Dec 05 13:41:25.407 INFO testing mrozycki/rust-fst against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 05 13:41:25.407 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 05 13:41:25.628 INFO [stdout] 6c9bf36ffd779547cffad4c3d41f11008224da812ba73b962c125714cb560b54
Dec 05 13:41:25.634 INFO running `"docker" "start" "-a" "6c9bf36ffd779547cffad4c3d41f11008224da812ba73b962c125714cb560b54"`
Dec 05 13:41:26.043 INFO [stderr] usermod: no changes
Dec 05 13:41:26.071 INFO [stderr]    Compiling rust-fst v0.1.0 (/source)
Dec 05 13:41:26.370 INFO [stderr] warning: method is never used: `empty`
Dec 05 13:41:26.370 INFO [stderr]   --> src/fst.rs:36:5
Dec 05 13:41:26.370 INFO [stderr]    |
Dec 05 13:41:26.370 INFO [stderr] 36 |     pub fn empty() -> Self {
Dec 05 13:41:26.370 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:41:26.370 INFO [stderr]    |
Dec 05 13:41:26.370 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 13:41:26.370 INFO [stderr] 
Dec 05 13:41:26.370 INFO [stderr] warning: method is never used: `string`
Dec 05 13:41:26.370 INFO [stderr]   --> src/fst.rs:60:5
Dec 05 13:41:26.370 INFO [stderr]    |
Dec 05 13:41:26.371 INFO [stderr] 60 |     pub fn string(s: &str) -> Self {
Dec 05 13:41:26.371 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:41:26.371 INFO [stderr] 
Dec 05 13:41:26.371 INFO [stderr] warning: method is never used: `and`
Dec 05 13:41:26.371 INFO [stderr]   --> src/fst.rs:83:5
Dec 05 13:41:26.371 INFO [stderr]    |
Dec 05 13:41:26.371 INFO [stderr] 83 |     pub fn and(m1: Self, m2: Self) -> Self {
Dec 05 13:41:26.371 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:41:26.371 INFO [stderr] 
Dec 05 13:41:26.371 INFO [stderr] warning: method is never used: `and_optionally`
Dec 05 13:41:26.371 INFO [stderr]   --> src/fst.rs:97:5
Dec 05 13:41:26.371 INFO [stderr]    |
Dec 05 13:41:26.371 INFO [stderr] 97 |     pub fn and_optionally(m1: Self, m2: Self) -> Self {
Dec 05 13:41:26.371 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:41:26.371 INFO [stderr] 
Dec 05 13:41:26.371 INFO [stderr] warning: method is never used: `repeated`
Dec 05 13:41:26.371 INFO [stderr]    --> src/fst.rs:159:5
Dec 05 13:41:26.371 INFO [stderr]     |
Dec 05 13:41:26.371 INFO [stderr] 159 |     pub fn repeated(mut m: Self) -> Self {
Dec 05 13:41:26.371 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:41:26.371 INFO [stderr] 
Dec 05 13:41:26.376 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 13:41:26.376 INFO [stderr]    --> src/fst.rs:217:9
Dec 05 13:41:26.376 INFO [stderr]     |
Dec 05 13:41:26.376 INFO [stderr] 217 |         writeln!(f, "{} {}", self.state_count, self.transitions.len());
Dec 05 13:41:26.376 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:41:26.376 INFO [stderr]     |
Dec 05 13:41:26.376 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 13:41:26.376 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 13:41:26.376 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 05 13:41:26.376 INFO [stderr] 
Dec 05 13:41:26.376 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 13:41:26.376 INFO [stderr]    --> src/fst.rs:219:13
Dec 05 13:41:26.376 INFO [stderr]     |
Dec 05 13:41:26.376 INFO [stderr] 219 |             writeln!(f, "{}\t{}\t{}\t{}", t.from, t.to, t.on.unwrap_or('`'), t.with.unwrap_or_default());
Dec 05 13:41:26.376 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:41:26.376 INFO [stderr]     |
Dec 05 13:41:26.376 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 13:41:26.376 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 05 13:41:26.377 INFO [stderr] 
Dec 05 13:41:26.377 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 13:41:26.377 INFO [stderr]    --> src/fst.rs:223:13
Dec 05 13:41:26.377 INFO [stderr]     |
Dec 05 13:41:26.377 INFO [stderr] 223 |             write!(f, "{} ", state);
Dec 05 13:41:26.377 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:41:26.377 INFO [stderr]     |
Dec 05 13:41:26.377 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 13:41:26.377 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 05 13:41:26.377 INFO [stderr] 
Dec 05 13:41:27.069 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
Dec 05 13:41:27.071 INFO [stderr] su: No module specific data is present
Dec 05 13:41:27.293 INFO running `"docker" "inspect" "6c9bf36ffd779547cffad4c3d41f11008224da812ba73b962c125714cb560b54"`
Dec 05 13:41:27.359 INFO running `"docker" "rm" "-f" "6c9bf36ffd779547cffad4c3d41f11008224da812ba73b962c125714cb560b54"`
Dec 05 13:41:27.479 INFO [stdout] 6c9bf36ffd779547cffad4c3d41f11008224da812ba73b962c125714cb560b54
Dec 05 13:41:27.483 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 05 13:41:27.688 INFO [stdout] ad906aef33d0b7394fbc4f7de685374a244648051276a367e2f634cb51d4d1a6
Dec 05 13:41:27.690 INFO running `"docker" "start" "-a" "ad906aef33d0b7394fbc4f7de685374a244648051276a367e2f634cb51d4d1a6"`
Dec 05 13:41:28.072 INFO [stderr] usermod: no changes
Dec 05 13:41:28.100 INFO [stderr]    Compiling rust-fst v0.1.0 (/source)
Dec 05 13:41:28.391 INFO [stderr] warning: method is never used: `empty`
Dec 05 13:41:28.391 INFO [stderr]   --> src/fst.rs:36:5
Dec 05 13:41:28.391 INFO [stderr]    |
Dec 05 13:41:28.391 INFO [stderr] 36 |     pub fn empty() -> Self {
Dec 05 13:41:28.391 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:41:28.391 INFO [stderr]    |
Dec 05 13:41:28.391 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 13:41:28.391 INFO [stderr] 
Dec 05 13:41:28.391 INFO [stderr] warning: method is never used: `string`
Dec 05 13:41:28.391 INFO [stderr]   --> src/fst.rs:60:5
Dec 05 13:41:28.391 INFO [stderr]    |
Dec 05 13:41:28.391 INFO [stderr] 60 |     pub fn string(s: &str) -> Self {
Dec 05 13:41:28.391 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:41:28.391 INFO [stderr] 
Dec 05 13:41:28.391 INFO [stderr] warning: method is never used: `and`
Dec 05 13:41:28.391 INFO [stderr]   --> src/fst.rs:83:5
Dec 05 13:41:28.391 INFO [stderr]    |
Dec 05 13:41:28.391 INFO [stderr] 83 |     pub fn and(m1: Self, m2: Self) -> Self {
Dec 05 13:41:28.391 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:41:28.391 INFO [stderr] 
Dec 05 13:41:28.391 INFO [stderr] warning: method is never used: `and_optionally`
Dec 05 13:41:28.391 INFO [stderr]   --> src/fst.rs:97:5
Dec 05 13:41:28.391 INFO [stderr]    |
Dec 05 13:41:28.391 INFO [stderr] 97 |     pub fn and_optionally(m1: Self, m2: Self) -> Self {
Dec 05 13:41:28.391 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:41:28.391 INFO [stderr] 
Dec 05 13:41:28.391 INFO [stderr] warning: method is never used: `repeated`
Dec 05 13:41:28.391 INFO [stderr]    --> src/fst.rs:159:5
Dec 05 13:41:28.391 INFO [stderr]     |
Dec 05 13:41:28.391 INFO [stderr] 159 |     pub fn repeated(mut m: Self) -> Self {
Dec 05 13:41:28.391 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:41:28.391 INFO [stderr] 
Dec 05 13:41:28.401 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 13:41:28.401 INFO [stderr]    --> src/fst.rs:217:9
Dec 05 13:41:28.401 INFO [stderr]     |
Dec 05 13:41:28.401 INFO [stderr] 217 |         writeln!(f, "{} {}", self.state_count, self.transitions.len());
Dec 05 13:41:28.401 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:41:28.401 INFO [stderr]     |
Dec 05 13:41:28.401 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 13:41:28.401 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 13:41:28.401 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 05 13:41:28.401 INFO [stderr] 
Dec 05 13:41:28.401 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 13:41:28.401 INFO [stderr]    --> src/fst.rs:219:13
Dec 05 13:41:28.401 INFO [stderr]     |
Dec 05 13:41:28.401 INFO [stderr] 219 |             writeln!(f, "{}\t{}\t{}\t{}", t.from, t.to, t.on.unwrap_or('`'), t.with.unwrap_or_default());
Dec 05 13:41:28.401 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:41:28.401 INFO [stderr]     |
Dec 05 13:41:28.401 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 13:41:28.404 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 05 13:41:28.404 INFO [stderr] 
Dec 05 13:41:28.404 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 13:41:28.404 INFO [stderr]    --> src/fst.rs:223:13
Dec 05 13:41:28.404 INFO [stderr]     |
Dec 05 13:41:28.404 INFO [stderr] 223 |             write!(f, "{} ", state);
Dec 05 13:41:28.404 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 13:41:28.404 INFO [stderr]     |
Dec 05 13:41:28.404 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 13:41:28.404 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 05 13:41:28.404 INFO [stderr] 
Dec 05 13:41:28.646 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
Dec 05 13:41:28.648 INFO [stderr] su: No module specific data is present
Dec 05 13:41:28.848 INFO running `"docker" "inspect" "ad906aef33d0b7394fbc4f7de685374a244648051276a367e2f634cb51d4d1a6"`
Dec 05 13:41:28.927 INFO running `"docker" "rm" "-f" "ad906aef33d0b7394fbc4f7de685374a244648051276a367e2f634cb51d4d1a6"`
Dec 05 13:41:29.078 INFO [stdout] ad906aef33d0b7394fbc4f7de685374a244648051276a367e2f634cb51d4d1a6
Dec 05 13:41:29.083 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 05 13:41:29.443 INFO [stdout] 26d13caf4af404d92cd89c3db9ad766cf1b71341978aafeb377f5ee102c6999b
Dec 05 13:41:29.446 INFO running `"docker" "start" "-a" "26d13caf4af404d92cd89c3db9ad766cf1b71341978aafeb377f5ee102c6999b"`
Dec 05 13:41:29.842 INFO [stderr] usermod: no changes
Dec 05 13:41:29.868 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 05 13:41:29.868 INFO [stderr]      Running /target/debug/deps/rust_fst-d4125e910e9b020d
Dec 05 13:41:29.870 INFO [stdout] 
Dec 05 13:41:29.870 INFO [stdout] running 0 tests
Dec 05 13:41:29.870 INFO [stdout] 
Dec 05 13:41:29.870 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 13:41:29.870 INFO [stdout] 
Dec 05 13:41:29.872 INFO [stderr] su: No module specific data is present
Dec 05 13:41:30.212 INFO running `"docker" "inspect" "26d13caf4af404d92cd89c3db9ad766cf1b71341978aafeb377f5ee102c6999b"`
Dec 05 13:41:30.578 INFO running `"docker" "rm" "-f" "26d13caf4af404d92cd89c3db9ad766cf1b71341978aafeb377f5ee102c6999b"`
Dec 05 13:41:30.831 INFO [stdout] 26d13caf4af404d92cd89c3db9ad766cf1b71341978aafeb377f5ee102c6999b