[INFO] crate loom 0.1.1 is already in cache [INFO] extracting crate loom 0.1.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/loom/0.1.1 [INFO] extracting crate loom 0.1.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/loom/0.1.1 [INFO] validating manifest of loom-0.1.1 on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of loom-0.1.1 on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing loom-0.1.1 [INFO] finished frobbing loom-0.1.1 [INFO] frobbed toml for loom-0.1.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/loom/0.1.1/Cargo.toml [INFO] started frobbing loom-0.1.1 [INFO] finished frobbing loom-0.1.1 [INFO] frobbed toml for loom-0.1.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/loom/0.1.1/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing loom-0.1.1 against beta-2019-07-23 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/loom/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-2019-07-23" "build" "--frozen"` [INFO] [stdout] 5a1cea83901069cef428321b7c92df3cba91ce9ce7a296623fdf400d76d176ca [INFO] running `"docker" "start" "-a" "5a1cea83901069cef428321b7c92df3cba91ce9ce7a296623fdf400d76d176ca"` [INFO] [stderr] Compiling loom v0.1.1 (/opt/crater/workdir) [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/rt/object.rs:105:16 [INFO] [stderr] | [INFO] [stderr] 105 | -> Box + 'a> [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator + 'a` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(bare_trait_objects)] on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/rt/scheduler/stub.rs:19:25 [INFO] [stderr] | [INFO] [stderr] 19 | pub fn spawn(_: Box) { [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn FnBox` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/rt/scheduler/mod.rs:76:25 [INFO] [stderr] | [INFO] [stderr] 76 | pub fn spawn(f: Box) { [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn FnBox` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/rt/thread.rs:225:46 [INFO] [stderr] | [INFO] [stderr] 225 | pub fn iter_mut<'a>(&'a mut self) -> Box + 'a> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator + 'a` [INFO] [stderr] [INFO] [stderr] warning[E0381]: use of possibly uninitialized variable: `_` [INFO] [stderr] --> src/rt/scheduler/std.rs:238:13 [INFO] [stderr] | [INFO] [stderr] 238 | / loop { [INFO] [stderr] 239 | | match *th { [INFO] [stderr] 240 | | Idle => { [INFO] [stderr] 241 | | th = shared.condvars[i].wait(th).unwrap(); [INFO] [stderr] ... | [INFO] [stderr] 251 | | } [INFO] [stderr] 252 | | } [INFO] [stderr] | |_____________^ use of possibly uninitialized value [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.20s [INFO] running `"docker" "inspect" "5a1cea83901069cef428321b7c92df3cba91ce9ce7a296623fdf400d76d176ca"` [INFO] running `"docker" "rm" "-f" "5a1cea83901069cef428321b7c92df3cba91ce9ce7a296623fdf400d76d176ca"` [INFO] [stdout] 5a1cea83901069cef428321b7c92df3cba91ce9ce7a296623fdf400d76d176ca [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/loom/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-2019-07-23" "test" "--frozen" "--no-run"` [INFO] [stdout] 855bac1fa15c7e00f6e16b7b4c76db1e611c5e01951097f4d3727d1512cc2a5a [INFO] running `"docker" "start" "-a" "855bac1fa15c7e00f6e16b7b4c76db1e611c5e01951097f4d3727d1512cc2a5a"` [INFO] [stderr] Compiling loom v0.1.1 (/opt/crater/workdir) [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/rt/object.rs:105:16 [INFO] [stderr] | [INFO] [stderr] 105 | -> Box + 'a> [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator + 'a` [INFO] [stderr] | [INFO] [stderr] note: lint level defined here [INFO] [stderr] --> src/lib.rs:3:24 [INFO] [stderr] | [INFO] [stderr] 3 | #![cfg_attr(test, deny(warnings))] [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] = note: #[warn(bare_trait_objects)] implied by #[warn(warnings)] [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/rt/scheduler/stub.rs:19:25 [INFO] [stderr] | [INFO] [stderr] 19 | pub fn spawn(_: Box) { [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn FnBox` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/rt/scheduler/mod.rs:76:25 [INFO] [stderr] | [INFO] [stderr] 76 | pub fn spawn(f: Box) { [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn FnBox` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/rt/thread.rs:225:46 [INFO] [stderr] | [INFO] [stderr] 225 | pub fn iter_mut<'a>(&'a mut self) -> Box + 'a> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator + 'a` [INFO] [stderr] [INFO] [stderr] warning[E0381]: use of possibly uninitialized variable: `_` [INFO] [stderr] --> src/rt/scheduler/std.rs:238:13 [INFO] [stderr] | [INFO] [stderr] 238 | / loop { [INFO] [stderr] 239 | | match *th { [INFO] [stderr] 240 | | Idle => { [INFO] [stderr] 241 | | th = shared.condvars[i].wait(th).unwrap(); [INFO] [stderr] ... | [INFO] [stderr] 251 | | } [INFO] [stderr] 252 | | } [INFO] [stderr] | |_____________^ use of possibly uninitialized value [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.29s [INFO] running `"docker" "inspect" "855bac1fa15c7e00f6e16b7b4c76db1e611c5e01951097f4d3727d1512cc2a5a"` [INFO] running `"docker" "rm" "-f" "855bac1fa15c7e00f6e16b7b4c76db1e611c5e01951097f4d3727d1512cc2a5a"` [INFO] [stdout] 855bac1fa15c7e00f6e16b7b4c76db1e611c5e01951097f4d3727d1512cc2a5a [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/loom/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-2019-07-23" "test" "--frozen"` [INFO] [stdout] c505ce8f5eb24aef026407a9c37c8481490865594ba01d6a61216d3718501ada [INFO] running `"docker" "start" "-a" "c505ce8f5eb24aef026407a9c37c8481490865594ba01d6a61216d3718501ada"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/crater/target/debug/deps/loom-c93b032c93eb97db [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] [stderr] Running /opt/crater/target/debug/deps/atomic-77aae5a7c0799e26 [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test valid_get_mut ... ok [INFO] [stdout] test invalid_get_mut ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/causal_cell-eac931ff8d52d24f [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test thread_join_causality ... ok [INFO] [stdout] test atomic_causality_success ... ok [INFO] [stdout] test atomic_causality_fail ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/condvar-e1e14291b1af6289 [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stderr] Running /opt/crater/target/debug/deps/futures-1146167366f20a3d [INFO] [stderr] Running /opt/crater/target/debug/deps/mutex-441e6f027320ecb4 [INFO] [stdout] test fuzz_condvar ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [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] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test mutex_establishes_seq_cst ... ok [INFO] [stdout] test mutex_enforces_mutal_exclusion ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stderr] Running /opt/crater/target/debug/deps/smoke-c901d25666e0ca7f [INFO] [stdout] test fuzz_valid ... ok [INFO] [stdout] test check_ordering ... ok [INFO] [stdout] test checks_fail ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/yield-2843929cf725f922 [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test yield_completes ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Doc-tests loom [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test src/lib.rs - (line 15) ... ignored [INFO] [stdout] test src/lib.rs - (line 52) ... ignored [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "c505ce8f5eb24aef026407a9c37c8481490865594ba01d6a61216d3718501ada"` [INFO] running `"docker" "rm" "-f" "c505ce8f5eb24aef026407a9c37c8481490865594ba01d6a61216d3718501ada"` [INFO] [stdout] c505ce8f5eb24aef026407a9c37c8481490865594ba01d6a61216d3718501ada