[INFO] cloning repository https://github.com/angelini/dataframes
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/angelini/dataframes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fangelini%2Fdataframes", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fangelini%2Fdataframes'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ce7514cc3a1a58a7f739019c356ef327f9a54e06
[INFO] testing angelini/dataframes against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fangelini%2Fdataframes" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/angelini/dataframes 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 git repo https://github.com/angelini/dataframes
[INFO] finished tweaking git repo https://github.com/angelini/dataframes
[INFO] tweaked toml for git repo https://github.com/angelini/dataframes written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/angelini/dataframes 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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 73a63fc85772de6558bb7e1cbb6a4bb91764ccee12d082cab33d140cd46ed410
[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" "73a63fc85772de6558bb7e1cbb6a4bb91764ccee12d082cab33d140cd46ed410", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73a63fc85772de6558bb7e1cbb6a4bb91764ccee12d082cab33d140cd46ed410", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73a63fc85772de6558bb7e1cbb6a4bb91764ccee12d082cab33d140cd46ed410", kill_on_drop: false }`
[INFO] [stdout] 73a63fc85772de6558bb7e1cbb6a4bb91764ccee12d082cab33d140cd46ed410
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 352aae6519e9b8f1b7e4f5dbaed6d34d03f355c4e19476798022a3623492d3c6
[INFO] running `Command { std: "docker" "start" "-a" "352aae6519e9b8f1b7e4f5dbaed6d34d03f355c4e19476798022a3623492d3c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling dataframes v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/main.rs:168:17
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 try!(write!(f, "{}", col))
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/main.rs:170:13
[INFO] [stdout]     |
[INFO] [stdout] 170 |             try!(writeln!(f, ""))
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `Command { std: "docker" "inspect" "352aae6519e9b8f1b7e4f5dbaed6d34d03f355c4e19476798022a3623492d3c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "352aae6519e9b8f1b7e4f5dbaed6d34d03f355c4e19476798022a3623492d3c6", kill_on_drop: false }`
[INFO] [stdout] 352aae6519e9b8f1b7e4f5dbaed6d34d03f355c4e19476798022a3623492d3c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] b70caa31d58d2841d67bc9853519d40e7f5add5b8c55fe30151a8620172f9772
[INFO] running `Command { std: "docker" "start" "-a" "b70caa31d58d2841d67bc9853519d40e7f5add5b8c55fe30151a8620172f9772", kill_on_drop: false }`
[INFO] [stderr]    Compiling dataframes v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/main.rs:168:17
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 try!(write!(f, "{}", col))
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/main.rs:170:13
[INFO] [stdout]     |
[INFO] [stdout] 170 |             try!(writeln!(f, ""))
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "b70caa31d58d2841d67bc9853519d40e7f5add5b8c55fe30151a8620172f9772", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b70caa31d58d2841d67bc9853519d40e7f5add5b8c55fe30151a8620172f9772", kill_on_drop: false }`
[INFO] [stdout] b70caa31d58d2841d67bc9853519d40e7f5add5b8c55fe30151a8620172f9772
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 0b72ffa2d39461de2b770f7909b24fda3600deaf1e0ff43dc00714d4a7c1f2ae
[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" "0b72ffa2d39461de2b770f7909b24fda3600deaf1e0ff43dc00714d4a7c1f2ae", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:168:17
[INFO] [stderr]     |
[INFO] [stderr] 168 |                 try!(write!(f, "{}", col))
[INFO] [stderr]     |                 ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:170:13
[INFO] [stderr]     |
[INFO] [stderr] 170 |             try!(writeln!(f, ""))
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.40s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dataframes-6b3877e7b2affe9d
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::can_detect_empty_col ... ok
[INFO] [stdout] test tests::optimize_will_remove_an_empty_col ... ok
[INFO] [stdout] test tests::step_can_find_the_widest_filter_action ... ok
[INFO] [stdout] test tests::can_select_all_columns_from_query ... ok
[INFO] [stdout] test tests::optimize_will_move_filters_upwards ... ok
[INFO] [stdout] test tests::can_select_column_from_query ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0b72ffa2d39461de2b770f7909b24fda3600deaf1e0ff43dc00714d4a7c1f2ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b72ffa2d39461de2b770f7909b24fda3600deaf1e0ff43dc00714d4a7c1f2ae", kill_on_drop: false }`
[INFO] [stdout] 0b72ffa2d39461de2b770f7909b24fda3600deaf1e0ff43dc00714d4a7c1f2ae