[INFO] crate urchin 0.1.1 is already in cache [INFO] extracting crate urchin 0.1.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/urchin/0.1.1 [INFO] extracting crate urchin 0.1.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/urchin/0.1.1 [INFO] validating manifest of urchin-0.1.1 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 urchin-0.1.1 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 urchin-0.1.1 [INFO] finished frobbing urchin-0.1.1 [INFO] frobbed toml for urchin-0.1.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/urchin/0.1.1/Cargo.toml [INFO] started frobbing urchin-0.1.1 [INFO] finished frobbing urchin-0.1.1 [INFO] frobbed toml for urchin-0.1.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/urchin/0.1.1/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [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 urchin-0.1.1 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-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/urchin/0.1.1:/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] 6ac80de92e41da90942e532fa2bfa24c001e42bb97f5ca786d3a12d91d8a7af5 [INFO] running `"docker" "start" "-a" "6ac80de92e41da90942e532fa2bfa24c001e42bb97f5ca786d3a12d91d8a7af5"` [INFO] [stderr] Compiling urchin v0.1.1 (/opt/crater/workdir) [INFO] [stderr] warning: enum is never used: `FutureState` [INFO] [stderr] --> src/future.rs:6:1 [INFO] [stderr] | [INFO] [stderr] 6 | enum FutureState { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `FutureInner` [INFO] [stderr] --> src/future.rs:13:1 [INFO] [stderr] | [INFO] [stderr] 13 | pub struct FutureInner { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `promised` [INFO] [stderr] --> src/future.rs:18:5 [INFO] [stderr] | [INFO] [stderr] 18 | fn promised() -> FutureInner { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `from_val` [INFO] [stderr] --> src/future.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | fn from_val(val: T) -> FutureInner { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `from_err` [INFO] [stderr] --> src/future.rs:30:5 [INFO] [stderr] | [INFO] [stderr] 30 | fn from_err(err: E) -> FutureInner { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `unwrap` [INFO] [stderr] --> src/future.rs:36:5 [INFO] [stderr] | [INFO] [stderr] 36 | fn unwrap(self) -> T { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `unwrap_err` [INFO] [stderr] --> src/future.rs:43:5 [INFO] [stderr] | [INFO] [stderr] 43 | fn unwrap_err(self) -> E { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `expect` [INFO] [stderr] --> src/future.rs:50:5 [INFO] [stderr] | [INFO] [stderr] 50 | fn expect(self, _msg: &str) -> T { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_promised` [INFO] [stderr] --> src/future.rs:57:5 [INFO] [stderr] | [INFO] [stderr] 57 | fn is_promised(&self) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_err` [INFO] [stderr] --> src/future.rs:64:5 [INFO] [stderr] | [INFO] [stderr] 64 | fn is_err(&self) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_ok` [INFO] [stderr] --> src/future.rs:71:5 [INFO] [stderr] | [INFO] [stderr] 71 | fn is_ok(&self) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `ok` [INFO] [stderr] --> src/future.rs:78:5 [INFO] [stderr] | [INFO] [stderr] 78 | fn ok(self) -> Option { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `err` [INFO] [stderr] --> src/future.rs:85:5 [INFO] [stderr] | [INFO] [stderr] 85 | fn err(self) -> Option { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `set_ok` [INFO] [stderr] --> src/future.rs:92:5 [INFO] [stderr] | [INFO] [stderr] 92 | fn set_ok(&mut self, val: T) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `set_err` [INFO] [stderr] --> src/future.rs:97:5 [INFO] [stderr] | [INFO] [stderr] 97 | fn set_err(&mut self, err: E) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Future` [INFO] [stderr] --> src/future.rs:104:1 [INFO] [stderr] | [INFO] [stderr] 104 | pub struct Future { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `promised` [INFO] [stderr] --> src/future.rs:112:5 [INFO] [stderr] | [INFO] [stderr] 112 | pub fn promised() -> (Future, Promise) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `from_val` [INFO] [stderr] --> src/future.rs:119:5 [INFO] [stderr] | [INFO] [stderr] 119 | pub fn from_val(val: T) -> Future { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `from_err` [INFO] [stderr] --> src/future.rs:124:5 [INFO] [stderr] | [INFO] [stderr] 124 | pub fn from_err(err: E) -> Future { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/future.rs:128:5 [INFO] [stderr] | [INFO] [stderr] 128 | fn new(inner: Rc>>) -> Future { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_promised` [INFO] [stderr] --> src/future.rs:135:5 [INFO] [stderr] | [INFO] [stderr] 135 | pub fn is_promised(&self) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_ok` [INFO] [stderr] --> src/future.rs:141:5 [INFO] [stderr] | [INFO] [stderr] 141 | pub fn is_ok(&self) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_err` [INFO] [stderr] --> src/future.rs:146:5 [INFO] [stderr] | [INFO] [stderr] 146 | pub fn is_err(&self) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `err` [INFO] [stderr] --> src/future.rs:152:5 [INFO] [stderr] | [INFO] [stderr] 152 | pub fn err(self) -> Option { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `ok` [INFO] [stderr] --> src/future.rs:160:5 [INFO] [stderr] | [INFO] [stderr] 160 | pub fn ok(self) -> Option { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `unwrap_err` [INFO] [stderr] --> src/future.rs:169:5 [INFO] [stderr] | [INFO] [stderr] 169 | pub fn unwrap_err(self) -> E { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `unwrap` [INFO] [stderr] --> src/future.rs:177:5 [INFO] [stderr] | [INFO] [stderr] 177 | pub fn unwrap(self) -> T { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Promise` [INFO] [stderr] --> src/future.rs:188:1 [INFO] [stderr] | [INFO] [stderr] 188 | pub struct Promise { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/future.rs:195:5 [INFO] [stderr] | [INFO] [stderr] 195 | fn new(inner: Rc>>) -> Promise { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `resolve` [INFO] [stderr] --> src/future.rs:201:5 [INFO] [stderr] | [INFO] [stderr] 201 | pub fn resolve(self, res: Result) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.48s [INFO] running `"docker" "inspect" "6ac80de92e41da90942e532fa2bfa24c001e42bb97f5ca786d3a12d91d8a7af5"` [INFO] running `"docker" "rm" "-f" "6ac80de92e41da90942e532fa2bfa24c001e42bb97f5ca786d3a12d91d8a7af5"` [INFO] [stdout] 6ac80de92e41da90942e532fa2bfa24c001e42bb97f5ca786d3a12d91d8a7af5 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/urchin/0.1.1:/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] b7f22761e73d83f3198b93868db16c03cd139de58d39f86589008242724666d1 [INFO] running `"docker" "start" "-a" "b7f22761e73d83f3198b93868db16c03cd139de58d39f86589008242724666d1"` [INFO] [stderr] Compiling urchin v0.1.1 (/opt/crater/workdir) [INFO] [stderr] warning: method is never used: `expect` [INFO] [stderr] --> src/future.rs:50:5 [INFO] [stderr] | [INFO] [stderr] 50 | fn expect(self, _msg: &str) -> T { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.18s [INFO] running `"docker" "inspect" "b7f22761e73d83f3198b93868db16c03cd139de58d39f86589008242724666d1"` [INFO] running `"docker" "rm" "-f" "b7f22761e73d83f3198b93868db16c03cd139de58d39f86589008242724666d1"` [INFO] [stdout] b7f22761e73d83f3198b93868db16c03cd139de58d39f86589008242724666d1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/urchin/0.1.1:/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] 6f05d6af86941329b784218e0ddee626b135560350c6d5280ccf718fcefd388c [INFO] running `"docker" "start" "-a" "6f05d6af86941329b784218e0ddee626b135560350c6d5280ccf718fcefd388c"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running /opt/crater/target/debug/deps/urchin-0f217377c6664609 [INFO] [stdout] [INFO] [stdout] running 10 tests [INFO] [stdout] test future::test::future_promise_err ... ok [INFO] [stdout] test future::test::future_err ... ok [INFO] [stdout] test future::test::future_ok ... ok [INFO] [stdout] test future::test::future_promise_ok ... ok [INFO] [stdout] test future::test::future_unwrap_err ... ok [INFO] [stdout] test future::test::future_unwrap ... ok [INFO] [stdout] test future::test::future_promised_unwrap_err ... ok [INFO] [stdout] test future::test::future_promised_unwrap ... ok [INFO] [stdout] test future::test::future_ok_unwrap_err ... ok [INFO] [stdout] test future::test::future_err_unwrap ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Doc-tests urchin [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" "6f05d6af86941329b784218e0ddee626b135560350c6d5280ccf718fcefd388c"` [INFO] running `"docker" "rm" "-f" "6f05d6af86941329b784218e0ddee626b135560350c6d5280ccf718fcefd388c"` [INFO] [stdout] 6f05d6af86941329b784218e0ddee626b135560350c6d5280ccf718fcefd388c