[INFO] fetching crate shared_singleton 0.1.0...
[INFO] testing shared_singleton-0.1.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate shared_singleton 0.1.0 into /workspace/builds/worker-27/source
[INFO] validating manifest of crates.io crate shared_singleton 0.1.0 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 shared_singleton 0.1.0
[INFO] finished tweaking crates.io crate shared_singleton 0.1.0
[INFO] tweaked toml for crates.io crate shared_singleton 0.1.0 written to /workspace/builds/worker-27/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-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 2d152aecc30137f0b1d26bfbc3377692194e072fbe0a2805c2257e6b3e7bc8cc
[INFO] running `Command { std: "docker" "start" "-a" "2d152aecc30137f0b1d26bfbc3377692194e072fbe0a2805c2257e6b3e7bc8cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d152aecc30137f0b1d26bfbc3377692194e072fbe0a2805c2257e6b3e7bc8cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d152aecc30137f0b1d26bfbc3377692194e072fbe0a2805c2257e6b3e7bc8cc", kill_on_drop: false }`
[INFO] [stdout] 2d152aecc30137f0b1d26bfbc3377692194e072fbe0a2805c2257e6b3e7bc8cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 970b17d6d2dcc6800f53f37c186937abebcc24edf249103cd3bf7f40bee736aa
[INFO] running `Command { std: "docker" "start" "-a" "970b17d6d2dcc6800f53f37c186937abebcc24edf249103cd3bf7f40bee736aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling shared_singleton v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "970b17d6d2dcc6800f53f37c186937abebcc24edf249103cd3bf7f40bee736aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "970b17d6d2dcc6800f53f37c186937abebcc24edf249103cd3bf7f40bee736aa", kill_on_drop: false }`
[INFO] [stdout] 970b17d6d2dcc6800f53f37c186937abebcc24edf249103cd3bf7f40bee736aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 3fb5bf91c47579a5cc66158934df746c338f467d70aa47cc5d52a63ca8183b33
[INFO] running `Command { std: "docker" "start" "-a" "3fb5bf91c47579a5cc66158934df746c338f467d70aa47cc5d52a63ca8183b33", kill_on_drop: false }`
[INFO] [stderr]    Compiling shared_singleton v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.37s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/shared_singleton-43e7a1b443dc9c47)
[INFO] running `Command { std: "docker" "inspect" "3fb5bf91c47579a5cc66158934df746c338f467d70aa47cc5d52a63ca8183b33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fb5bf91c47579a5cc66158934df746c338f467d70aa47cc5d52a63ca8183b33", kill_on_drop: false }`
[INFO] [stdout] 3fb5bf91c47579a5cc66158934df746c338f467d70aa47cc5d52a63ca8183b33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 0867d7095f76140f3ef9e134e8f329aa7754e1502777376990bd4b4ad69e93ce
[INFO] running `Command { std: "docker" "start" "-a" "0867d7095f76140f3ef9e134e8f329aa7754e1502777376990bd4b4ad69e93ce", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/shared_singleton-43e7a1b443dc9c47)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test singleton::tests::arc_mutex_test ... ok
[INFO] [stdout] test singleton::tests::arc_rwlock_test ... ok
[INFO] [stdout] test singleton::tests::arc_test ... ok
[INFO] [stdout] test singleton::tests::rc_cell_test ... ok
[INFO] [stdout] test singleton::tests::rc_refcell_test ... ok
[INFO] [stdout] test singleton::tests::rc_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests shared_singleton
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - (line 10) ... ok
[INFO] [stdout] test src/lib.rs - (line 26) ... ok
[INFO] [stdout] test src/lib.rs - (line 63) ... ok
[INFO] [stdout] test src/lib.rs - (line 45) ... ok
[INFO] [stdout] test src/lib.rs - (line 79) ... ok
[INFO] [stdout] test src/lib.rs - (line 106) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.34s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0867d7095f76140f3ef9e134e8f329aa7754e1502777376990bd4b4ad69e93ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0867d7095f76140f3ef9e134e8f329aa7754e1502777376990bd4b4ad69e93ce", kill_on_drop: false }`
[INFO] [stdout] 0867d7095f76140f3ef9e134e8f329aa7754e1502777376990bd4b4ad69e93ce