[INFO] fetching crate immutable-seq 0.1.2...
[INFO] checking immutable-seq-0.1.2 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate immutable-seq 0.1.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate immutable-seq 0.1.2 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 62f351e0810ce902990ae871e279dad17c8bbc53c59823ff21fcb243dd9fc9cb
[INFO] running `"docker" "start" "-a" "62f351e0810ce902990ae871e279dad17c8bbc53c59823ff21fcb243dd9fc9cb"`
[INFO] [stderr]     Checking immutable-seq v0.1.2 (/opt/rustwide/workdir)
[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_semicolon)]` 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: 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_semicolon)]` 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: use of deprecated item '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]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `"docker" "inspect" "62f351e0810ce902990ae871e279dad17c8bbc53c59823ff21fcb243dd9fc9cb"`
[INFO] running `"docker" "rm" "-f" "62f351e0810ce902990ae871e279dad17c8bbc53c59823ff21fcb243dd9fc9cb"`
[INFO] [stdout] 62f351e0810ce902990ae871e279dad17c8bbc53c59823ff21fcb243dd9fc9cb