[INFO] fetching crate comp 0.2.1...
[INFO] testing comp-0.2.1 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate comp 0.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate comp 0.2.1 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate comp 0.2.1
[INFO] finished tweaking crates.io crate comp 0.2.1
[INFO] tweaked toml for crates.io crate comp 0.2.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a76be4ac14829e0f1372466a36659f3313002d1746117a7652682a2e7c2665e4
[INFO] running `Command { std: "docker" "start" "-a" "a76be4ac14829e0f1372466a36659f3313002d1746117a7652682a2e7c2665e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a76be4ac14829e0f1372466a36659f3313002d1746117a7652682a2e7c2665e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a76be4ac14829e0f1372466a36659f3313002d1746117a7652682a2e7c2665e4", kill_on_drop: false }`
[INFO] [stdout] a76be4ac14829e0f1372466a36659f3313002d1746117a7652682a2e7c2665e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 442f252c4e864e00bc8502a7728916d7f050fadaa3ded303d2baf4755dbd2770
[INFO] running `Command { std: "docker" "start" "-a" "442f252c4e864e00bc8502a7728916d7f050fadaa3ded303d2baf4755dbd2770", kill_on_drop: false }`
[INFO] [stderr]    Compiling comp v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "442f252c4e864e00bc8502a7728916d7f050fadaa3ded303d2baf4755dbd2770", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "442f252c4e864e00bc8502a7728916d7f050fadaa3ded303d2baf4755dbd2770", kill_on_drop: false }`
[INFO] [stdout] 442f252c4e864e00bc8502a7728916d7f050fadaa3ded303d2baf4755dbd2770
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 207e0fb0694d481e125a9ff811698a339fc22ae9c9c938caac31794a5e2fcdd5
[INFO] running `Command { std: "docker" "start" "-a" "207e0fb0694d481e125a9ff811698a339fc22ae9c9c938caac31794a5e2fcdd5", kill_on_drop: false }`
[INFO] [stderr]    Compiling comp v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:761:10
[INFO] [stdout]     |
[INFO] [stdout] 761 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:765:10
[INFO] [stdout]     |
[INFO] [stdout] 765 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:820:10
[INFO] [stdout]     |
[INFO] [stdout] 820 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:824:10
[INFO] [stdout]     |
[INFO] [stdout] 824 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:632:17
[INFO] [stdout]     |
[INFO] [stdout] 632 |           { $stmt ; iter! { $( $t )* } }
[INFO] [stdout]     |                   ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 892 |           let iter = iter! {
[INFO] [stdout]     |  ____________________-
[INFO] [stdout] 893 | |             let start = 5;
[INFO] [stdout] 894 | |             let end;
[INFO] [stdout] 895 | |             end = start * 3;
[INFO] [stdout] ...   |
[INFO] [stdout] 899 | |             x
[INFO] [stdout] 900 | |         };
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `iter` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:632:17
[INFO] [stdout]     |
[INFO] [stdout] 632 |           { $stmt ; iter! { $( $t )* } }
[INFO] [stdout]     |                   ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 892 |           let iter = iter! {
[INFO] [stdout]     |  ____________________-
[INFO] [stdout] 893 | |             let start = 5;
[INFO] [stdout] 894 | |             let end;
[INFO] [stdout] 895 | |             end = start * 3;
[INFO] [stdout] ...   |
[INFO] [stdout] 899 | |             x
[INFO] [stdout] 900 | |         };
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `iter` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:632:17
[INFO] [stdout]     |
[INFO] [stdout] 632 |           { $stmt ; iter! { $( $t )* } }
[INFO] [stdout]     |                   ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 892 |           let iter = iter! {
[INFO] [stdout]     |  ____________________-
[INFO] [stdout] 893 | |             let start = 5;
[INFO] [stdout] 894 | |             let end;
[INFO] [stdout] 895 | |             end = start * 3;
[INFO] [stdout] ...   |
[INFO] [stdout] 899 | |             x
[INFO] [stdout] 900 | |         };
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `iter` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:632:17
[INFO] [stdout]     |
[INFO] [stdout] 632 |           { $stmt ; iter! { $( $t )* } }
[INFO] [stdout]     |                   ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 907 |           let iter = iter! {
[INFO] [stdout]     |  ____________________-
[INFO] [stdout] 908 | |             let mut a <- 0..5;
[INFO] [stdout] 909 | |
[INFO] [stdout] 910 | |             {
[INFO] [stdout] ...   |
[INFO] [stdout] 923 | |             (a, count)
[INFO] [stdout] 924 | |         };
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `iter` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:632:17
[INFO] [stdout]     |
[INFO] [stdout] 632 |           { $stmt ; iter! { $( $t )* } }
[INFO] [stdout]     |                   ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 907 |           let iter = iter! {
[INFO] [stdout]     |  ____________________-
[INFO] [stdout] 908 | |             let mut a <- 0..5;
[INFO] [stdout] 909 | |
[INFO] [stdout] 910 | |             {
[INFO] [stdout] ...   |
[INFO] [stdout] 923 | |             (a, count)
[INFO] [stdout] 924 | |         };
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `iter` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:482:17
[INFO] [stdout]     |
[INFO] [stdout] 482 |           { $stmt ; option! { $( $t )* } }
[INFO] [stdout]     |                   ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 933 |           let option = option! {
[INFO] [stdout]     |  ______________________-
[INFO] [stdout] 934 | |             let mut a <- Some(2);
[INFO] [stdout] 935 | |             a = a + 10;
[INFO] [stdout] 936 | |
[INFO] [stdout] ...   |
[INFO] [stdout] 940 | |             (a, b)
[INFO] [stdout] 941 | |         };
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `option` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:482:17
[INFO] [stdout]     |
[INFO] [stdout] 482 |           { $stmt ; option! { $( $t )* } }
[INFO] [stdout]     |                   ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 933 |           let option = option! {
[INFO] [stdout]     |  ______________________-
[INFO] [stdout] 934 | |             let mut a <- Some(2);
[INFO] [stdout] 935 | |             a = a + 10;
[INFO] [stdout] 936 | |
[INFO] [stdout] ...   |
[INFO] [stdout] 940 | |             (a, b)
[INFO] [stdout] 941 | |         };
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `option` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:554:17
[INFO] [stdout]     |
[INFO] [stdout] 554 |           { $stmt ; result! { $( $t )* } }
[INFO] [stdout]     |                   ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 944 |           let result = result! {
[INFO] [stdout]     |  ______________________-
[INFO] [stdout] 945 | |             let mut a <- ok(2);
[INFO] [stdout] 946 | |             a = a + 10;
[INFO] [stdout] 947 | |
[INFO] [stdout] ...   |
[INFO] [stdout] 951 | |             (a, b)
[INFO] [stdout] 952 | |         };
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `result` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:554:17
[INFO] [stdout]     |
[INFO] [stdout] 554 |           { $stmt ; result! { $( $t )* } }
[INFO] [stdout]     |                   ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 944 |           let result = result! {
[INFO] [stdout]     |  ______________________-
[INFO] [stdout] 945 | |             let mut a <- ok(2);
[INFO] [stdout] 946 | |             a = a + 10;
[INFO] [stdout] 947 | |
[INFO] [stdout] ...   |
[INFO] [stdout] 951 | |             (a, b)
[INFO] [stdout] 952 | |         };
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `result` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:632:17
[INFO] [stdout]     |
[INFO] [stdout] 632 |           { $stmt ; iter! { $( $t )* } }
[INFO] [stdout]     |                   ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 955 |           let iter = iter! {
[INFO] [stdout]     |  ____________________-
[INFO] [stdout] 956 | |             let mut a <- 2..3;
[INFO] [stdout] 957 | |             a = a + 10;
[INFO] [stdout] 958 | |             a
[INFO] [stdout] 959 | |         };
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `iter` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021
[INFO] [stdout]    --> src/lib.rs:602:12
[INFO] [stdout]     |
[INFO] [stdout] 602 |           $e.into_iter().flat_map(move | iter! (@as_pat $p) | { iter! { $( $t )* } } )
[INFO] [stdout]     |              ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 732 |           let iter = iter! {
[INFO] [stdout]     |  ____________________-
[INFO] [stdout] 733 | |             let x <- array;
[INFO] [stdout] 734 | |             let y <- *x..4;
[INFO] [stdout] 735 | |             (*x, y)
[INFO] [stdout] 736 | |         };
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]     = note: this warning originates in the macro `iter` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 602 |         $e.iter().flat_map(move | iter! (@as_pat $p) | { iter! { $( $t )* } } )
[INFO] [stdout]     |            ~~~~
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 602 |         IntoIterator::into_iter($e.into_iter()).flat_map(move | iter! (@as_pat $p) | { iter! { $( $t )* } } )
[INFO] [stdout]     |         ++++++++++++++++++++++++              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.21s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/comp-708913c42c33fefb)
[INFO] running `Command { std: "docker" "inspect" "207e0fb0694d481e125a9ff811698a339fc22ae9c9c938caac31794a5e2fcdd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "207e0fb0694d481e125a9ff811698a339fc22ae9c9c938caac31794a5e2fcdd5", kill_on_drop: false }`
[INFO] [stdout] 207e0fb0694d481e125a9ff811698a339fc22ae9c9c938caac31794a5e2fcdd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8afa4f26dbece84069fdf0ce902c76cb6693a56899e5a8e7863bddcde9c9f086
[INFO] running `Command { std: "docker" "start" "-a" "8afa4f26dbece84069fdf0ce902c76cb6693a56899e5a8e7863bddcde9c9f086", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/lib.rs:761:10
[INFO] [stderr]     |
[INFO] [stderr] 761 |         };
[INFO] [stderr]     |          ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/lib.rs:765:10
[INFO] [stderr]     |
[INFO] [stderr] 765 |         };
[INFO] [stderr]     |          ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/lib.rs:820:10
[INFO] [stderr]     |
[INFO] [stderr] 820 |         };
[INFO] [stderr]     |          ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/lib.rs:824:10
[INFO] [stderr]     |
[INFO] [stderr] 824 |         };
[INFO] [stderr]     |          ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/lib.rs:632:17
[INFO] [stderr]     |
[INFO] [stderr] 632 |           { $stmt ; iter! { $( $t )* } }
[INFO] [stderr]     |                   ^ help: remove this semicolon
[INFO] [stderr] ...
[INFO] [stderr] 892 |           let iter = iter! {
[INFO] [stderr]     |  ____________________-
[INFO] [stderr] 893 | |             let start = 5;
[INFO] [stderr] 894 | |             let end;
[INFO] [stderr] 895 | |             end = start * 3;
[INFO] [stderr] ...   |
[INFO] [stderr] 899 | |             x
[INFO] [stderr] 900 | |         };
[INFO] [stderr]     | |_________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `iter` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/lib.rs:632:17
[INFO] [stderr]     |
[INFO] [stderr] 632 |           { $stmt ; iter! { $( $t )* } }
[INFO] [stderr]     |                   ^ help: remove this semicolon
[INFO] [stderr] ...
[INFO] [stderr] 907 |           let iter = iter! {
[INFO] [stderr]     |  ____________________-
[INFO] [stderr] 908 | |             let mut a <- 0..5;
[INFO] [stderr] 909 | |
[INFO] [stderr] 910 | |             {
[INFO] [stderr] ...   |
[INFO] [stderr] 923 | |             (a, count)
[INFO] [stderr] 924 | |         };
[INFO] [stderr]     | |_________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `iter` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/lib.rs:482:17
[INFO] [stderr]     |
[INFO] [stderr] 482 |           { $stmt ; option! { $( $t )* } }
[INFO] [stderr]     |                   ^ help: remove this semicolon
[INFO] [stderr] ...
[INFO] [stderr] 933 |           let option = option! {
[INFO] [stderr]     |  ______________________-
[INFO] [stderr] 934 | |             let mut a <- Some(2);
[INFO] [stderr] 935 | |             a = a + 10;
[INFO] [stderr] 936 | |
[INFO] [stderr] ...   |
[INFO] [stderr] 940 | |             (a, b)
[INFO] [stderr] 941 | |         };
[INFO] [stderr]     | |_________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `option` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/lib.rs:554:17
[INFO] [stderr]     |
[INFO] [stderr] 554 |           { $stmt ; result! { $( $t )* } }
[INFO] [stderr]     |                   ^ help: remove this semicolon
[INFO] [stderr] ...
[INFO] [stderr] 944 |           let result = result! {
[INFO] [stderr]     |  ______________________-
[INFO] [stderr] 945 | |             let mut a <- ok(2);
[INFO] [stderr] 946 | |             a = a + 10;
[INFO] [stderr] 947 | |
[INFO] [stderr] ...   |
[INFO] [stderr] 951 | |             (a, b)
[INFO] [stderr] 952 | |         };
[INFO] [stderr]     | |_________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `result` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/lib.rs:632:17
[INFO] [stderr]     |
[INFO] [stderr] 632 |           { $stmt ; iter! { $( $t )* } }
[INFO] [stderr]     |                   ^ help: remove this semicolon
[INFO] [stderr] ...
[INFO] [stderr] 955 |           let iter = iter! {
[INFO] [stderr]     |  ____________________-
[INFO] [stderr] 956 | |             let mut a <- 2..3;
[INFO] [stderr] 957 | |             a = a + 10;
[INFO] [stderr] 958 | |             a
[INFO] [stderr] 959 | |         };
[INFO] [stderr]     | |_________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `iter` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021
[INFO] [stderr]    --> src/lib.rs:602:12
[INFO] [stderr]     |
[INFO] [stderr] 602 |           $e.into_iter().flat_map(move | iter! (@as_pat $p) | { iter! { $( $t )* } } )
[INFO] [stderr]     |              ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 732 |           let iter = iter! {
[INFO] [stderr]     |  ____________________-
[INFO] [stderr] 733 | |             let x <- array;
[INFO] [stderr] 734 | |             let y <- *x..4;
[INFO] [stderr] 735 | |             (*x, y)
[INFO] [stderr] 736 | |         };
[INFO] [stderr]     | |_________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(array_into_iter)]` on by default
[INFO] [stderr]     = warning: this changes meaning in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stderr]     = note: this warning originates in the macro `iter` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stderr]     |
[INFO] [stderr] 602 |         $e.iter().flat_map(move | iter! (@as_pat $p) | { iter! { $( $t )* } } )
[INFO] [stderr]     |            ~~~~
[INFO] [stderr] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stderr]     |
[INFO] [stderr] 602 |         IntoIterator::into_iter($e.into_iter()).flat_map(move | iter! (@as_pat $p) | { iter! { $( $t )* } } )
[INFO] [stderr]     |         ++++++++++++++++++++++++              +
[INFO] [stderr] 
[INFO] [stderr] warning: `comp` (lib test) generated 15 warnings (5 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/comp-708913c42c33fefb)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test tests::test_array ... ok
[INFO] [stdout] test tests::test_if_expression ... ok
[INFO] [stdout] test tests::test_ignore ... ok
[INFO] [stderr]    Doc-tests comp
[INFO] [stdout] test tests::test_basic ... ok
[INFO] [stdout] test tests::test_mut ... ok
[INFO] [stdout] test tests::test_comments ... ok
[INFO] [stdout] test tests::test_pattern ... ok
[INFO] [stdout] test tests::test_statement ... ok
[INFO] [stdout] test tests::test_nested ... ok
[INFO] [stdout] test tests::test_guard ... ok
[INFO] [stdout] test tests::test_block ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test src/lib.rs - (line 151) ... ignored
[INFO] [stdout] test src/lib.rs - (line 75) - compile ... ok
[INFO] [stdout] test src/lib.rs - (line 111) - compile ... ok
[INFO] [stdout] test src/lib.rs - (line 93) - compile ... ok
[INFO] [stdout] test src/lib.rs - (line 52) ... ok
[INFO] [stdout] test src/lib.rs - (line 247) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 19) ... ok
[INFO] [stdout] test src/lib.rs - (line 305) ... ok
[INFO] [stdout] test src/lib.rs - (line 180) ... ok
[INFO] [stdout] test src/lib.rs - (line 230) ... ok
[INFO] [stdout] test src/lib.rs - (line 271) ... ok
[INFO] [stdout] test src/lib.rs - (line 32) ... ok
[INFO] [stdout] test src/lib.rs - (line 287) ... ok
[INFO] [stdout] test src/lib.rs - (line 203) ... ok
[INFO] [stdout] test src/lib.rs - (line 346) ... ok
[INFO] [stdout] test src/lib.rs - (line 322) ... ok
[INFO] [stdout] test src/lib.rs - (line 365) ... ok
[INFO] [stdout] test src/lib.rs - (line 403) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 247) stdout ----
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:260:3
[INFO] [stdout]    |
[INFO] [stdout] 14 |   a + b;
[INFO] [stdout]    |   ^^^^^- help: consider using a semicolon here
[INFO] [stdout]    |   |
[INFO] [stdout]    |   expected `()`, found integer
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 247)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 16 passed; 1 failed; 1 ignored; 0 measured; 0 filtered out; finished in 1.03s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "8afa4f26dbece84069fdf0ce902c76cb6693a56899e5a8e7863bddcde9c9f086", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8afa4f26dbece84069fdf0ce902c76cb6693a56899e5a8e7863bddcde9c9f086", kill_on_drop: false }`
[INFO] [stdout] 8afa4f26dbece84069fdf0ce902c76cb6693a56899e5a8e7863bddcde9c9f086