[INFO] updating cached repository dewaka/chainmap [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/dewaka/chainmap [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/dewaka/chainmap" "work/ex/beta-1.38-1/sources/1.37.0/gh/dewaka/chainmap"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/dewaka/chainmap'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/dewaka/chainmap" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dewaka/chainmap"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dewaka/chainmap'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 9387f660b4bf73ef1ee5bb806f0b9c1effaa7306 [INFO] sha for GitHub repo dewaka/chainmap: 9387f660b4bf73ef1ee5bb806f0b9c1effaa7306 [INFO] validating manifest of dewaka/chainmap 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 dewaka/chainmap 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 dewaka/chainmap [INFO] finished frobbing dewaka/chainmap [INFO] frobbed toml for dewaka/chainmap written to work/ex/beta-1.38-1/sources/1.37.0/gh/dewaka/chainmap/Cargo.toml [INFO] started frobbing dewaka/chainmap [INFO] finished frobbing dewaka/chainmap [INFO] frobbed toml for dewaka/chainmap written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dewaka/chainmap/Cargo.toml [INFO] crate dewaka/chainmap 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 dewaka/chainmap 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/dewaka/chainmap:/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] e7d0d68727afbad60bd7f0aa82238eadca4042cea1fc19620f455c2ec8049ed9 [INFO] running `"docker" "start" "-a" "e7d0d68727afbad60bd7f0aa82238eadca4042cea1fc19620f455c2ec8049ed9"` [INFO] [stderr] Compiling chainmap v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/example.rs:16:9 [INFO] [stderr] | [INFO] [stderr] 16 | let mut clothing = HashMap::new(); [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: method is never used: `insert` [INFO] [stderr] --> src/lib.rs:27:5 [INFO] [stderr] | [INFO] [stderr] 27 | pub fn insert(&mut self, k: K, v: V) -> Option { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_empty` [INFO] [stderr] --> src/lib.rs:36:5 [INFO] [stderr] | [INFO] [stderr] 36 | pub fn is_empty(&self) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `empty` [INFO] [stderr] --> src/lib.rs:51:5 [INFO] [stderr] | [INFO] [stderr] 51 | pub fn empty() -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `add_map` [INFO] [stderr] --> src/lib.rs:56:5 [INFO] [stderr] | [INFO] [stderr] 56 | pub fn add_map(&mut self, m: ChainMapType) -> &mut Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `to_map` [INFO] [stderr] --> src/lib.rs:64:5 [INFO] [stderr] | [INFO] [stderr] 64 | pub fn to_map(&self) -> ChainMapType { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `parents` [INFO] [stderr] --> src/lib.rs:78:5 [INFO] [stderr] | [INFO] [stderr] 78 | pub fn parents(&self) -> Option { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `children` [INFO] [stderr] --> src/lib.rs:89:5 [INFO] [stderr] | [INFO] [stderr] 89 | pub fn children(&self) -> Option { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.72s [INFO] running `"docker" "inspect" "e7d0d68727afbad60bd7f0aa82238eadca4042cea1fc19620f455c2ec8049ed9"` [INFO] running `"docker" "rm" "-f" "e7d0d68727afbad60bd7f0aa82238eadca4042cea1fc19620f455c2ec8049ed9"` [INFO] [stdout] e7d0d68727afbad60bd7f0aa82238eadca4042cea1fc19620f455c2ec8049ed9 [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/dewaka/chainmap:/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] 228a3d301bfc3f27db3b8205af6bbff5d7de0f4c7bcb64481bbe8597f9d7157f [INFO] running `"docker" "start" "-a" "228a3d301bfc3f27db3b8205af6bbff5d7de0f4c7bcb64481bbe8597f9d7157f"` [INFO] [stderr] Compiling chainmap v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/example.rs:16:9 [INFO] [stderr] | [INFO] [stderr] 16 | let mut clothing = HashMap::new(); [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] Finished dev [unoptimized + debuginfo] target(s) in 1.08s [INFO] running `"docker" "inspect" "228a3d301bfc3f27db3b8205af6bbff5d7de0f4c7bcb64481bbe8597f9d7157f"` [INFO] running `"docker" "rm" "-f" "228a3d301bfc3f27db3b8205af6bbff5d7de0f4c7bcb64481bbe8597f9d7157f"` [INFO] [stdout] 228a3d301bfc3f27db3b8205af6bbff5d7de0f4c7bcb64481bbe8597f9d7157f [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/dewaka/chainmap:/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] c22d5e21b4d4697c395b837d238744e6bcac00e2425811637a868cddb950d9cd [INFO] running `"docker" "start" "-a" "c22d5e21b4d4697c395b837d238744e6bcac00e2425811637a868cddb950d9cd"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running /opt/crater/target/debug/deps/chainmap-cf6b24372aaff237 [INFO] [stdout] [INFO] [stdout] running 7 tests [INFO] [stdout] test tests::test_chainmap_empty ... ok [INFO] [stdout] test tests::test_chainmap_add_map ... ok [INFO] [stdout] test tests::test_chainmap_get ... ok [INFO] [stdout] test tests::test_chainmap_children ... ok [INFO] [stdout] test tests::test_chainmap_insert ... ok [INFO] [stdout] test tests::test_chainmap_parents ... ok [INFO] [stdout] test tests::test_chainmap_to_map ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/chainmap_example-418cc32a8ade9334 [INFO] [stdout] [INFO] [stdout] running 7 tests [INFO] [stdout] test lib::tests::test_chainmap_add_map ... ok [INFO] [stdout] test lib::tests::test_chainmap_empty ... ok [INFO] [stdout] test lib::tests::test_chainmap_children ... ok [INFO] [stdout] test lib::tests::test_chainmap_get ... ok [INFO] [stdout] test lib::tests::test_chainmap_insert ... ok [INFO] [stdout] test lib::tests::test_chainmap_to_map ... ok [INFO] [stdout] test lib::tests::test_chainmap_parents ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Doc-tests chainmap [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" "c22d5e21b4d4697c395b837d238744e6bcac00e2425811637a868cddb950d9cd"` [INFO] running `"docker" "rm" "-f" "c22d5e21b4d4697c395b837d238744e6bcac00e2425811637a868cddb950d9cd"` [INFO] [stdout] c22d5e21b4d4697c395b837d238744e6bcac00e2425811637a868cddb950d9cd