[INFO] fetching crate mlsub 0.1.0...
[INFO] testing mlsub-0.1.0 against master#0d162b25edd5bf0dba9a22e83b614f1113e90474 for pr-150681
[INFO] extracting crate mlsub 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate mlsub 0.1.0
[INFO] finished tweaking crates.io crate mlsub 0.1.0
[INFO] tweaked toml for crates.io crate mlsub 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mlsub 0.1.0 on toolchain 0d162b25edd5bf0dba9a22e83b614f1113e90474
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "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" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 57 packages to latest compatible versions
[INFO] [stderr]       Adding itertools v0.9.0 (available: v0.14.0)
[INFO] [stderr]       Adding proptest v0.10.1 (available: v1.9.0)
[INFO] [stderr]       Adding rand v0.7.3 (available: v0.9.2)
[INFO] [stderr]       Adding rand_distr v0.3.0 (available: v0.5.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded iter-set v2.0.2
[INFO] [stderr]   Downloaded rand_xorshift v0.2.0
[INFO] [stderr]   Downloaded small-ord-set v0.1.3
[INFO] [stderr]   Downloaded rand_distr v0.3.0
[INFO] [stderr]   Downloaded proptest v0.10.1
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c529ea99cc23ac4706142bde32ccae3fe0ea53e84c7b72960df95744924f06d
[INFO] running `Command { std: "docker" "start" "-a" "2c529ea99cc23ac4706142bde32ccae3fe0ea53e84c7b72960df95744924f06d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c529ea99cc23ac4706142bde32ccae3fe0ea53e84c7b72960df95744924f06d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c529ea99cc23ac4706142bde32ccae3fe0ea53e84c7b72960df95744924f06d", kill_on_drop: false }`
[INFO] [stdout] 2c529ea99cc23ac4706142bde32ccae3fe0ea53e84c7b72960df95744924f06d
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac38cd31b68304fdb9fb8911c49ba8c51ef94701131b2c0eeef3ba9e857100e1
[INFO] running `Command { std: "docker" "start" "-a" "ac38cd31b68304fdb9fb8911c49ba8c51ef94701131b2c0eeef3ba9e857100e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling im v15.1.0
[INFO] [stderr]    Compiling bitmaps v2.1.0
[INFO] [stderr]    Compiling seahash v4.1.0
[INFO] [stderr]    Compiling rand_xoshiro v0.6.0
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling small-ord-set v0.1.3
[INFO] [stderr]    Compiling sized-chunks v0.6.5
[INFO] [stderr]    Compiling mlsub v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/subsume/mod.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |             unimplemented!();
[INFO] [stdout]    |             ---------------- any code following this expression is unreachable
[INFO] [stdout] 46 |
[INFO] [stdout] 47 |             self.remove_flow(pair);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_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/auto/state/set.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn iter(&self) -> Copied<slice::Iter<StateId>> {
[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] 29 |     pub fn iter(&self) -> Copied<slice::Iter<'_, StateId>> {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/auto/build/polar.rs:40:51
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub(crate) fn simple_builder(&'a mut self) -> Builder<C, ()> {
[INFO] [stdout]    |                                   --              ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub(crate) fn simple_builder(&'a mut self) -> Builder<'a, C, ()> {
[INFO] [stdout]    |                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.34s
[INFO] running `Command { std: "docker" "inspect" "ac38cd31b68304fdb9fb8911c49ba8c51ef94701131b2c0eeef3ba9e857100e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac38cd31b68304fdb9fb8911c49ba8c51ef94701131b2c0eeef3ba9e857100e1", kill_on_drop: false }`
[INFO] [stdout] ac38cd31b68304fdb9fb8911c49ba8c51ef94701131b2c0eeef3ba9e857100e1
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 071d6e6eae3706dc28e8f89a0a38492b920b3b03cfeeec2992a8d849f6ee4b5e
[INFO] running `Command { std: "docker" "start" "-a" "071d6e6eae3706dc28e8f89a0a38492b920b3b03cfeeec2992a8d849f6ee4b5e", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling wait-timeout v0.2.1
[INFO] [stderr]    Compiling iter-set v2.0.2
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/subsume/mod.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |             unimplemented!();
[INFO] [stdout]    |             ---------------- any code following this expression is unreachable
[INFO] [stdout] 46 |
[INFO] [stdout] 47 |             self.remove_flow(pair);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_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/auto/state/set.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn iter(&self) -> Copied<slice::Iter<StateId>> {
[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] 29 |     pub fn iter(&self) -> Copied<slice::Iter<'_, StateId>> {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/auto/build/polar.rs:40:51
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub(crate) fn simple_builder(&'a mut self) -> Builder<C, ()> {
[INFO] [stdout]    |                                   --              ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub(crate) fn simple_builder(&'a mut self) -> Builder<'a, C, ()> {
[INFO] [stdout]    |                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rusty-fork v0.3.1
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_xorshift v0.2.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling proptest v0.10.1
[INFO] [stderr]    Compiling rand_distr v0.3.0
[INFO] [stderr]    Compiling mlsub v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/subsume/mod.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |             unimplemented!();
[INFO] [stdout]    |             ---------------- any code following this expression is unreachable
[INFO] [stdout] 46 |
[INFO] [stdout] 47 |             self.remove_flow(pair);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_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/auto/state/set.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn iter(&self) -> Copied<slice::Iter<StateId>> {
[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] 29 |     pub fn iter(&self) -> Copied<slice::Iter<'_, StateId>> {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/auto/build/polar.rs:33:10
[INFO] [stdout]    |
[INFO] [stdout] 32 |         &'a mut self,
[INFO] [stdout]    |          -- the lifetime is named here
[INFO] [stdout] 33 |     ) -> Builder<C, HashMap<V, flow::Pair>> {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 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: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 33 |     ) -> Builder<'a, C, HashMap<V, flow::Pair>> {
[INFO] [stdout]    |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/auto/build/polar.rs:40:51
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub(crate) fn simple_builder(&'a mut self) -> Builder<C, ()> {
[INFO] [stdout]    |                                   --              ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub(crate) fn simple_builder(&'a mut self) -> Builder<'a, C, ()> {
[INFO] [stdout]    |                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 13.01s
[INFO] running `Command { std: "docker" "inspect" "071d6e6eae3706dc28e8f89a0a38492b920b3b03cfeeec2992a8d849f6ee4b5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "071d6e6eae3706dc28e8f89a0a38492b920b3b03cfeeec2992a8d849f6ee4b5e", kill_on_drop: false }`
[INFO] [stdout] 071d6e6eae3706dc28e8f89a0a38492b920b3b03cfeeec2992a8d849f6ee4b5e
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e6abf8435143eac02e4f7ac98ce8b13ecb52f90237fbb561054b09cdd5d02e9b
[INFO] running `Command { std: "docker" "start" "-a" "e6abf8435143eac02e4f7ac98ce8b13ecb52f90237fbb561054b09cdd5d02e9b", kill_on_drop: false }`
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/subsume/mod.rs:47:13
[INFO] [stderr]    |
[INFO] [stderr] 45 |             unimplemented!();
[INFO] [stderr]    |             ---------------- any code following this expression is unreachable
[INFO] [stderr] 46 |
[INFO] [stderr] 47 |             self.remove_flow(pair);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/auto/state/set.rs:29:17
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn iter(&self) -> Copied<slice::Iter<StateId>> {
[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] 29 |     pub fn iter(&self) -> Copied<slice::Iter<'_, StateId>> {
[INFO] [stderr]    |                                              +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stderr]   --> src/auto/build/polar.rs:40:51
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub(crate) fn simple_builder(&'a mut self) -> Builder<C, ()> {
[INFO] [stderr]    |                                   --              ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                                   |
[INFO] [stderr]    |                                   the lifetime is named here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub(crate) fn simple_builder(&'a mut self) -> Builder<'a, C, ()> {
[INFO] [stderr]    |                                                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: `mlsub` (lib) generated 3 warnings (run `cargo fix --lib -p mlsub` to apply 2 suggestions)
[INFO] [stderr] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stderr]   --> src/auto/build/polar.rs:33:10
[INFO] [stderr]    |
[INFO] [stderr] 32 |         &'a mut self,
[INFO] [stderr]    |          -- the lifetime is named here
[INFO] [stderr] 33 |     ) -> Builder<C, HashMap<V, flow::Pair>> {
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 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: consistently use `'a`
[INFO] [stderr]    |
[INFO] [stderr] 33 |     ) -> Builder<'a, C, HashMap<V, flow::Pair>> {
[INFO] [stderr]    |                  +++
[INFO] [stderr] 
[INFO] [stderr] warning: `mlsub` (lib test) generated 4 warnings (3 duplicates) (run `cargo fix --lib -p mlsub --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mlsub-0467666bd8c6e19b)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test biunify::tests::constructed ... ok
[INFO] [stdout] test tests::arbitrary::polar_neg ... ok
[INFO] [stdout] test tests::arbitrary::auto_pos ... ok
[INFO] [stdout] test tests::arbitrary::auto_neg ... ok
[INFO] [stdout] test tests::arbitrary::polar_pos ... ok
[INFO] [stdout] test auto::reduce::tests::reduce_one_pos ... ok
[INFO] [stdout] test auto::reduce::tests::reduce_one_neg ... ok
[INFO] [stdout] test biunify::tests::biunify_reduced ... ok
[INFO] [stdout] test biunify::tests::biunify ... ok
[INFO] [stdout] test biunify::tests::biunify_all ... ok
[INFO] [stdout] test biunify::tests::biunify_all_reduced has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "e6abf8435143eac02e4f7ac98ce8b13ecb52f90237fbb561054b09cdd5d02e9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6abf8435143eac02e4f7ac98ce8b13ecb52f90237fbb561054b09cdd5d02e9b", kill_on_drop: false }`
[INFO] [stdout] e6abf8435143eac02e4f7ac98ce8b13ecb52f90237fbb561054b09cdd5d02e9b
