[INFO] fetching crate num256 0.3.0...
[INFO] testing num256-0.3.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate num256 0.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate num256 0.3.0 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 num256 0.3.0
[INFO] finished tweaking crates.io crate num256 0.3.0
[INFO] tweaked toml for crates.io crate num256 0.3.0 written to /workspace/builds/worker-4/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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 09bfedb6122fbf47c647ed9d4e93259d7028a7516af4acb132995f3866f33106
[INFO] running `Command { std: "docker" "start" "-a" "09bfedb6122fbf47c647ed9d4e93259d7028a7516af4acb132995f3866f33106", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09bfedb6122fbf47c647ed9d4e93259d7028a7516af4acb132995f3866f33106", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09bfedb6122fbf47c647ed9d4e93259d7028a7516af4acb132995f3866f33106", kill_on_drop: false }`
[INFO] [stdout] 09bfedb6122fbf47c647ed9d4e93259d7028a7516af4acb132995f3866f33106
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] 30ad0808d428f2645967b1a9d301b51228833e6396a639aab6ef04f85404be9a
[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" "30ad0808d428f2645967b1a9d301b51228833e6396a639aab6ef04f85404be9a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.3.1
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling num v0.3.1
[INFO] [stderr]    Compiling num256 v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.88s
[INFO] running `Command { std: "docker" "inspect" "30ad0808d428f2645967b1a9d301b51228833e6396a639aab6ef04f85404be9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30ad0808d428f2645967b1a9d301b51228833e6396a639aab6ef04f85404be9a", kill_on_drop: false }`
[INFO] [stdout] 30ad0808d428f2645967b1a9d301b51228833e6396a639aab6ef04f85404be9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 7ee3b5f5020cc2d9d018b7f81d1a300c9c46224e82c136f7cc48e42aa5bbb3fb
[INFO] running `Command { std: "docker" "start" "-a" "7ee3b5f5020cc2d9d018b7f81d1a300c9c46224e82c136f7cc48e42aa5bbb3fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling num256 v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.44s
[INFO] running `Command { std: "docker" "inspect" "7ee3b5f5020cc2d9d018b7f81d1a300c9c46224e82c136f7cc48e42aa5bbb3fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ee3b5f5020cc2d9d018b7f81d1a300c9c46224e82c136f7cc48e42aa5bbb3fb", kill_on_drop: false }`
[INFO] [stdout] 7ee3b5f5020cc2d9d018b7f81d1a300c9c46224e82c136f7cc48e42aa5bbb3fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 750ef160dc8cbcbfe3cbcfbdcc92375e345e71be6f73d85d04589cf3fce3cb20
[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" "750ef160dc8cbcbfe3cbcfbdcc92375e345e71be6f73d85d04589cf3fce3cb20", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/num256-5ced80e15419e6e2
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test uint256::into_array ... ok
[INFO] [stdout] test uint256::to_hex ... ok
[INFO] [stdout] test uint256::to_hex_with_padding ... ok
[INFO] [stdout] test uint256::check_display ... ok
[INFO] [stdout] test uint256::create_from_32_bytes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/num256_test-02bf0705a257a411
[INFO] [stdout] 
[INFO] [stdout] running 55 tests
[INFO] [stdout] test test_from_int ... ok
[INFO] [stdout] test test_increment_2_to_the_power_of_256_checked ... ok
[INFO] [stdout] test test_int_div_no_panic ... ok
[INFO] [stdout] test test_abs ... ok
[INFO] [stdout] test test_int_from_add_no_panic ... ok
[INFO] [stdout] test test_int256 ... ok
[INFO] [stdout] test test_int_from_div_no_panic ... ok
[INFO] [stdout] test test_increment_2_to_the_power_of_255 ... ok
[INFO] [stdout] test test_from_uint ... ok
[INFO] [stdout] test test_int_from_mul_no_panic ... ok
[INFO] [stdout] test test_int_from_sub_no_panic ... ok
[INFO] [stdout] test test_int_add_no_panic ... ok
[INFO] [stdout] test serialize ... ok
[INFO] [stdout] test test_biggest_unsigned_to_int ... ok
[INFO] [stdout] test serialize_from_hex ... ok
[INFO] [stdout] test test_int_to_uint ... ok
[INFO] [stdout] test test_negate ... ok
[INFO] [stdout] test test_uint256 ... ok
[INFO] [stdout] test test_int_mul_no_panic ... ok
[INFO] [stdout] test test_int_sub_no_panic ... ok
[INFO] [stdout] test test_uint_add_no_panic ... ok
[INFO] [stdout] test test_int_assign_sub_panic ... ok
[INFO] [stdout] test test_uint_add_assign_panic ... ok
[INFO] [stdout] test test_uint_div_no_panic ... ok
[INFO] [stdout] test test_int_from_div_panic ... ok
[INFO] [stdout] test test_int_from_add_panic ... ok
[INFO] [stdout] test test_uint_from_checked_div ... ok
[INFO] [stdout] test test_uint_from_add_no_panic ... ok
[INFO] [stdout] test test_uint_div_panic ... ok
[INFO] [stdout] test test_uint_from_div_assign_no_panic ... ok
[INFO] [stdout] test test_uint_from_div_no_panic ... ok
[INFO] [stdout] test test_uint_from_add_panic ... ok
[INFO] [stdout] test test_int_add_panic ... ok
[INFO] [stdout] test test_uint_from_sub_no_panic ... ok
[INFO] [stdout] test test_uint_from_mul_no_panic ... ok
[INFO] [stdout] test test_uint_from_mul_assign_panic ... ok
[INFO] [stdout] test test_int_from_sub_panic ... ok
[INFO] [stdout] test test_uint_from_sub_panic ... ok
[INFO] [stdout] test test_uint_mul_no_panic ... ok
[INFO] [stdout] test test_uint_sub_no_panic ... ok
[INFO] [stdout] test test_uint_sub_panic ... ok
[INFO] [stdout] test test_uint_underflow ... ok
[INFO] [stdout] test test_uint_to_int ... ok
[INFO] [stdout] test test_uint_to_int_panic ... ok
[INFO] [stdout] test test_uint_underflow_assign ... ok
[INFO] [stdout] test test_int_div_panic ... ok
[INFO] [stdout] test test_int_sub_panic ... ok
[INFO] [stdout] test test_int_mul_panic ... ok
[INFO] [stdout] test test_uint_add_panic ... ok
[INFO] [stdout] test test_int_from_mul_panic ... ok
[INFO] [stdout] test test_uint_from_div_panic ... ok
[INFO] [stdout] test test_uint_from_mul_panic ... ok
[INFO] [stdout] test test_increment_2_to_the_power_of_256 ... ok
[INFO] [stderr]    Doc-tests num256
[INFO] [stdout] test test_from_uint_to_int ... ok
[INFO] [stdout] test test_uint_mul_panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 55 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "750ef160dc8cbcbfe3cbcfbdcc92375e345e71be6f73d85d04589cf3fce3cb20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "750ef160dc8cbcbfe3cbcfbdcc92375e345e71be6f73d85d04589cf3fce3cb20", kill_on_drop: false }`
[INFO] [stdout] 750ef160dc8cbcbfe3cbcfbdcc92375e345e71be6f73d85d04589cf3fce3cb20