[INFO] fetching crate libmimalloc-sys 0.1.18...
[INFO] testing libmimalloc-sys-0.1.18 against 1.49.0 for beta-1.50-1
[INFO] extracting crate libmimalloc-sys 0.1.18 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate libmimalloc-sys 0.1.18 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libmimalloc-sys 0.1.18
[INFO] finished tweaking crates.io crate libmimalloc-sys 0.1.18
[INFO] tweaked toml for crates.io crate libmimalloc-sys 0.1.18 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 85349982c2b195eb11665f8cad296134be0bb86a7a811b33da7c2d32943db426
[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" "85349982c2b195eb11665f8cad296134be0bb86a7a811b33da7c2d32943db426", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "85349982c2b195eb11665f8cad296134be0bb86a7a811b33da7c2d32943db426", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85349982c2b195eb11665f8cad296134be0bb86a7a811b33da7c2d32943db426", kill_on_drop: false }`
[INFO] [stdout] 85349982c2b195eb11665f8cad296134be0bb86a7a811b33da7c2d32943db426
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 438dd824839194c046bc21f793839afcfdfa045153fa752f6afd1e4bd38055e2
[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" "438dd824839194c046bc21f793839afcfdfa045153fa752f6afd1e4bd38055e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libmimalloc-sys v0.1.18 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.00s
[INFO] running `Command { std: "docker" "inspect" "438dd824839194c046bc21f793839afcfdfa045153fa752f6afd1e4bd38055e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "438dd824839194c046bc21f793839afcfdfa045153fa752f6afd1e4bd38055e2", kill_on_drop: false }`
[INFO] [stdout] 438dd824839194c046bc21f793839afcfdfa045153fa752f6afd1e4bd38055e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 6c871b13246b0f42289dc88147c31c43b2829a4f7d64ac015087bd8d9e1f6943
[INFO] running `Command { std: "docker" "start" "-a" "6c871b13246b0f42289dc88147c31c43b2829a4f7d64ac015087bd8d9e1f6943", kill_on_drop: false }`
[INFO] [stderr]    Compiling libmimalloc-sys v0.1.18 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "6c871b13246b0f42289dc88147c31c43b2829a4f7d64ac015087bd8d9e1f6943", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c871b13246b0f42289dc88147c31c43b2829a4f7d64ac015087bd8d9e1f6943", kill_on_drop: false }`
[INFO] [stdout] 6c871b13246b0f42289dc88147c31c43b2829a4f7d64ac015087bd8d9e1f6943
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cb8090ea4ed276a19a9e53a4d9422eaed99e2d5d0e5f14ce5490b0f8cc937320
[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" "cb8090ea4ed276a19a9e53a4d9422eaed99e2d5d0e5f14ce5490b0f8cc937320", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 4 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/libmimalloc_sys-a2feec25e7af1cf4
[INFO] [stdout] test tests::it_calculates_usable_size ... ok
[INFO] [stdout] test tests::it_frees_memory_malloc ... ok
[INFO] [stdout] test tests::it_frees_memory_zalloc ... ok
[INFO] [stdout] test tests::it_frees_memory_realloc ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests libmimalloc-sys
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cb8090ea4ed276a19a9e53a4d9422eaed99e2d5d0e5f14ce5490b0f8cc937320", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb8090ea4ed276a19a9e53a4d9422eaed99e2d5d0e5f14ce5490b0f8cc937320", kill_on_drop: false }`
[INFO] [stdout] cb8090ea4ed276a19a9e53a4d9422eaed99e2d5d0e5f14ce5490b0f8cc937320