[INFO] fetching crate tubular 0.0.1...
[INFO] testing tubular-0.0.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate tubular 0.0.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate tubular 0.0.1 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tubular 0.0.1
[INFO] finished tweaking crates.io crate tubular 0.0.1
[INFO] tweaked toml for crates.io crate tubular 0.0.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a1e05834637eb31c5794f1ce02e9e1d437f53a0010486409c390428c86d17be1
[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" "a1e05834637eb31c5794f1ce02e9e1d437f53a0010486409c390428c86d17be1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1e05834637eb31c5794f1ce02e9e1d437f53a0010486409c390428c86d17be1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1e05834637eb31c5794f1ce02e9e1d437f53a0010486409c390428c86d17be1", kill_on_drop: false }`
[INFO] [stdout] a1e05834637eb31c5794f1ce02e9e1d437f53a0010486409c390428c86d17be1
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a62ae564268c90209675c8aeb9ec869720401f3c9cadc33f6651295866ccc568
[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" "a62ae564268c90209675c8aeb9ec869720401f3c9cadc33f6651295866ccc568", kill_on_drop: false }`
[INFO] [stderr]    Compiling tubular v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.44s
[INFO] running `Command { std: "docker" "inspect" "a62ae564268c90209675c8aeb9ec869720401f3c9cadc33f6651295866ccc568", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a62ae564268c90209675c8aeb9ec869720401f3c9cadc33f6651295866ccc568", kill_on_drop: false }`
[INFO] [stdout] a62ae564268c90209675c8aeb9ec869720401f3c9cadc33f6651295866ccc568
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71eb00149a0ecca6a0271ffdd5171a75e6fbf0bf625d9885fb8ea2a40d3f114d
[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" "71eb00149a0ecca6a0271ffdd5171a75e6fbf0bf625d9885fb8ea2a40d3f114d", kill_on_drop: false }`
[INFO] [stderr]    Compiling tubular v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.47s
[INFO] running `Command { std: "docker" "inspect" "71eb00149a0ecca6a0271ffdd5171a75e6fbf0bf625d9885fb8ea2a40d3f114d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71eb00149a0ecca6a0271ffdd5171a75e6fbf0bf625d9885fb8ea2a40d3f114d", kill_on_drop: false }`
[INFO] [stdout] 71eb00149a0ecca6a0271ffdd5171a75e6fbf0bf625d9885fb8ea2a40d3f114d
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bb367c175801521e9db1a7ed611c091f613a62db3aee6c1c917ff065772a6e72
[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" "bb367c175801521e9db1a7ed611c091f613a62db3aee6c1c917ff065772a6e72", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tubular-e514a0543d31ba16
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tubular
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::column_iterator_impl ... ok
[INFO] [stdout] test tests::displays_as_table ... ok
[INFO] [stdout] test tests::flexibly_add_columns ... ok
[INFO] [stdout] test tests::dynamically_add_columns ... ok
[INFO] [stdout] test tests::row_iterator_impl ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] warning: unknown attribute `no-run`. Did you mean `no_run`?
[INFO] [stderr]    --> /opt/rustwide/workdir/src/dataframe.rs:17:1
[INFO] [stderr]     |
[INFO] [stderr] 17  | / /// A 2D matrix of cells of mixed types useful for exploratory data analysis.
[INFO] [stderr] 18  | | ///
[INFO] [stderr] 19  | | /// ## Basic Concept
[INFO] [stderr] 20  | | ///
[INFO] [stderr] ...   |
[INFO] [stderr] 117 | | /// [`Header`]: type.Header.html
[INFO] [stderr] 118 | | /// [`Row`]: struct.Row.html
[INFO] [stderr]     | |____________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(invalid_codeblock_attributes)]` on by default
[INFO] [stderr]     = help: the code block will either not be tested if not marked as a rust one or will be run (which you might not want)
[INFO] [stderr] 
[INFO] [stderr] warning: unknown attribute `no-run`. Did you mean `no_run`?
[INFO] [stderr]    --> /opt/rustwide/workdir/src/dataframe.rs:17:1
[INFO] [stderr]     |
[INFO] [stderr] 17  | / /// A 2D matrix of cells of mixed types useful for exploratory data analysis.
[INFO] [stderr] 18  | | ///
[INFO] [stderr] 19  | | /// ## Basic Concept
[INFO] [stderr] 20  | | ///
[INFO] [stderr] ...   |
[INFO] [stderr] 117 | | /// [`Header`]: type.Header.html
[INFO] [stderr] 118 | | /// [`Row`]: struct.Row.html
[INFO] [stderr]     | |____________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: the code block will either not be tested if not marked as a rust one or will be run (which you might not want)
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test src/column.rs - column::Column::len (line 159) ... ok
[INFO] [stdout] test src/dataframe.rs - dataframe::DataFrame (line 62) ... ok
[INFO] [stdout] test src/column.rs - column::column::Column (line 134) ... ok
[INFO] [stdout] test src/dataframe.rs - dataframe::DataFrame (line 70) ... ok
[INFO] [stdout] test src/dataframe.rs - dataframe::DataFrame::rows (line 208) ... ok
[INFO] [stdout] test src/dataframe.rs - dataframe::DataFrame::len (line 167) ... ok
[INFO] [stdout] test src/row.rs - row::Row (line 17) ... ok
[INFO] [stdout] test src/dataframe.rs - dataframe::DataFrame::headers (line 179) ... ok
[INFO] [stdout] test src/dataframe.rs - dataframe::DataFrame (line 83) ... ok
[INFO] [stdout] test src/dataframe.rs - dataframe::DataFrame (line 105) ... ok
[INFO] [stdout] test src/dataframe.rs - dataframe::DataFrame::push (line 132) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 5.38s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bb367c175801521e9db1a7ed611c091f613a62db3aee6c1c917ff065772a6e72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb367c175801521e9db1a7ed611c091f613a62db3aee6c1c917ff065772a6e72", kill_on_drop: false }`
[INFO] [stdout] bb367c175801521e9db1a7ed611c091f613a62db3aee6c1c917ff065772a6e72