[INFO] fetching crate cargo-vs 0.1.0...
[INFO] testing cargo-vs-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate cargo-vs 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate cargo-vs 0.1.0 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 cargo-vs 0.1.0
[INFO] finished tweaking crates.io crate cargo-vs 0.1.0
[INFO] tweaked toml for crates.io crate cargo-vs 0.1.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate cargo-vs 0.1.0 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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 97c0ff0e9a40192dedbe866f0c93f2c3b7ba77fc8be872dc12513a2bd9397b24
[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" "97c0ff0e9a40192dedbe866f0c93f2c3b7ba77fc8be872dc12513a2bd9397b24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97c0ff0e9a40192dedbe866f0c93f2c3b7ba77fc8be872dc12513a2bd9397b24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97c0ff0e9a40192dedbe866f0c93f2c3b7ba77fc8be872dc12513a2bd9397b24", kill_on_drop: false }`
[INFO] [stdout] 97c0ff0e9a40192dedbe866f0c93f2c3b7ba77fc8be872dc12513a2bd9397b24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 401ac223a2d21d1a79b8952faf39fbd6b43f67c41f3debf31cb238458edc83a5
[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" "401ac223a2d21d1a79b8952faf39fbd6b43f67c41f3debf31cb238458edc83a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling serde_json v1.0.58
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]    Compiling uuid v0.8.1
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling toml v0.5.7
[INFO] [stderr]    Compiling cargo-vs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.26s
[INFO] running `Command { std: "docker" "inspect" "401ac223a2d21d1a79b8952faf39fbd6b43f67c41f3debf31cb238458edc83a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "401ac223a2d21d1a79b8952faf39fbd6b43f67c41f3debf31cb238458edc83a5", kill_on_drop: false }`
[INFO] [stdout] 401ac223a2d21d1a79b8952faf39fbd6b43f67c41f3debf31cb238458edc83a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] fc90daedcae5ed01e354678dca5afca616c79871e20180148af5d150b0a8421a
[INFO] running `Command { std: "docker" "start" "-a" "fc90daedcae5ed01e354678dca5afca616c79871e20180148af5d150b0a8421a", kill_on_drop: false }`
[INFO] [stderr]    Compiling cargo-vs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `Command { std: "docker" "inspect" "fc90daedcae5ed01e354678dca5afca616c79871e20180148af5d150b0a8421a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc90daedcae5ed01e354678dca5afca616c79871e20180148af5d150b0a8421a", kill_on_drop: false }`
[INFO] [stdout] fc90daedcae5ed01e354678dca5afca616c79871e20180148af5d150b0a8421a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 8d5f2b1d5bee86508190459c0b7d23d51b98c1b880f155f3821814071eceb99e
[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" "8d5f2b1d5bee86508190459c0b7d23d51b98c1b880f155f3821814071eceb99e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[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] [stderr]      Running /opt/rustwide/target/debug/deps/cargo_vs2017-edb207c9d4b54b07
[INFO] running `Command { std: "docker" "inspect" "8d5f2b1d5bee86508190459c0b7d23d51b98c1b880f155f3821814071eceb99e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d5f2b1d5bee86508190459c0b7d23d51b98c1b880f155f3821814071eceb99e", kill_on_drop: false }`
[INFO] [stdout] 8d5f2b1d5bee86508190459c0b7d23d51b98c1b880f155f3821814071eceb99e