[INFO] crate malloc_buf 1.0.0 is already in cache
[INFO] testing malloc_buf-1.0.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate malloc_buf 1.0.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate malloc_buf 1.0.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate malloc_buf 1.0.0
[INFO] finished tweaking crates.io crate malloc_buf 1.0.0
[INFO] tweaked toml for crates.io crate malloc_buf 1.0.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9bda8bf78ca71153e998432e671414d8b7d4b18b8380e8d1ff856f8f7ed1b538
[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" "9bda8bf78ca71153e998432e671414d8b7d4b18b8380e8d1ff856f8f7ed1b538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9bda8bf78ca71153e998432e671414d8b7d4b18b8380e8d1ff856f8f7ed1b538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bda8bf78ca71153e998432e671414d8b7d4b18b8380e8d1ff856f8f7ed1b538", kill_on_drop: false }`
[INFO] [stdout] 9bda8bf78ca71153e998432e671414d8b7d4b18b8380e8d1ff856f8f7ed1b538
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f588e75140f77891a60d7e494aa58aa7a6ec409ed20c6f7e6e44d55146c9b50
[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" "5f588e75140f77891a60d7e494aa58aa7a6ec409ed20c6f7e6e44d55146c9b50", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling malloc_buf v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.40s
[INFO] running `Command { std: "docker" "inspect" "5f588e75140f77891a60d7e494aa58aa7a6ec409ed20c6f7e6e44d55146c9b50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f588e75140f77891a60d7e494aa58aa7a6ec409ed20c6f7e6e44d55146c9b50", kill_on_drop: false }`
[INFO] [stdout] 5f588e75140f77891a60d7e494aa58aa7a6ec409ed20c6f7e6e44d55146c9b50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8eb1c6f22beb8edada35afa7d4063581f9eea08a4a10a7d5139625f5f57e5061
[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" "8eb1c6f22beb8edada35afa7d4063581f9eea08a4a10a7d5139625f5f57e5061", kill_on_drop: false }`
[INFO] [stderr]    Compiling malloc_buf v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "8eb1c6f22beb8edada35afa7d4063581f9eea08a4a10a7d5139625f5f57e5061", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8eb1c6f22beb8edada35afa7d4063581f9eea08a4a10a7d5139625f5f57e5061", kill_on_drop: false }`
[INFO] [stdout] 8eb1c6f22beb8edada35afa7d4063581f9eea08a4a10a7d5139625f5f57e5061
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 733766d9bc28ce69b3f4453e48d82a5adfacda601f03ab15b17f6c82d3e83169
[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" "733766d9bc28ce69b3f4453e48d82a5adfacda601f03ab15b17f6c82d3e83169", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/malloc_buf-3e97e99c6a2ace2f
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::test_drop ... ok
[INFO] [stdout] test tests::test_null_buf ... ok
[INFO] [stdout] test tests::test_single ... ok
[INFO] [stdout] test tests::test_buf ... ok
[INFO] [stdout] test tests::test_string ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests malloc_buf
[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" "733766d9bc28ce69b3f4453e48d82a5adfacda601f03ab15b17f6c82d3e83169", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "733766d9bc28ce69b3f4453e48d82a5adfacda601f03ab15b17f6c82d3e83169", kill_on_drop: false }`
[INFO] [stdout] 733766d9bc28ce69b3f4453e48d82a5adfacda601f03ab15b17f6c82d3e83169