[INFO] crate named-block 0.3.1 is already in cache
[INFO] extracting crate named-block 0.3.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/named-block/0.3.1
[INFO] extracting crate named-block 0.3.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/named-block/0.3.1
[INFO] validating manifest of named-block-0.3.1 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 named-block-0.3.1 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 named-block-0.3.1
[INFO] finished frobbing named-block-0.3.1
[INFO] frobbed toml for named-block-0.3.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/named-block/0.3.1/Cargo.toml
[INFO] started frobbing named-block-0.3.1
[INFO] finished frobbing named-block-0.3.1
[INFO] frobbed toml for named-block-0.3.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/named-block/0.3.1/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 named-block-0.3.1 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/named-block/0.3.1:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] bf38926a803bea81dfb23fbe1c13006554431a93ac0cf25ace16f32447e26fa2
[INFO] running `"docker" "start" "-a" "bf38926a803bea81dfb23fbe1c13006554431a93ac0cf25ace16f32447e26fa2"`
[INFO] [stderr]    Compiling named-block v0.3.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `"docker" "inspect" "bf38926a803bea81dfb23fbe1c13006554431a93ac0cf25ace16f32447e26fa2"`
[INFO] running `"docker" "rm" "-f" "bf38926a803bea81dfb23fbe1c13006554431a93ac0cf25ace16f32447e26fa2"`
[INFO] [stdout] bf38926a803bea81dfb23fbe1c13006554431a93ac0cf25ace16f32447e26fa2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/named-block/0.3.1:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 294fa80e58d0a946124fa487ad00b5ce46e7bb9b360b005f9fca6ff3b9f94197
[INFO] running `"docker" "start" "-a" "294fa80e58d0a946124fa487ad00b5ce46e7bb9b360b005f9fca6ff3b9f94197"`
[INFO] [stderr]    Compiling static-cond v0.1.1
[INFO] [stderr]    Compiling named-block v0.3.1 (/opt/crater/workdir)
[INFO] [stderr] warning: label name `'b` shadows a label name that is already in scope
[INFO] [stderr]    --> src/lib.rs:362:17
[INFO] [stderr]     |
[INFO] [stderr] 334 |           let x = block!('b: {
[INFO] [stderr]     |  _________________-
[INFO] [stderr] 335 | |             if flag { break 'b "early exit"; }
[INFO] [stderr] 336 | |             let _y = block!('c: {
[INFO] [stderr] 337 | |                 if flag { break 'b "inner early exit"; };
[INFO] [stderr] ...   |
[INFO] [stderr] 352 | |                 block!('b: {
[INFO] [stderr]     | |                        -- first declared here
[INFO] [stderr] ...   |
[INFO] [stderr] 362 | |                 'b: while false {
[INFO] [stderr]     | |                 ^^ lifetime 'b already in scope
[INFO] [stderr] ...   |
[INFO] [stderr] 375 | |             "normal exit"
[INFO] [stderr] 376 | |         });
[INFO] [stderr]     | |__________- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: label name `'a` shadows a label name that is already in scope
[INFO] [stderr]    --> src/lib.rs:392:31
[INFO] [stderr]     |
[INFO] [stderr] 391 |         assert_eq!(42, block!('a: loop { break 'a 42 }));
[INFO] [stderr]     |                               -- first declared here
[INFO] [stderr] 392 |         assert_eq!((), block!('a: {})); // make sure it works with no breaks
[INFO] [stderr]     |                               ^^ lifetime 'a already in scope
[INFO] [stderr] 
[INFO] [stderr] warning: label name `'a` shadows a label name that is already in scope
[INFO] [stderr]    --> src/lib.rs:396:16
[INFO] [stderr]     |
[INFO] [stderr] 391 |         assert_eq!(42, block!('a: loop { break 'a 42 }));
[INFO] [stderr]     |                               -- first declared here
[INFO] [stderr] ...
[INFO] [stderr] 396 |         block!('a: loop {
[INFO] [stderr]     |                ^^ lifetime 'a already in scope
[INFO] [stderr] 
[INFO] [stderr] warning: label name `'a` shadows a label name that is already in scope
[INFO] [stderr]    --> src/lib.rs:396:16
[INFO] [stderr]     |
[INFO] [stderr] 392 |         assert_eq!((), block!('a: {})); // make sure it works with no breaks
[INFO] [stderr]     |                               -- first declared here
[INFO] [stderr] ...
[INFO] [stderr] 396 |         block!('a: loop {
[INFO] [stderr]     |                ^^ lifetime 'a already in scope
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/lib.rs:102:21
[INFO] [stderr]     |
[INFO] [stderr] 102 | /                     $ret = $out;
[INFO] [stderr] 103 | |                     break $life;
[INFO] [stderr] 104 | |                 }
[INFO] [stderr] 105 | |                 $ret
[INFO] [stderr] ...   |
[INFO] [stderr] 134 | |     (@scan {} $life:tt $ret:ident () -> ($($out:tt)*) (() $lp:tt $init:tt)) => {
[INFO] [stderr] 135 | |         block!(@wrap $life $lp $ret $init { $($out)* })
[INFO] [stderr]     | |______________________________________________________^
[INFO] [stderr] ...
[INFO] [stderr] 334 |           let x = block!('b: {
[INFO] [stderr]     |  _________________-
[INFO] [stderr] 335 | |             if flag { break 'b "early exit"; }
[INFO] [stderr] 336 | |             let _y = block!('c: {
[INFO] [stderr] 337 | |                 if flag { break 'b "inner early exit"; };
[INFO] [stderr] ...   |
[INFO] [stderr] 375 | |             "normal exit"
[INFO] [stderr] 376 | |         });
[INFO] [stderr]     | |__________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unreachable_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/lib.rs:102:21
[INFO] [stderr]     |
[INFO] [stderr] 102 | /                     $ret = $out;
[INFO] [stderr] 103 | |                     break $life;
[INFO] [stderr] 104 | |                 }
[INFO] [stderr] 105 | |                 $ret
[INFO] [stderr] ...   |
[INFO] [stderr] 134 | |     (@scan {} $life:tt $ret:ident () -> ($($out:tt)*) (() $lp:tt $init:tt)) => {
[INFO] [stderr] 135 | |         block!(@wrap $life $lp $ret $init { $($out)* })
[INFO] [stderr]     | |______________________________________________________^
[INFO] [stderr] ...
[INFO] [stderr] 381 | /             block!('d: {
[INFO] [stderr] 382 | |                 //continue; //~ERROR NoBareContinueInNamedBlock
[INFO] [stderr] 383 | |                 //continue 'd; //~ERROR NoMatchedContinueInNamedBlock
[INFO] [stderr] 384 | |                 continue 'e;
[INFO] [stderr] 385 | |             });
[INFO] [stderr]     | |_______________- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/lib.rs:102:21
[INFO] [stderr]     |
[INFO] [stderr] 102 | /                     $ret = $out;
[INFO] [stderr] 103 | |                     break $life;
[INFO] [stderr] 104 | |                 }
[INFO] [stderr] 105 | |                 $ret
[INFO] [stderr] ...   |
[INFO] [stderr] 134 | |     (@scan {} $life:tt $ret:ident () -> ($($out:tt)*) (() $lp:tt $init:tt)) => {
[INFO] [stderr] 135 | |         block!(@wrap $life $lp $ret $init { $($out)* })
[INFO] [stderr]     | |______________________________________________________^
[INFO] [stderr] ...
[INFO] [stderr] 334 |           let x = block!('b: {
[INFO] [stderr]     |  _________________-
[INFO] [stderr] 335 | |             if flag { break 'b "early exit"; }
[INFO] [stderr] 336 | |             let _y = block!('c: {
[INFO] [stderr] 337 | |                 if flag { break 'b "inner early exit"; };
[INFO] [stderr] ...   |
[INFO] [stderr] 375 | |             "normal exit"
[INFO] [stderr] 376 | |         });
[INFO] [stderr]     | |__________- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/lib.rs:102:21
[INFO] [stderr]     |
[INFO] [stderr] 102 | /                     $ret = $out;
[INFO] [stderr] 103 | |                     break $life;
[INFO] [stderr] 104 | |                 }
[INFO] [stderr] 105 | |                 $ret
[INFO] [stderr] ...   |
[INFO] [stderr] 134 | |     (@scan {} $life:tt $ret:ident () -> ($($out:tt)*) (() $lp:tt $init:tt)) => {
[INFO] [stderr] 135 | |         block!(@wrap $life $lp $ret $init { $($out)* })
[INFO] [stderr]     | |______________________________________________________^
[INFO] [stderr] ...
[INFO] [stderr] 334 |           let x = block!('b: {
[INFO] [stderr]     |  _________________-
[INFO] [stderr] 335 | |             if flag { break 'b "early exit"; }
[INFO] [stderr] 336 | |             let _y = block!('c: {
[INFO] [stderr] 337 | |                 if flag { break 'b "inner early exit"; };
[INFO] [stderr] ...   |
[INFO] [stderr] 375 | |             "normal exit"
[INFO] [stderr] 376 | |         });
[INFO] [stderr]     | |__________- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `"docker" "inspect" "294fa80e58d0a946124fa487ad00b5ce46e7bb9b360b005f9fca6ff3b9f94197"`
[INFO] running `"docker" "rm" "-f" "294fa80e58d0a946124fa487ad00b5ce46e7bb9b360b005f9fca6ff3b9f94197"`
[INFO] [stdout] 294fa80e58d0a946124fa487ad00b5ce46e7bb9b360b005f9fca6ff3b9f94197
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/named-block/0.3.1:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] a1497b36dc375dc421bd98966dbed229b6ca8c5e9299916ceca432ac099c9d7a
[INFO] running `"docker" "start" "-a" "a1497b36dc375dc421bd98966dbed229b6ca8c5e9299916ceca432ac099c9d7a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/named_block-4824fba23b02decd
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test tests::shadowing ... ok
[INFO] [stdout] test tests::loops ... ok
[INFO] [stderr]    Doc-tests named-block
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - block (line 36) ... ok
[INFO] [stdout] test src/lib.rs - block (line 48) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "a1497b36dc375dc421bd98966dbed229b6ca8c5e9299916ceca432ac099c9d7a"`
[INFO] running `"docker" "rm" "-f" "a1497b36dc375dc421bd98966dbed229b6ca8c5e9299916ceca432ac099c9d7a"`
[INFO] [stdout] a1497b36dc375dc421bd98966dbed229b6ca8c5e9299916ceca432ac099c9d7a