[INFO] fetching crate cliff 0.3.2...
[INFO] testing cliff-0.3.2 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate cliff 0.3.2 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate cliff 0.3.2 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cliff 0.3.2
[INFO] finished tweaking crates.io crate cliff 0.3.2
[INFO] tweaked toml for crates.io crate cliff 0.3.2 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "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] 17a41ff69c3a6e0dc88ccb74fc8d5ed6c23d4d33261109a55dff5b48b114a70e
[INFO] running `Command { std: "docker" "start" "-a" "17a41ff69c3a6e0dc88ccb74fc8d5ed6c23d4d33261109a55dff5b48b114a70e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17a41ff69c3a6e0dc88ccb74fc8d5ed6c23d4d33261109a55dff5b48b114a70e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17a41ff69c3a6e0dc88ccb74fc8d5ed6c23d4d33261109a55dff5b48b114a70e", kill_on_drop: false }`
[INFO] [stdout] 17a41ff69c3a6e0dc88ccb74fc8d5ed6c23d4d33261109a55dff5b48b114a70e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9d98f22d3a5f600d009968edba5e809e7e8f2f6ffa50c28bd1e4b1f032d7900
[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" "f9d98f22d3a5f600d009968edba5e809e7e8f2f6ffa50c28bd1e4b1f032d7900", kill_on_drop: false }`
[INFO] [stderr]    Compiling cliff v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `start`
[INFO] [stdout]  --> src/exponential.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     start: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `ExponentialCliffSearcher` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/exponential.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Debug, Clone)]
[INFO] [stdout]   |          ^^^^^  ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `Command { std: "docker" "inspect" "f9d98f22d3a5f600d009968edba5e809e7e8f2f6ffa50c28bd1e4b1f032d7900", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9d98f22d3a5f600d009968edba5e809e7e8f2f6ffa50c28bd1e4b1f032d7900", kill_on_drop: false }`
[INFO] [stdout] f9d98f22d3a5f600d009968edba5e809e7e8f2f6ffa50c28bd1e4b1f032d7900
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00108eb97a2ef4cd3192f91a8af89f377c8043361af302b657568e4e8402fe43
[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" "00108eb97a2ef4cd3192f91a8af89f377c8043361af302b657568e4e8402fe43", kill_on_drop: false }`
[INFO] [stdout] warning: field is never read: `start`
[INFO] [stdout]  --> src/exponential.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     start: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `ExponentialCliffSearcher` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/exponential.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Debug, Clone)]
[INFO] [stdout]   |          ^^^^^  ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cliff v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `start`
[INFO] [stdout]  --> src/exponential.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     start: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `ExponentialCliffSearcher` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/exponential.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Debug, Clone)]
[INFO] [stdout]   |          ^^^^^  ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "00108eb97a2ef4cd3192f91a8af89f377c8043361af302b657568e4e8402fe43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00108eb97a2ef4cd3192f91a8af89f377c8043361af302b657568e4e8402fe43", kill_on_drop: false }`
[INFO] [stdout] 00108eb97a2ef4cd3192f91a8af89f377c8043361af302b657568e4e8402fe43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c21abf94057e6787574681abe7832fc7e30e95c71a01017bce88fa0f9afb4afc
[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" "c21abf94057e6787574681abe7832fc7e30e95c71a01017bce88fa0f9afb4afc", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: field is never read: `start`
[INFO] [stdout] running 10 tests
[INFO] [stderr]  --> src/exponential.rs:9:5
[INFO] [stdout] test binmin::search_from_until ... ok
[INFO] [stderr]   |
[INFO] [stdout] test exponential::immediate ... ok
[INFO] [stderr] 9 |     start: usize,
[INFO] [stdout] test exponential::search_from ... ok
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stdout] test exponential::through_trait ... ok
[INFO] [stderr]   |
[INFO] [stdout] test exponential::fill_search ... ok
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] test linear::linear_fail ... ok
[INFO] [stderr] note: `ExponentialCliffSearcher` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]  --> src/exponential.rs:6:10
[INFO] [stderr]   |
[INFO] [stderr] 6 | #[derive(Debug, Clone)]
[INFO] [stderr]   |          ^^^^^  ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `cliff` (lib) generated 1 warning
[INFO] [stderr] warning: `cliff` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cliff-a8375f420e1b8900)
[INFO] [stdout] test linear::linear_nofail ... ok
[INFO] [stderr]    Doc-tests cliff
[INFO] [stdout] test exponential::search_from_until ... ok
[INFO] [stdout] test binmin::through_trait ... ok
[INFO] [stdout] test binmin::immediate ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 30) ... ok
[INFO] [stdout] test src/binmin.rs - binmin::BinaryMinSearcher (line 5) ... ok
[INFO] [stdout] test src/lib.rs - (line 48) ... ok
[INFO] [stdout] test src/lib.rs - (line 84) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.29s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c21abf94057e6787574681abe7832fc7e30e95c71a01017bce88fa0f9afb4afc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c21abf94057e6787574681abe7832fc7e30e95c71a01017bce88fa0f9afb4afc", kill_on_drop: false }`
[INFO] [stdout] c21abf94057e6787574681abe7832fc7e30e95c71a01017bce88fa0f9afb4afc