[INFO] fetching crate base-x 0.2.8...
[INFO] testing base-x-0.2.8 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate base-x 0.2.8 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate base-x 0.2.8 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 base-x 0.2.8
[INFO] finished tweaking crates.io crate base-x 0.2.8
[INFO] tweaked toml for crates.io crate base-x 0.2.8 written to /workspace/builds/worker-4/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-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b0c3cb1706e09443b1297058b7737d95b8d41fc6db99b9009a54b721ce298f8
[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" "8b0c3cb1706e09443b1297058b7737d95b8d41fc6db99b9009a54b721ce298f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b0c3cb1706e09443b1297058b7737d95b8d41fc6db99b9009a54b721ce298f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b0c3cb1706e09443b1297058b7737d95b8d41fc6db99b9009a54b721ce298f8", kill_on_drop: false }`
[INFO] [stdout] 8b0c3cb1706e09443b1297058b7737d95b8d41fc6db99b9009a54b721ce298f8
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92183c47a87d0775e47104ac383d7a3d72a5151622a26debdd507b584ad90288
[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" "92183c47a87d0775e47104ac383d7a3d72a5151622a26debdd507b584ad90288", kill_on_drop: false }`
[INFO] [stderr]    Compiling base-x v0.2.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "92183c47a87d0775e47104ac383d7a3d72a5151622a26debdd507b584ad90288", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92183c47a87d0775e47104ac383d7a3d72a5151622a26debdd507b584ad90288", kill_on_drop: false }`
[INFO] [stdout] 92183c47a87d0775e47104ac383d7a3d72a5151622a26debdd507b584ad90288
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c3d970e96d7b3e0d9a8b42b126d21bdf3063c206bf8c8e3e298abaae600e87e
[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" "9c3d970e96d7b3e0d9a8b42b126d21bdf3063c206bf8c8e3e298abaae600e87e", kill_on_drop: false }`
[INFO] [stderr]    Compiling json v0.11.15
[INFO] [stderr]    Compiling bencher v0.1.5
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling base-x v0.2.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.24s
[INFO] running `Command { std: "docker" "inspect" "9c3d970e96d7b3e0d9a8b42b126d21bdf3063c206bf8c8e3e298abaae600e87e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c3d970e96d7b3e0d9a8b42b126d21bdf3063c206bf8c8e3e298abaae600e87e", kill_on_drop: false }`
[INFO] [stdout] 9c3d970e96d7b3e0d9a8b42b126d21bdf3063c206bf8c8e3e298abaae600e87e
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 90f298b6985ef6f53f3bbd2cfe12bf655898835d0c1f101c738abd4cba61fe31
[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" "90f298b6985ef6f53f3bbd2cfe12bf655898835d0c1f101c738abd4cba61fe31", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/base_x-e2eebb1d7f809dad
[INFO] [stdout] running 5 tests
[INFO] [stdout] test bigint::tests::big_uint_rem_div ... ok
[INFO] [stdout] test bigint::tests::big_uint_from_bytes ... ok
[INFO] [stdout] test test::is_unicode_sound ... ok
[INFO] [stdout] test bigint::tests::big_uint_add_mul ... ok
[INFO] [stdout] test test::works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests base-x
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 16) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.85s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "90f298b6985ef6f53f3bbd2cfe12bf655898835d0c1f101c738abd4cba61fe31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90f298b6985ef6f53f3bbd2cfe12bf655898835d0c1f101c738abd4cba61fe31", kill_on_drop: false }`
[INFO] [stdout] 90f298b6985ef6f53f3bbd2cfe12bf655898835d0c1f101c738abd4cba61fe31