[INFO] fetching crate range-split 0.3.0...
[INFO] testing range-split-0.3.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate range-split 0.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate range-split 0.3.0 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 range-split 0.3.0
[INFO] finished tweaking crates.io crate range-split 0.3.0
[INFO] tweaked toml for crates.io crate range-split 0.3.0 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: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] c6893e2ee2d1a9d0dda24422741466834b08e359b68c664dc2110d956f5579f4
[INFO] running `Command { std: "docker" "start" "-a" "c6893e2ee2d1a9d0dda24422741466834b08e359b68c664dc2110d956f5579f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6893e2ee2d1a9d0dda24422741466834b08e359b68c664dc2110d956f5579f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6893e2ee2d1a9d0dda24422741466834b08e359b68c664dc2110d956f5579f4", kill_on_drop: false }`
[INFO] [stdout] c6893e2ee2d1a9d0dda24422741466834b08e359b68c664dc2110d956f5579f4
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 017696ae1795cf3d668ed31f387267b6be21adedf1bf98cff889be0583603298
[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" "017696ae1795cf3d668ed31f387267b6be21adedf1bf98cff889be0583603298", kill_on_drop: false }`
[INFO] [stderr]    Compiling bytes v0.6.0
[INFO] [stderr]    Compiling range-split v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: attribute should be applied to a function
[INFO] [stdout]    --> src/str.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 112 |         #[cold]
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 113 |         Err(OutOfBuffer)
[INFO] [stdout]     |         ---------------- not a function
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.76s
[INFO] running `Command { std: "docker" "inspect" "017696ae1795cf3d668ed31f387267b6be21adedf1bf98cff889be0583603298", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "017696ae1795cf3d668ed31f387267b6be21adedf1bf98cff889be0583603298", kill_on_drop: false }`
[INFO] [stdout] 017696ae1795cf3d668ed31f387267b6be21adedf1bf98cff889be0583603298
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] 701339532a99344dcaf997921cdc026affef8e408c914d7e61f05597a7688115
[INFO] running `Command { std: "docker" "start" "-a" "701339532a99344dcaf997921cdc026affef8e408c914d7e61f05597a7688115", kill_on_drop: false }`
[INFO] [stderr]    Compiling range-split v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: attribute should be applied to a function
[INFO] [stdout]    --> src/str.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 112 |         #[cold]
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 113 |         Err(OutOfBuffer)
[INFO] [stdout]     |         ---------------- not a function
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: attribute should be applied to a function
[INFO] [stdout]    --> src/str.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 112 |         #[cold]
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 113 |         Err(OutOfBuffer)
[INFO] [stdout]     |         ---------------- not a function
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `Command { std: "docker" "inspect" "701339532a99344dcaf997921cdc026affef8e408c914d7e61f05597a7688115", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "701339532a99344dcaf997921cdc026affef8e408c914d7e61f05597a7688115", kill_on_drop: false }`
[INFO] [stdout] 701339532a99344dcaf997921cdc026affef8e408c914d7e61f05597a7688115
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cbffdabc93e978eaaa0f114b58d4d81de1cf4cb6c5544c13439337b354f1ed69
[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" "cbffdabc93e978eaaa0f114b58d4d81de1cf4cb6c5544c13439337b354f1ed69", kill_on_drop: false }`
[INFO] [stderr] warning: attribute should be applied to a function
[INFO] [stderr]    --> src/str.rs:112:9
[INFO] [stderr]     |
[INFO] [stderr] 112 |         #[cold]
[INFO] [stderr]     |         ^^^^^^^
[INFO] [stderr] 113 |         Err(OutOfBuffer)
[INFO] [stderr]     |         ---------------- not a function
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: attribute should be applied to a function
[INFO] [stderr]    --> src/str.rs:112:9
[INFO] [stderr]     |
[INFO] [stderr] 112 |         #[cold]
[INFO] [stderr]     |         ^^^^^^^
[INFO] [stderr] 113 |         Err(OutOfBuffer)
[INFO] [stderr]     |         ---------------- not a function
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/range_split-9bc2d939ed7116c5
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/assert_str_range-2ef95726e7a57a89
[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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test assert_str_range_borrows ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests range-split
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 24) ... ok
[INFO] [stdout] test src/lib.rs - (line 6) ... ok
[INFO] [stdout] test src/str.rs - assert_str_range (line 17) ... ok
[INFO] [stdout] test src/str.rs - assert_str_range (line 28) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cbffdabc93e978eaaa0f114b58d4d81de1cf4cb6c5544c13439337b354f1ed69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbffdabc93e978eaaa0f114b58d4d81de1cf4cb6c5544c13439337b354f1ed69", kill_on_drop: false }`
[INFO] [stdout] cbffdabc93e978eaaa0f114b58d4d81de1cf4cb6c5544c13439337b354f1ed69