[INFO] fetching crate potential 2.2.1...
[INFO] testing potential-2.2.1 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] extracting crate potential 2.2.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate potential 2.2.1 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate potential 2.2.1
[INFO] finished tweaking crates.io crate potential 2.2.1
[INFO] tweaked toml for crates.io crate potential 2.2.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 84747bc578625ed3b266b99bba3d7a0ec26173f1c4b2110af8885bc76d7f223f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "84747bc578625ed3b266b99bba3d7a0ec26173f1c4b2110af8885bc76d7f223f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84747bc578625ed3b266b99bba3d7a0ec26173f1c4b2110af8885bc76d7f223f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84747bc578625ed3b266b99bba3d7a0ec26173f1c4b2110af8885bc76d7f223f", kill_on_drop: false }`
[INFO] [stdout] 84747bc578625ed3b266b99bba3d7a0ec26173f1c4b2110af8885bc76d7f223f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 115610a37656cdec5428ad32181f683f28f4a8df532dd18b385bbd6532b6beb1
[INFO] running `Command { std: "docker" "start" "-a" "115610a37656cdec5428ad32181f683f28f4a8df532dd18b385bbd6532b6beb1", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling slab v0.4.3
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling potential v2.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.69s
[INFO] running `Command { std: "docker" "inspect" "115610a37656cdec5428ad32181f683f28f4a8df532dd18b385bbd6532b6beb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "115610a37656cdec5428ad32181f683f28f4a8df532dd18b385bbd6532b6beb1", kill_on_drop: false }`
[INFO] [stdout] 115610a37656cdec5428ad32181f683f28f4a8df532dd18b385bbd6532b6beb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] af322593f22f3cbe076c651a9112d14a33b78c71f47d738d6c150f847465a683
[INFO] running `Command { std: "docker" "start" "-a" "af322593f22f3cbe076c651a9112d14a33b78c71f47d738d6c150f847465a683", kill_on_drop: false }`
[INFO] [stderr]    Compiling potential v2.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `Command { std: "docker" "inspect" "af322593f22f3cbe076c651a9112d14a33b78c71f47d738d6c150f847465a683", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af322593f22f3cbe076c651a9112d14a33b78c71f47d738d6c150f847465a683", kill_on_drop: false }`
[INFO] [stdout] af322593f22f3cbe076c651a9112d14a33b78c71f47d738d6c150f847465a683
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 662c22e68cbcdb451068739e8d6b5094563cfb25e02d7f67922191d2a2a8b6de
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "662c22e68cbcdb451068739e8d6b5094563cfb25e02d7f67922191d2a2a8b6de", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/potential-7adffe56baa8144b)
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::it_handles_stealing ... ok
[INFO] [stdout] test tests::it_hangs_on_no_drop ... ok
[INFO] [stdout] test tests::lease_on_arc_is_static ... ok
[INFO] [stdout] test tests::lease_on_arc_is_sync ... ok
[INFO] [stdout] test tests::lease_on_rc_is_static ... ok
[INFO] [stdout] test tests::lease_on_arc_is_send ... ok
[INFO] [stderr]    Doc-tests potential
[INFO] [stdout] test tests::it_blocks ... ok
[INFO] [stdout] test tests::lease_is_send ... ok
[INFO] [stdout] test tests::lease_is_sync ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - Potential<T>::lease (line 238) ... ok
[INFO] [stdout] test src/lib.rs - Potential<T>::set (line 177) ... ok
[INFO] [stdout] test src/lib.rs - Potential<T>::get_mut (line 212) ... ok
[INFO] [stdout] test src/lib.rs - Potential<T>::lease (line 248) ... ok
[INFO] [stdout] test src/lib.rs - Potential<T>::set (line 171) ... ok
[INFO] [stdout] test src/lib.rs - (line 27) ... ok
[INFO] [stdout] test src/lib.rs - (line 70) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.99s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "662c22e68cbcdb451068739e8d6b5094563cfb25e02d7f67922191d2a2a8b6de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "662c22e68cbcdb451068739e8d6b5094563cfb25e02d7f67922191d2a2a8b6de", kill_on_drop: false }`
[INFO] [stdout] 662c22e68cbcdb451068739e8d6b5094563cfb25e02d7f67922191d2a2a8b6de