[INFO] fetching crate levenshtein-diff 0.2.2...
[INFO] testing levenshtein-diff-0.2.2 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate levenshtein-diff 0.2.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate levenshtein-diff 0.2.2 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate levenshtein-diff 0.2.2
[INFO] finished tweaking crates.io crate levenshtein-diff 0.2.2
[INFO] tweaked toml for crates.io crate levenshtein-diff 0.2.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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] 41f98adfba2af823f650974771d4e470a22cedb91a263d026d8e6fa78947ec73
[INFO] running `Command { std: "docker" "start" "-a" "41f98adfba2af823f650974771d4e470a22cedb91a263d026d8e6fa78947ec73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41f98adfba2af823f650974771d4e470a22cedb91a263d026d8e6fa78947ec73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41f98adfba2af823f650974771d4e470a22cedb91a263d026d8e6fa78947ec73", kill_on_drop: false }`
[INFO] [stdout] 41f98adfba2af823f650974771d4e470a22cedb91a263d026d8e6fa78947ec73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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] 5e94c9a3870e4be04aa47391185d5d453e5ef87abc6fc8612e191d23d7f8586b
[INFO] running `Command { std: "docker" "start" "-a" "5e94c9a3870e4be04aa47391185d5d453e5ef87abc6fc8612e191d23d7f8586b", kill_on_drop: false }`
[INFO] [stderr]    Compiling levenshtein-diff v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "5e94c9a3870e4be04aa47391185d5d453e5ef87abc6fc8612e191d23d7f8586b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e94c9a3870e4be04aa47391185d5d453e5ef87abc6fc8612e191d23d7f8586b", kill_on_drop: false }`
[INFO] [stdout] 5e94c9a3870e4be04aa47391185d5d453e5ef87abc6fc8612e191d23d7f8586b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7b4812e9717f6079e5d4fa9a6f77a54f0785e129c0a7cdfe0ff800e7512d4c7
[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" "e7b4812e9717f6079e5d4fa9a6f77a54f0785e129c0a7cdfe0ff800e7512d4c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[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 v0.2.2 (/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_panics)]` on by default
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 5.97s
[INFO] running `Command { std: "docker" "inspect" "e7b4812e9717f6079e5d4fa9a6f77a54f0785e129c0a7cdfe0ff800e7512d4c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7b4812e9717f6079e5d4fa9a6f77a54f0785e129c0a7cdfe0ff800e7512d4c7", kill_on_drop: false }`
[INFO] [stdout] e7b4812e9717f6079e5d4fa9a6f77a54f0785e129c0a7cdfe0ff800e7512d4c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 22b32a6d7079088fb1c18836b7d390dbb6a06e23ab2d20b1fb70921974ba8f84
[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" "22b32a6d7079088fb1c18836b7d390dbb6a06e23ab2d20b1fb70921974ba8f84", kill_on_drop: false }`
[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_panics)]` on by default
[INFO] [stderr]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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: `levenshtein-diff` (test "integration_test") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/levenshtein_diff-cb15f7e8efaf9306)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test distance::tests::levenshtein_tabulation_test ... ok
[INFO] [stdout] test edit::tests::edits_are_applied_correctly ... ok
[INFO] [stdout] test distance::tests::levenshtein_naive_test ... ok
[INFO] [stdout] test distance::tests::levenshtein_memoization_test ... ok
[INFO] [stdout] test edit::tests::edit_list_is_correct ... ok
[INFO] [stderr]      Running tests/integration_test.rs (/opt/rustwide/target/debug/deps/integration_test-6751839e09515eb3)
[INFO] [stdout] test tests::default_distance_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_regeneration_of_target ... ok
[INFO] [stderr]    Doc-tests levenshtein-diff
[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 0.15s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[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/distance.rs - distance::levenshtein_tabulation (line 61) ... ok
[INFO] [stdout] test src/distance.rs - distance::levenshtein_naive (line 19) ... ok
[INFO] [stdout] test src/edit.rs - edit::generate_edits (line 110) ... 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 1.94s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "22b32a6d7079088fb1c18836b7d390dbb6a06e23ab2d20b1fb70921974ba8f84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22b32a6d7079088fb1c18836b7d390dbb6a06e23ab2d20b1fb70921974ba8f84", kill_on_drop: false }`
[INFO] [stdout] 22b32a6d7079088fb1c18836b7d390dbb6a06e23ab2d20b1fb70921974ba8f84