[INFO] fetching crate NULL 1.1.0...
[INFO] testing NULL-1.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate NULL 1.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate NULL 1.1.0 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 NULL 1.1.0
[INFO] finished tweaking crates.io crate NULL 1.1.0
[INFO] tweaked toml for crates.io crate NULL 1.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate NULL 1.1.0 already has a lockfile, it will not be regenerated
[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-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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 626e29083e29d7d9ca97fdfb1a1fc77f8b305e7fdcb6ff5e7605cc15a47587f9
[INFO] running `Command { std: "docker" "start" "-a" "626e29083e29d7d9ca97fdfb1a1fc77f8b305e7fdcb6ff5e7605cc15a47587f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "626e29083e29d7d9ca97fdfb1a1fc77f8b305e7fdcb6ff5e7605cc15a47587f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "626e29083e29d7d9ca97fdfb1a1fc77f8b305e7fdcb6ff5e7605cc15a47587f9", kill_on_drop: false }`
[INFO] [stdout] 626e29083e29d7d9ca97fdfb1a1fc77f8b305e7fdcb6ff5e7605cc15a47587f9
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b42e77a9d4cfbfe8baddd4067b5d1546f759e06a98ccb7be7b958c1afe1bf3e9
[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" "b42e77a9d4cfbfe8baddd4067b5d1546f759e06a98ccb7be7b958c1afe1bf3e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling hamming v0.1.3
[INFO] [stderr]    Compiling smallvec v1.4.2
[INFO] [stderr]    Compiling primal-estimate v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling primal-bit v0.3.0
[INFO] [stderr]    Compiling primal-sieve v0.3.1
[INFO] [stderr]    Compiling NULL v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.75s
[INFO] running `Command { std: "docker" "inspect" "b42e77a9d4cfbfe8baddd4067b5d1546f759e06a98ccb7be7b958c1afe1bf3e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b42e77a9d4cfbfe8baddd4067b5d1546f759e06a98ccb7be7b958c1afe1bf3e9", kill_on_drop: false }`
[INFO] [stdout] b42e77a9d4cfbfe8baddd4067b5d1546f759e06a98ccb7be7b958c1afe1bf3e9
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20828b57eb6905aafbf96763eaf4890427fb0b74abb5ce5d34192cfc4cdc0f45
[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" "20828b57eb6905aafbf96763eaf4890427fb0b74abb5ce5d34192cfc4cdc0f45", kill_on_drop: false }`
[INFO] [stderr]    Compiling NULL v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `Command { std: "docker" "inspect" "20828b57eb6905aafbf96763eaf4890427fb0b74abb5ce5d34192cfc4cdc0f45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20828b57eb6905aafbf96763eaf4890427fb0b74abb5ce5d34192cfc4cdc0f45", kill_on_drop: false }`
[INFO] [stdout] 20828b57eb6905aafbf96763eaf4890427fb0b74abb5ce5d34192cfc4cdc0f45
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2dbd655d99c8c32429465af562f0a43a08e1d4bbb61606d1d3f3d979821a0a9e
[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" "2dbd655d99c8c32429465af562f0a43a08e1d4bbb61606d1d3f3d979821a0a9e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/NULL-9bfd9e2f71e263f3
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test vm::tests::hello_world ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2dbd655d99c8c32429465af562f0a43a08e1d4bbb61606d1d3f3d979821a0a9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dbd655d99c8c32429465af562f0a43a08e1d4bbb61606d1d3f3d979821a0a9e", kill_on_drop: false }`
[INFO] [stdout] 2dbd655d99c8c32429465af562f0a43a08e1d4bbb61606d1d3f3d979821a0a9e