[INFO] fetching crate levenshtein-diff 0.2.1...
[INFO] testing levenshtein-diff-0.2.1 against 1.54.0 for beta-1.55-1
[INFO] extracting crate levenshtein-diff 0.2.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate levenshtein-diff 0.2.1 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate levenshtein-diff 0.2.1
[INFO] finished tweaking crates.io crate levenshtein-diff 0.2.1
[INFO] tweaked toml for crates.io crate levenshtein-diff 0.2.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 12a39e4a028ae5df234b3728ed9731297964d587ded1644558af0cc2c16bcefd
[INFO] running `Command { std: "docker" "start" "-a" "12a39e4a028ae5df234b3728ed9731297964d587ded1644558af0cc2c16bcefd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12a39e4a028ae5df234b3728ed9731297964d587ded1644558af0cc2c16bcefd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12a39e4a028ae5df234b3728ed9731297964d587ded1644558af0cc2c16bcefd", kill_on_drop: false }`
[INFO] [stdout] 12a39e4a028ae5df234b3728ed9731297964d587ded1644558af0cc2c16bcefd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5477f5db3fe47ed166f622c8b2be4837c1f180f5bf7d0367bd8aa1a227b7355f
[INFO] running `Command { std: "docker" "start" "-a" "5477f5db3fe47ed166f622c8b2be4837c1f180f5bf7d0367bd8aa1a227b7355f", kill_on_drop: false }`
[INFO] [stderr]    Compiling levenshtein-diff v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.16s
[INFO] running `Command { std: "docker" "inspect" "5477f5db3fe47ed166f622c8b2be4837c1f180f5bf7d0367bd8aa1a227b7355f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5477f5db3fe47ed166f622c8b2be4837c1f180f5bf7d0367bd8aa1a227b7355f", kill_on_drop: false }`
[INFO] [stdout] 5477f5db3fe47ed166f622c8b2be4837c1f180f5bf7d0367bd8aa1a227b7355f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e0e99c434b1082387fe0d7fa4d4df17f193cb3de8131e2a8f1ba8cfd5d0f3ed5
[INFO] running `Command { std: "docker" "start" "-a" "e0e99c434b1082387fe0d7fa4d4df17f193cb3de8131e2a8f1ba8cfd5d0f3ed5", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling levenshtein-diff v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/integration_test.rs:20:38
[INFO] [stdout]    |
[INFO] [stdout] 20 |         .unwrap_or_else(|err| panic!(err));
[INFO] [stdout]    |                                      ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 20 |         .unwrap_or_else(|err| panic!("{}", err));
[INFO] [stdout]    |                                      ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 20 |         .unwrap_or_else(|err| std::panic::panic_any(err));
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.31s
[INFO] running `Command { std: "docker" "inspect" "e0e99c434b1082387fe0d7fa4d4df17f193cb3de8131e2a8f1ba8cfd5d0f3ed5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0e99c434b1082387fe0d7fa4d4df17f193cb3de8131e2a8f1ba8cfd5d0f3ed5", kill_on_drop: false }`
[INFO] [stdout] e0e99c434b1082387fe0d7fa4d4df17f193cb3de8131e2a8f1ba8cfd5d0f3ed5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 034b489df9a4c659101838b801fd4fce2ade787a311036dcbb84f55ae0f68935
[INFO] running `Command { std: "docker" "start" "-a" "034b489df9a4c659101838b801fd4fce2ade787a311036dcbb84f55ae0f68935", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/integration_test.rs:20:38
[INFO] [stderr]    |
[INFO] [stderr] 20 |         .unwrap_or_else(|err| panic!(err));
[INFO] [stderr]    |                                      ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]    |
[INFO] [stderr] 20 |         .unwrap_or_else(|err| panic!("{}", err));
[INFO] [stderr]    |                                      ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]    |
[INFO] [stderr] 20 |         .unwrap_or_else(|err| std::panic::panic_any(err));
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/levenshtein_diff-37f7ebb5508603f9)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test distance::tests::levenshtein_memoization_test ... ok
[INFO] [stdout] test distance::tests::levenshtein_naive_test ... ok
[INFO] [stdout] test distance::tests::levenshtein_tabulation_test ... ok
[INFO] [stdout] test edit::tests::edit_list_is_correct ... ok
[INFO] [stdout] test edit::tests::edits_are_applied_correctly ... ok
[INFO] [stdout] test tests::default_distance_test ... ok
[INFO] [stderr]      Running tests/integration_test.rs (/opt/rustwide/target/debug/deps/integration_test-d25165eaf6212225)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests levenshtein-diff
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_regeneration_of_target ... ok
[INFO] [stdout] test test_strings_have_same_distances ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/distance.rs - distance::levenshtein_naive (line 19) ... ok
[INFO] [stdout] test src/distance.rs - distance::levenshtein_tabulation (line 61) ... ok
[INFO] [stdout] test src/edit.rs - edit::generate_edits (line 110) ... ok
[INFO] [stdout] test src/distance.rs - distance::levenshtein_memoization (line 109) ... ok
[INFO] [stdout] test src/lib.rs - distance (line 18) ... ok
[INFO] [stdout] test src/edit.rs - edit::apply_edits (line 45) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.66s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "034b489df9a4c659101838b801fd4fce2ade787a311036dcbb84f55ae0f68935", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "034b489df9a4c659101838b801fd4fce2ade787a311036dcbb84f55ae0f68935", kill_on_drop: false }`
[INFO] [stdout] 034b489df9a4c659101838b801fd4fce2ade787a311036dcbb84f55ae0f68935
