[INFO] fetching crate immutable-seq 0.1.2...
[INFO] checking immutable-seq-0.1.2 against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] extracting crate immutable-seq 0.1.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate immutable-seq 0.1.2 on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "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-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7d1a82357a236920d3f2022ecfe97a185b4661054822f54b2dc7495d46d0cfdf
[INFO] running `Command { std: "docker" "start" "-a" "7d1a82357a236920d3f2022ecfe97a185b4661054822f54b2dc7495d46d0cfdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d1a82357a236920d3f2022ecfe97a185b4661054822f54b2dc7495d46d0cfdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d1a82357a236920d3f2022ecfe97a185b4661054822f54b2dc7495d46d0cfdf", kill_on_drop: false }`
[INFO] [stdout] 7d1a82357a236920d3f2022ecfe97a185b4661054822f54b2dc7495d46d0cfdf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6b43d354519ba263413cdc5639036138e6932e69540e445d95608d83de8e39a7
[INFO] running `Command { std: "docker" "start" "-a" "6b43d354519ba263413cdc5639036138e6932e69540e445d95608d83de8e39a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]     Checking debug_unreachable v0.1.1
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking quickcheck v0.4.1
[INFO] [stderr]     Checking 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: 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: use of deprecated item '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 dev [unoptimized + debuginfo] target(s) in 6.12s
[INFO] running `Command { std: "docker" "inspect" "6b43d354519ba263413cdc5639036138e6932e69540e445d95608d83de8e39a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b43d354519ba263413cdc5639036138e6932e69540e445d95608d83de8e39a7", kill_on_drop: false }`
[INFO] [stdout] 6b43d354519ba263413cdc5639036138e6932e69540e445d95608d83de8e39a7