Dec 13 09:52:40.261 INFO testing mrozycki/rust-fst against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 13 09:52:40.261 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt build --frozen" "-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"`
Dec 13 09:52:40.559 INFO [stdout] be2e36a805aa5f33daea5c202b546e3077bf36192abf8f8f9d2a7a02cb378614
Dec 13 09:52:40.564 INFO running `"docker" "start" "-a" "be2e36a805aa5f33daea5c202b546e3077bf36192abf8f8f9d2a7a02cb378614"`
Dec 13 09:52:40.954 INFO [stderr] usermod: no changes
Dec 13 09:52:40.981 INFO [stderr]    Compiling rust-fst v0.1.0 (/source)
Dec 13 09:52:41.294 INFO [stderr] warning: method is never used: `empty`
Dec 13 09:52:41.295 INFO [stderr]   --> src/fst.rs:36:5
Dec 13 09:52:41.295 INFO [stderr]    |
Dec 13 09:52:41.295 INFO [stderr] 36 |     pub fn empty() -> Self {
Dec 13 09:52:41.295 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:52:41.295 INFO [stderr]    |
Dec 13 09:52:41.295 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 13 09:52:41.295 INFO [stderr] 
Dec 13 09:52:41.295 INFO [stderr] warning: method is never used: `string`
Dec 13 09:52:41.295 INFO [stderr]   --> src/fst.rs:60:5
Dec 13 09:52:41.295 INFO [stderr]    |
Dec 13 09:52:41.295 INFO [stderr] 60 |     pub fn string(s: &str) -> Self {
Dec 13 09:52:41.295 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:52:41.295 INFO [stderr] 
Dec 13 09:52:41.295 INFO [stderr] warning: method is never used: `and`
Dec 13 09:52:41.295 INFO [stderr]   --> src/fst.rs:83:5
Dec 13 09:52:41.295 INFO [stderr]    |
Dec 13 09:52:41.295 INFO [stderr] 83 |     pub fn and(m1: Self, m2: Self) -> Self {
Dec 13 09:52:41.295 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:52:41.295 INFO [stderr] 
Dec 13 09:52:41.295 INFO [stderr] warning: method is never used: `and_optionally`
Dec 13 09:52:41.295 INFO [stderr]   --> src/fst.rs:97:5
Dec 13 09:52:41.295 INFO [stderr]    |
Dec 13 09:52:41.295 INFO [stderr] 97 |     pub fn and_optionally(m1: Self, m2: Self) -> Self {
Dec 13 09:52:41.295 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:52:41.295 INFO [stderr] 
Dec 13 09:52:41.295 INFO [stderr] warning: method is never used: `repeated`
Dec 13 09:52:41.295 INFO [stderr]    --> src/fst.rs:159:5
Dec 13 09:52:41.295 INFO [stderr]     |
Dec 13 09:52:41.295 INFO [stderr] 159 |     pub fn repeated(mut m: Self) -> Self {
Dec 13 09:52:41.295 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:52:41.295 INFO [stderr] 
Dec 13 09:52:41.295 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 09:52:41.295 INFO [stderr]    --> src/fst.rs:217:9
Dec 13 09:52:41.295 INFO [stderr]     |
Dec 13 09:52:41.295 INFO [stderr] 217 |         writeln!(f, "{} {}", self.state_count, self.transitions.len());
Dec 13 09:52:41.295 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:52:41.295 INFO [stderr]     |
Dec 13 09:52:41.295 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 13 09:52:41.295 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 09:52:41.295 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)
Dec 13 09:52:41.295 INFO [stderr] 
Dec 13 09:52:41.295 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 09:52:41.295 INFO [stderr]    --> src/fst.rs:219:13
Dec 13 09:52:41.295 INFO [stderr]     |
Dec 13 09:52:41.295 INFO [stderr] 219 |             writeln!(f, "{}\t{}\t{}\t{}", t.from, t.to, t.on.unwrap_or('`'), t.with.unwrap_or_default());
Dec 13 09:52:41.295 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:52:41.295 INFO [stderr]     |
Dec 13 09:52:41.295 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 09:52:41.295 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)
Dec 13 09:52:41.295 INFO [stderr] 
Dec 13 09:52:41.295 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 09:52:41.295 INFO [stderr]    --> src/fst.rs:223:13
Dec 13 09:52:41.295 INFO [stderr]     |
Dec 13 09:52:41.295 INFO [stderr] 223 |             write!(f, "{} ", state);
Dec 13 09:52:41.295 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:52:41.295 INFO [stderr]     |
Dec 13 09:52:41.295 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 09:52:41.295 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)
Dec 13 09:52:41.295 INFO [stderr] 
Dec 13 09:52:42.132 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
Dec 13 09:52:42.134 INFO [stderr] su: No module specific data is present
Dec 13 09:52:42.349 INFO running `"docker" "inspect" "be2e36a805aa5f33daea5c202b546e3077bf36192abf8f8f9d2a7a02cb378614"`
Dec 13 09:52:42.436 INFO running `"docker" "rm" "-f" "be2e36a805aa5f33daea5c202b546e3077bf36192abf8f8f9d2a7a02cb378614"`
Dec 13 09:52:42.580 INFO [stdout] be2e36a805aa5f33daea5c202b546e3077bf36192abf8f8f9d2a7a02cb378614
Dec 13 09:52:42.582 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen --no-run" "-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"`
Dec 13 09:52:42.839 INFO [stdout] 4d144e648f1dca942688e40170e92f1f28057b50633ce9986a64cb4743bffd11
Dec 13 09:52:42.844 INFO running `"docker" "start" "-a" "4d144e648f1dca942688e40170e92f1f28057b50633ce9986a64cb4743bffd11"`
Dec 13 09:52:43.288 INFO [stderr] usermod: no changes
Dec 13 09:52:43.311 INFO [stderr]    Compiling rust-fst v0.1.0 (/source)
Dec 13 09:52:43.619 INFO [stderr] warning: method is never used: `empty`
Dec 13 09:52:43.619 INFO [stderr]   --> src/fst.rs:36:5
Dec 13 09:52:43.619 INFO [stderr]    |
Dec 13 09:52:43.619 INFO [stderr] 36 |     pub fn empty() -> Self {
Dec 13 09:52:43.619 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:52:43.619 INFO [stderr]    |
Dec 13 09:52:43.619 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 13 09:52:43.619 INFO [stderr] 
Dec 13 09:52:43.619 INFO [stderr] warning: method is never used: `string`
Dec 13 09:52:43.619 INFO [stderr]   --> src/fst.rs:60:5
Dec 13 09:52:43.619 INFO [stderr]    |
Dec 13 09:52:43.619 INFO [stderr] 60 |     pub fn string(s: &str) -> Self {
Dec 13 09:52:43.619 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:52:43.619 INFO [stderr] 
Dec 13 09:52:43.619 INFO [stderr] warning: method is never used: `and`
Dec 13 09:52:43.619 INFO [stderr]   --> src/fst.rs:83:5
Dec 13 09:52:43.619 INFO [stderr]    |
Dec 13 09:52:43.619 INFO [stderr] 83 |     pub fn and(m1: Self, m2: Self) -> Self {
Dec 13 09:52:43.619 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:52:43.620 INFO [stderr] 
Dec 13 09:52:43.620 INFO [stderr] warning: method is never used: `and_optionally`
Dec 13 09:52:43.620 INFO [stderr]   --> src/fst.rs:97:5
Dec 13 09:52:43.620 INFO [stderr]    |
Dec 13 09:52:43.620 INFO [stderr] 97 |     pub fn and_optionally(m1: Self, m2: Self) -> Self {
Dec 13 09:52:43.620 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:52:43.620 INFO [stderr] 
Dec 13 09:52:43.620 INFO [stderr] warning: method is never used: `repeated`
Dec 13 09:52:43.620 INFO [stderr]    --> src/fst.rs:159:5
Dec 13 09:52:43.620 INFO [stderr]     |
Dec 13 09:52:43.620 INFO [stderr] 159 |     pub fn repeated(mut m: Self) -> Self {
Dec 13 09:52:43.620 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:52:43.620 INFO [stderr] 
Dec 13 09:52:43.626 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 09:52:43.626 INFO [stderr]    --> src/fst.rs:217:9
Dec 13 09:52:43.626 INFO [stderr]     |
Dec 13 09:52:43.626 INFO [stderr] 217 |         writeln!(f, "{} {}", self.state_count, self.transitions.len());
Dec 13 09:52:43.626 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:52:43.626 INFO [stderr]     |
Dec 13 09:52:43.626 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 13 09:52:43.626 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 09:52:43.626 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)
Dec 13 09:52:43.626 INFO [stderr] 
Dec 13 09:52:43.626 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 09:52:43.626 INFO [stderr]    --> src/fst.rs:219:13
Dec 13 09:52:43.626 INFO [stderr]     |
Dec 13 09:52:43.626 INFO [stderr] 219 |             writeln!(f, "{}\t{}\t{}\t{}", t.from, t.to, t.on.unwrap_or('`'), t.with.unwrap_or_default());
Dec 13 09:52:43.626 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:52:43.626 INFO [stderr]     |
Dec 13 09:52:43.626 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 09:52:43.626 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)
Dec 13 09:52:43.626 INFO [stderr] 
Dec 13 09:52:43.626 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 09:52:43.626 INFO [stderr]    --> src/fst.rs:223:13
Dec 13 09:52:43.626 INFO [stderr]     |
Dec 13 09:52:43.626 INFO [stderr] 223 |             write!(f, "{} ", state);
Dec 13 09:52:43.626 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:52:43.626 INFO [stderr]     |
Dec 13 09:52:43.626 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 09:52:43.626 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)
Dec 13 09:52:43.626 INFO [stderr] 
Dec 13 09:52:43.866 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
Dec 13 09:52:43.867 INFO [stderr] su: No module specific data is present
Dec 13 09:52:44.097 INFO running `"docker" "inspect" "4d144e648f1dca942688e40170e92f1f28057b50633ce9986a64cb4743bffd11"`
Dec 13 09:52:44.219 INFO running `"docker" "rm" "-f" "4d144e648f1dca942688e40170e92f1f28057b50633ce9986a64cb4743bffd11"`
Dec 13 09:52:44.323 INFO [stdout] 4d144e648f1dca942688e40170e92f1f28057b50633ce9986a64cb4743bffd11
Dec 13 09:52:44.384 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen" "-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"`
Dec 13 09:52:44.551 INFO [stdout] 588d1f5d99a314d3706cf40bc37e09b2efcd6ada7ddca676bf1963178b516a68
Dec 13 09:52:44.556 INFO running `"docker" "start" "-a" "588d1f5d99a314d3706cf40bc37e09b2efcd6ada7ddca676bf1963178b516a68"`
Dec 13 09:52:45.116 INFO [stderr] usermod: no changes
Dec 13 09:52:45.174 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Dec 13 09:52:45.183 INFO [stderr]      Running /target/debug/deps/rust_fst-a6c8634183c33ecb
Dec 13 09:52:45.199 INFO [stderr] su: No module specific data is present
Dec 13 09:52:45.199 INFO [stdout] 
Dec 13 09:52:45.199 INFO [stdout] running 0 tests
Dec 13 09:52:45.199 INFO [stdout] 
Dec 13 09:52:45.199 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 09:52:45.199 INFO [stdout] 
Dec 13 09:52:45.778 INFO running `"docker" "inspect" "588d1f5d99a314d3706cf40bc37e09b2efcd6ada7ddca676bf1963178b516a68"`
Dec 13 09:52:46.062 INFO running `"docker" "rm" "-f" "588d1f5d99a314d3706cf40bc37e09b2efcd6ada7ddca676bf1963178b516a68"`
Dec 13 09:52:46.278 INFO [stdout] 588d1f5d99a314d3706cf40bc37e09b2efcd6ada7ddca676bf1963178b516a68