[INFO] fetching crate names-changer 0.2.1...
[INFO] testing names-changer-0.2.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate names-changer 0.2.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate names-changer 0.2.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate names-changer 0.2.1
[INFO] finished tweaking crates.io crate names-changer 0.2.1
[INFO] tweaked toml for crates.io crate names-changer 0.2.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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" "+1.55.0" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c44d85f530446f065e8d1e8ad2d47dfb5edfb649a14b821a5ee9d266bfd65f3c
[INFO] running `Command { std: "docker" "start" "-a" "c44d85f530446f065e8d1e8ad2d47dfb5edfb649a14b821a5ee9d266bfd65f3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c44d85f530446f065e8d1e8ad2d47dfb5edfb649a14b821a5ee9d266bfd65f3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c44d85f530446f065e8d1e8ad2d47dfb5edfb649a14b821a5ee9d266bfd65f3c", kill_on_drop: false }`
[INFO] [stdout] c44d85f530446f065e8d1e8ad2d47dfb5edfb649a14b821a5ee9d266bfd65f3c
[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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf0929ae4013dfbf5be69a36c123b5794903b9900ae0b62c4cf4fc675880c7de
[INFO] running `Command { std: "docker" "start" "-a" "cf0929ae4013dfbf5be69a36c123b5794903b9900ae0b62c4cf4fc675880c7de", kill_on_drop: false }`
[INFO] [stderr]    Compiling names-changer v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `change_word` is never read
[INFO] [stdout]   --> src/names_changer.rs:37:21
[INFO] [stdout]    |
[INFO] [stdout] 37 |             let mut change_word = String::new();
[INFO] [stdout]    |                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "cf0929ae4013dfbf5be69a36c123b5794903b9900ae0b62c4cf4fc675880c7de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf0929ae4013dfbf5be69a36c123b5794903b9900ae0b62c4cf4fc675880c7de", kill_on_drop: false }`
[INFO] [stdout] cf0929ae4013dfbf5be69a36c123b5794903b9900ae0b62c4cf4fc675880c7de
[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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e753da15e8722345ac1694d2d09a71c49f11bbef205a298b50dc09305bb72cb
[INFO] running `Command { std: "docker" "start" "-a" "5e753da15e8722345ac1694d2d09a71c49f11bbef205a298b50dc09305bb72cb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling names-changer v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `change_word` is never read
[INFO] [stdout]   --> src/names_changer.rs:37:21
[INFO] [stdout]    |
[INFO] [stdout] 37 |             let mut change_word = String::new();
[INFO] [stdout]    |                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `change_word` is never read
[INFO] [stdout]   --> src/names_changer.rs:37:21
[INFO] [stdout]    |
[INFO] [stdout] 37 |             let mut change_word = String::new();
[INFO] [stdout]    |                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `Command { std: "docker" "inspect" "5e753da15e8722345ac1694d2d09a71c49f11bbef205a298b50dc09305bb72cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e753da15e8722345ac1694d2d09a71c49f11bbef205a298b50dc09305bb72cb", kill_on_drop: false }`
[INFO] [stdout] 5e753da15e8722345ac1694d2d09a71c49f11bbef205a298b50dc09305bb72cb
[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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 57e7c00c6e6c95c59a19c82a1abdaede35103f6a6882bd4b92081b6a4d6b743e
[INFO] running `Command { std: "docker" "start" "-a" "57e7c00c6e6c95c59a19c82a1abdaede35103f6a6882bd4b92081b6a4d6b743e", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `change_word` is never read
[INFO] [stderr]   --> src/names_changer.rs:37:21
[INFO] [stderr]    |
[INFO] [stderr] 37 |             let mut change_word = String::new();
[INFO] [stderr]    |                     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: `names-changer` (lib) generated 1 warning
[INFO] [stderr] warning: `names-changer` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/names_changer-ffc7a96637840204)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test names_changer::mod_tests::check_new_words_of_word ... ok
[INFO] [stderr]      Running tests/module.rs (/opt/rustwide/target/debug/deps/module-ac0647dbe794a4c4)
[INFO] [stdout] test names_changer::mod_tests::check_more_words ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.24s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 32 tests
[INFO] [stdout] test tests::check_small_word ... ok
[INFO] [stdout] test tests::check_change_word_with_abbreviation ... ok
[INFO] [stdout] test tests::check_change_word_with_to ... ok
[INFO] [stdout] test tests::test14 ... ok
[INFO] [stdout] test tests::test10 ... ok
[INFO] [stdout] test tests::check_classic_camel_word_change ... ok
[INFO] [stdout] test tests::test12 ... ok
[INFO] [stdout] test tests::test16 ... ok
[INFO] [stdout] test tests::test1 ... ok
[INFO] [stdout] test tests::test11 ... ok
[INFO] [stdout] test tests::test13 ... ok
[INFO] [stdout] test tests::test17 ... ok
[INFO] [stdout] test tests::test19 ... ok
[INFO] [stdout] test tests::test18 ... ok
[INFO] [stdout] test tests::test23 ... ok
[INFO] [stdout] test tests::test20 ... ok
[INFO] [stdout] test tests::test24 ... ok
[INFO] [stdout] test tests::test21 ... ok
[INFO] [stdout] test tests::test22 ... ok
[INFO] [stdout] test tests::test5 ... ok
[INFO] [stdout] test tests::test4 ... ok
[INFO] [stdout] test tests::test25 ... ok
[INFO] [stdout] test tests::test6 ... ok
[INFO] [stdout] test tests::test2 ... ok
[INFO] [stdout] test tests::test8 ... ok
[INFO] [stdout] test tests::test7 ... ok
[INFO] [stdout] test tests::test9 ... ok
[INFO] [stdout] test tests::check_change_words_in_word ... ok
[INFO] [stdout] test tests::test3 ... ok
[INFO] [stdout] test tests::check_change_word_with_abbreviation_and_to ... ok
[INFO] [stdout] test tests::check_change_word_with_abbreviation_and_other_chars ... ok
[INFO] [stdout] test tests::check_change_full_data ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 32 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.28s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests names-changer
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 28) ... ok
[INFO] [stdout] test src/lib.rs - (line 22) ... ok
[INFO] [stdout] test src/names_changer.rs - names_changer::NamesChanger::camel_to_snake (line 11) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.62s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "57e7c00c6e6c95c59a19c82a1abdaede35103f6a6882bd4b92081b6a4d6b743e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57e7c00c6e6c95c59a19c82a1abdaede35103f6a6882bd4b92081b6a4d6b743e", kill_on_drop: false }`
[INFO] [stdout] 57e7c00c6e6c95c59a19c82a1abdaede35103f6a6882bd4b92081b6a4d6b743e