[INFO] updating cached repository mrozycki/rust-fst [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/mrozycki/rust-fst [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/mrozycki/rust-fst" "work/ex/beta-1.37-6/sources/1.36.0/gh/mrozycki/rust-fst"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/mrozycki/rust-fst'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/mrozycki/rust-fst" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mrozycki/rust-fst"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mrozycki/rust-fst'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 27812d506fc0f4a45943596faebdaaccd58e372c [INFO] sha for GitHub repo mrozycki/rust-fst: 27812d506fc0f4a45943596faebdaaccd58e372c [INFO] validating manifest of mrozycki/rust-fst on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of mrozycki/rust-fst on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing mrozycki/rust-fst [INFO] finished frobbing mrozycki/rust-fst [INFO] frobbed toml for mrozycki/rust-fst written to work/ex/beta-1.37-6/sources/1.36.0/gh/mrozycki/rust-fst/Cargo.toml [INFO] started frobbing mrozycki/rust-fst [INFO] finished frobbing mrozycki/rust-fst [INFO] frobbed toml for mrozycki/rust-fst written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mrozycki/rust-fst/Cargo.toml [INFO] crate mrozycki/rust-fst already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing mrozycki/rust-fst against 1.36.0 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/mrozycki/rust-fst:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"` [INFO] [stdout] bbedd57768fe5462d82f14bc24605bad4cd9cc09fe4420e5ac97d42af5cdfdae [INFO] running `"docker" "start" "-a" "bbedd57768fe5462d82f14bc24605bad4cd9cc09fe4420e5ac97d42af5cdfdae"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] [stderr] Compiling rust-fst v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: method is never used: `empty` [INFO] [stderr] --> src/fst.rs:36:5 [INFO] [stderr] | [INFO] [stderr] 36 | pub fn empty() -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `string` [INFO] [stderr] --> src/fst.rs:60:5 [INFO] [stderr] | [INFO] [stderr] 60 | pub fn string(s: &str) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `and` [INFO] [stderr] --> src/fst.rs:83:5 [INFO] [stderr] | [INFO] [stderr] 83 | pub fn and(m1: Self, m2: Self) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `and_optionally` [INFO] [stderr] --> src/fst.rs:97:5 [INFO] [stderr] | [INFO] [stderr] 97 | pub fn and_optionally(m1: Self, m2: Self) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `repeated` [INFO] [stderr] --> src/fst.rs:159:5 [INFO] [stderr] | [INFO] [stderr] 159 | pub fn repeated(mut m: Self) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/fst.rs:217:9 [INFO] [stderr] | [INFO] [stderr] 217 | writeln!(f, "{} {}", self.state_count, self.transitions.len()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/fst.rs:219:13 [INFO] [stderr] | [INFO] [stderr] 219 | writeln!(f, "{}\t{}\t{}\t{}", t.from, t.to, t.on.unwrap_or('`'), t.with.unwrap_or_default()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/fst.rs:223:13 [INFO] [stderr] | [INFO] [stderr] 223 | write!(f, "{} ", state); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.33s [INFO] running `"docker" "inspect" "bbedd57768fe5462d82f14bc24605bad4cd9cc09fe4420e5ac97d42af5cdfdae"` [INFO] running `"docker" "rm" "-f" "bbedd57768fe5462d82f14bc24605bad4cd9cc09fe4420e5ac97d42af5cdfdae"` [INFO] [stdout] bbedd57768fe5462d82f14bc24605bad4cd9cc09fe4420e5ac97d42af5cdfdae [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/mrozycki/rust-fst:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen" "--no-run"` [INFO] [stdout] 9fa85e0cb90e5a7eadad02cee424fe66e1d8f7056a75ef342352156cd0433cdc [INFO] running `"docker" "start" "-a" "9fa85e0cb90e5a7eadad02cee424fe66e1d8f7056a75ef342352156cd0433cdc"` [INFO] [stderr] Compiling rust-fst v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: method is never used: `empty` [INFO] [stderr] --> src/fst.rs:36:5 [INFO] [stderr] | [INFO] [stderr] 36 | pub fn empty() -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `string` [INFO] [stderr] --> src/fst.rs:60:5 [INFO] [stderr] | [INFO] [stderr] 60 | pub fn string(s: &str) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `and` [INFO] [stderr] --> src/fst.rs:83:5 [INFO] [stderr] | [INFO] [stderr] 83 | pub fn and(m1: Self, m2: Self) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `and_optionally` [INFO] [stderr] --> src/fst.rs:97:5 [INFO] [stderr] | [INFO] [stderr] 97 | pub fn and_optionally(m1: Self, m2: Self) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `repeated` [INFO] [stderr] --> src/fst.rs:159:5 [INFO] [stderr] | [INFO] [stderr] 159 | pub fn repeated(mut m: Self) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/fst.rs:217:9 [INFO] [stderr] | [INFO] [stderr] 217 | writeln!(f, "{} {}", self.state_count, self.transitions.len()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/fst.rs:219:13 [INFO] [stderr] | [INFO] [stderr] 219 | writeln!(f, "{}\t{}\t{}\t{}", t.from, t.to, t.on.unwrap_or('`'), t.with.unwrap_or_default()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/fst.rs:223:13 [INFO] [stderr] | [INFO] [stderr] 223 | write!(f, "{} ", state); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.91s [INFO] running `"docker" "inspect" "9fa85e0cb90e5a7eadad02cee424fe66e1d8f7056a75ef342352156cd0433cdc"` [INFO] running `"docker" "rm" "-f" "9fa85e0cb90e5a7eadad02cee424fe66e1d8f7056a75ef342352156cd0433cdc"` [INFO] [stdout] 9fa85e0cb90e5a7eadad02cee424fe66e1d8f7056a75ef342352156cd0433cdc [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/mrozycki/rust-fst:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen"` [INFO] [stdout] 8cb90cdf75c8645cbd8b80071f3b044b78e80ae79b51d71818ab7bdff8cd3a4c [INFO] running `"docker" "start" "-a" "8cb90cdf75c8645cbd8b80071f3b044b78e80ae79b51d71818ab7bdff8cd3a4c"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running /opt/crater/target/debug/deps/rust_fst-9312adefc8ba0a68 [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 [INFO] [stdout] [INFO] running `"docker" "inspect" "8cb90cdf75c8645cbd8b80071f3b044b78e80ae79b51d71818ab7bdff8cd3a4c"` [INFO] running `"docker" "rm" "-f" "8cb90cdf75c8645cbd8b80071f3b044b78e80ae79b51d71818ab7bdff8cd3a4c"` [INFO] [stdout] 8cb90cdf75c8645cbd8b80071f3b044b78e80ae79b51d71818ab7bdff8cd3a4c