[INFO] fetching crate dlist 0.1.4...
[INFO] testing dlist-0.1.4 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate dlist 0.1.4 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate dlist 0.1.4
[INFO] finished tweaking crates.io crate dlist 0.1.4
[INFO] tweaked toml for crates.io crate dlist 0.1.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate dlist 0.1.4 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 16 packages to latest compatible versions
[INFO] [stderr]       Adding lipsum v0.7.0 (available: v0.9.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0508303c8d5cb2a9f3125f50240de0bce3eae9329f8d7345aefcfedaa5b9cb6
[INFO] running `Command { std: "docker" "start" "-a" "b0508303c8d5cb2a9f3125f50240de0bce3eae9329f8d7345aefcfedaa5b9cb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0508303c8d5cb2a9f3125f50240de0bce3eae9329f8d7345aefcfedaa5b9cb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0508303c8d5cb2a9f3125f50240de0bce3eae9329f8d7345aefcfedaa5b9cb6", kill_on_drop: false }`
[INFO] [stdout] b0508303c8d5cb2a9f3125f50240de0bce3eae9329f8d7345aefcfedaa5b9cb6
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 489e499b93df65167f4d672c65e7bd98d35b1f2f9bc1e53c73def885778d1006
[INFO] running `Command { std: "docker" "start" "-a" "489e499b93df65167f4d672c65e7bd98d35b1f2f9bc1e53c73def885778d1006", kill_on_drop: false }`
[INFO] [stderr]    Compiling dlist v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/distance_list.rs:55:25
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn get_by_index(&self, index: usize) -> Option<ItemInfo<V, M::Measure>> {
[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] 55 |     pub fn get_by_index(&self, index: usize) -> Option<ItemInfo<'_, V, M::Measure>> {
[INFO] [stdout]    |                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/distance_list.rs:62:28
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn get_by_distance(&self, distance: M::Measure) -> Option<ItemInfo<V, M::Measure>> {
[INFO] [stdout]    |                            ^^^^^ the lifetime is elided here      ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn get_by_distance(&self, distance: M::Measure) -> Option<ItemInfo<'_, V, M::Measure>> {
[INFO] [stdout]    |                                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "489e499b93df65167f4d672c65e7bd98d35b1f2f9bc1e53c73def885778d1006", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "489e499b93df65167f4d672c65e7bd98d35b1f2f9bc1e53c73def885778d1006", kill_on_drop: false }`
[INFO] [stdout] 489e499b93df65167f4d672c65e7bd98d35b1f2f9bc1e53c73def885778d1006
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f29c97acd031053e73eb97ba6a094cc0f97aaaea076df0c3d266d3c6c693b5dc
[INFO] running `Command { std: "docker" "start" "-a" "f29c97acd031053e73eb97ba6a094cc0f97aaaea076df0c3d266d3c6c693b5dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/distance_list.rs:55:25
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn get_by_index(&self, index: usize) -> Option<ItemInfo<V, M::Measure>> {
[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] 55 |     pub fn get_by_index(&self, index: usize) -> Option<ItemInfo<'_, V, M::Measure>> {
[INFO] [stdout]    |                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/distance_list.rs:62:28
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn get_by_distance(&self, distance: M::Measure) -> Option<ItemInfo<V, M::Measure>> {
[INFO] [stdout]    |                            ^^^^^ the lifetime is elided here      ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn get_by_distance(&self, distance: M::Measure) -> Option<ItemInfo<'_, V, M::Measure>> {
[INFO] [stdout]    |                                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling lipsum v0.7.0
[INFO] [stderr]    Compiling dlist v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `MeasurerU32` is never constructed
[INFO] [stdout]  --> tests/get_by_distance_tests.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct MeasurerU32;
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/distance_list.rs:55:25
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn get_by_index(&self, index: usize) -> Option<ItemInfo<V, M::Measure>> {
[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] 55 |     pub fn get_by_index(&self, index: usize) -> Option<ItemInfo<'_, V, M::Measure>> {
[INFO] [stdout]    |                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/distance_list.rs:62:28
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn get_by_distance(&self, distance: M::Measure) -> Option<ItemInfo<V, M::Measure>> {
[INFO] [stdout]    |                            ^^^^^ the lifetime is elided here      ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn get_by_distance(&self, distance: M::Measure) -> Option<ItemInfo<'_, V, M::Measure>> {
[INFO] [stdout]    |                                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.51s
[INFO] running `Command { std: "docker" "inspect" "f29c97acd031053e73eb97ba6a094cc0f97aaaea076df0c3d266d3c6c693b5dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f29c97acd031053e73eb97ba6a094cc0f97aaaea076df0c3d266d3c6c693b5dc", kill_on_drop: false }`
[INFO] [stdout] f29c97acd031053e73eb97ba6a094cc0f97aaaea076df0c3d266d3c6c693b5dc
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 59b05bd750a1be7dcfce74d869372a645c5065a25c2023a3a99664cdcfdc9c49
[INFO] running `Command { std: "docker" "start" "-a" "59b05bd750a1be7dcfce74d869372a645c5065a25c2023a3a99664cdcfdc9c49", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/distance_list.rs:55:25
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn get_by_index(&self, index: usize) -> Option<ItemInfo<V, M::Measure>> {
[INFO] [stderr]    |                         ^^^^^                          ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn get_by_index(&self, index: usize) -> Option<ItemInfo<'_, V, M::Measure>> {
[INFO] [stderr]    |                                                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/distance_list.rs:62:28
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn get_by_distance(&self, distance: M::Measure) -> Option<ItemInfo<V, M::Measure>> {
[INFO] [stderr]    |                            ^^^^^ the lifetime is elided here      ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn get_by_distance(&self, distance: M::Measure) -> Option<ItemInfo<'_, V, M::Measure>> {
[INFO] [stderr]    |                                                                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: `dlist` (lib) generated 2 warnings (run `cargo fix --lib -p dlist` to apply 2 suggestions)
[INFO] [stderr] warning: struct `MeasurerU32` is never constructed
[INFO] [stderr]  --> tests/get_by_distance_tests.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | struct MeasurerU32;
[INFO] [stderr]   |        ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `dlist` (test "get_by_distance_tests") generated 1 warning
[INFO] [stderr] warning: `dlist` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/dlist-923b804e8f174722)
[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] [stderr]      Running tests/delete_tests.rs (/opt/rustwide/target/debug/deps/delete_tests-6b87a5e81496a53e)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test del_odd ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/get_by_distance_tests.rs (/opt/rustwide/target/debug/deps/get_by_distance_tests-f2776c40aec236f9)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test get_dist ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests dlist
[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" "59b05bd750a1be7dcfce74d869372a645c5065a25c2023a3a99664cdcfdc9c49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59b05bd750a1be7dcfce74d869372a645c5065a25c2023a3a99664cdcfdc9c49", kill_on_drop: false }`
[INFO] [stdout] 59b05bd750a1be7dcfce74d869372a645c5065a25c2023a3a99664cdcfdc9c49
