[INFO] crate loom 0.1.1 is already in cache [INFO] extracting crate loom 0.1.1 into work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/loom/0.1.1 [INFO] extracting crate loom 0.1.1 into work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/loom/0.1.1 [INFO] validating manifest of loom-0.1.1 on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of loom-0.1.1 on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "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/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/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/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/loom/0.1.1/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] checking loom-0.1.1 against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-2/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/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=forbid" "-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" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 410e244abe79a3254f6253cb2102028608f19d10fecbf38021814c553f4ccc1e [INFO] running `"docker" "start" "-a" "410e244abe79a3254f6253cb2102028608f19d10fecbf38021814c553f4ccc1e"` [INFO] [stderr] Checking 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] error: 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: #[deny(bare_trait_objects)] implied by #[deny(warnings)] [INFO] [stderr] [INFO] [stderr] error: 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] error: 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] error: 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] error: aborting due to 4 previous errors [INFO] [stderr] [INFO] [stderr] error: Could not compile `loom`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [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] error: build failed [INFO] running `"docker" "inspect" "410e244abe79a3254f6253cb2102028608f19d10fecbf38021814c553f4ccc1e"` [INFO] running `"docker" "rm" "-f" "410e244abe79a3254f6253cb2102028608f19d10fecbf38021814c553f4ccc1e"` [INFO] [stdout] 410e244abe79a3254f6253cb2102028608f19d10fecbf38021814c553f4ccc1e