[INFO] fetching crate hamming-heap 0.4.1...
[INFO] testing hamming-heap-0.4.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate hamming-heap 0.4.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate hamming-heap 0.4.1 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 hamming-heap 0.4.1
[INFO] finished tweaking crates.io crate hamming-heap 0.4.1
[INFO] tweaked toml for crates.io crate hamming-heap 0.4.1 written to /workspace/builds/worker-1/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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 21b4133fe0b4fb18b8cdefbed64a1747a3aa502bda943f16c252789d50eaa4b1
[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" "21b4133fe0b4fb18b8cdefbed64a1747a3aa502bda943f16c252789d50eaa4b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21b4133fe0b4fb18b8cdefbed64a1747a3aa502bda943f16c252789d50eaa4b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21b4133fe0b4fb18b8cdefbed64a1747a3aa502bda943f16c252789d50eaa4b1", kill_on_drop: false }`
[INFO] [stdout] 21b4133fe0b4fb18b8cdefbed64a1747a3aa502bda943f16c252789d50eaa4b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] c59e500cea68d8aeb4c8958a46c5c1be51ae71fb8742b836b636a66decf7bcc4
[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" "c59e500cea68d8aeb4c8958a46c5c1be51ae71fb8742b836b636a66decf7bcc4", kill_on_drop: false }`
[INFO] [stderr]    Compiling hamming-heap v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "c59e500cea68d8aeb4c8958a46c5c1be51ae71fb8742b836b636a66decf7bcc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c59e500cea68d8aeb4c8958a46c5c1be51ae71fb8742b836b636a66decf7bcc4", kill_on_drop: false }`
[INFO] [stdout] c59e500cea68d8aeb4c8958a46c5c1be51ae71fb8742b836b636a66decf7bcc4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 07f7a0e3befb9acc2aff7478a67108467f99e6346cc6f30cf1bf280a2ac1d3e6
[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" "07f7a0e3befb9acc2aff7478a67108467f99e6346cc6f30cf1bf280a2ac1d3e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling hamming-heap v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `Command { std: "docker" "inspect" "07f7a0e3befb9acc2aff7478a67108467f99e6346cc6f30cf1bf280a2ac1d3e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07f7a0e3befb9acc2aff7478a67108467f99e6346cc6f30cf1bf280a2ac1d3e6", kill_on_drop: false }`
[INFO] [stdout] 07f7a0e3befb9acc2aff7478a67108467f99e6346cc6f30cf1bf280a2ac1d3e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] d003e3097dbe7247f5681969fa855eec0d73ba284ac815021d6399214db2c131
[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" "d003e3097dbe7247f5681969fa855eec0d73ba284ac815021d6399214db2c131", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hamming_heap-4246c7dd3317c259
[INFO] [stdout] test fixed_heap::test_fixed_heap ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hamming-heap
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/fixed_heap.rs - fixed_heap::FixedHammingHeap (line 12) ... ok
[INFO] [stdout] test src/heap.rs - heap::HammingHeap (line 21) ... ok
[INFO] [stdout] test src/heap.rs - heap::HammingHeap (line 15) ... ok
[INFO] [stdout] test src/fixed_heap.rs - fixed_heap::FixedHammingHeap (line 18) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d003e3097dbe7247f5681969fa855eec0d73ba284ac815021d6399214db2c131", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d003e3097dbe7247f5681969fa855eec0d73ba284ac815021d6399214db2c131", kill_on_drop: false }`
[INFO] [stdout] d003e3097dbe7247f5681969fa855eec0d73ba284ac815021d6399214db2c131