[INFO] fetching crate testbench 0.7.3...
[INFO] testing testbench-0.7.3 against 1.49.0 for beta-1.50-1
[INFO] extracting crate testbench 0.7.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate testbench 0.7.3 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 testbench 0.7.3
[INFO] finished tweaking crates.io crate testbench 0.7.3
[INFO] tweaked toml for crates.io crate testbench 0.7.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c7c9c68c8e38875c9cc8b704ab7c3f7fcd61a78ade19105131cccaefe2a5ee7f
[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" "c7c9c68c8e38875c9cc8b704ab7c3f7fcd61a78ade19105131cccaefe2a5ee7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7c9c68c8e38875c9cc8b704ab7c3f7fcd61a78ade19105131cccaefe2a5ee7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7c9c68c8e38875c9cc8b704ab7c3f7fcd61a78ade19105131cccaefe2a5ee7f", kill_on_drop: false }`
[INFO] [stdout] c7c9c68c8e38875c9cc8b704ab7c3f7fcd61a78ade19105131cccaefe2a5ee7f
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--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] be9945b113cea111bd62878d9d513e3f0e9211866f5da62076571332c835c9e9
[INFO] running `Command { std: "docker" "start" "-a" "be9945b113cea111bd62878d9d513e3f0e9211866f5da62076571332c835c9e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling testbench v0.7.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "be9945b113cea111bd62878d9d513e3f0e9211866f5da62076571332c835c9e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be9945b113cea111bd62878d9d513e3f0e9211866f5da62076571332c835c9e9", kill_on_drop: false }`
[INFO] [stdout] be9945b113cea111bd62878d9d513e3f0e9211866f5da62076571332c835c9e9
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 63e88d1c4f2617ebd78feff79384d34abb8e722f57348b21ace47d01f238e479
[INFO] running `Command { std: "docker" "start" "-a" "63e88d1c4f2617ebd78feff79384d34abb8e722f57348b21ace47d01f238e479", kill_on_drop: false }`
[INFO] [stderr]    Compiling testbench v0.7.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `Command { std: "docker" "inspect" "63e88d1c4f2617ebd78feff79384d34abb8e722f57348b21ace47d01f238e479", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63e88d1c4f2617ebd78feff79384d34abb8e722f57348b21ace47d01f238e479", kill_on_drop: false }`
[INFO] [stdout] 63e88d1c4f2617ebd78feff79384d34abb8e722f57348b21ace47d01f238e479
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8cccf2c92b7fcd0b01bad0d6f628287a96cafcdc993214a6924c9533d8a6aaa2
[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" "8cccf2c92b7fcd0b01bad0d6f628287a96cafcdc993214a6924c9533d8a6aaa2", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 10 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/testbench-c791cb1073015c36
[INFO] [stdout] test benchs::bench_relaxed ... ignored
[INFO] [stdout] test benchs::bench_seqcst ... ignored
[INFO] [stdout] test race_cell::tests::protected_transaction ... ignored
[INFO] [stdout] test race_cell::tests::unprotected_race ... ignored
[INFO] [stdout] test race_cell::tests::clone ... ok
[INFO] [stdout] test race_cell::tests::initial_state ... ok
[INFO] [stdout] test race_cell::tests::consistent_read ... ok
[INFO] [stdout] test race_cell::tests::inconsistent_read ... ok
[INFO] [stdout] test tests::fetch_and_or_xor ... ok
[INFO] [stdout] test tests::swap_and_fetch_add ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 4 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests testbench
[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" "8cccf2c92b7fcd0b01bad0d6f628287a96cafcdc993214a6924c9533d8a6aaa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cccf2c92b7fcd0b01bad0d6f628287a96cafcdc993214a6924c9533d8a6aaa2", kill_on_drop: false }`
[INFO] [stdout] 8cccf2c92b7fcd0b01bad0d6f628287a96cafcdc993214a6924c9533d8a6aaa2