[INFO] fetching crate yz-basic-block 0.1.0...
[INFO] testing yz-basic-block-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate yz-basic-block 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate yz-basic-block 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yz-basic-block 0.1.0
[INFO] finished tweaking crates.io crate yz-basic-block 0.1.0
[INFO] tweaked toml for crates.io crate yz-basic-block 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f8b4b34d85c22309181a5f2be0f31e785c6078c1e3311c411f1229f69d4ebed
[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" "0f8b4b34d85c22309181a5f2be0f31e785c6078c1e3311c411f1229f69d4ebed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f8b4b34d85c22309181a5f2be0f31e785c6078c1e3311c411f1229f69d4ebed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f8b4b34d85c22309181a5f2be0f31e785c6078c1e3311c411f1229f69d4ebed", kill_on_drop: false }`
[INFO] [stdout] 0f8b4b34d85c22309181a5f2be0f31e785c6078c1e3311c411f1229f69d4ebed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] 48408f90d5874b974514ffd2ae4255b8af212b803de58c2484e4f766222d9121
[INFO] running `Command { std: "docker" "start" "-a" "48408f90d5874b974514ffd2ae4255b8af212b803de58c2484e4f766222d9121", kill_on_drop: false }`
[INFO] [stderr]    Compiling yz-basic-block v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "48408f90d5874b974514ffd2ae4255b8af212b803de58c2484e4f766222d9121", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48408f90d5874b974514ffd2ae4255b8af212b803de58c2484e4f766222d9121", kill_on_drop: false }`
[INFO] [stdout] 48408f90d5874b974514ffd2ae4255b8af212b803de58c2484e4f766222d9121
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] c14be283270cc8e6bbe55a3f36ff90847645b0594e3cae67f1ad2770eceace3d
[INFO] running `Command { std: "docker" "start" "-a" "c14be283270cc8e6bbe55a3f36ff90847645b0594e3cae67f1ad2770eceace3d", kill_on_drop: false }`
[INFO] [stderr]    Compiling yz-basic-block v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.65s
[INFO] running `Command { std: "docker" "inspect" "c14be283270cc8e6bbe55a3f36ff90847645b0594e3cae67f1ad2770eceace3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c14be283270cc8e6bbe55a3f36ff90847645b0594e3cae67f1ad2770eceace3d", kill_on_drop: false }`
[INFO] [stdout] c14be283270cc8e6bbe55a3f36ff90847645b0594e3cae67f1ad2770eceace3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", 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] 6b5987b6d2543de2faaa30a059d7f28c79095de7c1e949947f9fa41c08281a93
[INFO] running `Command { std: "docker" "start" "-a" "6b5987b6d2543de2faaa30a059d7f28c79095de7c1e949947f9fa41c08281a93", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/yz_basic_block-9e34c6128b2e47a3)
[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] [stderr]      Running tests/simple.rs (/opt/rustwide/target/debug/deps/simple-e9404bd064e60485)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test bb0 ... ok
[INFO] [stdout] test bb1 ... ok
[INFO] [stdout] test bb_keep ... ok
[INFO] [stdout] test bb_merge ... ok
[INFO] [stdout] test bb_pop ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests yz-basic-block
[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" "6b5987b6d2543de2faaa30a059d7f28c79095de7c1e949947f9fa41c08281a93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b5987b6d2543de2faaa30a059d7f28c79095de7c1e949947f9fa41c08281a93", kill_on_drop: false }`
[INFO] [stdout] 6b5987b6d2543de2faaa30a059d7f28c79095de7c1e949947f9fa41c08281a93