[INFO] updating cached repository https://github.com/pnathan/signifier
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c7d4b4fa772fd1e301901b453dc81e0cac60f3ce
[INFO] testing pnathan/signifier against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpnathan%2Fsignifier" "work/builds/worker-2/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pnathan/signifier on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/pnathan/signifier
[INFO] finished tweaking git repo https://github.com/pnathan/signifier
[INFO] tweaked toml for git repo https://github.com/pnathan/signifier written to work/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/pnathan/signifier already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] b8a5c06ee6c4abc6779928032ef9f553b5b883fcf4f187d594d4e6e3e7daa096
[INFO] running `"docker" "start" "-a" "b8a5c06ee6c4abc6779928032ef9f553b5b883fcf4f187d594d4e6e3e7daa096"`
[INFO] [stderr]    Compiling hyper v0.10.7
[INFO] [stderr]    Compiling flame v0.1.11
[INFO] [stderr]    Compiling semver-parser v0.6.2
[INFO] [stderr]    Compiling semver v0.5.1
[INFO] [stderr]    Compiling rusted_cypher v1.0.0
[INFO] [stderr]    Compiling signifier v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]    --> src/main.rs:135:28
[INFO] [stderr]     |
[INFO] [stderr] 135 |                    match e.cause() {
[INFO] [stderr]     |                            ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tx_collector`
[INFO] [stderr]    --> src/main.rs:199:17
[INFO] [stderr]     |
[INFO] [stderr] 199 |         let mut tx_collector = tx_collector.clone();
[INFO] [stderr]     |                 ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_tx_collector`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `word_file_map`
[INFO] [stderr]    --> src/main.rs:331:13
[INFO] [stderr]     |
[INFO] [stderr] 331 |     let mut word_file_map : HashMap<String, Vec<String>> = HashMap::new();
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_word_file_map`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:199:13
[INFO] [stderr]     |
[INFO] [stderr] 199 |         let mut tx_collector = tx_collector.clone();
[INFO] [stderr]     |             ----^^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:331:9
[INFO] [stderr]     |
[INFO] [stderr] 331 |     let mut word_file_map : HashMap<String, Vec<String>> = HashMap::new();
[INFO] [stderr]     |         ----^^^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.36s
[INFO] running `"docker" "inspect" "b8a5c06ee6c4abc6779928032ef9f553b5b883fcf4f187d594d4e6e3e7daa096"`
[INFO] running `"docker" "rm" "-f" "b8a5c06ee6c4abc6779928032ef9f553b5b883fcf4f187d594d4e6e3e7daa096"`
[INFO] [stdout] b8a5c06ee6c4abc6779928032ef9f553b5b883fcf4f187d594d4e6e3e7daa096
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] aec9b946c5af985b99993d1d9bbb3f6086a19f5da3652baaaba39abbe8ef4a77
[INFO] running `"docker" "start" "-a" "aec9b946c5af985b99993d1d9bbb3f6086a19f5da3652baaaba39abbe8ef4a77"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling signifier v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]    --> src/main.rs:135:28
[INFO] [stderr]     |
[INFO] [stderr] 135 |                    match e.cause() {
[INFO] [stderr]     |                            ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tx_collector`
[INFO] [stderr]    --> src/main.rs:199:17
[INFO] [stderr]     |
[INFO] [stderr] 199 |         let mut tx_collector = tx_collector.clone();
[INFO] [stderr]     |                 ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_tx_collector`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `word_file_map`
[INFO] [stderr]    --> src/main.rs:331:13
[INFO] [stderr]     |
[INFO] [stderr] 331 |     let mut word_file_map : HashMap<String, Vec<String>> = HashMap::new();
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_word_file_map`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:199:13
[INFO] [stderr]     |
[INFO] [stderr] 199 |         let mut tx_collector = tx_collector.clone();
[INFO] [stderr]     |             ----^^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:331:9
[INFO] [stderr]     |
[INFO] [stderr] 331 |     let mut word_file_map : HashMap<String, Vec<String>> = HashMap::new();
[INFO] [stderr]     |         ----^^^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.04s
[INFO] running `"docker" "inspect" "aec9b946c5af985b99993d1d9bbb3f6086a19f5da3652baaaba39abbe8ef4a77"`
[INFO] running `"docker" "rm" "-f" "aec9b946c5af985b99993d1d9bbb3f6086a19f5da3652baaaba39abbe8ef4a77"`
[INFO] [stdout] aec9b946c5af985b99993d1d9bbb3f6086a19f5da3652baaaba39abbe8ef4a77
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] e8a8c0a556bab95a223b7c1696067465916c2926eb0f4b77b9bab0a7c1067fc8
[INFO] running `"docker" "start" "-a" "e8a8c0a556bab95a223b7c1696067465916c2926eb0f4b77b9bab0a7c1067fc8"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/signifier-cd0e2a207045204c
[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" "e8a8c0a556bab95a223b7c1696067465916c2926eb0f4b77b9bab0a7c1067fc8"`
[INFO] running `"docker" "rm" "-f" "e8a8c0a556bab95a223b7c1696067465916c2926eb0f4b77b9bab0a7c1067fc8"`
[INFO] [stdout] e8a8c0a556bab95a223b7c1696067465916c2926eb0f4b77b9bab0a7c1067fc8