[INFO] fetching crate potential 2.2.1...
[INFO] testing potential-2.2.1 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate potential 2.2.1 into /workspace/builds/worker-28/source
[INFO] validating manifest of crates.io crate potential 2.2.1 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-28/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 56191e9efb72980e4a51913f50243c5365eba50e966f548be8ffb31cd81a688f
[INFO] running `Command { std: "docker" "start" "-a" "56191e9efb72980e4a51913f50243c5365eba50e966f548be8ffb31cd81a688f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56191e9efb72980e4a51913f50243c5365eba50e966f548be8ffb31cd81a688f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56191e9efb72980e4a51913f50243c5365eba50e966f548be8ffb31cd81a688f", kill_on_drop: false }`
[INFO] [stdout] 56191e9efb72980e4a51913f50243c5365eba50e966f548be8ffb31cd81a688f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d27c7e8e359cd0d363d9645b8fb959b0757953ae91174155418ab649ea53f2d4
[INFO] running `Command { std: "docker" "start" "-a" "d27c7e8e359cd0d363d9645b8fb959b0757953ae91174155418ab649ea53f2d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling potential v2.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.86s
[INFO] running `Command { std: "docker" "inspect" "d27c7e8e359cd0d363d9645b8fb959b0757953ae91174155418ab649ea53f2d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d27c7e8e359cd0d363d9645b8fb959b0757953ae91174155418ab649ea53f2d4", kill_on_drop: false }`
[INFO] [stdout] d27c7e8e359cd0d363d9645b8fb959b0757953ae91174155418ab649ea53f2d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc8f28d020a15acd83e59ce14338b48d8a44f8b2b80b1894fcc4bcba910a527f
[INFO] running `Command { std: "docker" "start" "-a" "fc8f28d020a15acd83e59ce14338b48d8a44f8b2b80b1894fcc4bcba910a527f", kill_on_drop: false }`
[INFO] [stderr]    Compiling potential v2.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.74s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/potential-faf5a5dd961f24b5)
[INFO] running `Command { std: "docker" "inspect" "fc8f28d020a15acd83e59ce14338b48d8a44f8b2b80b1894fcc4bcba910a527f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc8f28d020a15acd83e59ce14338b48d8a44f8b2b80b1894fcc4bcba910a527f", kill_on_drop: false }`
[INFO] [stdout] fc8f28d020a15acd83e59ce14338b48d8a44f8b2b80b1894fcc4bcba910a527f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4fe2a9a9c0a428aa309643a404d5f152b93440198f5607980b10a1ceb3f3b86c
[INFO] running `Command { std: "docker" "start" "-a" "4fe2a9a9c0a428aa309643a404d5f152b93440198f5607980b10a1ceb3f3b86c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/potential-faf5a5dd961f24b5)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::it_blocks ... ok
[INFO] [stdout] test tests::it_handles_stealing ... ok
[INFO] [stdout] test tests::it_hangs_on_no_drop ... ok
[INFO] [stdout] test tests::lease_is_send ... ok
[INFO] [stdout] test tests::lease_is_sync ... ok
[INFO] [stdout] test tests::lease_on_arc_is_send ... 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] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests potential
[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 171) ... ok
[INFO] [stdout] test src/lib.rs - Potential<T>::get_mut (line 212) ... ok
[INFO] [stdout] test src/lib.rs - (line 27) ... ok
[INFO] [stdout] test src/lib.rs - Potential<T>::lease (line 248) ... ok
[INFO] [stdout] test src/lib.rs - (line 70) ... ok
[INFO] [stdout] test src/lib.rs - Potential<T>::set (line 177) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.39s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4fe2a9a9c0a428aa309643a404d5f152b93440198f5607980b10a1ceb3f3b86c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fe2a9a9c0a428aa309643a404d5f152b93440198f5607980b10a1ceb3f3b86c", kill_on_drop: false }`
[INFO] [stdout] 4fe2a9a9c0a428aa309643a404d5f152b93440198f5607980b10a1ceb3f3b86c