[INFO] fetching crate gain-lep 0.1.1...
[INFO] testing gain-lep-0.1.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate gain-lep 0.1.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate gain-lep 0.1.1 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 gain-lep 0.1.1
[INFO] finished tweaking crates.io crate gain-lep 0.1.1
[INFO] tweaked toml for crates.io crate gain-lep 0.1.1 written to /workspace/builds/worker-8/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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 2d05a5d3ec00de23052648b210c3ad4fe99fc385c40852428b690ea605d2f73a
[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" "2d05a5d3ec00de23052648b210c3ad4fe99fc385c40852428b690ea605d2f73a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d05a5d3ec00de23052648b210c3ad4fe99fc385c40852428b690ea605d2f73a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d05a5d3ec00de23052648b210c3ad4fe99fc385c40852428b690ea605d2f73a", kill_on_drop: false }`
[INFO] [stdout] 2d05a5d3ec00de23052648b210c3ad4fe99fc385c40852428b690ea605d2f73a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] e1fca4ec10baae15f617ed7a18ec0b17e8f1af9b12fd54068c99050c813aca0d
[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" "e1fca4ec10baae15f617ed7a18ec0b17e8f1af9b12fd54068c99050c813aca0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.8
[INFO] [stderr]    Compiling lep v0.4.4
[INFO] [stderr]    Compiling async-task v1.3.1
[INFO] [stderr]    Compiling futures-channel v0.3.8
[INFO] [stderr]    Compiling gain v0.3.0
[INFO] [stderr]    Compiling gain-lep v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.38s
[INFO] running `Command { std: "docker" "inspect" "e1fca4ec10baae15f617ed7a18ec0b17e8f1af9b12fd54068c99050c813aca0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1fca4ec10baae15f617ed7a18ec0b17e8f1af9b12fd54068c99050c813aca0d", kill_on_drop: false }`
[INFO] [stdout] e1fca4ec10baae15f617ed7a18ec0b17e8f1af9b12fd54068c99050c813aca0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 47d6e58a3595294395efc4985ef798bd4ed3a16f419f3a1f6208f0dc1b2f1662
[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" "47d6e58a3595294395efc4985ef798bd4ed3a16f419f3a1f6208f0dc1b2f1662", kill_on_drop: false }`
[INFO] [stderr]    Compiling gain-lep v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "47d6e58a3595294395efc4985ef798bd4ed3a16f419f3a1f6208f0dc1b2f1662", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47d6e58a3595294395efc4985ef798bd4ed3a16f419f3a1f6208f0dc1b2f1662", kill_on_drop: false }`
[INFO] [stdout] 47d6e58a3595294395efc4985ef798bd4ed3a16f419f3a1f6208f0dc1b2f1662
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 6a132ffbedd5a9ed59be74c1a7035187ca07fe6d621592f203f8ce39d4dff9f3
[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" "6a132ffbedd5a9ed59be74c1a7035187ca07fe6d621592f203f8ce39d4dff9f3", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/gain_lep-c6222d6cec5d36d6
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests gain-lep
[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" "6a132ffbedd5a9ed59be74c1a7035187ca07fe6d621592f203f8ce39d4dff9f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a132ffbedd5a9ed59be74c1a7035187ca07fe6d621592f203f8ce39d4dff9f3", kill_on_drop: false }`
[INFO] [stdout] 6a132ffbedd5a9ed59be74c1a7035187ca07fe6d621592f203f8ce39d4dff9f3