[INFO] fetching crate moving_gc_arena 0.3.3...
[INFO] testing moving_gc_arena-0.3.3 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate moving_gc_arena 0.3.3 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate moving_gc_arena 0.3.3
[INFO] finished tweaking crates.io crate moving_gc_arena 0.3.3
[INFO] tweaked toml for crates.io crate moving_gc_arena 0.3.3 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate moving_gc_arena 0.3.3 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate moving_gc_arena 0.3.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e5566362eb195c934be7452bc357e1467fc1721ccd3a8f95616ab8dda3171969
[INFO] running `Command { std: "docker" "start" "-a" "e5566362eb195c934be7452bc357e1467fc1721ccd3a8f95616ab8dda3171969", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e5566362eb195c934be7452bc357e1467fc1721ccd3a8f95616ab8dda3171969", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5566362eb195c934be7452bc357e1467fc1721ccd3a8f95616ab8dda3171969", kill_on_drop: false }`
[INFO] [stdout] e5566362eb195c934be7452bc357e1467fc1721ccd3a8f95616ab8dda3171969
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 368218def9715b56e78c43890d3936b7becb199584d55f4cc7e76fe8a13c3784
[INFO] running `Command { std: "docker" "start" "-a" "368218def9715b56e78c43890d3936b7becb199584d55f4cc7e76fe8a13c3784", kill_on_drop: false }`
[INFO] [stderr]    Compiling moving_gc_arena v0.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/region/collect.rs:376:10
[INFO] [stdout]     |
[INFO] [stdout] 376 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` (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/entry/safe_entry.rs:104:28
[INFO] [stdout]     |
[INFO] [stdout] 104 |     pub(crate) fn reborrow(&mut self) -> MutPresent<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] 104 |     pub(crate) fn reborrow(&mut self) -> MutPresent<'_, T> {
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/entry/safe_entry.rs:127:27
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub(crate) fn variant(&mut self) -> SpotVariant<MutPresent<T>, 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] 127 |     pub(crate) fn variant(&mut self) -> SpotVariant<MutPresent<'_, T>, T> {
[INFO] [stdout]     |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/entry/safe_entry.rs:134:23
[INFO] [stdout]     |
[INFO] [stdout] 134 |     pub(crate) fn get(&self) -> Option<Present<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] 134 |     pub(crate) fn get(&self) -> Option<Present<'_, T>> {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/entry/safe_entry.rs:141:27
[INFO] [stdout]     |
[INFO] [stdout] 141 |     pub(crate) fn get_mut(&mut self) -> Option<MutPresent<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] 141 |     pub(crate) fn get_mut(&mut self) -> Option<MutPresent<'_, T>> {
[INFO] [stdout]     |                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/region/mod.rs:62:33
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub(crate) fn entry_raw_mut(&mut self, ix: Ix<T>) -> Entry<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] 62 |     pub(crate) fn entry_raw_mut(&mut self, ix: Ix<T>) -> Entry<'_, T> {
[INFO] [stdout]    |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/region/mod.rs:71:25
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub(crate) fn entry(&self, ix: Ix<T>) -> Result<Present<T>, Error> {
[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] 71 |     pub(crate) fn entry(&self, ix: Ix<T>) -> Result<Present<'_, T>, Error> {
[INFO] [stdout]    |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/region/mod.rs:169:21
[INFO] [stdout]     |
[INFO] [stdout] 169 |     pub fn alloc<F>(&mut self, make_t: F) -> Entry<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] 169 |     pub fn alloc<F>(&mut self, make_t: F) -> Entry<'_, T>
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/region/types.rs:133:21
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn reborrow(&mut self) -> Entry<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] 133 |     pub fn reborrow(&mut self) -> Entry<'_, T> {
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "368218def9715b56e78c43890d3936b7becb199584d55f4cc7e76fe8a13c3784", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "368218def9715b56e78c43890d3936b7becb199584d55f4cc7e76fe8a13c3784", kill_on_drop: false }`
[INFO] [stdout] 368218def9715b56e78c43890d3936b7becb199584d55f4cc7e76fe8a13c3784
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1bea01c6f5e68c46e10f3203108d4ed3ac330278c3c79c92bcc8d5195fb550ba
[INFO] running `Command { std: "docker" "start" "-a" "1bea01c6f5e68c46e10f3203108d4ed3ac330278c3c79c92bcc8d5195fb550ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling moving_gc_arena v0.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/region/collect.rs:376:10
[INFO] [stdout]     |
[INFO] [stdout] 376 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` (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/entry/safe_entry.rs:104:28
[INFO] [stdout]     |
[INFO] [stdout] 104 |     pub(crate) fn reborrow(&mut self) -> MutPresent<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] 104 |     pub(crate) fn reborrow(&mut self) -> MutPresent<'_, T> {
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/entry/safe_entry.rs:127:27
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub(crate) fn variant(&mut self) -> SpotVariant<MutPresent<T>, 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] 127 |     pub(crate) fn variant(&mut self) -> SpotVariant<MutPresent<'_, T>, T> {
[INFO] [stdout]     |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/entry/safe_entry.rs:134:23
[INFO] [stdout]     |
[INFO] [stdout] 134 |     pub(crate) fn get(&self) -> Option<Present<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] 134 |     pub(crate) fn get(&self) -> Option<Present<'_, T>> {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/entry/safe_entry.rs:141:27
[INFO] [stdout]     |
[INFO] [stdout] 141 |     pub(crate) fn get_mut(&mut self) -> Option<MutPresent<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] 141 |     pub(crate) fn get_mut(&mut self) -> Option<MutPresent<'_, T>> {
[INFO] [stdout]     |                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/region/mod.rs:62:33
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub(crate) fn entry_raw_mut(&mut self, ix: Ix<T>) -> Entry<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] 62 |     pub(crate) fn entry_raw_mut(&mut self, ix: Ix<T>) -> Entry<'_, T> {
[INFO] [stdout]    |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/region/mod.rs:71:25
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub(crate) fn entry(&self, ix: Ix<T>) -> Result<Present<T>, Error> {
[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] 71 |     pub(crate) fn entry(&self, ix: Ix<T>) -> Result<Present<'_, T>, Error> {
[INFO] [stdout]    |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/region/mod.rs:169:21
[INFO] [stdout]     |
[INFO] [stdout] 169 |     pub fn alloc<F>(&mut self, make_t: F) -> Entry<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] 169 |     pub fn alloc<F>(&mut self, make_t: F) -> Entry<'_, T>
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/region/types.rs:133:21
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn reborrow(&mut self) -> Entry<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] 133 |     pub fn reborrow(&mut self) -> Entry<'_, T> {
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/region/collect.rs:376:10
[INFO] [stdout]     |
[INFO] [stdout] 376 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:772:66
[INFO] [stdout]     |
[INFO] [stdout] 772 |                 let mut handle = |mut s: Entry<LList>| -> Option<(Entry<LList>)> {
[INFO] [stdout]     |                                                                  ^            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 772 -                 let mut handle = |mut s: Entry<LList>| -> Option<(Entry<LList>)> {
[INFO] [stdout] 772 +                 let mut handle = |mut s: Entry<LList>| -> Option<Entry<LList>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:634:13
[INFO] [stdout]     |
[INFO] [stdout] 634 |         let mut rt2 = rt1.clone();
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:842:13
[INFO] [stdout]     |
[INFO] [stdout] 842 |         let mut i = 0;
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:809:29
[INFO] [stdout]     |
[INFO] [stdout] 809 |         struct Strategy<'a>(&'a u64);
[INFO] [stdout]     |                --------     ^^^^^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[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/entry/safe_entry.rs:104:28
[INFO] [stdout]     |
[INFO] [stdout] 104 |     pub(crate) fn reborrow(&mut self) -> MutPresent<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] 104 |     pub(crate) fn reborrow(&mut self) -> MutPresent<'_, T> {
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/entry/safe_entry.rs:127:27
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub(crate) fn variant(&mut self) -> SpotVariant<MutPresent<T>, 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] 127 |     pub(crate) fn variant(&mut self) -> SpotVariant<MutPresent<'_, T>, T> {
[INFO] [stdout]     |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/entry/safe_entry.rs:134:23
[INFO] [stdout]     |
[INFO] [stdout] 134 |     pub(crate) fn get(&self) -> Option<Present<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] 134 |     pub(crate) fn get(&self) -> Option<Present<'_, T>> {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/entry/safe_entry.rs:141:27
[INFO] [stdout]     |
[INFO] [stdout] 141 |     pub(crate) fn get_mut(&mut self) -> Option<MutPresent<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] 141 |     pub(crate) fn get_mut(&mut self) -> Option<MutPresent<'_, T>> {
[INFO] [stdout]     |                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/region/mod.rs:62:33
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub(crate) fn entry_raw_mut(&mut self, ix: Ix<T>) -> Entry<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] 62 |     pub(crate) fn entry_raw_mut(&mut self, ix: Ix<T>) -> Entry<'_, T> {
[INFO] [stdout]    |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/region/mod.rs:71:25
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub(crate) fn entry(&self, ix: Ix<T>) -> Result<Present<T>, Error> {
[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] 71 |     pub(crate) fn entry(&self, ix: Ix<T>) -> Result<Present<'_, T>, Error> {
[INFO] [stdout]    |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/region/mod.rs:169:21
[INFO] [stdout]     |
[INFO] [stdout] 169 |     pub fn alloc<F>(&mut self, make_t: F) -> Entry<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] 169 |     pub fn alloc<F>(&mut self, make_t: F) -> Entry<'_, T>
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/region/types.rs:133:21
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn reborrow(&mut self) -> Entry<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] 133 |     pub fn reborrow(&mut self) -> Entry<'_, T> {
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `Command { std: "docker" "inspect" "1bea01c6f5e68c46e10f3203108d4ed3ac330278c3c79c92bcc8d5195fb550ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bea01c6f5e68c46e10f3203108d4ed3ac330278c3c79c92bcc8d5195fb550ba", kill_on_drop: false }`
[INFO] [stdout] 1bea01c6f5e68c46e10f3203108d4ed3ac330278c3c79c92bcc8d5195fb550ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 658021c68c741b23f4d9072aab06af0045d7d953f543e7514ddd1c29e3c8cc30
[INFO] running `Command { std: "docker" "start" "-a" "658021c68c741b23f4d9072aab06af0045d7d953f543e7514ddd1c29e3c8cc30", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/region/collect.rs:376:10
[INFO] [stderr]     |
[INFO] [stderr] 376 |         };
[INFO] [stderr]     |          ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/entry/safe_entry.rs:104:28
[INFO] [stderr]     |
[INFO] [stderr] 104 |     pub(crate) fn reborrow(&mut self) -> MutPresent<T> {
[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] 104 |     pub(crate) fn reborrow(&mut self) -> MutPresent<'_, T> {
[INFO] [stderr]     |                                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/entry/safe_entry.rs:127:27
[INFO] [stderr]     |
[INFO] [stderr] 127 |     pub(crate) fn variant(&mut self) -> SpotVariant<MutPresent<T>, T> {
[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] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 127 |     pub(crate) fn variant(&mut self) -> SpotVariant<MutPresent<'_, T>, T> {
[INFO] [stderr]     |                                                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/entry/safe_entry.rs:134:23
[INFO] [stderr]     |
[INFO] [stderr] 134 |     pub(crate) fn get(&self) -> Option<Present<T>> {
[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] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 134 |     pub(crate) fn get(&self) -> Option<Present<'_, T>> {
[INFO] [stderr]     |                                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/entry/safe_entry.rs:141:27
[INFO] [stderr]     |
[INFO] [stderr] 141 |     pub(crate) fn get_mut(&mut self) -> Option<MutPresent<T>> {
[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] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 141 |     pub(crate) fn get_mut(&mut self) -> Option<MutPresent<'_, T>> {
[INFO] [stderr]     |                                                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/region/mod.rs:62:33
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub(crate) fn entry_raw_mut(&mut self, ix: Ix<T>) -> Entry<T> {
[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] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub(crate) fn entry_raw_mut(&mut self, ix: Ix<T>) -> Entry<'_, T> {
[INFO] [stderr]    |                                                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/region/mod.rs:71:25
[INFO] [stderr]    |
[INFO] [stderr] 71 |     pub(crate) fn entry(&self, ix: Ix<T>) -> Result<Present<T>, Error> {
[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] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 71 |     pub(crate) fn entry(&self, ix: Ix<T>) -> Result<Present<'_, T>, Error> {
[INFO] [stderr]    |                                                             +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/region/mod.rs:169:21
[INFO] [stderr]     |
[INFO] [stderr] 169 |     pub fn alloc<F>(&mut self, make_t: F) -> Entry<T>
[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] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 169 |     pub fn alloc<F>(&mut self, make_t: F) -> Entry<'_, T>
[INFO] [stderr]     |                                                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/region/types.rs:133:21
[INFO] [stderr]     |
[INFO] [stderr] 133 |     pub fn reborrow(&mut self) -> Entry<T> {
[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] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 133 |     pub fn reborrow(&mut self) -> Entry<'_, T> {
[INFO] [stderr]     |                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: `moving_gc_arena` (lib) generated 9 warnings (run `cargo fix --lib -p moving_gc_arena` to apply 8 suggestions)
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:772:66
[INFO] [stderr]     |
[INFO] [stderr] 772 |                 let mut handle = |mut s: Entry<LList>| -> Option<(Entry<LList>)> {
[INFO] [stderr]     |                                                                  ^            ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 772 -                 let mut handle = |mut s: Entry<LList>| -> Option<(Entry<LList>)> {
[INFO] [stderr] 772 +                 let mut handle = |mut s: Entry<LList>| -> Option<Entry<LList>> {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:634:13
[INFO] [stderr]     |
[INFO] [stderr] 634 |         let mut rt2 = rt1.clone();
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:842:13
[INFO] [stderr]     |
[INFO] [stderr] 842 |         let mut i = 0;
[INFO] [stderr]     |             ----^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/lib.rs:809:29
[INFO] [stderr]     |
[INFO] [stderr] 809 |         struct Strategy<'a>(&'a u64);
[INFO] [stderr]     |                --------     ^^^^^^^
[INFO] [stderr]     |                |
[INFO] [stderr]     |                field in this struct
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr]     = help: consider removing this field
[INFO] [stdout] running 20 tests
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `moving_gc_arena` (lib test) generated 13 warnings (9 duplicates) (run `cargo fix --lib -p moving_gc_arena --tests` to apply 3 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/moving_gc_arena-f64c11df714b6c1a)
[INFO] [stdout] test tests::check_impls ... ok
[INFO] [stdout] test tests::deep_clone_into_with ... ok
[INFO] [stdout] test tests::dfs_diamond ... ok
[INFO] [stdout] test tests::deep_clone_sound ... ok
[INFO] [stdout] test tests::entry_ix_weak_commute ... ok
[INFO] [stdout] test tests::indirect_correct ... ok
[INFO] [stdout] test tests::ix_to_root ... ok
[INFO] [stdout] test tests::non_static_strategy ... ok
[INFO] [stdout] test tests::root_ix_roundtrip ... ok
[INFO] [stdout] test tests::traverse_pre_post ... ok
[INFO] [stdout] test tests::traverse_sound ... ok
[INFO] [stdout] test tests::roots_are_root ... ok
[INFO] [stdout] test tests::weak_to_root ... ok
[INFO] [stdout] test tests::upgrades_well_behaved ... ok
[INFO] [stdout] test tests::weak_ix_roundtrip ... ok
[INFO] [stdout] test tests::weaks_are_weak ... ok
[INFO] [stdout] test tests::root_weak_roundtrip ... ok
[INFO] [stdout] test tests::invalid_ix_in_gc - should panic ... ok
[INFO] [stdout] test tests::print_external_references ... ok
[INFO] [stdout] test tests::simple_strategy ... ok
[INFO] [stderr]    Doc-tests moving_gc_arena
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.12s
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/region/collect.rs:376:10
[INFO] [stderr]     |
[INFO] [stderr] 376 |         };
[INFO] [stderr]     |          ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/region/mod.rs - region::Region<T>::gc (line 190) ... ok
[INFO] [stdout] test src/region/mod.rs - region::Region<T>::traverse_with (line 293) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.44s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "658021c68c741b23f4d9072aab06af0045d7d953f543e7514ddd1c29e3c8cc30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "658021c68c741b23f4d9072aab06af0045d7d953f543e7514ddd1c29e3c8cc30", kill_on_drop: false }`
[INFO] [stdout] 658021c68c741b23f4d9072aab06af0045d7d953f543e7514ddd1c29e3c8cc30