[INFO] fetching crate counter 0.5.2...
[INFO] testing counter-0.5.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate counter 0.5.2 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate counter 0.5.2 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 counter 0.5.2
[INFO] finished tweaking crates.io crate counter 0.5.2
[INFO] tweaked toml for crates.io crate counter 0.5.2 written to /workspace/builds/worker-12/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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] a452b00e8ad50648f0f463036088a4bb5d8960e8f92cd18a57e8ebe78dfdca4d
[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" "a452b00e8ad50648f0f463036088a4bb5d8960e8f92cd18a57e8ebe78dfdca4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a452b00e8ad50648f0f463036088a4bb5d8960e8f92cd18a57e8ebe78dfdca4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a452b00e8ad50648f0f463036088a4bb5d8960e8f92cd18a57e8ebe78dfdca4d", kill_on_drop: false }`
[INFO] [stdout] a452b00e8ad50648f0f463036088a4bb5d8960e8f92cd18a57e8ebe78dfdca4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] c76fe763e919e7b7d3f79204ce688f643f45b712e77ea012936e40d3ad57238e
[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" "c76fe763e919e7b7d3f79204ce688f643f45b712e77ea012936e40d3ad57238e", kill_on_drop: false }`
[INFO] [stderr]    Compiling counter v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "c76fe763e919e7b7d3f79204ce688f643f45b712e77ea012936e40d3ad57238e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c76fe763e919e7b7d3f79204ce688f643f45b712e77ea012936e40d3ad57238e", kill_on_drop: false }`
[INFO] [stdout] c76fe763e919e7b7d3f79204ce688f643f45b712e77ea012936e40d3ad57238e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 4b99d95b6e038ead91dcdf60fb0f5d36519ec06b1adce1624ebcc877da5e38e8
[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" "4b99d95b6e038ead91dcdf60fb0f5d36519ec06b1adce1624ebcc877da5e38e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling counter v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.37s
[INFO] running `Command { std: "docker" "inspect" "4b99d95b6e038ead91dcdf60fb0f5d36519ec06b1adce1624ebcc877da5e38e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b99d95b6e038ead91dcdf60fb0f5d36519ec06b1adce1624ebcc877da5e38e8", kill_on_drop: false }`
[INFO] [stdout] 4b99d95b6e038ead91dcdf60fb0f5d36519ec06b1adce1624ebcc877da5e38e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] d60e306e62d6b30bd8bef3a240e305162f56eecf43a6350663a4768173961dd2
[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" "d60e306e62d6b30bd8bef3a240e305162f56eecf43a6350663a4768173961dd2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/counter-80401e25e2b5b544
[INFO] [stdout] running 26 tests
[INFO] [stdout] test tests::test_intersection ... ok
[INFO] [stdout] test tests::test_most_common ... ok
[INFO] [stdout] test tests::test_most_common_ordered ... ok
[INFO] [stdout] test tests::test_most_common_tiebreaker ... ok
[INFO] [stdout] test tests::test_most_common_tiebreaker_reversed ... ok
[INFO] [stdout] test tests::test_non_usize_count ... ok
[INFO] [stdout] test tests::test_sub ... ok
[INFO] [stdout] test tests::test_extend_tuple ... ok
[INFO] [stdout] test tests::test_sub_update_iterable ... ok
[INFO] [stdout] test tests::test_extend_simple ... ok
[INFO] [stdout] test tests::test_subtract ... ok
[INFO] [stdout] test tests::test_union ... ok
[INFO] [stdout] test tests::test_update ... ok
[INFO] [stdout] test tests::test_delete_key_from_backing_map ... ok
[INFO] [stdout] test tests::test_creation ... ok
[INFO] [stdout] test tests::test_count_minimal_type ... ok
[INFO] [stdout] test tests::test_extend_tuple_with_duplicates ... ok
[INFO] [stdout] test tests::test_add ... ok
[INFO] [stdout] test tests::test_sub_update_counter ... ok
[INFO] [stdout] test tests::test_add_update_counter ... ok
[INFO] [stdout] test tests::test_from_iter_tuple ... ok
[INFO] [stdout] test tests::test_add_update_iterable ... ok
[INFO] [stdout] test tests::test_from_iter_simple ... ok
[INFO] [stdout] test tests::test_from_iter_tuple_with_duplicates ... ok
[INFO] [stdout] test tests::test_composite_add_sub ... ok
[INFO] [stdout] test tests::test_collect ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests counter
[INFO] [stdout] 
[INFO] [stdout] running 34 tests
[INFO] [stdout] test src/lib.rs - (line 150) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::add_assign (line 631) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::add (line 360) ... ok
[INFO] [stdout] test src/lib.rs - (line 49) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::add_assign (line 330) ... ok
[INFO] [stdout] test src/lib.rs - (line 85) ... ok
[INFO] [stdout] test src/lib.rs - (line 94) ... ok
[INFO] [stdout] test src/lib.rs - (line 9) ... ok
[INFO] [stdout] test src/lib.rs - (line 108) ... ok
[INFO] [stdout] test src/lib.rs - (line 17) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::bitand (line 458) ... ok
[INFO] [stdout] test src/lib.rs - (line 37) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::add (line 656) ... ok
[INFO] [stdout] test src/lib.rs - (line 24) ... ok
[INFO] [stdout] test src/lib.rs - (line 60) ... ok
[INFO] [stdout] test src/lib.rs - (line 71) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::extend (line 775) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::from_iter (line 749) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::index (line 579) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::from_iter (line 728) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::bitor (line 500) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::index_mut (line 600) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::extend (line 796) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::index (line 568) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::most_common (line 252) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::index_mut (line 611) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::extend (line 821) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::most_common_tiebreaker (line 272) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::sub_assign (line 681) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::sub_assign (line 387) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::most_common_ordered (line 310) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::sub (line 430) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::sub (line 705) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::subtract (line 218) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 34 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d60e306e62d6b30bd8bef3a240e305162f56eecf43a6350663a4768173961dd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d60e306e62d6b30bd8bef3a240e305162f56eecf43a6350663a4768173961dd2", kill_on_drop: false }`
[INFO] [stdout] d60e306e62d6b30bd8bef3a240e305162f56eecf43a6350663a4768173961dd2