[INFO] fetching crate singlyton 4.1.1...
[INFO] testing singlyton-4.1.1 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate singlyton 4.1.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate singlyton 4.1.1 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate singlyton 4.1.1
[INFO] finished tweaking crates.io crate singlyton 4.1.1
[INFO] tweaked toml for crates.io crate singlyton 4.1.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ff76f9783e6e2aef3b78c48a446c16d7cfcad09cf17f5bebe5c5e6cffda7dd8
[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" "2ff76f9783e6e2aef3b78c48a446c16d7cfcad09cf17f5bebe5c5e6cffda7dd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ff76f9783e6e2aef3b78c48a446c16d7cfcad09cf17f5bebe5c5e6cffda7dd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ff76f9783e6e2aef3b78c48a446c16d7cfcad09cf17f5bebe5c5e6cffda7dd8", kill_on_drop: false }`
[INFO] [stdout] 2ff76f9783e6e2aef3b78c48a446c16d7cfcad09cf17f5bebe5c5e6cffda7dd8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "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] b0b2db3e544d8d7e52787e670f768b3057f9a4cd5cde4596507da4d5602a0730
[INFO] running `Command { std: "docker" "start" "-a" "b0b2db3e544d8d7e52787e670f768b3057f9a4cd5cde4596507da4d5602a0730", kill_on_drop: false }`
[INFO] [stderr]    Compiling atomic_refcell v0.1.8
[INFO] [stderr]    Compiling singlyton v4.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `Command { std: "docker" "inspect" "b0b2db3e544d8d7e52787e670f768b3057f9a4cd5cde4596507da4d5602a0730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0b2db3e544d8d7e52787e670f768b3057f9a4cd5cde4596507da4d5602a0730", kill_on_drop: false }`
[INFO] [stdout] b0b2db3e544d8d7e52787e670f768b3057f9a4cd5cde4596507da4d5602a0730
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 35a52f75b0d59f1b41b30584afd9e6c4756cfa8f312e79b622a68ac0a4a672ee
[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" "35a52f75b0d59f1b41b30584afd9e6c4756cfa8f312e79b622a68ac0a4a672ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling singlyton v4.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "35a52f75b0d59f1b41b30584afd9e6c4756cfa8f312e79b622a68ac0a4a672ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35a52f75b0d59f1b41b30584afd9e6c4756cfa8f312e79b622a68ac0a4a672ee", kill_on_drop: false }`
[INFO] [stdout] 35a52f75b0d59f1b41b30584afd9e6c4756cfa8f312e79b622a68ac0a4a672ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 41b9a03277da43a79188a52050004a5811abe11c0c0cea2e4e1bc413fa5a4e6a
[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" "41b9a03277da43a79188a52050004a5811abe11c0c0cea2e4e1bc413fa5a4e6a", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] running 7 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/singlyton-0f31f65d61af4464)
[INFO] [stdout] test tests::test_singleton_uninit ... ok
[INFO] [stdout] test tests::test_singleton ... ok
[INFO] [stderr]    Doc-tests singlyton
[INFO] [stdout] test tests::test_refcell - should panic ... ok
[INFO] [stdout] test tests::test_singleton_uninit_panic - should panic ... ok
[INFO] [stdout] test tests::test_thread_safety_3 - should panic ... ok
[INFO] [stdout] test tests::test_thread_safety_2 - should panic ... ok
[INFO] [stdout] test tests::test_thread_safety - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 46) ... ok
[INFO] [stdout] test src/lib.rs - (line 31) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.62s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "41b9a03277da43a79188a52050004a5811abe11c0c0cea2e4e1bc413fa5a4e6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41b9a03277da43a79188a52050004a5811abe11c0c0cea2e4e1bc413fa5a4e6a", kill_on_drop: false }`
[INFO] [stdout] 41b9a03277da43a79188a52050004a5811abe11c0c0cea2e4e1bc413fa5a4e6a