[INFO] crate sfink_callgraph_traversal 0.1.0 is already in cache
[INFO] extracting crate sfink_callgraph_traversal 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/sfink_callgraph_traversal/0.1.0
[INFO] extracting crate sfink_callgraph_traversal 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/sfink_callgraph_traversal/0.1.0
[INFO] validating manifest of sfink_callgraph_traversal-0.1.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sfink_callgraph_traversal-0.1.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing sfink_callgraph_traversal-0.1.0
[INFO] finished frobbing sfink_callgraph_traversal-0.1.0
[INFO] frobbed toml for sfink_callgraph_traversal-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/sfink_callgraph_traversal/0.1.0/Cargo.toml
[INFO] started frobbing sfink_callgraph_traversal-0.1.0
[INFO] finished frobbing sfink_callgraph_traversal-0.1.0
[INFO] frobbed toml for sfink_callgraph_traversal-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/sfink_callgraph_traversal/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing sfink_callgraph_traversal-0.1.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/sfink_callgraph_traversal/0.1.0:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 75585ae12668ccd1c73ae40b26b62497408f3eff53b2985fc42069b1ae7d2d3c
[INFO] running `"docker" "start" "-a" "75585ae12668ccd1c73ae40b26b62497408f3eff53b2985fc42069b1ae7d2d3c"`
[INFO] [stderr]    Compiling cpython v0.1.0
[INFO] [stderr]    Compiling python27-sys v0.1.2
[INFO] [stderr]    Compiling sfink_callgraph_traversal v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: enum is never used: `Matcher`
[INFO] [stderr]   --> src/callgraph.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub enum Matcher<'a> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/callgraph.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn new(pattern : &str) -> Option<Matcher> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_match`
[INFO] [stderr]   --> src/callgraph.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     pub fn is_match(&self, cg : &Callgraph, idx : NodeIndex) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.33s
[INFO] running `"docker" "inspect" "75585ae12668ccd1c73ae40b26b62497408f3eff53b2985fc42069b1ae7d2d3c"`
[INFO] running `"docker" "rm" "-f" "75585ae12668ccd1c73ae40b26b62497408f3eff53b2985fc42069b1ae7d2d3c"`
[INFO] [stdout] 75585ae12668ccd1c73ae40b26b62497408f3eff53b2985fc42069b1ae7d2d3c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/sfink_callgraph_traversal/0.1.0:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] acacb2038ea299bf99bcce41431cdb59130820ffeda53bfff1b36930b7a5a0f1
[INFO] running `"docker" "start" "-a" "acacb2038ea299bf99bcce41431cdb59130820ffeda53bfff1b36930b7a5a0f1"`
[INFO] [stderr]    Compiling sfink_callgraph_traversal v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: enum is never used: `Matcher`
[INFO] [stderr]   --> src/callgraph.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub enum Matcher<'a> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/callgraph.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn new(pattern : &str) -> Option<Matcher> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_match`
[INFO] [stderr]   --> src/callgraph.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     pub fn is_match(&self, cg : &Callgraph, idx : NodeIndex) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.05s
[INFO] running `"docker" "inspect" "acacb2038ea299bf99bcce41431cdb59130820ffeda53bfff1b36930b7a5a0f1"`
[INFO] running `"docker" "rm" "-f" "acacb2038ea299bf99bcce41431cdb59130820ffeda53bfff1b36930b7a5a0f1"`
[INFO] [stdout] acacb2038ea299bf99bcce41431cdb59130820ffeda53bfff1b36930b7a5a0f1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/sfink_callgraph_traversal/0.1.0:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 52fd5153b3ebee08ddadc4736fc3ce0d6528bb5c528e4b0c1052822c29e2a052
[INFO] running `"docker" "start" "-a" "52fd5153b3ebee08ddadc4736fc3ce0d6528bb5c528e4b0c1052822c29e2a052"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hazgraph-7cc35ce2da5accaf
[INFO] [stderr]      Running /opt/crater/target/debug/deps/cgtraverse-954580955e165cc6
[INFO] [stderr]    Doc-tests hazgraph
[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] [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] [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" "52fd5153b3ebee08ddadc4736fc3ce0d6528bb5c528e4b0c1052822c29e2a052"`
[INFO] running `"docker" "rm" "-f" "52fd5153b3ebee08ddadc4736fc3ce0d6528bb5c528e4b0c1052822c29e2a052"`
[INFO] [stdout] 52fd5153b3ebee08ddadc4736fc3ce0d6528bb5c528e4b0c1052822c29e2a052