[INFO] crate suppositions 0.1.4 is already in cache [INFO] extracting crate suppositions 0.1.4 into work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/reg/suppositions/0.1.4 [INFO] extracting crate suppositions 0.1.4 into work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/reg/suppositions/0.1.4 [INFO] validating manifest of suppositions-0.1.4 on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of suppositions-0.1.4 on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing suppositions-0.1.4 [INFO] finished frobbing suppositions-0.1.4 [INFO] frobbed toml for suppositions-0.1.4 written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/reg/suppositions/0.1.4/Cargo.toml [INFO] started frobbing suppositions-0.1.4 [INFO] finished frobbing suppositions-0.1.4 [INFO] frobbed toml for suppositions-0.1.4 written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/reg/suppositions/0.1.4/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking suppositions-0.1.4 against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-4/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/reg/suppositions/0.1.4:/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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] d0fd7d5f73550d62b7b88370bac97f7a70bdc0fb86556a2c7ef9f6b34c649537 [INFO] running `"docker" "start" "-a" "d0fd7d5f73550d62b7b88370bac97f7a70bdc0fb86556a2c7ef9f6b34c649537"` [INFO] [stderr] Checking hex-slice v0.1.4 [INFO] [stderr] Checking suppositions v0.1.4 (/opt/crater/workdir) [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> tests/smoketest.rs:57:14 [INFO] [stderr] | [INFO] [stderr] 57 | property((booleans())).check(|_| false) [INFO] [stderr] | ^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_parens)] on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> tests/smoketest.rs:62:14 [INFO] [stderr] | [INFO] [stderr] 62 | property((booleans())).check(|_| true) [INFO] [stderr] | ^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> tests/smoketest.rs:77:14 [INFO] [stderr] | [INFO] [stderr] 77 | property((booleans())).check(|_| -> Result<(), ()> { Err(()) }) [INFO] [stderr] | ^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> tests/smoketest.rs:83:14 [INFO] [stderr] | [INFO] [stderr] 83 | property((booleans())).check(|_| -> Result<(), &'static str> { Err("horrible failure") }) [INFO] [stderr] | ^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> tests/smoketest.rs:89:14 [INFO] [stderr] | [INFO] [stderr] 89 | property((booleans())).check(|_| -> Result<(), ()> { Ok(()) }) [INFO] [stderr] | ^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> tests/smoketest.rs:95:14 [INFO] [stderr] | [INFO] [stderr] 95 | property((booleans())).check(|_| -> () { panic!("Big bad boom") }) [INFO] [stderr] | ^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> tests/smoketest.rs:101:14 [INFO] [stderr] | [INFO] [stderr] 101 | property((booleans())).check(|_| -> () { panic!("Big bad boom") }) [INFO] [stderr] | ^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.04s [INFO] running `"docker" "inspect" "d0fd7d5f73550d62b7b88370bac97f7a70bdc0fb86556a2c7ef9f6b34c649537"` [INFO] running `"docker" "rm" "-f" "d0fd7d5f73550d62b7b88370bac97f7a70bdc0fb86556a2c7ef9f6b34c649537"` [INFO] [stdout] d0fd7d5f73550d62b7b88370bac97f7a70bdc0fb86556a2c7ef9f6b34c649537