[INFO] fetching crate roman 0.1.6...
[INFO] testing roman-0.1.6 against 1.49.0 for beta-1.50-1
[INFO] extracting crate roman 0.1.6 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate roman 0.1.6 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 roman 0.1.6
[INFO] finished tweaking crates.io crate roman 0.1.6
[INFO] tweaked toml for crates.io crate roman 0.1.6 written to /workspace/builds/worker-2/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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc992207cadb68cbaa27ce64fe4811b0d88bc10d54858d0ea5c9635ad0b54a28
[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" "fc992207cadb68cbaa27ce64fe4811b0d88bc10d54858d0ea5c9635ad0b54a28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc992207cadb68cbaa27ce64fe4811b0d88bc10d54858d0ea5c9635ad0b54a28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc992207cadb68cbaa27ce64fe4811b0d88bc10d54858d0ea5c9635ad0b54a28", kill_on_drop: false }`
[INFO] [stdout] fc992207cadb68cbaa27ce64fe4811b0d88bc10d54858d0ea5c9635ad0b54a28
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57436899bffdeeb013bea51cf90a2b43438fb994297f0afc4fa39bac4cee7614
[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" "57436899bffdeeb013bea51cf90a2b43438fb994297f0afc4fa39bac4cee7614", kill_on_drop: false }`
[INFO] [stderr]    Compiling roman v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "57436899bffdeeb013bea51cf90a2b43438fb994297f0afc4fa39bac4cee7614", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57436899bffdeeb013bea51cf90a2b43438fb994297f0afc4fa39bac4cee7614", kill_on_drop: false }`
[INFO] [stdout] 57436899bffdeeb013bea51cf90a2b43438fb994297f0afc4fa39bac4cee7614
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/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] fbdb09b28e2b1cfb8cb271ee2c71c1f2e6adb1f84b04f27045e580d59f616900
[INFO] running `Command { std: "docker" "start" "-a" "fbdb09b28e2b1cfb8cb271ee2c71c1f2e6adb1f84b04f27045e580d59f616900", kill_on_drop: false }`
[INFO] [stderr]    Compiling roman v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "fbdb09b28e2b1cfb8cb271ee2c71c1f2e6adb1f84b04f27045e580d59f616900", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbdb09b28e2b1cfb8cb271ee2c71c1f2e6adb1f84b04f27045e580d59f616900", kill_on_drop: false }`
[INFO] [stdout] fbdb09b28e2b1cfb8cb271ee2c71c1f2e6adb1f84b04f27045e580d59f616900
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f92f77dc7550c4c349a61a7d75470abf3cccffdef151b5abf6bc30bfaf1dcb18
[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" "f92f77dc7550c4c349a61a7d75470abf3cccffdef151b5abf6bc30bfaf1dcb18", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/roman-04d4cccf6b74b75c
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_to_roman ... ok
[INFO] [stdout] test test_from ... ok
[INFO] [stdout] test test_to_from ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests roman
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - from (line 55) ... ok
[INFO] [stdout] test src/lib.rs - to (line 20) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f92f77dc7550c4c349a61a7d75470abf3cccffdef151b5abf6bc30bfaf1dcb18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f92f77dc7550c4c349a61a7d75470abf3cccffdef151b5abf6bc30bfaf1dcb18", kill_on_drop: false }`
[INFO] [stdout] f92f77dc7550c4c349a61a7d75470abf3cccffdef151b5abf6bc30bfaf1dcb18