[INFO] fetching crate heatmap 0.6.6...
[INFO] testing heatmap-0.6.6 against 1.49.0 for beta-1.50-1
[INFO] extracting crate heatmap 0.6.6 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate heatmap 0.6.6 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 heatmap 0.6.6
[INFO] finished tweaking crates.io crate heatmap 0.6.6
[INFO] tweaked toml for crates.io crate heatmap 0.6.6 written to /workspace/builds/worker-10/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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] ad1efb74f888bd980a92ee3ca5cfc3b1d2ea6cc19290b1395b73bf858354b8a5
[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" "ad1efb74f888bd980a92ee3ca5cfc3b1d2ea6cc19290b1395b73bf858354b8a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad1efb74f888bd980a92ee3ca5cfc3b1d2ea6cc19290b1395b73bf858354b8a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad1efb74f888bd980a92ee3ca5cfc3b1d2ea6cc19290b1395b73bf858354b8a5", kill_on_drop: false }`
[INFO] [stdout] ad1efb74f888bd980a92ee3ca5cfc3b1d2ea6cc19290b1395b73bf858354b8a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] a1116a09c0ae9a6b38c229caa942abfd50f5915e904cab120e796b8f4b483021
[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" "a1116a09c0ae9a6b38c229caa942abfd50f5915e904cab120e796b8f4b483021", kill_on_drop: false }`
[INFO] [stderr]    Compiling histogram v0.6.9
[INFO] [stderr]    Compiling heatmap v0.6.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `Command { std: "docker" "inspect" "a1116a09c0ae9a6b38c229caa942abfd50f5915e904cab120e796b8f4b483021", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1116a09c0ae9a6b38c229caa942abfd50f5915e904cab120e796b8f4b483021", kill_on_drop: false }`
[INFO] [stdout] a1116a09c0ae9a6b38c229caa942abfd50f5915e904cab120e796b8f4b483021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 6e7e27710a881296f9a9b364493072725189a3f84a93dc26985196bf4044e27c
[INFO] running `Command { std: "docker" "start" "-a" "6e7e27710a881296f9a9b364493072725189a3f84a93dc26985196bf4044e27c", kill_on_drop: false }`
[INFO] [stderr]    Compiling heatmap v0.6.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `Command { std: "docker" "inspect" "6e7e27710a881296f9a9b364493072725189a3f84a93dc26985196bf4044e27c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e7e27710a881296f9a9b364493072725189a3f84a93dc26985196bf4044e27c", kill_on_drop: false }`
[INFO] [stdout] 6e7e27710a881296f9a9b364493072725189a3f84a93dc26985196bf4044e27c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 22ad78f2f40cbb34a8c073c8aba897ca0eccf4b3a2a8df488d36711b2916fad0
[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" "22ad78f2f40cbb34a8c073c8aba897ca0eccf4b3a2a8df488d36711b2916fad0", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/heatmap-9c81199e4474a9a1
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_increment ... ok
[INFO] [stdout] test tests::test_new_0 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests heatmap
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/lib.rs - (line 16) ... ok
[INFO] [stdout] test src/lib.rs - Heatmap::entries (line 395) ... ok
[INFO] [stdout] test src/lib.rs - Heatmap::increment_by (line 341) ... ok
[INFO] [stdout] test src/lib.rs - Heatmap::configure (line 250) ... ok
[INFO] [stdout] test src/lib.rs - Heatmap::new (line 238) ... ok
[INFO] [stdout] test src/lib.rs - Heatmap::clear (line 298) ... ok
[INFO] [stdout] test src/lib.rs - Heatmap::increment (line 323) ... ok
[INFO] [stdout] test src/lib.rs - Heatmap::merge (line 412) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "22ad78f2f40cbb34a8c073c8aba897ca0eccf4b3a2a8df488d36711b2916fad0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22ad78f2f40cbb34a8c073c8aba897ca0eccf4b3a2a8df488d36711b2916fad0", kill_on_drop: false }`
[INFO] [stdout] 22ad78f2f40cbb34a8c073c8aba897ca0eccf4b3a2a8df488d36711b2916fad0