[INFO] fetching crate elias-fano 1.1.0...
[INFO] testing elias-fano-1.1.0 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate elias-fano 1.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate elias-fano 1.1.0 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate elias-fano 1.1.0
[INFO] finished tweaking crates.io crate elias-fano 1.1.0
[INFO] tweaked toml for crates.io crate elias-fano 1.1.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c05321ae7d9bfed1124785f19b4018e308d27c68323cbf538598059b97af822
[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" "7c05321ae7d9bfed1124785f19b4018e308d27c68323cbf538598059b97af822", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c05321ae7d9bfed1124785f19b4018e308d27c68323cbf538598059b97af822", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c05321ae7d9bfed1124785f19b4018e308d27c68323cbf538598059b97af822", kill_on_drop: false }`
[INFO] [stdout] 7c05321ae7d9bfed1124785f19b4018e308d27c68323cbf538598059b97af822
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--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] 48720ee0bfdc231d7a89a3c0d6eb3d80b81e28013d25fafba9a5f568fa70de77
[INFO] running `Command { std: "docker" "start" "-a" "48720ee0bfdc231d7a89a3c0d6eb3d80b81e28013d25fafba9a5f568fa70de77", kill_on_drop: false }`
[INFO] [stderr]    Compiling elias-fano v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "48720ee0bfdc231d7a89a3c0d6eb3d80b81e28013d25fafba9a5f568fa70de77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48720ee0bfdc231d7a89a3c0d6eb3d80b81e28013d25fafba9a5f568fa70de77", kill_on_drop: false }`
[INFO] [stdout] 48720ee0bfdc231d7a89a3c0d6eb3d80b81e28013d25fafba9a5f568fa70de77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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] 24a105595ce6e8fbedce694d693c510f878e030a400415cb0923e9ad84d5af8f
[INFO] running `Command { std: "docker" "start" "-a" "24a105595ce6e8fbedce694d693c510f878e030a400415cb0923e9ad84d5af8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling elias-fano v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tests/lib.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     ef.skip(500);
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tests/lib.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     ef.skip(350);
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "24a105595ce6e8fbedce694d693c510f878e030a400415cb0923e9ad84d5af8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24a105595ce6e8fbedce694d693c510f878e030a400415cb0923e9ad84d5af8f", kill_on_drop: false }`
[INFO] [stdout] 24a105595ce6e8fbedce694d693c510f878e030a400415cb0923e9ad84d5af8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fa0c83679bf569bf391b80348e833695c071070adb6f66e0996d5577e3efd4c7
[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" "fa0c83679bf569bf391b80348e833695c071070adb6f66e0996d5577e3efd4c7", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stdout] running 1 test
[INFO] [stderr]   --> tests/lib.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 |     ef.skip(500);
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> tests/lib.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     ef.skip(350);
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/elias_fano-5cbee069de89be63)
[INFO] [stdout] test utils::tests::test_msb ... ok
[INFO] [stderr]      Running tests/lib.rs (/opt/rustwide/target/debug/deps/lib-6352a4b7bdbfd2ed)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test test_generic ... ok
[INFO] [stdout] test test_reset ... ok
[INFO] [stdout] test test_skip ... ok
[INFO] [stdout] test test_position ... ok
[INFO] [stdout] test test_membership ... ok
[INFO] [stdout] test test_move ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.21s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests elias-fano
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fa0c83679bf569bf391b80348e833695c071070adb6f66e0996d5577e3efd4c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa0c83679bf569bf391b80348e833695c071070adb6f66e0996d5577e3efd4c7", kill_on_drop: false }`
[INFO] [stdout] fa0c83679bf569bf391b80348e833695c071070adb6f66e0996d5577e3efd4c7