Nov 28 00:12:23.245 INFO checking mrozycki/rust-fst against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 00:12:23.245 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-0/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +db42d4dad33013eba11ef37342ad9f614e5652b8-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 28 00:12:23.476 INFO [stdout] b26a8a8be5075502d5a6b1a29f0ec1dfa6e6b6b9afb5416157df6f607b1ff5ae
Nov 28 00:12:23.479 INFO running `"docker" "start" "-a" "b26a8a8be5075502d5a6b1a29f0ec1dfa6e6b6b9afb5416157df6f607b1ff5ae"`
Nov 28 00:12:24.002 INFO [stderr] usermod: no changes
Nov 28 00:12:24.029 INFO [stderr]     Checking rust-fst v0.1.0 (/source)
Nov 28 00:12:24.276 INFO [stderr] warning: method is never used: `empty`
Nov 28 00:12:24.276 INFO [stderr]   --> src/fst.rs:36:5
Nov 28 00:12:24.276 INFO [stderr]    |
Nov 28 00:12:24.276 INFO [stderr] 36 |     pub fn empty() -> Self {
Nov 28 00:12:24.276 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:12:24.276 INFO [stderr]    |
Nov 28 00:12:24.276 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 00:12:24.276 INFO [stderr] 
Nov 28 00:12:24.276 INFO [stderr] warning: method is never used: `string`
Nov 28 00:12:24.276 INFO [stderr]   --> src/fst.rs:60:5
Nov 28 00:12:24.276 INFO [stderr]    |
Nov 28 00:12:24.276 INFO [stderr] 60 |     pub fn string(s: &str) -> Self {
Nov 28 00:12:24.276 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:12:24.276 INFO [stderr] 
Nov 28 00:12:24.276 INFO [stderr] warning: method is never used: `and`
Nov 28 00:12:24.276 INFO [stderr]   --> src/fst.rs:83:5
Nov 28 00:12:24.276 INFO [stderr]    |
Nov 28 00:12:24.276 INFO [stderr] 83 |     pub fn and(m1: Self, m2: Self) -> Self {
Nov 28 00:12:24.276 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:12:24.276 INFO [stderr] 
Nov 28 00:12:24.276 INFO [stderr] warning: method is never used: `and_optionally`
Nov 28 00:12:24.276 INFO [stderr]   --> src/fst.rs:97:5
Nov 28 00:12:24.276 INFO [stderr]    |
Nov 28 00:12:24.276 INFO [stderr] 97 |     pub fn and_optionally(m1: Self, m2: Self) -> Self {
Nov 28 00:12:24.276 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:12:24.276 INFO [stderr] 
Nov 28 00:12:24.276 INFO [stderr] warning: method is never used: `repeated`
Nov 28 00:12:24.276 INFO [stderr]    --> src/fst.rs:159:5
Nov 28 00:12:24.276 INFO [stderr]     |
Nov 28 00:12:24.276 INFO [stderr] 159 |     pub fn repeated(mut m: Self) -> Self {
Nov 28 00:12:24.276 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:12:24.276 INFO [stderr] 
Nov 28 00:12:24.287 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:12:24.287 INFO [stderr]    --> src/fst.rs:217:9
Nov 28 00:12:24.287 INFO [stderr]     |
Nov 28 00:12:24.287 INFO [stderr] 217 |         writeln!(f, "{} {}", self.state_count, self.transitions.len());
Nov 28 00:12:24.287 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:12:24.287 INFO [stderr]     |
Nov 28 00:12:24.287 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 28 00:12:24.287 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:12:24.287 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 28 00:12:24.287 INFO [stderr] 
Nov 28 00:12:24.287 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:12:24.287 INFO [stderr]    --> src/fst.rs:219:13
Nov 28 00:12:24.287 INFO [stderr]     |
Nov 28 00:12:24.287 INFO [stderr] 219 |             writeln!(f, "{}\t{}\t{}\t{}", t.from, t.to, t.on.unwrap_or('`'), t.with.unwrap_or_default());
Nov 28 00:12:24.287 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:12:24.287 INFO [stderr]     |
Nov 28 00:12:24.287 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:12:24.287 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 28 00:12:24.287 INFO [stderr] 
Nov 28 00:12:24.287 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:12:24.287 INFO [stderr]    --> src/fst.rs:223:13
Nov 28 00:12:24.287 INFO [stderr]     |
Nov 28 00:12:24.287 INFO [stderr] 223 |             write!(f, "{} ", state);
Nov 28 00:12:24.287 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:12:24.287 INFO [stderr]     |
Nov 28 00:12:24.287 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:12:24.287 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 28 00:12:24.287 INFO [stderr] 
Nov 28 00:12:24.353 INFO [stderr] warning: method is never used: `empty`
Nov 28 00:12:24.353 INFO [stderr]   --> src/fst.rs:36:5
Nov 28 00:12:24.353 INFO [stderr]    |
Nov 28 00:12:24.353 INFO [stderr] 36 |     pub fn empty() -> Self {
Nov 28 00:12:24.353 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:12:24.353 INFO [stderr]    |
Nov 28 00:12:24.353 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 00:12:24.353 INFO [stderr] 
Nov 28 00:12:24.353 INFO [stderr] warning: method is never used: `string`
Nov 28 00:12:24.353 INFO [stderr]   --> src/fst.rs:60:5
Nov 28 00:12:24.353 INFO [stderr]    |
Nov 28 00:12:24.353 INFO [stderr] 60 |     pub fn string(s: &str) -> Self {
Nov 28 00:12:24.353 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:12:24.353 INFO [stderr] 
Nov 28 00:12:24.353 INFO [stderr] warning: method is never used: `and`
Nov 28 00:12:24.353 INFO [stderr]   --> src/fst.rs:83:5
Nov 28 00:12:24.353 INFO [stderr]    |
Nov 28 00:12:24.353 INFO [stderr] 83 |     pub fn and(m1: Self, m2: Self) -> Self {
Nov 28 00:12:24.353 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:12:24.353 INFO [stderr] 
Nov 28 00:12:24.353 INFO [stderr] warning: method is never used: `and_optionally`
Nov 28 00:12:24.353 INFO [stderr]   --> src/fst.rs:97:5
Nov 28 00:12:24.353 INFO [stderr]    |
Nov 28 00:12:24.353 INFO [stderr] 97 |     pub fn and_optionally(m1: Self, m2: Self) -> Self {
Nov 28 00:12:24.353 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:12:24.353 INFO [stderr] 
Nov 28 00:12:24.353 INFO [stderr] warning: method is never used: `repeated`
Nov 28 00:12:24.353 INFO [stderr]    --> src/fst.rs:159:5
Nov 28 00:12:24.353 INFO [stderr]     |
Nov 28 00:12:24.353 INFO [stderr] 159 |     pub fn repeated(mut m: Self) -> Self {
Nov 28 00:12:24.353 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:12:24.353 INFO [stderr] 
Nov 28 00:12:24.353 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:12:24.353 INFO [stderr]    --> src/fst.rs:217:9
Nov 28 00:12:24.353 INFO [stderr]     |
Nov 28 00:12:24.353 INFO [stderr] 217 |         writeln!(f, "{} {}", self.state_count, self.transitions.len());
Nov 28 00:12:24.353 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:12:24.353 INFO [stderr]     |
Nov 28 00:12:24.354 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 28 00:12:24.354 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:12:24.354 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 28 00:12:24.354 INFO [stderr] 
Nov 28 00:12:24.354 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:12:24.354 INFO [stderr]    --> src/fst.rs:219:13
Nov 28 00:12:24.354 INFO [stderr]     |
Nov 28 00:12:24.354 INFO [stderr] 219 |             writeln!(f, "{}\t{}\t{}\t{}", t.from, t.to, t.on.unwrap_or('`'), t.with.unwrap_or_default());
Nov 28 00:12:24.354 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:12:24.354 INFO [stderr]     |
Nov 28 00:12:24.354 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:12:24.354 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 28 00:12:24.354 INFO [stderr] 
Nov 28 00:12:24.354 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:12:24.354 INFO [stderr]    --> src/fst.rs:223:13
Nov 28 00:12:24.354 INFO [stderr]     |
Nov 28 00:12:24.354 INFO [stderr] 223 |             write!(f, "{} ", state);
Nov 28 00:12:24.354 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:12:24.354 INFO [stderr]     |
Nov 28 00:12:24.354 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:12:24.354 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 28 00:12:24.354 INFO [stderr] 
Nov 28 00:12:24.371 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
Nov 28 00:12:24.373 INFO [stderr] su: No module specific data is present
Nov 28 00:12:24.616 INFO running `"docker" "inspect" "b26a8a8be5075502d5a6b1a29f0ec1dfa6e6b6b9afb5416157df6f607b1ff5ae"`
Nov 28 00:12:24.742 INFO running `"docker" "rm" "-f" "b26a8a8be5075502d5a6b1a29f0ec1dfa6e6b6b9afb5416157df6f607b1ff5ae"`
Nov 28 00:12:24.862 INFO [stdout] b26a8a8be5075502d5a6b1a29f0ec1dfa6e6b6b9afb5416157df6f607b1ff5ae