[INFO] fetching crate librualg 0.2.0...
[INFO] testing librualg-0.2.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate librualg 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate librualg 0.2.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate librualg 0.2.0
[INFO] finished tweaking crates.io crate librualg 0.2.0
[INFO] tweaked toml for crates.io crate librualg 0.2.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 16e5fe5e8c6ed1ea9fba93bce2520aaad5a6c173a928b61afcdeacfd8957fbad
[INFO] running `Command { std: "docker" "start" "-a" "16e5fe5e8c6ed1ea9fba93bce2520aaad5a6c173a928b61afcdeacfd8957fbad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16e5fe5e8c6ed1ea9fba93bce2520aaad5a6c173a928b61afcdeacfd8957fbad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16e5fe5e8c6ed1ea9fba93bce2520aaad5a6c173a928b61afcdeacfd8957fbad", kill_on_drop: false }`
[INFO] [stdout] 16e5fe5e8c6ed1ea9fba93bce2520aaad5a6c173a928b61afcdeacfd8957fbad
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c751146b349f2a4f7a9c1c0c7a3060a4d1d37f31c6aaafdb5e03194a88b2481e
[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" "c751146b349f2a4f7a9c1c0c7a3060a4d1d37f31c6aaafdb5e03194a88b2481e", kill_on_drop: false }`
[INFO] [stderr]    Compiling librualg v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "c751146b349f2a4f7a9c1c0c7a3060a4d1d37f31c6aaafdb5e03194a88b2481e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c751146b349f2a4f7a9c1c0c7a3060a4d1d37f31c6aaafdb5e03194a88b2481e", kill_on_drop: false }`
[INFO] [stdout] c751146b349f2a4f7a9c1c0c7a3060a4d1d37f31c6aaafdb5e03194a88b2481e
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb2cfe8e92a1219ca165693715f17d084146219fdffcdf2f6fcbe0d69e08c105
[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" "eb2cfe8e92a1219ca165693715f17d084146219fdffcdf2f6fcbe0d69e08c105", kill_on_drop: false }`
[INFO] [stderr]    Compiling librualg v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::time::Instant`
[INFO] [stdout]  --> tests/binary_search.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::time::Instant;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Instant`
[INFO] [stdout]  --> tests/string.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::time::Instant;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "eb2cfe8e92a1219ca165693715f17d084146219fdffcdf2f6fcbe0d69e08c105", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb2cfe8e92a1219ca165693715f17d084146219fdffcdf2f6fcbe0d69e08c105", kill_on_drop: false }`
[INFO] [stdout] eb2cfe8e92a1219ca165693715f17d084146219fdffcdf2f6fcbe0d69e08c105
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 52f12f758752d0b5d341ec2e70665e37a9dc78c5260eb9e2a47a6d81d4c290c1
[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" "52f12f758752d0b5d341ec2e70665e37a9dc78c5260eb9e2a47a6d81d4c290c1", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::time::Instant`
[INFO] [stderr]  --> tests/string.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::time::Instant;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Instant`
[INFO] [stderr]  --> tests/binary_search.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::time::Instant;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/librualg-fbfb0e3ad2e8aecc
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test binary_search::test_upper_bound ... ok
[INFO] [stdout] test binary_search::test_empty_container ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/binary_search-7ced7796fcef7450
[INFO] [stdout] test string::test_prefix_function ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/string-c82caefcb4df7f0a
[INFO] [stdout] test binary_search::test_lower_bound ... ok
[INFO] [stderr]    Doc-tests librualg
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test binary_search ... 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 2 tests
[INFO] [stdout] test kmp ... ok
[INFO] [stdout] test kmp_first ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/string/mod.rs - string::kmp_first (line 32) ... ok
[INFO] [stdout] test src/string/mod.rs - string::kmp (line 3) ... ok
[INFO] [stdout] test src/binary_search/mod.rs - binary_search::upper_bound (line 37) ... ok
[INFO] [stdout] test src/binary_search/mod.rs - binary_search::lower_bound (line 4) ... 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" "52f12f758752d0b5d341ec2e70665e37a9dc78c5260eb9e2a47a6d81d4c290c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52f12f758752d0b5d341ec2e70665e37a9dc78c5260eb9e2a47a6d81d4c290c1", kill_on_drop: false }`
[INFO] [stdout] 52f12f758752d0b5d341ec2e70665e37a9dc78c5260eb9e2a47a6d81d4c290c1