[INFO] fetching crate zero 0.1.2...
[INFO] testing zero-0.1.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate zero 0.1.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate zero 0.1.2 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 zero 0.1.2
[INFO] finished tweaking crates.io crate zero 0.1.2
[INFO] tweaked toml for crates.io crate zero 0.1.2 written to /workspace/builds/worker-7/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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 927e62f823f21a5f30818baaeeda3a0eaab9303b2f0b07f4975b29324e094908
[INFO] running `Command { std: "docker" "start" "-a" "927e62f823f21a5f30818baaeeda3a0eaab9303b2f0b07f4975b29324e094908", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "927e62f823f21a5f30818baaeeda3a0eaab9303b2f0b07f4975b29324e094908", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "927e62f823f21a5f30818baaeeda3a0eaab9303b2f0b07f4975b29324e094908", kill_on_drop: false }`
[INFO] [stdout] 927e62f823f21a5f30818baaeeda3a0eaab9303b2f0b07f4975b29324e094908
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stdout] 8d8c532f175a927c7c28f9194946772eab57b212de4ca93e41a655fb19eed875
[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" "8d8c532f175a927c7c28f9194946772eab57b212de4ca93e41a655fb19eed875", kill_on_drop: false }`
[INFO] [stderr]    Compiling zero v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "8d8c532f175a927c7c28f9194946772eab57b212de4ca93e41a655fb19eed875", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d8c532f175a927c7c28f9194946772eab57b212de4ca93e41a655fb19eed875", kill_on_drop: false }`
[INFO] [stdout] 8d8c532f175a927c7c28f9194946772eab57b212de4ca93e41a655fb19eed875
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] a4e3e6812868536b75760bfb275f98bb57ca8bd3792333431876e3dfbcbed2e4
[INFO] running `Command { std: "docker" "start" "-a" "a4e3e6812868536b75760bfb275f98bb57ca8bd3792333431876e3dfbcbed2e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling zero v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "a4e3e6812868536b75760bfb275f98bb57ca8bd3792333431876e3dfbcbed2e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4e3e6812868536b75760bfb275f98bb57ca8bd3792333431876e3dfbcbed2e4", kill_on_drop: false }`
[INFO] [stdout] a4e3e6812868536b75760bfb275f98bb57ca8bd3792333431876e3dfbcbed2e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stdout] 66c0e54265fd95bf18a5ead56bd301ec7a7e8a530233676db148afcdf28739df
[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" "66c0e54265fd95bf18a5ead56bd301ec7a7e8a530233676db148afcdf28739df", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/zero-d09b5008ae2bcb1f)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test test::test_good_strs ... ok
[INFO] [stdout] test test::test_good_strs_to_null ... ok
[INFO] [stdout] test test::test_read ... ok
[INFO] [stdout] test test::test_read_array ... ok
[INFO] [stdout] test test::test_array_zero_sized - should panic ... ok
[INFO] [stdout] test test::test_no_null - should panic ... ok
[INFO] [stdout] test test::test_no_null2 - should panic ... ok
[INFO] [stdout] test test::test_no_null_to_null - should panic ... ok
[INFO] [stdout] test test::test_not_unicode - should panic ... ok
[INFO] [stdout] test test::test_too_small - should panic ... ok
[INFO] [stdout] test test::test_too_small2 - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests zero
[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" "66c0e54265fd95bf18a5ead56bd301ec7a7e8a530233676db148afcdf28739df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66c0e54265fd95bf18a5ead56bd301ec7a7e8a530233676db148afcdf28739df", kill_on_drop: false }`
[INFO] [stdout] 66c0e54265fd95bf18a5ead56bd301ec7a7e8a530233676db148afcdf28739df