[INFO] crate range-split 0.2.0 is already in cache
[INFO] testing range-split-0.2.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate range-split 0.2.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate range-split 0.2.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate range-split 0.2.0
[INFO] finished tweaking crates.io crate range-split 0.2.0
[INFO] tweaked toml for crates.io crate range-split 0.2.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a4ab32040281f75ca9e5497d29718297462f3a616508682bae9e5cf30228c0c
[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" "0a4ab32040281f75ca9e5497d29718297462f3a616508682bae9e5cf30228c0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a4ab32040281f75ca9e5497d29718297462f3a616508682bae9e5cf30228c0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a4ab32040281f75ca9e5497d29718297462f3a616508682bae9e5cf30228c0c", kill_on_drop: false }`
[INFO] [stdout] 0a4ab32040281f75ca9e5497d29718297462f3a616508682bae9e5cf30228c0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14b4a4a31f0718b651a1284943665dbac7bd0994aeff8aac47f9bb0952c2c00b
[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" "14b4a4a31f0718b651a1284943665dbac7bd0994aeff8aac47f9bb0952c2c00b", kill_on_drop: false }`
[INFO] [stderr]    Compiling range-split v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `bytes::Bytes::split_off` that must be used
[INFO] [stdout]   --> src/bytes.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |             self.split_off(range.start);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: consider Bytes::truncate if you don't need the other half
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "14b4a4a31f0718b651a1284943665dbac7bd0994aeff8aac47f9bb0952c2c00b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14b4a4a31f0718b651a1284943665dbac7bd0994aeff8aac47f9bb0952c2c00b", kill_on_drop: false }`
[INFO] [stdout] 14b4a4a31f0718b651a1284943665dbac7bd0994aeff8aac47f9bb0952c2c00b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 423975ad9f44aec453cca50cf14b74c26d5f655dcea213c665caaa5345c28fac
[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" "423975ad9f44aec453cca50cf14b74c26d5f655dcea213c665caaa5345c28fac", kill_on_drop: false }`
[INFO] [stderr]    Compiling range-split v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `bytes::Bytes::split_off` that must be used
[INFO] [stdout]   --> src/bytes.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |             self.split_off(range.start);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: consider Bytes::truncate if you don't need the other half
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `bytes::Bytes::split_off` that must be used
[INFO] [stdout]   --> src/bytes.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |             self.split_off(range.start);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: consider Bytes::truncate if you don't need the other half
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "423975ad9f44aec453cca50cf14b74c26d5f655dcea213c665caaa5345c28fac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "423975ad9f44aec453cca50cf14b74c26d5f655dcea213c665caaa5345c28fac", kill_on_drop: false }`
[INFO] [stdout] 423975ad9f44aec453cca50cf14b74c26d5f655dcea213c665caaa5345c28fac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 026ffe0a83bd94441b2671347b89abc0a9400c9af15b86d6a7022b3c203c9f6c
[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" "026ffe0a83bd94441b2671347b89abc0a9400c9af15b86d6a7022b3c203c9f6c", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `bytes::Bytes::split_off` that must be used
[INFO] [stderr]   --> src/bytes.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |             self.split_off(range.start);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: consider Bytes::truncate if you don't need the other half
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `bytes::Bytes::split_off` that must be used
[INFO] [stderr]   --> src/bytes.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |             self.split_off(range.start);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: consider Bytes::truncate if you don't need the other half
[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-faa8c31040397954
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/assert_str_range-bcece9279b1014bd
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests range-split
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[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/lib.rs - (line 24) ... 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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "026ffe0a83bd94441b2671347b89abc0a9400c9af15b86d6a7022b3c203c9f6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "026ffe0a83bd94441b2671347b89abc0a9400c9af15b86d6a7022b3c203c9f6c", kill_on_drop: false }`
[INFO] [stdout] 026ffe0a83bd94441b2671347b89abc0a9400c9af15b86d6a7022b3c203c9f6c