[INFO] fetching crate calc_engine 0.4.1...
[INFO] testing calc_engine-0.4.1 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate calc_engine 0.4.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate calc_engine 0.4.1
[INFO] finished tweaking crates.io crate calc_engine 0.4.1
[INFO] tweaked toml for crates.io crate calc_engine 0.4.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate calc_engine 0.4.1 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate calc_engine 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded auto_correct_n_suggest v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88fef9d2047c66bf34f7ceca386bf3461a9bd15775a35853e4aecb305ee3509f
[INFO] running `Command { std: "docker" "start" "-a" "88fef9d2047c66bf34f7ceca386bf3461a9bd15775a35853e4aecb305ee3509f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88fef9d2047c66bf34f7ceca386bf3461a9bd15775a35853e4aecb305ee3509f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88fef9d2047c66bf34f7ceca386bf3461a9bd15775a35853e4aecb305ee3509f", kill_on_drop: false }`
[INFO] [stdout] 88fef9d2047c66bf34f7ceca386bf3461a9bd15775a35853e4aecb305ee3509f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c87afde00b37a17371b3397609f53daf83b0a73da65a24246e6d703ae703a5f6
[INFO] running `Command { std: "docker" "start" "-a" "c87afde00b37a17371b3397609f53daf83b0a73da65a24246e6d703ae703a5f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling auto_correct_n_suggest v0.2.0
[INFO] [stderr]    Compiling calc_engine v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/scanner.rs:38:39
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn initialize(source: &'a str) -> Scanner {
[INFO] [stdout]    |                            --         ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                            |
[INFO] [stdout]    |                            the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn initialize(source: &'a str) -> Scanner<'a> {
[INFO] [stdout]    |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "c87afde00b37a17371b3397609f53daf83b0a73da65a24246e6d703ae703a5f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c87afde00b37a17371b3397609f53daf83b0a73da65a24246e6d703ae703a5f6", kill_on_drop: false }`
[INFO] [stdout] c87afde00b37a17371b3397609f53daf83b0a73da65a24246e6d703ae703a5f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0beca79d46ee965cc5738eb2535622bcbd150500c75258ca591a8bdf830477e8
[INFO] running `Command { std: "docker" "start" "-a" "0beca79d46ee965cc5738eb2535622bcbd150500c75258ca591a8bdf830477e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling calc_engine v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/scanner.rs:38:39
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn initialize(source: &'a str) -> Scanner {
[INFO] [stdout]    |                            --         ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                            |
[INFO] [stdout]    |                            the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn initialize(source: &'a str) -> Scanner<'a> {
[INFO] [stdout]    |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/scanner.rs:38:39
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn initialize(source: &'a str) -> Scanner {
[INFO] [stdout]    |                            --         ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                            |
[INFO] [stdout]    |                            the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn initialize(source: &'a str) -> Scanner<'a> {
[INFO] [stdout]    |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "0beca79d46ee965cc5738eb2535622bcbd150500c75258ca591a8bdf830477e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0beca79d46ee965cc5738eb2535622bcbd150500c75258ca591a8bdf830477e8", kill_on_drop: false }`
[INFO] [stdout] 0beca79d46ee965cc5738eb2535622bcbd150500c75258ca591a8bdf830477e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 968c0efeb7c9f568a3d09f22cfaf8179aee76470608d6f9aab98effb7d0f3491
[INFO] running `Command { std: "docker" "start" "-a" "968c0efeb7c9f568a3d09f22cfaf8179aee76470608d6f9aab98effb7d0f3491", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stderr]   --> src/scanner.rs:38:39
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn initialize(source: &'a str) -> Scanner {
[INFO] [stderr]    |                            --         ^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                            |
[INFO] [stderr]    |                            the lifetime is named here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn initialize(source: &'a str) -> Scanner<'a> {
[INFO] [stderr]    |                                              ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `calc_engine` (lib) generated 1 warning (run `cargo fix --lib -p calc_engine` to apply 1 suggestion)
[INFO] [stderr] warning: `calc_engine` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/calc_engine-6cda13f4ddda6004)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test parser::tests::test_can_parse_addition_expression ... ok
[INFO] [stdout] test parser::tests::test_can_parse_subtraction_expression ... ok
[INFO] [stdout] test parser::tests::test_detect_error_from_unclosed_grouped_expression ... ok
[INFO] [stdout] test scanner::tests::test_can_scan_addition_expression ... ok
[INFO] [stdout] test scanner::tests::test_can_scan_with_keywords ... ok
[INFO] [stdout] test scanner::tests::test_scanner_can_auto_suggest_keyword ... ok
[INFO] [stdout] test tests::it_should_calculate_complex_math ... ok
[INFO] [stdout] test parser::tests::test_can_parse_grouped_expression ... ok
[INFO] [stdout] test scanner::tests::test_scanner_can_recognize_auto_capitalized_keywords ... ok
[INFO] [stdout] test tests::it_should_calculate_simple_addition ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests calc_engine
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "968c0efeb7c9f568a3d09f22cfaf8179aee76470608d6f9aab98effb7d0f3491", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "968c0efeb7c9f568a3d09f22cfaf8179aee76470608d6f9aab98effb7d0f3491", kill_on_drop: false }`
[INFO] [stdout] 968c0efeb7c9f568a3d09f22cfaf8179aee76470608d6f9aab98effb7d0f3491
