[INFO] fetching crate max-subarray-sum 0.1.7...
[INFO] testing max-subarray-sum-0.1.7 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate max-subarray-sum 0.1.7 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate max-subarray-sum 0.1.7 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate max-subarray-sum 0.1.7
[INFO] finished tweaking crates.io crate max-subarray-sum 0.1.7
[INFO] tweaked toml for crates.io crate max-subarray-sum 0.1.7 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 810b0ec75544bb57b64f718bbb74e4f524f72aac06e47541669d1e9f2e1e3b73
[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" "810b0ec75544bb57b64f718bbb74e4f524f72aac06e47541669d1e9f2e1e3b73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "810b0ec75544bb57b64f718bbb74e4f524f72aac06e47541669d1e9f2e1e3b73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "810b0ec75544bb57b64f718bbb74e4f524f72aac06e47541669d1e9f2e1e3b73", kill_on_drop: false }`
[INFO] [stdout] 810b0ec75544bb57b64f718bbb74e4f524f72aac06e47541669d1e9f2e1e3b73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "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] dfb75d52e610ec4efd4ec0e8c8a94aad2257c311dc63cafafc1415c194b204cd
[INFO] running `Command { std: "docker" "start" "-a" "dfb75d52e610ec4efd4ec0e8c8a94aad2257c311dc63cafafc1415c194b204cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling max-subarray-sum v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "dfb75d52e610ec4efd4ec0e8c8a94aad2257c311dc63cafafc1415c194b204cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfb75d52e610ec4efd4ec0e8c8a94aad2257c311dc63cafafc1415c194b204cd", kill_on_drop: false }`
[INFO] [stdout] dfb75d52e610ec4efd4ec0e8c8a94aad2257c311dc63cafafc1415c194b204cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2516d3ae837d3b952f2fe922f1ce1a97a08e5ed8d684ce8821683972b301ff1
[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" "a2516d3ae837d3b952f2fe922f1ce1a97a08e5ed8d684ce8821683972b301ff1", kill_on_drop: false }`
[INFO] [stderr]    Compiling max-subarray-sum v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "a2516d3ae837d3b952f2fe922f1ce1a97a08e5ed8d684ce8821683972b301ff1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2516d3ae837d3b952f2fe922f1ce1a97a08e5ed8d684ce8821683972b301ff1", kill_on_drop: false }`
[INFO] [stdout] a2516d3ae837d3b952f2fe922f1ce1a97a08e5ed8d684ce8821683972b301ff1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", 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] 10458a28404b73bfbb6a374cea8ebc70c0891384454923ac5275600c43c37051
[INFO] running `Command { std: "docker" "start" "-a" "10458a28404b73bfbb6a374cea8ebc70c0891384454923ac5275600c43c37051", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/max_subarray_sum-c2eded88c8d1418c)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/integration_test.rs (/opt/rustwide/target/debug/deps/integration_test-05365ec95d3fa83c)
[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 8 tests
[INFO] [stdout] test tests::all_negative ... ok
[INFO] [stdout] test tests::all_positive ... ok
[INFO] [stdout] test tests::identical_positive ... ok
[INFO] [stdout] test tests::mixed_2 ... ok
[INFO] [stdout] test tests::mixed_3 ... ok
[INFO] [stdout] test tests::mixed_1 ... ok
[INFO] [stdout] test tests::identical_negative ... ok
[INFO] [stderr]    Doc-tests max-subarray-sum
[INFO] [stdout] test tests::all_zero ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 11) ... FAILED
[INFO] [stdout] test src/interface.rs - interface::Elements::result (line 49) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 11) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `max_subarray_sum::Elements`
[INFO] [stdout]  --> src/lib.rs:12:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use max_subarray_sum::Elements;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ no `Elements` in the root
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 11)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.54s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "10458a28404b73bfbb6a374cea8ebc70c0891384454923ac5275600c43c37051", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10458a28404b73bfbb6a374cea8ebc70c0891384454923ac5275600c43c37051", kill_on_drop: false }`
[INFO] [stdout] 10458a28404b73bfbb6a374cea8ebc70c0891384454923ac5275600c43c37051