[INFO] fetching crate rcut 0.0.48...
[INFO] testing rcut-0.0.48 against 1.49.0 for beta-1.50-1
[INFO] extracting crate rcut 0.0.48 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate rcut 0.0.48 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 rcut 0.0.48
[INFO] finished tweaking crates.io crate rcut 0.0.48
[INFO] tweaked toml for crates.io crate rcut 0.0.48 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate rcut 0.0.48 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-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" "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] 2a88aacbbc4e2bc98b39ead9f9e24c79a95e1cd87cab12915c225b5584a34e5b
[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" "2a88aacbbc4e2bc98b39ead9f9e24c79a95e1cd87cab12915c225b5584a34e5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a88aacbbc4e2bc98b39ead9f9e24c79a95e1cd87cab12915c225b5584a34e5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a88aacbbc4e2bc98b39ead9f9e24c79a95e1cd87cab12915c225b5584a34e5b", kill_on_drop: false }`
[INFO] [stdout] 2a88aacbbc4e2bc98b39ead9f9e24c79a95e1cd87cab12915c225b5584a34e5b
[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" "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] dca7a4a1f0530b4a2953858886613311a5577ce5dff5a15f0b013eb23401cfaa
[INFO] running `Command { std: "docker" "start" "-a" "dca7a4a1f0530b4a2953858886613311a5577ce5dff5a15f0b013eb23401cfaa", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling rtools-traits v0.0.48
[INFO] [stderr]    Compiling rcut-lib v0.0.48
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling rcut v0.0.48 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.51s
[INFO] running `Command { std: "docker" "inspect" "dca7a4a1f0530b4a2953858886613311a5577ce5dff5a15f0b013eb23401cfaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dca7a4a1f0530b4a2953858886613311a5577ce5dff5a15f0b013eb23401cfaa", kill_on_drop: false }`
[INFO] [stdout] dca7a4a1f0530b4a2953858886613311a5577ce5dff5a15f0b013eb23401cfaa
[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" "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] b42104e1f74a3f15cd1a73719ba6038c137d47bbaeef4490d6cb91b1216e4580
[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" "b42104e1f74a3f15cd1a73719ba6038c137d47bbaeef4490d6cb91b1216e4580", kill_on_drop: false }`
[INFO] [stderr]    Compiling rcut v0.0.48 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "b42104e1f74a3f15cd1a73719ba6038c137d47bbaeef4490d6cb91b1216e4580", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b42104e1f74a3f15cd1a73719ba6038c137d47bbaeef4490d6cb91b1216e4580", kill_on_drop: false }`
[INFO] [stdout] b42104e1f74a3f15cd1a73719ba6038c137d47bbaeef4490d6cb91b1216e4580
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f09b5eceff60a09e90865d398fa89d71b502b4538b272aec4d05c7c6548cae9b
[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" "f09b5eceff60a09e90865d398fa89d71b502b4538b272aec4d05c7c6548cae9b", 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/rcut-6bba21bb6b611e50
[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" "f09b5eceff60a09e90865d398fa89d71b502b4538b272aec4d05c7c6548cae9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f09b5eceff60a09e90865d398fa89d71b502b4538b272aec4d05c7c6548cae9b", kill_on_drop: false }`
[INFO] [stdout] f09b5eceff60a09e90865d398fa89d71b502b4538b272aec4d05c7c6548cae9b