[INFO] fetching crate dlist 0.1.4...
[INFO] checking dlist-0.1.4 against 1.95.0 for pr-155915
[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 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "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" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+1.95.0" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9cd3ad6c557b869a48a0466b37c1f7ef2be36f84fe76342f52ce639156019660
[INFO] running `Command { std: "docker" "start" "-a" "9cd3ad6c557b869a48a0466b37c1f7ef2be36f84fe76342f52ce639156019660", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9cd3ad6c557b869a48a0466b37c1f7ef2be36f84fe76342f52ce639156019660", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cd3ad6c557b869a48a0466b37c1f7ef2be36f84fe76342f52ce639156019660", kill_on_drop: false }`
[INFO] [stdout] 9cd3ad6c557b869a48a0466b37c1f7ef2be36f84fe76342f52ce639156019660
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3531f1a2c19afc6b39197479b6ebb0bc14e62596af453fb5ad64d5531ba453dc
[INFO] running `Command { std: "docker" "start" "-a" "3531f1a2c19afc6b39197479b6ebb0bc14e62596af453fb5ad64d5531ba453dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking 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]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking lipsum v0.7.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> benches/dlist_bench.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dlist` (bench "dlist_bench") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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] running `Command { std: "docker" "inspect" "3531f1a2c19afc6b39197479b6ebb0bc14e62596af453fb5ad64d5531ba453dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3531f1a2c19afc6b39197479b6ebb0bc14e62596af453fb5ad64d5531ba453dc", kill_on_drop: false }`
[INFO] [stdout] 3531f1a2c19afc6b39197479b6ebb0bc14e62596af453fb5ad64d5531ba453dc
