[INFO] fetching crate algorithmica 0.1.10...
[INFO] checking algorithmica-0.1.10 against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] extracting crate algorithmica 0.1.10 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate algorithmica 0.1.10
[INFO] finished tweaking crates.io crate algorithmica 0.1.10
[INFO] tweaked toml for crates.io crate algorithmica 0.1.10 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate algorithmica 0.1.10 on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "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" "+82310651b93a594a3fd69015e1562186a080d94c" "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" "+82310651b93a594a3fd69015e1562186a080d94c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4de5f076eb969512acf4b68ec303f4603a85b338acc50f444a6e55b7d08be43f
[INFO] running `Command { std: "docker" "start" "-a" "4de5f076eb969512acf4b68ec303f4603a85b338acc50f444a6e55b7d08be43f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4de5f076eb969512acf4b68ec303f4603a85b338acc50f444a6e55b7d08be43f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4de5f076eb969512acf4b68ec303f4603a85b338acc50f444a6e55b7d08be43f", kill_on_drop: false }`
[INFO] [stdout] 4de5f076eb969512acf4b68ec303f4603a85b338acc50f444a6e55b7d08be43f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47c7e863923cf6cbb65428dded8e87be8480e532d510cb8d1fd47dd114015e94
[INFO] running `Command { std: "docker" "start" "-a" "47c7e863923cf6cbb65428dded8e87be8480e532d510cb8d1fd47dd114015e94", kill_on_drop: false }`
[INFO] [stderr]     Checking algorithmica v0.1.10 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bag/box.rs:42:17
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn iter(&self) -> Iter<Item> {
[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] 42 |     pub fn iter(&self) -> Iter<'_, Item> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bag/box.rs:48:21
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn iter_mut(&mut self) -> IterMut<Item> {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn iter_mut(&mut self) -> IterMut<'_, Item> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bag/rc.rs:39:17
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn iter(&self) -> Iter<Item> {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn iter(&self) -> Iter<'_, Item> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ll/bad_safe_dll.rs:97:23
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn peek_front(&self) -> Option<std::cell::Ref<Item>> {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn peek_front(&self) -> Option<std::cell::Ref<'_, Item>> {
[INFO] [stdout]    |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ll/bad_safe_dll.rs:103:27
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn peek_front_mut(&self) -> Option<std::cell::RefMut<Item>> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn peek_front_mut(&self) -> Option<std::cell::RefMut<'_, Item>> {
[INFO] [stdout]     |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ll/bad_safe_dll.rs:109:22
[INFO] [stdout]     |
[INFO] [stdout] 109 |     pub fn peek_back(&self) -> Option<std::cell::Ref<Item>> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 109 |     pub fn peek_back(&self) -> Option<std::cell::Ref<'_, Item>> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ll/bad_safe_dll.rs:115:26
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn peek_back_mut(&self) -> Option<std::cell::RefMut<Item>> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn peek_back_mut(&self) -> Option<std::cell::RefMut<'_, Item>> {
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ll/dll.rs:141:17
[INFO] [stdout]     |
[INFO] [stdout] 141 |     pub fn iter(&self) -> Iter<Item> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 141 |     pub fn iter(&self) -> Iter<'_, Item> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ll/stack.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn iter(&self) -> Iter<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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bag/box.rs:42:17
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn iter(&self) -> Iter<Item> {
[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] 42 |     pub fn iter(&self) -> Iter<'_, Item> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bag/box.rs:48:21
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn iter_mut(&mut self) -> IterMut<Item> {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn iter_mut(&mut self) -> IterMut<'_, Item> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bag/rc.rs:39:17
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn iter(&self) -> Iter<Item> {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn iter(&self) -> Iter<'_, Item> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ll/bad_safe_dll.rs:97:23
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn peek_front(&self) -> Option<std::cell::Ref<Item>> {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn peek_front(&self) -> Option<std::cell::Ref<'_, Item>> {
[INFO] [stdout]    |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ll/bad_safe_dll.rs:103:27
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn peek_front_mut(&self) -> Option<std::cell::RefMut<Item>> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn peek_front_mut(&self) -> Option<std::cell::RefMut<'_, Item>> {
[INFO] [stdout]     |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ll/bad_safe_dll.rs:109:22
[INFO] [stdout]     |
[INFO] [stdout] 109 |     pub fn peek_back(&self) -> Option<std::cell::Ref<Item>> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 109 |     pub fn peek_back(&self) -> Option<std::cell::Ref<'_, Item>> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ll/bad_safe_dll.rs:115:26
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn peek_back_mut(&self) -> Option<std::cell::RefMut<Item>> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn peek_back_mut(&self) -> Option<std::cell::RefMut<'_, Item>> {
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ll/dll.rs:141:17
[INFO] [stdout]     |
[INFO] [stdout] 141 |     pub fn iter(&self) -> Iter<Item> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 141 |     pub fn iter(&self) -> Iter<'_, Item> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ll/stack.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn iter(&self) -> Iter<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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "47c7e863923cf6cbb65428dded8e87be8480e532d510cb8d1fd47dd114015e94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47c7e863923cf6cbb65428dded8e87be8480e532d510cb8d1fd47dd114015e94", kill_on_drop: false }`
[INFO] [stdout] 47c7e863923cf6cbb65428dded8e87be8480e532d510cb8d1fd47dd114015e94
