[INFO] fetching crate libmimalloc-sys 0.1.18...
[INFO] testing libmimalloc-sys-0.1.18 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate libmimalloc-sys 0.1.18 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate libmimalloc-sys 0.1.18 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", 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] c1888f8a912f45e567714051859e203a04febcb5c2bab520d1a688babb7a0e87
[INFO] running `Command { std: "docker" "start" "-a" "c1888f8a912f45e567714051859e203a04febcb5c2bab520d1a688babb7a0e87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1888f8a912f45e567714051859e203a04febcb5c2bab520d1a688babb7a0e87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1888f8a912f45e567714051859e203a04febcb5c2bab520d1a688babb7a0e87", kill_on_drop: false }`
[INFO] [stdout] c1888f8a912f45e567714051859e203a04febcb5c2bab520d1a688babb7a0e87
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6626985f462fcc636b2a689d46e993aa0217d79bf82b117a387a836a94ef33d
[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" "c6626985f462fcc636b2a689d46e993aa0217d79bf82b117a387a836a94ef33d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libmimalloc-sys v0.1.18 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.23s
[INFO] running `Command { std: "docker" "inspect" "c6626985f462fcc636b2a689d46e993aa0217d79bf82b117a387a836a94ef33d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6626985f462fcc636b2a689d46e993aa0217d79bf82b117a387a836a94ef33d", kill_on_drop: false }`
[INFO] [stdout] c6626985f462fcc636b2a689d46e993aa0217d79bf82b117a387a836a94ef33d
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2b1827295bc25c378f549f27edf203224a1f50caf98ed1d765b7196c9d8aae4
[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" "b2b1827295bc25c378f549f27edf203224a1f50caf98ed1d765b7196c9d8aae4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libmimalloc-sys v0.1.18 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "b2b1827295bc25c378f549f27edf203224a1f50caf98ed1d765b7196c9d8aae4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2b1827295bc25c378f549f27edf203224a1f50caf98ed1d765b7196c9d8aae4", kill_on_drop: false }`
[INFO] [stdout] b2b1827295bc25c378f549f27edf203224a1f50caf98ed1d765b7196c9d8aae4
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fae5847d74f00de690ee83deb93fb43d19da76730d6cb79bca7db90d4e0eab88
[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" "fae5847d74f00de690ee83deb93fb43d19da76730d6cb79bca7db90d4e0eab88", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/libmimalloc_sys-98687af025ddf7bf
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::it_frees_memory_malloc ... ok
[INFO] [stdout] test tests::it_frees_memory_realloc ... ok
[INFO] [stdout] test tests::it_calculates_usable_size ... ok
[INFO] [stdout] test tests::it_frees_memory_zalloc ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fae5847d74f00de690ee83deb93fb43d19da76730d6cb79bca7db90d4e0eab88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fae5847d74f00de690ee83deb93fb43d19da76730d6cb79bca7db90d4e0eab88", kill_on_drop: false }`
[INFO] [stdout] fae5847d74f00de690ee83deb93fb43d19da76730d6cb79bca7db90d4e0eab88