[INFO] fetching crate num_x 0.2.2...
[INFO] testing num_x-0.2.2 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate num_x 0.2.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate num_x 0.2.2 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 num_x 0.2.2
[INFO] finished tweaking crates.io crate num_x 0.2.2
[INFO] tweaked toml for crates.io crate num_x 0.2.2 written to /workspace/builds/worker-0/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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2021-01-01" "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] 3aa7fa44cf5bf83a68cf638ee412796a70e4f18ea1fd1ca7f5387293207b8c5b
[INFO] running `Command { std: "docker" "start" "-a" "3aa7fa44cf5bf83a68cf638ee412796a70e4f18ea1fd1ca7f5387293207b8c5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3aa7fa44cf5bf83a68cf638ee412796a70e4f18ea1fd1ca7f5387293207b8c5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3aa7fa44cf5bf83a68cf638ee412796a70e4f18ea1fd1ca7f5387293207b8c5b", kill_on_drop: false }`
[INFO] [stdout] 3aa7fa44cf5bf83a68cf638ee412796a70e4f18ea1fd1ca7f5387293207b8c5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91fbbe434c46a0271bd007645680fb4f8c529e6bd5793b80bf969906ae2e7f0d
[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" "91fbbe434c46a0271bd007645680fb4f8c529e6bd5793b80bf969906ae2e7f0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling num_x v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.23s
[INFO] running `Command { std: "docker" "inspect" "91fbbe434c46a0271bd007645680fb4f8c529e6bd5793b80bf969906ae2e7f0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91fbbe434c46a0271bd007645680fb4f8c529e6bd5793b80bf969906ae2e7f0d", kill_on_drop: false }`
[INFO] [stdout] 91fbbe434c46a0271bd007645680fb4f8c529e6bd5793b80bf969906ae2e7f0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b3365a5279f7b8f1fb90212ab6489f946f81542b32ba0e1808eb1ea68b0f8b6
[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" "3b3365a5279f7b8f1fb90212ab6489f946f81542b32ba0e1808eb1ea68b0f8b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling num_x v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 15.79s
[INFO] running `Command { std: "docker" "inspect" "3b3365a5279f7b8f1fb90212ab6489f946f81542b32ba0e1808eb1ea68b0f8b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b3365a5279f7b8f1fb90212ab6489f946f81542b32ba0e1808eb1ea68b0f8b6", kill_on_drop: false }`
[INFO] [stdout] 3b3365a5279f7b8f1fb90212ab6489f946f81542b32ba0e1808eb1ea68b0f8b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] facade661fa33c22359b9f30c059690db0a08442c207ce6805ed4ccf8d0249b3
[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" "facade661fa33c22359b9f30c059690db0a08442c207ce6805ed4ccf8d0249b3", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/num_x-c0bfd5ae106685c1
[INFO] [stdout] 
[INFO] [stdout] running 26 tests
[INFO] [stdout] test tests::test_bitor ... ok
[INFO] [stdout] test tests::test_bitand_assign ... ok
[INFO] [stdout] test tests::test_bitand ... ok
[INFO] [stdout] test tests::test_not ... ok
[INFO] [stdout] test tests::test_shl ... ok
[INFO] [stdout] test tests::test_bitor_assign ... ok
[INFO] [stdout] test tests::min_max_values ... ok
[INFO] [stdout] test tests::test_bitxor ... ok
[INFO] [stdout] test conversion::tests::test_conversion_unsigned ... ok
[INFO] [stdout] test tests::test_shr_assign ... ok
[INFO] [stdout] test tests::test_masking ... ok
[INFO] [stdout] test tests::test_shr ... ok
[INFO] [stdout] test tests::test_sub ... ok
[INFO] [stdout] test conversion::tests::test_conversion_signed ... ok
[INFO] [stdout] test tests::test_shl_assign ... ok
[INFO] [stdout] test tests::test_wrapping_add ... ok
[INFO] [stdout] test tests::test_add ... ok
[INFO] [stdout] test tests::test_bitxor_assign ... ok
[INFO] [stdout] test tests::test_add_overflow_i96 ... ok
[INFO] [stdout] test tests::test_add_underflow_i96 ... ok
[INFO] [stdout] test tests::test_add_underflow_i17 ... ok
[INFO] [stdout] test tests::test_sub_underflow_i5 ... ok
[INFO] [stdout] test tests::test_sub_underflow_u5 ... ok
[INFO] [stdout] test tests::test_sub_overflow_i23 ... ok
[INFO] [stdout] test tests::test_add_overflow_u5 ... ok
[INFO] [stderr]    Doc-tests num_x
[INFO] [stdout] test tests::test_add_overflow_u127 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 738 tests
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --test /opt/rustwide/workdir/src/lib.rs --crate-name num_x -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cfg 'feature="std"' --cfg 'feature="default"' --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-3bb9a546b52233f2.rlib --extern num_x=/opt/rustwide/target/debug/deps/libnum_x-37c6b73b404c24f3.rlib -C embed-bitcode=no` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "facade661fa33c22359b9f30c059690db0a08442c207ce6805ed4ccf8d0249b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "facade661fa33c22359b9f30c059690db0a08442c207ce6805ed4ccf8d0249b3", kill_on_drop: false }`
[INFO] [stdout] facade661fa33c22359b9f30c059690db0a08442c207ce6805ed4ccf8d0249b3