[INFO] fetching crate dlist 0.1.4...
[INFO] testing dlist-0.1.4 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate dlist 0.1.4 into /workspace/builds/worker-4-tc1/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-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate dlist 0.1.4 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lipsum v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5365557dce5ebf7cf22e3f4588882ad2331a01ccdb62cdf8a2d946065752cfd8
[INFO] running `Command { std: "docker" "start" "-a" "5365557dce5ebf7cf22e3f4588882ad2331a01ccdb62cdf8a2d946065752cfd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5365557dce5ebf7cf22e3f4588882ad2331a01ccdb62cdf8a2d946065752cfd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5365557dce5ebf7cf22e3f4588882ad2331a01ccdb62cdf8a2d946065752cfd8", kill_on_drop: false }`
[INFO] [stdout] 5365557dce5ebf7cf22e3f4588882ad2331a01ccdb62cdf8a2d946065752cfd8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4d490f5a9fac184c39fb4ff76879e74292aadb84874fed3e5cc641e83cd753f
[INFO] running `Command { std: "docker" "start" "-a" "f4d490f5a9fac184c39fb4ff76879e74292aadb84874fed3e5cc641e83cd753f", 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 0.34s
[INFO] running `Command { std: "docker" "inspect" "f4d490f5a9fac184c39fb4ff76879e74292aadb84874fed3e5cc641e83cd753f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4d490f5a9fac184c39fb4ff76879e74292aadb84874fed3e5cc641e83cd753f", kill_on_drop: false }`
[INFO] [stdout] f4d490f5a9fac184c39fb4ff76879e74292aadb84874fed3e5cc641e83cd753f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f356bc338c819d78b0173dde21cecc312c200d4877934d562f584a40f228f4c
[INFO] running `Command { std: "docker" "start" "-a" "4f356bc338c819d78b0173dde21cecc312c200d4877934d562f584a40f228f4c", 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 4.63s
[INFO] running `Command { std: "docker" "inspect" "4f356bc338c819d78b0173dde21cecc312c200d4877934d562f584a40f228f4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f356bc338c819d78b0173dde21cecc312c200d4877934d562f584a40f228f4c", kill_on_drop: false }`
[INFO] [stdout] 4f356bc338c819d78b0173dde21cecc312c200d4877934d562f584a40f228f4c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9a67f888b41ad3286e4a921a932a067822ee0c149d9a14a376f7c9f3c58779a0
[INFO] running `Command { std: "docker" "start" "-a" "9a67f888b41ad3286e4a921a932a067822ee0c149d9a14a376f7c9f3c58779a0", 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 0.04s
[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" "9a67f888b41ad3286e4a921a932a067822ee0c149d9a14a376f7c9f3c58779a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a67f888b41ad3286e4a921a932a067822ee0c149d9a14a376f7c9f3c58779a0", kill_on_drop: false }`
[INFO] [stdout] 9a67f888b41ad3286e4a921a932a067822ee0c149d9a14a376f7c9f3c58779a0
