[INFO] fetching crate loopable 0.1.0...
[INFO] testing loopable-0.1.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate loopable 0.1.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate loopable 0.1.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate loopable 0.1.0
[INFO] finished tweaking crates.io crate loopable 0.1.0
[INFO] tweaked toml for crates.io crate loopable 0.1.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate loopable 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 590a3f4a040192efc34f4f70813639c69c4e983619a7097bba7a4583ea2b5945
[INFO] running `Command { std: "docker" "start" "-a" "590a3f4a040192efc34f4f70813639c69c4e983619a7097bba7a4583ea2b5945", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "590a3f4a040192efc34f4f70813639c69c4e983619a7097bba7a4583ea2b5945", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "590a3f4a040192efc34f4f70813639c69c4e983619a7097bba7a4583ea2b5945", kill_on_drop: false }`
[INFO] [stdout] 590a3f4a040192efc34f4f70813639c69c4e983619a7097bba7a4583ea2b5945
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6bedebad484375745088e982cf71f51a664d25dc5a8a1808ddc46c216ff58e87
[INFO] running `Command { std: "docker" "start" "-a" "6bedebad484375745088e982cf71f51a664d25dc5a8a1808ddc46c216ff58e87", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling loopable v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/gen_range.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(start: T, stop: T, step: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_c`
[INFO] [stdout]   --> src/main.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn print_c<I: Iterator<Item=String>>(v:I) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.86s
[INFO] running `Command { std: "docker" "inspect" "6bedebad484375745088e982cf71f51a664d25dc5a8a1808ddc46c216ff58e87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bedebad484375745088e982cf71f51a664d25dc5a8a1808ddc46c216ff58e87", kill_on_drop: false }`
[INFO] [stdout] 6bedebad484375745088e982cf71f51a664d25dc5a8a1808ddc46c216ff58e87
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3888430ba261af8088c7fea6ca0ae53461ceb2ca6e28dad503630ce35a5c1e16
[INFO] running `Command { std: "docker" "start" "-a" "3888430ba261af8088c7fea6ca0ae53461ceb2ca6e28dad503630ce35a5c1e16", kill_on_drop: false }`
[INFO] [stderr]    Compiling loopable v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/gen_range.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(start: T, stop: T, step: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/combi.rs:95:42
[INFO] [stdout]    |
[INFO] [stdout] 95 |         let v : Vec<&str> = s.split(" ").intersperse(",").collect();
[INFO] [stdout]    |                                          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_c`
[INFO] [stdout]   --> src/main.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn print_c<I: Iterator<Item=String>>(v:I) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.49s
[INFO] running `Command { std: "docker" "inspect" "3888430ba261af8088c7fea6ca0ae53461ceb2ca6e28dad503630ce35a5c1e16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3888430ba261af8088c7fea6ca0ae53461ceb2ca6e28dad503630ce35a5c1e16", kill_on_drop: false }`
[INFO] [stdout] 3888430ba261af8088c7fea6ca0ae53461ceb2ca6e28dad503630ce35a5c1e16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d4703bb81fba8557aeb6854fed036f1270552496e6f71c629709abefef3c504e
[INFO] running `Command { std: "docker" "start" "-a" "d4703bb81fba8557aeb6854fed036f1270552496e6f71c629709abefef3c504e", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/gen_range.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn new(start: T, stop: T, step: T) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/combi.rs:95:42
[INFO] [stderr]    |
[INFO] [stderr] 95 |         let v : Vec<&str> = s.split(" ").intersperse(",").collect();
[INFO] [stderr]    |                                          ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stderr]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_c`
[INFO] [stderr]   --> src/main.rs:42:4
[INFO] [stderr]    |
[INFO] [stderr] 42 | fn print_c<I: Iterator<Item=String>>(v:I) {
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/d2_iterators-f2bbdfa321d1c799)
[INFO] [stdout] running 12 tests
[INFO] [stdout] test combi::combi_tests::skip_iter_2 ... ok
[INFO] [stdout] test combi::combi_tests::test_interleave ... ok
[INFO] [stdout] test combi::combi_tests::test_intersperse ... ok
[INFO] [stdout] test gen_range::tests::filter ... ok
[INFO] [stdout] test tests::tup_test ... ok
[INFO] [stdout] test tests::iter_test ... ok
[INFO] [stdout] test combi::combi_tests::test_step_by ... ok
[INFO] [stdout] test combi::combi_tests::skip_iter_test ... ok
[INFO] [stdout] test gen_range::tests::it_works ... ok
[INFO] [stdout] test gen_range::tests::iter_test ... ok
[INFO] [stdout] test combi::combi_tests::it_works ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/d2_printout-71d98b6c5506ab27)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stderr]    Doc-tests d2_iterators
[INFO] [stdout] test gen_range::tests::it_works ... ok
[INFO] [stdout] test gen_range::tests::filter ... ok
[INFO] [stdout] test gen_range::tests::iter_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d4703bb81fba8557aeb6854fed036f1270552496e6f71c629709abefef3c504e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4703bb81fba8557aeb6854fed036f1270552496e6f71c629709abefef3c504e", kill_on_drop: false }`
[INFO] [stdout] d4703bb81fba8557aeb6854fed036f1270552496e6f71c629709abefef3c504e
