[INFO] crate screwsat 0.1.0 is already in cache
[INFO] testing screwsat-0.1.0 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate screwsat 0.1.0 into work/builds/worker-1/source
[INFO] validating manifest of crates.io crate screwsat 0.1.0 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate screwsat 0.1.0
[INFO] finished tweaking crates.io crate screwsat 0.1.0
[INFO] tweaked toml for crates.io crate screwsat 0.1.0 written to work/builds/worker-1/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/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" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 26eb8c73a7e0bf94ef230d9b2f18464e5e929e5b60a2da195360d9fdefb9a789
[INFO] running `"docker" "start" "-a" "26eb8c73a7e0bf94ef230d9b2f18464e5e929e5b60a2da195360d9fdefb9a789"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling screwsat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:92:66
[INFO] [stderr]    |
[INFO] [stderr] 92 |     pub fn parse(&mut self, filename: &String) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                                                  ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `clause_count`
[INFO] [stderr]   --> src/main.rs:69:42
[INFO] [stderr]    |
[INFO] [stderr] 69 |     fn init(&mut self, var_count: usize, clause_count: usize) {
[INFO] [stderr]    |                                          ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_clause_count`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `UNSATISFIABLE`
[INFO] [stderr]   --> src/main.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     UNSATISFIABLE,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SATISFIABLE`
[INFO] [stderr]   --> src/main.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     SATISFIABLE,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "26eb8c73a7e0bf94ef230d9b2f18464e5e929e5b60a2da195360d9fdefb9a789"`
[INFO] running `"docker" "rm" "-f" "26eb8c73a7e0bf94ef230d9b2f18464e5e929e5b60a2da195360d9fdefb9a789"`
[INFO] [stdout] 26eb8c73a7e0bf94ef230d9b2f18464e5e929e5b60a2da195360d9fdefb9a789
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/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" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] a3b7fb9fe78fc0c9125f92dc8bdb728273218141b137c5590bf9433b44d4f7ca
[INFO] running `"docker" "start" "-a" "a3b7fb9fe78fc0c9125f92dc8bdb728273218141b137c5590bf9433b44d4f7ca"`
[INFO] [stderr]    Compiling screwsat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:92:66
[INFO] [stderr]    |
[INFO] [stderr] 92 |     pub fn parse(&mut self, filename: &String) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                                                  ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `clause_count`
[INFO] [stderr]   --> src/main.rs:69:42
[INFO] [stderr]    |
[INFO] [stderr] 69 |     fn init(&mut self, var_count: usize, clause_count: usize) {
[INFO] [stderr]    |                                          ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_clause_count`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `UNSATISFIABLE`
[INFO] [stderr]   --> src/main.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     UNSATISFIABLE,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SATISFIABLE`
[INFO] [stderr]   --> src/main.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     SATISFIABLE,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `"docker" "inspect" "a3b7fb9fe78fc0c9125f92dc8bdb728273218141b137c5590bf9433b44d4f7ca"`
[INFO] running `"docker" "rm" "-f" "a3b7fb9fe78fc0c9125f92dc8bdb728273218141b137c5590bf9433b44d4f7ca"`
[INFO] [stdout] a3b7fb9fe78fc0c9125f92dc8bdb728273218141b137c5590bf9433b44d4f7ca
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/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" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 14f6aed0c16925a95682e43baea24eafb8aba4fa1836c6e4fbfac0704c7bf0c6
[INFO] running `"docker" "start" "-a" "14f6aed0c16925a95682e43baea24eafb8aba4fa1836c6e4fbfac0704c7bf0c6"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/screwsat-aa95e83a2c8730f7
[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" "14f6aed0c16925a95682e43baea24eafb8aba4fa1836c6e4fbfac0704c7bf0c6"`
[INFO] running `"docker" "rm" "-f" "14f6aed0c16925a95682e43baea24eafb8aba4fa1836c6e4fbfac0704c7bf0c6"`
[INFO] [stdout] 14f6aed0c16925a95682e43baea24eafb8aba4fa1836c6e4fbfac0704c7bf0c6