[INFO] updating cached repository vemilyus/virtuoso
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/vemilyus/virtuoso
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/vemilyus/virtuoso" "work/ex/beta-1.38-1/sources/1.37.0/gh/vemilyus/virtuoso"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/vemilyus/virtuoso'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/vemilyus/virtuoso" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vemilyus/virtuoso"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vemilyus/virtuoso'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bd34249903ce67609b57a086a679552239f8e5b1
[INFO] sha for GitHub repo vemilyus/virtuoso: bd34249903ce67609b57a086a679552239f8e5b1
[INFO] validating manifest of vemilyus/virtuoso 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 vemilyus/virtuoso 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 vemilyus/virtuoso
[INFO] finished frobbing vemilyus/virtuoso
[INFO] frobbed toml for vemilyus/virtuoso written to work/ex/beta-1.38-1/sources/1.37.0/gh/vemilyus/virtuoso/Cargo.toml
[INFO] started frobbing vemilyus/virtuoso
[INFO] finished frobbing vemilyus/virtuoso
[INFO] frobbed toml for vemilyus/virtuoso written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vemilyus/virtuoso/Cargo.toml
[INFO] crate vemilyus/virtuoso already has a lockfile, it will not be regenerated
[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 vemilyus/virtuoso 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/vemilyus/virtuoso:/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] 3c7736493c458538542d11090a783956686883973e9cb979db912e6a937f30f6
[INFO] running `"docker" "start" "-a" "3c7736493c458538542d11090a783956686883973e9cb979db912e6a937f30f6"`
[INFO] [stderr]    Compiling virtuoso v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `PathBuf`, `Path`
[INFO] [stderr]  --> src/delta.rs:3:17
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::path::{Path, PathBuf};
[INFO] [stderr]   |                 ^^^^  ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::process::exit`
[INFO] [stderr]  --> src/delta.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::process::exit;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `utils::*`
[INFO] [stderr]  --> src/dockerfile.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use utils::*;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `yaml_rust::YamlLoader`
[INFO] [stderr]  --> src/dockerfile.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use yaml_rust::YamlLoader;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/utils.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `repo`
[INFO] [stderr]  --> src/delta.rs:7:29
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn process_delta<'repo>(repo: &'repo Repository,
[INFO] [stderr]   |                             ^^^^ help: consider prefixing with an underscore: `_repo`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `current_delta`
[INFO] [stderr]  --> src/delta.rs:8:29
[INFO] [stderr]   |
[INFO] [stderr] 8 |                             current_delta: &'repo DiffDelta,
[INFO] [stderr]   |                             ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_current_delta`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `all_deltas`
[INFO] [stderr]  --> src/delta.rs:9:29
[INFO] [stderr]   |
[INFO] [stderr] 9 |                             all_deltas: &Vec<DiffDelta>,
[INFO] [stderr]   |                             ^^^^^^^^^^ help: consider prefixing with an underscore: `_all_deltas`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `config`
[INFO] [stderr]   --> src/delta.rs:10:29
[INFO] [stderr]    |
[INFO] [stderr] 10 |                             config: &Config) {}
[INFO] [stderr]    |                             ^^^^^^ help: consider prefixing with an underscore: `_config`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `path`
[INFO] [stderr]  --> src/dockerfile.rs:6:30
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn try_read_compose_file(path: &Path) -> Result<DComposeFile, Option<Output>> {
[INFO] [stderr]   |                              ^^^^ help: consider prefixing with an underscore: `_path`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `try_read_compose_file`
[INFO] [stderr]  --> src/dockerfile.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn try_read_compose_file(path: &Path) -> Result<DComposeFile, Option<Output>> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `DComposeFile`
[INFO] [stderr]   --> src/dockerfile.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct DComposeFile<'a> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/dockerfile.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn new(path: &'a Path, services: Vec<DCService<'a>>) -> DComposeFile<'a> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `DCService`
[INFO] [stderr]   --> src/dockerfile.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub struct DCService<'a> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/dockerfile.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn new(name: &'a str, docker_file: Option<&'a Path>) -> DCService<'a> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.44s
[INFO] running `"docker" "inspect" "3c7736493c458538542d11090a783956686883973e9cb979db912e6a937f30f6"`
[INFO] running `"docker" "rm" "-f" "3c7736493c458538542d11090a783956686883973e9cb979db912e6a937f30f6"`
[INFO] [stdout] 3c7736493c458538542d11090a783956686883973e9cb979db912e6a937f30f6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/vemilyus/virtuoso:/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] eb26904f441f4440b713f5b7e6cbf33680ce00daba10fb7946443845d9d5de09
[INFO] running `"docker" "start" "-a" "eb26904f441f4440b713f5b7e6cbf33680ce00daba10fb7946443845d9d5de09"`
[INFO] [stderr]    Compiling virtuoso v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `PathBuf`, `Path`
[INFO] [stderr]  --> src/delta.rs:3:17
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::path::{Path, PathBuf};
[INFO] [stderr]   |                 ^^^^  ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::process::exit`
[INFO] [stderr]  --> src/delta.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::process::exit;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `utils::*`
[INFO] [stderr]  --> src/dockerfile.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use utils::*;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `yaml_rust::YamlLoader`
[INFO] [stderr]  --> src/dockerfile.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use yaml_rust::YamlLoader;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/utils.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `repo`
[INFO] [stderr]  --> src/delta.rs:7:29
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn process_delta<'repo>(repo: &'repo Repository,
[INFO] [stderr]   |                             ^^^^ help: consider prefixing with an underscore: `_repo`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `current_delta`
[INFO] [stderr]  --> src/delta.rs:8:29
[INFO] [stderr]   |
[INFO] [stderr] 8 |                             current_delta: &'repo DiffDelta,
[INFO] [stderr]   |                             ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_current_delta`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `all_deltas`
[INFO] [stderr]  --> src/delta.rs:9:29
[INFO] [stderr]   |
[INFO] [stderr] 9 |                             all_deltas: &Vec<DiffDelta>,
[INFO] [stderr]   |                             ^^^^^^^^^^ help: consider prefixing with an underscore: `_all_deltas`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `config`
[INFO] [stderr]   --> src/delta.rs:10:29
[INFO] [stderr]    |
[INFO] [stderr] 10 |                             config: &Config) {}
[INFO] [stderr]    |                             ^^^^^^ help: consider prefixing with an underscore: `_config`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `path`
[INFO] [stderr]  --> src/dockerfile.rs:6:30
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn try_read_compose_file(path: &Path) -> Result<DComposeFile, Option<Output>> {
[INFO] [stderr]   |                              ^^^^ help: consider prefixing with an underscore: `_path`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `try_read_compose_file`
[INFO] [stderr]  --> src/dockerfile.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn try_read_compose_file(path: &Path) -> Result<DComposeFile, Option<Output>> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `DComposeFile`
[INFO] [stderr]   --> src/dockerfile.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct DComposeFile<'a> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/dockerfile.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn new(path: &'a Path, services: Vec<DCService<'a>>) -> DComposeFile<'a> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `DCService`
[INFO] [stderr]   --> src/dockerfile.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub struct DCService<'a> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/dockerfile.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn new(name: &'a str, docker_file: Option<&'a Path>) -> DCService<'a> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `"docker" "inspect" "eb26904f441f4440b713f5b7e6cbf33680ce00daba10fb7946443845d9d5de09"`
[INFO] running `"docker" "rm" "-f" "eb26904f441f4440b713f5b7e6cbf33680ce00daba10fb7946443845d9d5de09"`
[INFO] [stdout] eb26904f441f4440b713f5b7e6cbf33680ce00daba10fb7946443845d9d5de09
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/vemilyus/virtuoso:/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] 772c71d1d9f9c0c5753879abab6bf961898ec764810f918a257189292e1bf275
[INFO] running `"docker" "start" "-a" "772c71d1d9f9c0c5753879abab6bf961898ec764810f918a257189292e1bf275"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/virtuoso-04204bf7dc4f7210
[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" "772c71d1d9f9c0c5753879abab6bf961898ec764810f918a257189292e1bf275"`
[INFO] running `"docker" "rm" "-f" "772c71d1d9f9c0c5753879abab6bf961898ec764810f918a257189292e1bf275"`
[INFO] [stdout] 772c71d1d9f9c0c5753879abab6bf961898ec764810f918a257189292e1bf275