[INFO] fetching crate if-let-return 0.1.1...
[INFO] testing if-let-return-0.1.1 against 1.47.0 for beta-1.48-1
[INFO] extracting crate if-let-return 0.1.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate if-let-return 0.1.1 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate if-let-return 0.1.1
[INFO] finished tweaking crates.io crate if-let-return 0.1.1
[INFO] tweaked toml for crates.io crate if-let-return 0.1.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "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] 7adf424100f7e98624cb59420d57f5b86972fb3149143481b14eac832579e2b4
[INFO] running `Command { std: "docker" "start" "-a" "7adf424100f7e98624cb59420d57f5b86972fb3149143481b14eac832579e2b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7adf424100f7e98624cb59420d57f5b86972fb3149143481b14eac832579e2b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7adf424100f7e98624cb59420d57f5b86972fb3149143481b14eac832579e2b4", kill_on_drop: false }`
[INFO] [stdout] 7adf424100f7e98624cb59420d57f5b86972fb3149143481b14eac832579e2b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "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] abb5a0f0071948a31b29b15c1e7b155f97af07e0531a8ec9ea8930171dff887c
[INFO] running `Command { std: "docker" "start" "-a" "abb5a0f0071948a31b29b15c1e7b155f97af07e0531a8ec9ea8930171dff887c", kill_on_drop: false }`
[INFO] [stderr]    Compiling if-let-return v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "abb5a0f0071948a31b29b15c1e7b155f97af07e0531a8ec9ea8930171dff887c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abb5a0f0071948a31b29b15c1e7b155f97af07e0531a8ec9ea8930171dff887c", kill_on_drop: false }`
[INFO] [stdout] abb5a0f0071948a31b29b15c1e7b155f97af07e0531a8ec9ea8930171dff887c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e4a1ca48e0641550f13103b9b94583ebaa57d727bebf58a7b7719a8cf215139
[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" "3e4a1ca48e0641550f13103b9b94583ebaa57d727bebf58a7b7719a8cf215139", kill_on_drop: false }`
[INFO] [stderr]    Compiling if-let-return v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "3e4a1ca48e0641550f13103b9b94583ebaa57d727bebf58a7b7719a8cf215139", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e4a1ca48e0641550f13103b9b94583ebaa57d727bebf58a7b7719a8cf215139", kill_on_drop: false }`
[INFO] [stdout] 3e4a1ca48e0641550f13103b9b94583ebaa57d727bebf58a7b7719a8cf215139
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 321230b5b7fde22ec0359baa29298fee5cbac4dc840d6f3355e09efb8db4eb40
[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" "321230b5b7fde22ec0359baa29298fee5cbac4dc840d6f3355e09efb8db4eb40", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/if_let_return-68327d169ee4aa49
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests if-let-return
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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" "321230b5b7fde22ec0359baa29298fee5cbac4dc840d6f3355e09efb8db4eb40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "321230b5b7fde22ec0359baa29298fee5cbac4dc840d6f3355e09efb8db4eb40", kill_on_drop: false }`
[INFO] [stdout] 321230b5b7fde22ec0359baa29298fee5cbac4dc840d6f3355e09efb8db4eb40
