[INFO] fetching crate matschik-hello-world 0.2.0...
[INFO] testing matschik-hello-world-0.2.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate matschik-hello-world 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate matschik-hello-world 0.2.0 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 matschik-hello-world 0.2.0
[INFO] finished tweaking crates.io crate matschik-hello-world 0.2.0
[INFO] tweaked toml for crates.io crate matschik-hello-world 0.2.0 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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7ab6eeda78db8947389716c2f47e39b710d2b3c18317fe76e919c4dfac4852f1
[INFO] running `Command { std: "docker" "start" "-a" "7ab6eeda78db8947389716c2f47e39b710d2b3c18317fe76e919c4dfac4852f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ab6eeda78db8947389716c2f47e39b710d2b3c18317fe76e919c4dfac4852f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ab6eeda78db8947389716c2f47e39b710d2b3c18317fe76e919c4dfac4852f1", kill_on_drop: false }`
[INFO] [stdout] 7ab6eeda78db8947389716c2f47e39b710d2b3c18317fe76e919c4dfac4852f1
[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] [stdout] 51ed00bc0c8c4d34da9196dd577fece70333b48fad5c2ca37f6180d200207169
[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" "51ed00bc0c8c4d34da9196dd577fece70333b48fad5c2ca37f6180d200207169", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling matschik-hello-world v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.73s
[INFO] running `Command { std: "docker" "inspect" "51ed00bc0c8c4d34da9196dd577fece70333b48fad5c2ca37f6180d200207169", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51ed00bc0c8c4d34da9196dd577fece70333b48fad5c2ca37f6180d200207169", kill_on_drop: false }`
[INFO] [stdout] 51ed00bc0c8c4d34da9196dd577fece70333b48fad5c2ca37f6180d200207169
[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] [stdout] 5c5817ce8dd43b5c34a664d4e2d511ee1b2a2f6bc7bb7a466abf993ee9c75d16
[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" "5c5817ce8dd43b5c34a664d4e2d511ee1b2a2f6bc7bb7a466abf993ee9c75d16", kill_on_drop: false }`
[INFO] [stderr]    Compiling matschik-hello-world v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "5c5817ce8dd43b5c34a664d4e2d511ee1b2a2f6bc7bb7a466abf993ee9c75d16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c5817ce8dd43b5c34a664d4e2d511ee1b2a2f6bc7bb7a466abf993ee9c75d16", kill_on_drop: false }`
[INFO] [stdout] 5c5817ce8dd43b5c34a664d4e2d511ee1b2a2f6bc7bb7a466abf993ee9c75d16
[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] 1eabc5c914c840210bdcf290407b11f74a2c50c3dbd525d1f95493469aa57a5e
[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" "1eabc5c914c840210bdcf290407b11f74a2c50c3dbd525d1f95493469aa57a5e", 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/matschik_hello_world-befc6d93b5976760
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests matschik-hello-world
[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" "1eabc5c914c840210bdcf290407b11f74a2c50c3dbd525d1f95493469aa57a5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1eabc5c914c840210bdcf290407b11f74a2c50c3dbd525d1f95493469aa57a5e", kill_on_drop: false }`
[INFO] [stdout] 1eabc5c914c840210bdcf290407b11f74a2c50c3dbd525d1f95493469aa57a5e