[INFO] updating cached repository fdb/rustcarver [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/fdb/rustcarver [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/fdb/rustcarver" "work/ex/beta-1.38-1/sources/1.37.0/gh/fdb/rustcarver"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/fdb/rustcarver'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/fdb/rustcarver" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fdb/rustcarver"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fdb/rustcarver'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] e231944d03f5507c5ca417de5685bfb826afed3a [INFO] sha for GitHub repo fdb/rustcarver: e231944d03f5507c5ca417de5685bfb826afed3a [INFO] validating manifest of fdb/rustcarver 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 fdb/rustcarver 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 fdb/rustcarver [INFO] finished frobbing fdb/rustcarver [INFO] frobbed toml for fdb/rustcarver written to work/ex/beta-1.38-1/sources/1.37.0/gh/fdb/rustcarver/Cargo.toml [INFO] started frobbing fdb/rustcarver [INFO] finished frobbing fdb/rustcarver [INFO] frobbed toml for fdb/rustcarver written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fdb/rustcarver/Cargo.toml [INFO] crate fdb/rustcarver 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 fdb/rustcarver 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-3/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/fdb/rustcarver:/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] 9afc459a6f98b4499dee104f6a5973a57577161e582fe45294bca765a04e8441 [INFO] running `"docker" "start" "-a" "9afc459a6f98b4499dee104f6a5973a57577161e582fe45294bca765a04e8441"` [INFO] [stderr] Compiling libc v0.2.47 [INFO] [stderr] Compiling same-file v1.0.4 [INFO] [stderr] Compiling walkdir v2.2.7 [INFO] [stderr] Compiling dirs v1.0.4 [INFO] [stderr] Compiling rustcarver v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `home_dir` [INFO] [stderr] --> src/main.rs:16:9 [INFO] [stderr] | [INFO] [stderr] 16 | let home_dir = dirs::home_dir().unwrap(); [INFO] [stderr] | ^^^^^^^^ help: consider prefixing with an underscore: `_home_dir` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 5.35s [INFO] running `"docker" "inspect" "9afc459a6f98b4499dee104f6a5973a57577161e582fe45294bca765a04e8441"` [INFO] running `"docker" "rm" "-f" "9afc459a6f98b4499dee104f6a5973a57577161e582fe45294bca765a04e8441"` [INFO] [stdout] 9afc459a6f98b4499dee104f6a5973a57577161e582fe45294bca765a04e8441 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/fdb/rustcarver:/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] 9f799438625efd6af29dc1ee9a2da9534b68c1d82d30aef56206c2d23d8cc20b [INFO] running `"docker" "start" "-a" "9f799438625efd6af29dc1ee9a2da9534b68c1d82d30aef56206c2d23d8cc20b"` [INFO] [stderr] Compiling rustcarver v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `home_dir` [INFO] [stderr] --> src/main.rs:16:9 [INFO] [stderr] | [INFO] [stderr] 16 | let home_dir = dirs::home_dir().unwrap(); [INFO] [stderr] | ^^^^^^^^ help: consider prefixing with an underscore: `_home_dir` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.72s [INFO] running `"docker" "inspect" "9f799438625efd6af29dc1ee9a2da9534b68c1d82d30aef56206c2d23d8cc20b"` [INFO] running `"docker" "rm" "-f" "9f799438625efd6af29dc1ee9a2da9534b68c1d82d30aef56206c2d23d8cc20b"` [INFO] [stdout] 9f799438625efd6af29dc1ee9a2da9534b68c1d82d30aef56206c2d23d8cc20b [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/fdb/rustcarver:/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] 7f3f4dcdca87120bc504493f0137989e9d72eb710fac07315f23cb37cae5ccb1 [INFO] running `"docker" "start" "-a" "7f3f4dcdca87120bc504493f0137989e9d72eb710fac07315f23cb37cae5ccb1"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stderr] Running /opt/crater/target/debug/deps/rustcarver-f925a7c70e5b7dfc [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" "7f3f4dcdca87120bc504493f0137989e9d72eb710fac07315f23cb37cae5ccb1"` [INFO] running `"docker" "rm" "-f" "7f3f4dcdca87120bc504493f0137989e9d72eb710fac07315f23cb37cae5ccb1"` [INFO] [stdout] 7f3f4dcdca87120bc504493f0137989e9d72eb710fac07315f23cb37cae5ccb1