[INFO] fetching crate immutable-seq 0.1.2...
[INFO] testing immutable-seq-0.1.2 against 1.47.0 for beta-1.48-1
[INFO] extracting crate immutable-seq 0.1.2 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate immutable-seq 0.1.2 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate immutable-seq 0.1.2
[INFO] finished tweaking crates.io crate immutable-seq 0.1.2
[INFO] tweaked toml for crates.io crate immutable-seq 0.1.2 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 973de8a0cce4372f159b09d502ec9923ae54de2c4af18ae5502923af465479c2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "973de8a0cce4372f159b09d502ec9923ae54de2c4af18ae5502923af465479c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "973de8a0cce4372f159b09d502ec9923ae54de2c4af18ae5502923af465479c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "973de8a0cce4372f159b09d502ec9923ae54de2c4af18ae5502923af465479c2", kill_on_drop: false }`
[INFO] [stdout] 973de8a0cce4372f159b09d502ec9923ae54de2c4af18ae5502923af465479c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f694001d2c7564f3c437ca38dd907d1e056218b14f8d20ab900442ccc22dea1c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f694001d2c7564f3c437ca38dd907d1e056218b14f8d20ab900442ccc22dea1c", kill_on_drop: false }`
[INFO] [stderr]    Compiling unreachable v0.1.1
[INFO] [stderr]    Compiling quickcheck v0.4.1
[INFO] [stderr]    Compiling debug_unreachable v0.1.1
[INFO] [stderr]    Compiling immutable-seq v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lazy.rs:183:16
[INFO] [stdout]     |
[INFO] [stdout] 183 |     inner: Box<Invoke<T>>
[INFO] [stdout]     |                ^^^^^^^^^ help: use `dyn`: `dyn Invoke<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lazy.rs:197:23
[INFO] [stdout]     |
[INFO] [stdout] 197 |             }) as Box<Invoke<T>>
[INFO] [stdout]     |                       ^^^^^^^^^ help: use `dyn`: `dyn Invoke<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/lazy.rs:28:49
[INFO] [stdout]    |
[INFO] [stdout] 28 |         $crate::lazy::Thunk::new(move || { $($e);* })
[INFO] [stdout]    |                                                 ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/lazy.rs:28:49
[INFO] [stdout]    |
[INFO] [stdout] 28 |         $crate::lazy::Thunk::new(move || { $($e);* })
[INFO] [stdout]    |                                                 ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/lazy.rs:36:56
[INFO] [stdout]    |
[INFO] [stdout] 36 |         $crate::lazy::Thunk::new(move || { value({$($e);*}) })
[INFO] [stdout]    |                                                        ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.95s
[INFO] running `Command { std: "docker" "inspect" "f694001d2c7564f3c437ca38dd907d1e056218b14f8d20ab900442ccc22dea1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f694001d2c7564f3c437ca38dd907d1e056218b14f8d20ab900442ccc22dea1c", kill_on_drop: false }`
[INFO] [stdout] f694001d2c7564f3c437ca38dd907d1e056218b14f8d20ab900442ccc22dea1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b70b5a0b1a5cebfe6caff0be9997e38e3c9505f340c370a1eafd613d98dc38e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3b70b5a0b1a5cebfe6caff0be9997e38e3c9505f340c370a1eafd613d98dc38e", kill_on_drop: false }`
[INFO] [stderr]    Compiling immutable-seq v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lazy.rs:183:16
[INFO] [stdout]     |
[INFO] [stdout] 183 |     inner: Box<Invoke<T>>
[INFO] [stdout]     |                ^^^^^^^^^ help: use `dyn`: `dyn Invoke<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lazy.rs:197:23
[INFO] [stdout]     |
[INFO] [stdout] 197 |             }) as Box<Invoke<T>>
[INFO] [stdout]     |                       ^^^^^^^^^ help: use `dyn`: `dyn Invoke<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/lazy.rs:28:49
[INFO] [stdout]    |
[INFO] [stdout] 28 |         $crate::lazy::Thunk::new(move || { $($e);* })
[INFO] [stdout]    |                                                 ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/lazy.rs:28:49
[INFO] [stdout]    |
[INFO] [stdout] 28 |         $crate::lazy::Thunk::new(move || { $($e);* })
[INFO] [stdout]    |                                                 ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/lazy.rs:36:56
[INFO] [stdout]    |
[INFO] [stdout] 36 |         $crate::lazy::Thunk::new(move || { value({$($e);*}) })
[INFO] [stdout]    |                                                        ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lazy.rs:183:16
[INFO] [stdout]     |
[INFO] [stdout] 183 |     inner: Box<Invoke<T>>
[INFO] [stdout]     |                ^^^^^^^^^ help: use `dyn`: `dyn Invoke<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lazy.rs:197:23
[INFO] [stdout]     |
[INFO] [stdout] 197 |             }) as Box<Invoke<T>>
[INFO] [stdout]     |                       ^^^^^^^^^ help: use `dyn`: `dyn Invoke<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/lazy.rs:28:49
[INFO] [stdout]    |
[INFO] [stdout] 28 |         $crate::lazy::Thunk::new(move || { $($e);* })
[INFO] [stdout]    |                                                 ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/lazy.rs:28:49
[INFO] [stdout]    |
[INFO] [stdout] 28 |         $crate::lazy::Thunk::new(move || { $($e);* })
[INFO] [stdout]    |                                                 ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/lazy.rs:36:56
[INFO] [stdout]    |
[INFO] [stdout] 36 |         $crate::lazy::Thunk::new(move || { value({$($e);*}) })
[INFO] [stdout]    |                                                        ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> tests/seq_quickcheck.rs:522:13
[INFO] [stdout]     |
[INFO] [stdout] 522 |             try!(self.apply_action(action))
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/seq_quickcheck.rs:150:29
[INFO] [stdout]     |
[INFO] [stdout] 150 |     fn shrink(&self) -> Box<Iterator<Item=Action<T>>> {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Action<T>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/seq_quickcheck.rs:320:26
[INFO] [stdout]     |
[INFO] [stdout] 320 |     action_shrinker: Box<Iterator<Item=Action<T>>>,
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Action<T>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/seq_quickcheck.rs:368:29
[INFO] [stdout]     |
[INFO] [stdout] 368 |     fn shrink(&self) -> Box<Iterator<Item=ActionSeries<T>>> {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=ActionSeries<T>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.65s
[INFO] running `Command { std: "docker" "inspect" "3b70b5a0b1a5cebfe6caff0be9997e38e3c9505f340c370a1eafd613d98dc38e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b70b5a0b1a5cebfe6caff0be9997e38e3c9505f340c370a1eafd613d98dc38e", kill_on_drop: false }`
[INFO] [stdout] 3b70b5a0b1a5cebfe6caff0be9997e38e3c9505f340c370a1eafd613d98dc38e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f0454b7352dc95f6f78150417fa3d4065f395bce88f368af8b9ea5b036d6fc54
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f0454b7352dc95f6f78150417fa3d4065f395bce88f368af8b9ea5b036d6fc54", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lazy.rs:183:16
[INFO] [stderr]     |
[INFO] [stderr] 183 |     inner: Box<Invoke<T>>
[INFO] [stderr]     |                ^^^^^^^^^ help: use `dyn`: `dyn Invoke<T>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lazy.rs:197:23
[INFO] [stderr]     |
[INFO] [stderr] 197 |             }) as Box<Invoke<T>>
[INFO] [stderr]     |                       ^^^^^^^^^ help: use `dyn`: `dyn Invoke<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/lazy.rs:28:49
[INFO] [stderr]    |
[INFO] [stderr] 28 |         $crate::lazy::Thunk::new(move || { $($e);* })
[INFO] [stderr]    |                                                 ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/lazy.rs:28:49
[INFO] [stderr]    |
[INFO] [stderr] 28 |         $crate::lazy::Thunk::new(move || { $($e);* })
[INFO] [stderr]    |                                                 ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/lazy.rs:36:56
[INFO] [stderr]    |
[INFO] [stderr] 36 |         $crate::lazy::Thunk::new(move || { value({$($e);*}) })
[INFO] [stderr]    |                                                        ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lazy.rs:183:16
[INFO] [stderr]     |
[INFO] [stderr] 183 |     inner: Box<Invoke<T>>
[INFO] [stderr]     |                ^^^^^^^^^ help: use `dyn`: `dyn Invoke<T>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lazy.rs:197:23
[INFO] [stderr]     |
[INFO] [stderr] 197 |             }) as Box<Invoke<T>>
[INFO] [stderr]     |                       ^^^^^^^^^ help: use `dyn`: `dyn Invoke<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/lazy.rs:28:49
[INFO] [stderr]    |
[INFO] [stderr] 28 |         $crate::lazy::Thunk::new(move || { $($e);* })
[INFO] [stderr]    |                                                 ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/lazy.rs:28:49
[INFO] [stderr]    |
[INFO] [stderr] 28 |         $crate::lazy::Thunk::new(move || { $($e);* })
[INFO] [stderr]    |                                                 ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/lazy.rs:36:56
[INFO] [stderr]    |
[INFO] [stderr] 36 |         $crate::lazy::Thunk::new(move || { value({$($e);*}) })
[INFO] [stderr]    |                                                        ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> tests/seq_quickcheck.rs:522:13
[INFO] [stderr]     |
[INFO] [stderr] 522 |             try!(self.apply_action(action))
[INFO] [stderr]     |             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/seq_quickcheck.rs:150:29
[INFO] [stderr]     |
[INFO] [stderr] 150 |     fn shrink(&self) -> Box<Iterator<Item=Action<T>>> {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Action<T>>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/seq_quickcheck.rs:320:26
[INFO] [stderr]     |
[INFO] [stderr] 320 |     action_shrinker: Box<Iterator<Item=Action<T>>>,
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Action<T>>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/seq_quickcheck.rs:368:29
[INFO] [stderr]     |
[INFO] [stderr] 368 |     fn shrink(&self) -> Box<Iterator<Item=ActionSeries<T>>> {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=ActionSeries<T>>`
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stdout] running 13 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/immutable_seq-b7acfa3ab15cf5b4
[INFO] [stdout] test finger_tree::test::test_iter_inner_single ... ok
[INFO] [stdout] test node::test::test_node_iter ... ok
[INFO] [stdout] test node::test::test_tree23_measure ... ok
[INFO] [stdout] test lazy::test::test_thunk_should_evaluate_through_redirect ... ok
[INFO] [stdout] test lazy::test::test_strict_should_produce_already_evaluated_thunk ... ok
[INFO] [stderr] thread '<unnamed>' panicked at 'Muahahahah', src/lazy.rs:288:17
[INFO] [stderr] stack backtrace:
[INFO] [stdout] test digit::test::test_digit_iter ... ok
[INFO] [stdout] test lazy::test::test_thunk_should_evaluate_just_once ... ok
[INFO] [stdout] test lazy::test::test_thunk_should_evaluate_when_accessed ... ok
[INFO] [stdout] test lazy::test::test_thunk_should_not_evaluate_if_not_accessed ... ok
[INFO] [stdout] test finger_tree::test::test_iter_inner_empty ... ok
[INFO] [stdout] test finger_tree::test::test_iter_empty ... ok
[INFO] [stdout] test finger_tree::test::test_iter_single ... ok
[INFO] [stderr]    0:     0x564af2a7fdc0 - std::backtrace_rs::backtrace::libunwind::trace::h577ea05e9ca4629a
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stderr]    1:     0x564af2a7fdc0 - std::backtrace_rs::backtrace::trace_unsynchronized::h50b9b72b84c7dd56
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x564af2a7fdc0 - std::sys_common::backtrace::_print_fmt::h6541cf9823837fac
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:79
[INFO] [stderr]    3:     0x564af2a7fdc0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hf64fbff071026df5
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:58
[INFO] [stderr]    4:     0x564af2aa2c0c - core::fmt::write::h9ddafa4860d8adff
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/fmt/mod.rs:1082
[INFO] [stderr]    5:     0x564af2a7ca47 - std::io::Write::write_fmt::h1d2ee292d2b65481
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/io/mod.rs:1514
[INFO] [stderr]    6:     0x564af2a82240 - std::sys_common::backtrace::_print::ha25f9ff5080d886d
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:61
[INFO] [stderr]    7:     0x564af2a82240 - std::sys_common::backtrace::print::h213e8aa8dc5405c0
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:48
[INFO] [stderr]    8:     0x564af2a82240 - std::panicking::default_hook::{{closure}}::h6482fae49ef9d963
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:200
[INFO] [stderr]    9:     0x564af2a81f8c - std::panicking::default_hook::he30ad7589e0970f9
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:219
[INFO] [stderr]   10:     0x564af2a828a3 - std::panicking::rust_panic_with_hook::haa1ed36ada4ffb03
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:569
[INFO] [stderr]   11:     0x564af2a19508 - std::panicking::begin_panic::{{closure}}::h9723d137d69f4952
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:498
[INFO] [stderr]   12:     0x564af2a0d748 - std::sys_common::backtrace::__rust_end_short_backtrace::h6676b92371cc065f
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:153
[INFO] [stderr]   13:     0x564af2a19433 - std::panicking::begin_panic::had08b9f0b01ae9a2
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:497
[INFO] [stderr]   14:     0x564af2a124eb - immutable_seq::lazy::test::test_drop_internal_data_just_once::{{closure}}::{{closure}}::h74bc39683c1da8c4
[INFO] [stderr]                                at /opt/rustwide/workdir/src/lazy.rs:288
[INFO] [stderr]   15:     0x564af2a05c4e - immutable_seq::lazy::Producer<T>::new::{{closure}}::hf0a105a9f163a06b
[INFO] [stderr]                                at /opt/rustwide/workdir/src/lazy.rs:196
[INFO] [stderr]   16:     0x564af2a05e0e - <F as immutable_seq::lazy::Invoke<T>>::invoke::h04f5e3f095024697
[INFO] [stderr]                                at /opt/rustwide/workdir/src/lazy.rs:224
[INFO] [stderr]   17:     0x564af2a05d01 - immutable_seq::lazy::Producer<T>::invoke::h5f6e229754741760
[INFO] [stderr]                                at /opt/rustwide/workdir/src/lazy.rs:202
[INFO] [stderr]   18:     0x564af2a03031 - immutable_seq::lazy::Thunk<T>::force::h5de02ac3067e620c
[INFO] [stderr]                                at /opt/rustwide/workdir/src/lazy.rs:108
[INFO] [stderr]   19:     0x564af2a12551 - immutable_seq::lazy::test::test_drop_internal_data_just_once::{{closure}}::ha4f3e4065a4cef0f
[INFO] [stderr]                                at /opt/rustwide/workdir/src/lazy.rs:290
[INFO] [stderr]   20:     0x564af2a0d77e - std::sys_common::backtrace::__rust_begin_short_backtrace::h69a48df7f77a0ad5
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:137
[INFO] [stderr]   21:     0x564af2a26eba - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::he30d1ab287055afb
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/mod.rs:458
[INFO] [stderr]   22:     0x564af2a262fe - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4d2c85349410c038
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:308
[INFO] [stderr]   23:     0x564af2a195fa - std::panicking::try::do_call::h31e11e6543ff7181
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:373
[INFO] [stderr]   24:     0x564af2a1b4cd - __rust_try
[INFO] [stderr]   25:     0x564af2a19567 - std::panicking::try::hb40c263f0b9a5f22
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:337
[INFO] [stderr]   26:     0x564af2a2649e - std::panic::catch_unwind::h1f27113ed2147985
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:379
[INFO] [stderr]   27:     0x564af2a26cee - std::thread::Builder::spawn_unchecked::{{closure}}::h674ad93fad4e2a3d
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/mod.rs:457
[INFO] [stderr]   28:     0x564af2a1e46e - core::ops::function::FnOnce::call_once{{vtable.shim}}::hab168047f1d21e76
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:227
[INFO] [stderr]   29:     0x564af2a8905a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h670c50864ac2cb92
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/alloc/src/boxed.rs:1042
[INFO] [stderr]   30:     0x564af2a8905a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h2511952749086d81
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/alloc/src/boxed.rs:1042
[INFO] [stderr]   31:     0x564af2a8905a - std::sys::unix::thread::Thread::new::thread_start::h5ad4ddffe24373a8
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys/unix/thread.rs:87
[INFO] [stderr]   32:     0x7fa55acbc609 - start_thread
[INFO] [stderr]   33:     0x7fa55abc8103 - clone
[INFO] [stderr]   34:                0x0 - <unknown>
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/seq-c4dee0c90257028f
[INFO] [stdout] test lazy::test::test_drop_internal_data_just_once ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test test_back_empty ... ok
[INFO] [stdout] test test_front_nonempty ... ok
[INFO] [stdout] test test_adjust ... ok
[INFO] [stdout] test test_get_nonempty ... ok
[INFO] [stdout] test test_index ... ok
[INFO] [stdout] test test_back_nonempty ... ok
[INFO] [stdout] test test_get_out_of_bounds ... ok
[INFO] [stdout] test test_front_empty ... ok
[INFO] [stdout] test test_back_pop_back ... ok
[INFO] [stdout] test test_iter_append ... ok
[INFO] [stdout] test test_front_pop_front ... ok
[INFO] [stdout] test test_empty_len ... ok
[INFO] [stdout] test test_get_empty ... ok
[INFO] [stdout] test test_insert ... ok
[INFO] [stdout] test test_iter_push_back ... ok
[INFO] [stdout] test test_empty_is_empty ... ok
[INFO] [stdout] test test_truncate ... ok
[INFO] [stdout] test test_update ... ok
[INFO] [stdout] test test_vec_macro ... ok
[INFO] [stdout] test test_singleton_len ... ok
[INFO] [stdout] test test_skip ... ok
[INFO] [stdout] test test_iter_singleton ... ok
[INFO] [stdout] test test_iter_push_front ... ok
[INFO] [stdout] test test_singleton_not_is_empty ... ok
[INFO] [stdout] test test_iter_empty ... ok
[INFO] [stdout] test test_split ... ok
[INFO] [stdout] test test_split_empty ... ok
[INFO] [stdout] test test_split_singleton ... ok
[INFO] [stdout] test test_remove ... ok
[INFO] [stdout] test test_index_out_of_bounds ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/seq_quickcheck-7b989d9f38355c66
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_action_series_drop_slot ... ok
[INFO] [stdout] test test_check_temp ... ok
[INFO] [stderr]    Doc-tests immutable-seq
[INFO] [stdout] test check_model_u32 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lazy.rs:28:49
[INFO] [stderr]    |
[INFO] [stderr] 28 |         $crate::lazy::Thunk::new(move || { $($e);* })
[INFO] [stderr]    |                                                 ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lazy.rs:28:49
[INFO] [stderr]    |
[INFO] [stderr] 28 |         $crate::lazy::Thunk::new(move || { $($e);* })
[INFO] [stderr]    |                                                 ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lazy.rs:36:56
[INFO] [stderr]    |
[INFO] [stderr] 36 |         $crate::lazy::Thunk::new(move || { value({$($e);*}) })
[INFO] [stderr]    |                                                        ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lazy.rs - lazy (line 13) ... ignored
[INFO] [stdout] test src/lazy.rs - lazy::Thunk<T>::new (line 72) ... ignored
[INFO] [stdout] test src/seq.rs - seq (line 182) ... ok
[INFO] [stdout] test src/seq.rs - seq (line 193) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f0454b7352dc95f6f78150417fa3d4065f395bce88f368af8b9ea5b036d6fc54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0454b7352dc95f6f78150417fa3d4065f395bce88f368af8b9ea5b036d6fc54", kill_on_drop: false }`
[INFO] [stdout] f0454b7352dc95f6f78150417fa3d4065f395bce88f368af8b9ea5b036d6fc54
