[INFO] fetching crate comp 0.2.1...
[INFO] checking comp-0.2.1 against master#e59540968e0c6fc3c37d92a639b83fc8fcee5e81 for pr-114559
[INFO] extracting crate comp 0.2.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate comp 0.2.1 on toolchain e59540968e0c6fc3c37d92a639b83fc8fcee5e81
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e59540968e0c6fc3c37d92a639b83fc8fcee5e81" "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-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e59540968e0c6fc3c37d92a639b83fc8fcee5e81" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e59540968e0c6fc3c37d92a639b83fc8fcee5e81" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+e59540968e0c6fc3c37d92a639b83fc8fcee5e81" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d5773287f46dc9f4453dab060e93b29bae3ee12d9e2ed73cf72349f7697449c5
[INFO] running `Command { std: "docker" "start" "-a" "d5773287f46dc9f4453dab060e93b29bae3ee12d9e2ed73cf72349f7697449c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5773287f46dc9f4453dab060e93b29bae3ee12d9e2ed73cf72349f7697449c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5773287f46dc9f4453dab060e93b29bae3ee12d9e2ed73cf72349f7697449c5", kill_on_drop: false }`
[INFO] [stdout] d5773287f46dc9f4453dab060e93b29bae3ee12d9e2ed73cf72349f7697449c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+e59540968e0c6fc3c37d92a639b83fc8fcee5e81" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20a568e3b533c47a497b621a4fb5c1b240ebbe88b8591a45b788c467cf239aea
[INFO] running `Command { std: "docker" "start" "-a" "20a568e3b533c47a497b621a4fb5c1b240ebbe88b8591a45b788c467cf239aea", kill_on_drop: false }`
[INFO] [stderr]     Checking 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]     = 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: `#[warn(array_into_iter)]` on by default
[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 dev [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "20a568e3b533c47a497b621a4fb5c1b240ebbe88b8591a45b788c467cf239aea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20a568e3b533c47a497b621a4fb5c1b240ebbe88b8591a45b788c467cf239aea", kill_on_drop: false }`
[INFO] [stdout] 20a568e3b533c47a497b621a4fb5c1b240ebbe88b8591a45b788c467cf239aea
