[INFO] fetching crate rust-algorithm 0.1.4...
[INFO] testing rust-algorithm-0.1.4 against 1.49.0 for beta-1.50-1
[INFO] extracting crate rust-algorithm 0.1.4 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate rust-algorithm 0.1.4 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 rust-algorithm 0.1.4
[INFO] finished tweaking crates.io crate rust-algorithm 0.1.4
[INFO] tweaked toml for crates.io crate rust-algorithm 0.1.4 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate rust-algorithm 0.1.4 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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 743c09fd1a8e933998b21c88cf1f9003da472b7c738f8cfbb8695d68d36aed1f
[INFO] running `Command { std: "docker" "start" "-a" "743c09fd1a8e933998b21c88cf1f9003da472b7c738f8cfbb8695d68d36aed1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "743c09fd1a8e933998b21c88cf1f9003da472b7c738f8cfbb8695d68d36aed1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "743c09fd1a8e933998b21c88cf1f9003da472b7c738f8cfbb8695d68d36aed1f", kill_on_drop: false }`
[INFO] [stdout] 743c09fd1a8e933998b21c88cf1f9003da472b7c738f8cfbb8695d68d36aed1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 97ffba4e3ba24a2134cbd94cca72bc63723b179d7d26e77b86911c608292e719
[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" "97ffba4e3ba24a2134cbd94cca72bc63723b179d7d26e77b86911c608292e719", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-algorithm v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "97ffba4e3ba24a2134cbd94cca72bc63723b179d7d26e77b86911c608292e719", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97ffba4e3ba24a2134cbd94cca72bc63723b179d7d26e77b86911c608292e719", kill_on_drop: false }`
[INFO] [stdout] 97ffba4e3ba24a2134cbd94cca72bc63723b179d7d26e77b86911c608292e719
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stdout] fc2ac07156381be5031829f4fd9b2ede6725ef1be82b5a5257b8f1bac5d61349
[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" "fc2ac07156381be5031829f4fd9b2ede6725ef1be82b5a5257b8f1bac5d61349", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-algorithm v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.86s
[INFO] running `Command { std: "docker" "inspect" "fc2ac07156381be5031829f4fd9b2ede6725ef1be82b5a5257b8f1bac5d61349", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc2ac07156381be5031829f4fd9b2ede6725ef1be82b5a5257b8f1bac5d61349", kill_on_drop: false }`
[INFO] [stdout] fc2ac07156381be5031829f4fd9b2ede6725ef1be82b5a5257b8f1bac5d61349
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] b59899861d9bf4ad69807a1559cb27db4f93388f5c51b9c3ea06a94bad949c34
[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" "b59899861d9bf4ad69807a1559cb27db4f93388f5c51b9c3ea06a94bad949c34", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_algorithm-f43477f0774ec8c0
[INFO] [stdout] test tests::test_gcd_of_strings ... ok
[INFO] [stdout] test tests::test_gcd ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/integration_test-7e337970ec4a71e9
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests rust-algorithm
[INFO] [stdout] test test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - Algorithm::gcd (line 79) ... ok
[INFO] [stdout] test src/lib.rs - Algorithm::gcd_of_strings (line 36) ... 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" "b59899861d9bf4ad69807a1559cb27db4f93388f5c51b9c3ea06a94bad949c34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b59899861d9bf4ad69807a1559cb27db4f93388f5c51b9c3ea06a94bad949c34", kill_on_drop: false }`
[INFO] [stdout] b59899861d9bf4ad69807a1559cb27db4f93388f5c51b9c3ea06a94bad949c34