[INFO] fetching crate zero 0.1.2...
[INFO] testing zero-0.1.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate zero 0.1.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate zero 0.1.2 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 55f7ef5aa7660bc70441d63d46681b435b265389473993ac7775a59594ea80db
[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" "55f7ef5aa7660bc70441d63d46681b435b265389473993ac7775a59594ea80db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55f7ef5aa7660bc70441d63d46681b435b265389473993ac7775a59594ea80db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55f7ef5aa7660bc70441d63d46681b435b265389473993ac7775a59594ea80db", kill_on_drop: false }`
[INFO] [stdout] 55f7ef5aa7660bc70441d63d46681b435b265389473993ac7775a59594ea80db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a7ab5e235d20a33396a127b428510bed36994567709064c9baaa1e40f0001ec
[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" "1a7ab5e235d20a33396a127b428510bed36994567709064c9baaa1e40f0001ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling zero v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "1a7ab5e235d20a33396a127b428510bed36994567709064c9baaa1e40f0001ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a7ab5e235d20a33396a127b428510bed36994567709064c9baaa1e40f0001ec", kill_on_drop: false }`
[INFO] [stdout] 1a7ab5e235d20a33396a127b428510bed36994567709064c9baaa1e40f0001ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2021-09-08" "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] 92e000791d638c78d564f0a921d19cdce7e8d20d58c9c6439dc9415fbc317802
[INFO] running `Command { std: "docker" "start" "-a" "92e000791d638c78d564f0a921d19cdce7e8d20d58c9c6439dc9415fbc317802", kill_on_drop: false }`
[INFO] [stderr]    Compiling zero v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "92e000791d638c78d564f0a921d19cdce7e8d20d58c9c6439dc9415fbc317802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92e000791d638c78d564f0a921d19cdce7e8d20d58c9c6439dc9415fbc317802", kill_on_drop: false }`
[INFO] [stdout] 92e000791d638c78d564f0a921d19cdce7e8d20d58c9c6439dc9415fbc317802
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f0b9073ead49849610fe5e887d2b53710112283d11fb54be2e0af3c6979b2d67
[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" "f0b9073ead49849610fe5e887d2b53710112283d11fb54be2e0af3c6979b2d67", 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-46cb2b760cee971a)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test test::test_read ... ok
[INFO] [stdout] test test::test_read_array ... ok
[INFO] [stdout] test test::test_good_strs_to_null ... ok
[INFO] [stdout] test test::test_good_strs ... 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_small2 - should panic ... ok
[INFO] [stdout] test test::test_too_small - should panic ... ok
[INFO] [stdout] test test::test_array_zero_sized - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[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" "f0b9073ead49849610fe5e887d2b53710112283d11fb54be2e0af3c6979b2d67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0b9073ead49849610fe5e887d2b53710112283d11fb54be2e0af3c6979b2d67", kill_on_drop: false }`
[INFO] [stdout] f0b9073ead49849610fe5e887d2b53710112283d11fb54be2e0af3c6979b2d67