d11b154ebd2001e893c8d107d68", kill_on_drop: false }`
[INFO] [stderr]    Compiling trait_pair v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using an old version of `rental`
[INFO] [stdout]   --> src/main.rs:50:1
[INFO] [stdout]    |
[INFO] [stdout] 50 | / rental! {
[INFO] [stdout] 51 | |     pub mod self_sustained_pair {
[INFO] [stdout] 52 | |         use std::borrow::Cow;
[INFO] [stdout] 53 | |         #[rental(covariant)]
[INFO] [stdout] ...  |
[INFO] [stdout] 58 | |     }
[INFO] [stdout] 59 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #83125 <https://github.com/rust-lang/rust/issues/83125>
[INFO] [stdout]    = note: older versions of the `rental` crate will stop compiling in future versions of Rust; please update to `rental` v0.5.6, or switch to one of the `rental` alternatives
[INFO] [stdout]    = note: `#[warn(proc_macro_back_compat)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `rental` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.51s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rental v0.5.1, syn v0.13.11, trait_pair v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "cd918fca4e4bb846f5aae8ca6ddd4f1593163d11b154ebd2001e893c8d107d68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd918fca4e4bb846f5aae8ca6ddd4f1593163d11b154ebd2001e893c8d107d68", kill_on_drop: false }`
[INFO] [stdout] cd918fca4e4bb846f5aae8ca6ddd4f1593163d11b154ebd2001e893c8d107d68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+1.79.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 425ed9d58498c5fa5657ef7a39f691eb3eefaff56c5524d6d0a3e0590bee6b1e
[INFO] running `Command { std: "docker" "start" "-a" "425ed9d58498c5fa5657ef7a39f691eb3eefaff56c5524d6d0a3e0590bee6b1e", kill_on_drop: false }`
[INFO] [stderr] warning: using an old version of `rental`
[INFO] [stderr]   --> src/main.rs:50:1
[INFO] [stderr]    |
[INFO] [stderr] 50 | / rental! {
[INFO] [stderr] 51 | |     pub mod self_sustained_pair {
[INFO] [stderr] 52 | |         use std::borrow::Cow;
[INFO] [stderr] 53 | |         #[rental(covariant)]
[INFO] [stderr] ...  |
[INFO] [stderr] 58 | |     }
[INFO] [stderr] 59 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #83125 <https://github.com/rust-lang/rust/issues/83125>
[INFO] [stderr]    = note: older versions of the `rental` crate will stop compiling in future versions of Rust; please update to `rental` v0.5.6, or switch to one of the `rental` alternatives
[INFO] [stderr]    = note: `#[warn(proc_macro_back_compat)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `rental` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `trait_pair` (bin "trait_pair" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rental v0.5.1, syn v0.13.11, trait_pair v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/trait_pair-9d71131835d1885e)
[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" "425ed9d58498c5fa5657ef7a39f691eb3eefaff56c5524d6d0a3e0590bee6b1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "425ed9d58498c5fa5657ef7a39f691eb3eefaff56c5524d6d0a3e0590bee6b1e", kill_on_drop: false }`
[INFO] [stdout] 425ed9d58498c5fa5657ef7a39f691eb3eefaff56c5524d6d0a3e0590bee6b1e