[INFO] fetching crate whetstone 1.0.0...
[INFO] testing whetstone-1.0.0 against 1.99.0-beta.8 for beta-1.100-2
[INFO] extracting crate whetstone 1.0.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate whetstone 1.0.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate whetstone 1.0.0
[INFO] tweaked toml for crates.io crate whetstone 1.0.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate whetstone 1.0.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate whetstone 1.0.0 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" "+1.99.0-beta.8" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_with_macros v1.5.2
[INFO] [stderr]   Downloaded serde_with v1.14.0
[INFO] [stderr]   Downloaded darling_macro v0.13.4
[INFO] [stderr]   Downloaded darling v0.13.4
[INFO] [stderr]   Downloaded autocfg v1.4.0
[INFO] [stderr]   Downloaded darling_core v0.13.4
[INFO] [stderr]   Downloaded proc-macro2 v1.0.94
[INFO] [stderr]   Downloaded serde_json v1.0.140
[INFO] [stderr]   Downloaded syn v2.0.100
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 76e9eda7046e2e442e515ab3d65f9e065905a053b3818c6f1d2f2ec3bf0d50a4
[INFO] running `Command { std: "docker" "start" "76e9eda7046e2e442e515ab3d65f9e065905a053b3818c6f1d2f2ec3bf0d50a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76e9eda7046e2e442e515ab3d65f9e065905a053b3818c6f1d2f2ec3bf0d50a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "76e9eda7046e2e442e515ab3d65f9e065905a053b3818c6f1d2f2ec3bf0d50a4" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76e9eda7046e2e442e515ab3d65f9e065905a053b3818c6f1d2f2ec3bf0d50a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "76e9eda7046e2e442e515ab3d65f9e065905a053b3818c6f1d2f2ec3bf0d50a4" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling ryu v1.0.20
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling darling_macro v0.13.4
[INFO] [stderr]    Compiling darling v0.13.4
[INFO] [stderr]    Compiling serde_with_macros v1.5.2
[INFO] [stderr]    Compiling serde_with v1.14.0
[INFO] [stderr]    Compiling whetstone v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/equation.rs:66:21
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn variable(&self, label: &str) -> Result<RefMut<T>, Error> {
[INFO] [stdout]    |                     ^^^^^                         ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     the lifetime is elided 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: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn variable(&self, label: &str) -> Result<RefMut<'_, T>, Error> {
[INFO] [stdout]    |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.19s
[INFO] running `Command { std: "docker" "inspect" "76e9eda7046e2e442e515ab3d65f9e065905a053b3818c6f1d2f2ec3bf0d50a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "76e9eda7046e2e442e515ab3d65f9e065905a053b3818c6f1d2f2ec3bf0d50a4" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling whetstone v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/equation.rs:66:21
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn variable(&self, label: &str) -> Result<RefMut<T>, Error> {
[INFO] [stdout]    |                     ^^^^^                         ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     the lifetime is elided 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: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn variable(&self, label: &str) -> Result<RefMut<'_, T>, Error> {
[INFO] [stdout]    |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/equation.rs:66:21
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn variable(&self, label: &str) -> Result<RefMut<T>, Error> {
[INFO] [stdout]    |                     ^^^^^                         ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     the lifetime is elided 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: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn variable(&self, label: &str) -> Result<RefMut<'_, T>, Error> {
[INFO] [stdout]    |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `Command { std: "docker" "inspect" "76e9eda7046e2e442e515ab3d65f9e065905a053b3818c6f1d2f2ec3bf0d50a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "76e9eda7046e2e442e515ab3d65f9e065905a053b3818c6f1d2f2ec3bf0d50a4" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/equation.rs:66:21
[INFO] [stderr]    |
[INFO] [stderr] 66 |     pub fn variable(&self, label: &str) -> Result<RefMut<T>, Error> {
[INFO] [stderr]    |                     ^^^^^                         ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     the lifetime is elided 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: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 66 |     pub fn variable(&self, label: &str) -> Result<RefMut<'_, T>, Error> {
[INFO] [stderr]    |                                                          +++
[INFO] [stderr] 
[INFO] [stderr] warning: `whetstone` (lib) generated 1 warning (run `cargo fix --lib -p whetstone` to apply 1 suggestion)
[INFO] [stderr] warning: `whetstone` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/whetstone-2c8eb8eac1e0b969)
[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] [stderr]      Running src/test.rs (/opt/rustwide/target/debug/deps/whetstone_test-e40b2b5dac985ad0)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::test_new_syntax ... ok
[INFO] [stdout] test tests::test_add_bindings ... ok
[INFO] [stdout] test tests::test_modify_syntax ... ok
[INFO] [stdout] test tests::test_bad_syntax ... ok
[INFO] [stdout] test tests::test_bracket_matching ... ok
[INFO] [stdout] test tests::test_standard_syntax ... ok
[INFO] [stdout] test tests::test_order_of_operations ... ok
[INFO] [stdout] test tests::test_latex_syntax ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.26s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests whetstone
[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" "76e9eda7046e2e442e515ab3d65f9e065905a053b3818c6f1d2f2ec3bf0d50a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76e9eda7046e2e442e515ab3d65f9e065905a053b3818c6f1d2f2ec3bf0d50a4", kill_on_drop: false }`
[INFO] [stdout] 76e9eda7046e2e442e515ab3d65f9e065905a053b3818c6f1d2f2ec3bf0d50a4
