[INFO] fetching crate num_x 0.2.2...
[INFO] testing num_x-0.2.2 against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[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 eafdee2dfae8c2233b74f98b123308be7ccefcc6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "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" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa1af05556be86ea02fb6515ec52d3d7cdf26cba576a0d3ffd50282a19b40580
[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" "fa1af05556be86ea02fb6515ec52d3d7cdf26cba576a0d3ffd50282a19b40580", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa1af05556be86ea02fb6515ec52d3d7cdf26cba576a0d3ffd50282a19b40580", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa1af05556be86ea02fb6515ec52d3d7cdf26cba576a0d3ffd50282a19b40580", kill_on_drop: false }`
[INFO] [stdout] fa1af05556be86ea02fb6515ec52d3d7cdf26cba576a0d3ffd50282a19b40580
[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=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 646c70a9d63d94bc926dfb54c14052d3d189e701a552bf4a8a1aa2dc484aa11f
[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" "646c70a9d63d94bc926dfb54c14052d3d189e701a552bf4a8a1aa2dc484aa11f", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling num_x v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.80s
[INFO] running `Command { std: "docker" "inspect" "646c70a9d63d94bc926dfb54c14052d3d189e701a552bf4a8a1aa2dc484aa11f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "646c70a9d63d94bc926dfb54c14052d3d189e701a552bf4a8a1aa2dc484aa11f", kill_on_drop: false }`
[INFO] [stdout] 646c70a9d63d94bc926dfb54c14052d3d189e701a552bf4a8a1aa2dc484aa11f
[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=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ab63279b69cc4da7c7120efb3cb5be4e7bbc75d430eb7e02ec093018cad9a8d
[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" "4ab63279b69cc4da7c7120efb3cb5be4e7bbc75d430eb7e02ec093018cad9a8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling num_x v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 16.40s
[INFO] running `Command { std: "docker" "inspect" "4ab63279b69cc4da7c7120efb3cb5be4e7bbc75d430eb7e02ec093018cad9a8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ab63279b69cc4da7c7120efb3cb5be4e7bbc75d430eb7e02ec093018cad9a8d", kill_on_drop: false }`
[INFO] [stdout] 4ab63279b69cc4da7c7120efb3cb5be4e7bbc75d430eb7e02ec093018cad9a8d
[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=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 55422c351c49c744d6f446eb903ae2ec896601a2376208d32ab5b8c85c47b27f
[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" "55422c351c49c744d6f446eb903ae2ec896601a2376208d32ab5b8c85c47b27f", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 26 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/num_x-4e6d4e6b2aa4971a
[INFO] [stdout] test tests::min_max_values ... ok
[INFO] [stdout] test tests::test_bitxor ... ok
[INFO] [stdout] test tests::test_bitor_assign ... ok
[INFO] [stdout] test tests::test_bitxor_assign ... ok
[INFO] [stdout] test tests::test_masking ... ok
[INFO] [stdout] test tests::test_bitor ... ok
[INFO] [stdout] test tests::test_bitand_assign ... ok
[INFO] [stdout] test tests::test_shl ... ok
[INFO] [stdout] test tests::test_not ... ok
[INFO] [stdout] test tests::test_sub ... ok
[INFO] [stdout] test tests::test_shr_assign ... ok
[INFO] [stdout] test conversion::tests::test_conversion_signed ... ok
[INFO] [stdout] test tests::test_wrapping_add ... ok
[INFO] [stdout] test tests::test_shl_assign ... ok
[INFO] [stdout] test tests::test_shr ... ok
[INFO] [stdout] test tests::test_add ... ok
[INFO] [stdout] test conversion::tests::test_conversion_unsigned ... ok
[INFO] [stdout] test tests::test_bitand ... ok
[INFO] [stdout] test tests::test_add_underflow_i96 ... ok
[INFO] [stdout] test tests::test_add_underflow_i17 ... ok
[INFO] [stdout] test tests::test_add_overflow_u127 ... ok
[INFO] [stdout] test tests::test_sub_overflow_i23 ... ok
[INFO] [stdout] test tests::test_add_overflow_i96 ... ok
[INFO] [stdout] test tests::test_sub_underflow_i5 ... ok
[INFO] [stdout] test tests::test_add_overflow_u5 ... ok
[INFO] [stderr]    Doc-tests num_x
[INFO] [stdout] test tests::test_sub_underflow_u5 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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="default"' --cfg 'feature="std"' --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-4c6be1962c556cf0.rlib --extern num_x=/opt/rustwide/target/debug/deps/libnum_x-4d8d2684c814ace0.rlib -C embed-bitcode=no` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "55422c351c49c744d6f446eb903ae2ec896601a2376208d32ab5b8c85c47b27f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55422c351c49c744d6f446eb903ae2ec896601a2376208d32ab5b8c85c47b27f", kill_on_drop: false }`
[INFO] [stdout] 55422c351c49c744d6f446eb903ae2ec896601a2376208d32ab5b8c85c47b27f