[INFO] updating cached repository mitchhentges/lcov-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mitchhentges/lcov-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mitchhentges/lcov-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/mitchhentges/lcov-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mitchhentges/lcov-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mitchhentges/lcov-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mitchhentges/lcov-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mitchhentges/lcov-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 91156db347a6c35ecfb789db8672f1d0baae9df2
[INFO] sha for GitHub repo mitchhentges/lcov-rs: 91156db347a6c35ecfb789db8672f1d0baae9df2
[INFO] validating manifest of mitchhentges/lcov-rs 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 mitchhentges/lcov-rs 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 mitchhentges/lcov-rs
[INFO] finished frobbing mitchhentges/lcov-rs
[INFO] frobbed toml for mitchhentges/lcov-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/mitchhentges/lcov-rs/Cargo.toml
[INFO] started frobbing mitchhentges/lcov-rs
[INFO] finished frobbing mitchhentges/lcov-rs
[INFO] frobbed toml for mitchhentges/lcov-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mitchhentges/lcov-rs/Cargo.toml
[INFO] crate mitchhentges/lcov-rs 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing mitchhentges/lcov-rs against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mitchhentges/lcov-rs:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 0b56a599912fa3434333ea9ae3a739ca687341fd72925b6f4ae4f7b879bfbde9
[INFO] running `"docker" "start" "-a" "0b56a599912fa3434333ea9ae3a739ca687341fd72925b6f4ae4f7b879bfbde9"`
[INFO] [stderr]    Compiling lcov-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `tmp_output_path`
[INFO] [stderr]    --> src/main.rs:148:31
[INFO] [stderr]     |
[INFO] [stderr] 148 | fn read_gcda(gcda_path: &str, tmp_output_path: &str) {
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_tmp_output_path`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `ARC_ON_TREE`
[INFO] [stderr]   --> src/main.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | const ARC_ON_TREE: u32 = 1 << 0;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_on_tree`
[INFO] [stderr]    --> src/main.rs:412:5
[INFO] [stderr]     |
[INFO] [stderr] 412 |     fn is_on_tree(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.57s
[INFO] running `"docker" "inspect" "0b56a599912fa3434333ea9ae3a739ca687341fd72925b6f4ae4f7b879bfbde9"`
[INFO] running `"docker" "rm" "-f" "0b56a599912fa3434333ea9ae3a739ca687341fd72925b6f4ae4f7b879bfbde9"`
[INFO] [stdout] 0b56a599912fa3434333ea9ae3a739ca687341fd72925b6f4ae4f7b879bfbde9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mitchhentges/lcov-rs:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 04819937bd17b59e2084587cc38febf76e226b24b6798d81b7cc690e50de4bdc
[INFO] running `"docker" "start" "-a" "04819937bd17b59e2084587cc38febf76e226b24b6798d81b7cc690e50de4bdc"`
[INFO] [stderr]    Compiling lcov-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `tmp_output_path`
[INFO] [stderr]    --> src/main.rs:148:31
[INFO] [stderr]     |
[INFO] [stderr] 148 | fn read_gcda(gcda_path: &str, tmp_output_path: &str) {
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_tmp_output_path`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `ARC_ON_TREE`
[INFO] [stderr]   --> src/main.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | const ARC_ON_TREE: u32 = 1 << 0;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_on_tree`
[INFO] [stderr]    --> src/main.rs:412:5
[INFO] [stderr]     |
[INFO] [stderr] 412 |     fn is_on_tree(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `"docker" "inspect" "04819937bd17b59e2084587cc38febf76e226b24b6798d81b7cc690e50de4bdc"`
[INFO] running `"docker" "rm" "-f" "04819937bd17b59e2084587cc38febf76e226b24b6798d81b7cc690e50de4bdc"`
[INFO] [stdout] 04819937bd17b59e2084587cc38febf76e226b24b6798d81b7cc690e50de4bdc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mitchhentges/lcov-rs:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 925314b8368db20d0fb40ee7965c163ac9567745061d3e0b412894c3e4400919
[INFO] running `"docker" "start" "-a" "925314b8368db20d0fb40ee7965c163ac9567745061d3e0b412894c3e4400919"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lcov_rs-7f0159cb5fb21bd8
[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" "925314b8368db20d0fb40ee7965c163ac9567745061d3e0b412894c3e4400919"`
[INFO] running `"docker" "rm" "-f" "925314b8368db20d0fb40ee7965c163ac9567745061d3e0b412894c3e4400919"`
[INFO] [stdout] 925314b8368db20d0fb40ee7965c163ac9567745061d3e0b412894c3e4400919