[INFO] fetching crate nummer 0.2.1...
[INFO] testing nummer-0.2.1 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate nummer 0.2.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate nummer 0.2.1
[INFO] finished tweaking crates.io crate nummer 0.2.1
[INFO] tweaked toml for crates.io crate nummer 0.2.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nummer 0.2.1 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee598e9ec4cd915e1f97f74dc2be1f9ae6d1ca59dbf36b48004acca11fcb4686
[INFO] running `Command { std: "docker" "start" "-a" "ee598e9ec4cd915e1f97f74dc2be1f9ae6d1ca59dbf36b48004acca11fcb4686", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee598e9ec4cd915e1f97f74dc2be1f9ae6d1ca59dbf36b48004acca11fcb4686", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee598e9ec4cd915e1f97f74dc2be1f9ae6d1ca59dbf36b48004acca11fcb4686", kill_on_drop: false }`
[INFO] [stdout] ee598e9ec4cd915e1f97f74dc2be1f9ae6d1ca59dbf36b48004acca11fcb4686
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93149b81411bc8b2eb6f35bcbb93a84ee9952d2ac839f6e788ced576d1196d31
[INFO] running `Command { std: "docker" "start" "-a" "93149b81411bc8b2eb6f35bcbb93a84ee9952d2ac839f6e788ced576d1196d31", kill_on_drop: false }`
[INFO] [stderr]    Compiling nummer v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:175:17
[INFO] [stdout]     |
[INFO] [stdout] 175 |     pub fn iter(&self) -> IndexSequenceIter<T> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 175 |     pub fn iter(&self) -> IndexSequenceIter<'_, T> {
[INFO] [stdout]     |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "93149b81411bc8b2eb6f35bcbb93a84ee9952d2ac839f6e788ced576d1196d31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93149b81411bc8b2eb6f35bcbb93a84ee9952d2ac839f6e788ced576d1196d31", kill_on_drop: false }`
[INFO] [stdout] 93149b81411bc8b2eb6f35bcbb93a84ee9952d2ac839f6e788ced576d1196d31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe2cc226437686920c66b4d04d4f40c4a7b08e0ec168b68fccb4a17172921f3e
[INFO] running `Command { std: "docker" "start" "-a" "fe2cc226437686920c66b4d04d4f40c4a7b08e0ec168b68fccb4a17172921f3e", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:175:17
[INFO] [stdout]     |
[INFO] [stdout] 175 |     pub fn iter(&self) -> IndexSequenceIter<T> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 175 |     pub fn iter(&self) -> IndexSequenceIter<'_, T> {
[INFO] [stdout]     |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling nummer v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:175:17
[INFO] [stdout]     |
[INFO] [stdout] 175 |     pub fn iter(&self) -> IndexSequenceIter<T> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 175 |     pub fn iter(&self) -> IndexSequenceIter<'_, T> {
[INFO] [stdout]     |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "fe2cc226437686920c66b4d04d4f40c4a7b08e0ec168b68fccb4a17172921f3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe2cc226437686920c66b4d04d4f40c4a7b08e0ec168b68fccb4a17172921f3e", kill_on_drop: false }`
[INFO] [stdout] fe2cc226437686920c66b4d04d4f40c4a7b08e0ec168b68fccb4a17172921f3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 991d4106de769f9aac15d6bf2d93a866b44ccc5c2d2805f8012279a94bcc55c8
[INFO] running `Command { std: "docker" "start" "-a" "991d4106de769f9aac15d6bf2d93a866b44ccc5c2d2805f8012279a94bcc55c8", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout] 
[INFO] [stderr]    --> src/lib.rs:175:17
[INFO] [stdout] running 11 tests
[INFO] [stderr]     |
[INFO] [stdout] test tests::check_index ... ok
[INFO] [stderr] 175 |     pub fn iter(&self) -> IndexSequenceIter<T> {
[INFO] [stdout] test tests::check_get_item ... ok
[INFO] [stderr]     |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] test tests::check_is_valid_dim ... ok
[INFO] [stderr]     |                 |
[INFO] [stdout] test tests::check_seq_indexes_column_major ... ok
[INFO] [stderr]     |                 the lifetime is elided here
[INFO] [stdout] test tests::check_set_item ... ok
[INFO] [stderr]     |
[INFO] [stdout] test tests::check_seq_indexes_row_major ... ok
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] test tests::check_strides_2d ... ok
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] test tests::check_strides_3d ... ok
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stdout] test tests::check_strides_4d ... ok
[INFO] [stderr]     |
[INFO] [stderr] 175 |     pub fn iter(&self) -> IndexSequenceIter<'_, T> {
[INFO] [stderr]     |                                             +++
[INFO] [stderr] 
[INFO] [stderr] warning: `nummer` (lib) generated 1 warning (run `cargo fix --lib -p nummer` to apply 1 suggestion)
[INFO] [stderr] warning: `nummer` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/nummer-975d1dcde65a3e76)
[INFO] [stdout] test tests::check_example ... ok
[INFO] [stdout] test tests::check_rev_iter ... ok
[INFO] [stderr]    Doc-tests nummer
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[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" "991d4106de769f9aac15d6bf2d93a866b44ccc5c2d2805f8012279a94bcc55c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "991d4106de769f9aac15d6bf2d93a866b44ccc5c2d2805f8012279a94bcc55c8", kill_on_drop: false }`
[INFO] [stdout] 991d4106de769f9aac15d6bf2d93a866b44ccc5c2d2805f8012279a94bcc55c8