[INFO] fetching crate littletest 0.2.2...
[INFO] checking littletest-0.2.2 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate littletest 0.2.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate littletest 0.2.2 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate littletest 0.2.2
[INFO] finished tweaking crates.io crate littletest 0.2.2
[INFO] tweaked toml for crates.io crate littletest 0.2.2 written to /workspace/builds/worker-4/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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] ca66bcbb4fd426624ab52684a0a0d75c06118e7a2bbbf069e2decfcd16d3d1cd
[INFO] running `"docker" "start" "-a" "ca66bcbb4fd426624ab52684a0a0d75c06118e7a2bbbf069e2decfcd16d3d1cd"`
[INFO] [stderr]     Checking deque v0.3.2
[INFO] [stderr]     Checking rayon v0.5.0
[INFO] [stderr]     Checking littletest v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reporters.rs:13:24
[INFO] [stderr]    |
[INFO] [stderr] 13 |     reporters: Vec<Box<Reporter>>,
[INFO] [stderr]    |                        ^^^^^^^^ help: use `dyn`: `dyn Reporter`
[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/reporters.rs:17:35
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn new(reporters: Vec<Box<Reporter>>) -> CompositeReporter {
[INFO] [stderr]    |                                   ^^^^^^^^ help: use `dyn`: `dyn Reporter`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:25:45
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn run<'run>(&self, tests: &Vec<Box<Runnable + Sync + 'run>>) {
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Runnable + Sync + 'run`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:26:32
[INFO] [stderr]    |
[INFO] [stderr] 26 |         let reporters: Vec<Box<Reporter>> = vec![Box::new(ProgressReporter::new()),
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn Reporter`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reporters.rs:13:24
[INFO] [stderr]    |
[INFO] [stderr] 13 |     reporters: Vec<Box<Reporter>>,
[INFO] [stderr]    |                        ^^^^^^^^ help: use `dyn`: `dyn Reporter`
[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/reporters.rs:17:35
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn new(reporters: Vec<Box<Reporter>>) -> CompositeReporter {
[INFO] [stderr]    |                                   ^^^^^^^^ help: use `dyn`: `dyn Reporter`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:25:45
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn run<'run>(&self, tests: &Vec<Box<Runnable + Sync + 'run>>) {
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Runnable + Sync + 'run`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:26:32
[INFO] [stderr]    |
[INFO] [stderr] 26 |         let reporters: Vec<Box<Reporter>> = vec![Box::new(ProgressReporter::new()),
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn Reporter`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/lib.rs:27:62
[INFO] [stderr]    |
[INFO] [stderr] 27 |         .map(|result| Box::new(TestCase::new(result)) as Box<Runnable + Sync>)
[INFO] [stderr]    |                                                              ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Runnable + Sync`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.97s
[INFO] running `"docker" "inspect" "ca66bcbb4fd426624ab52684a0a0d75c06118e7a2bbbf069e2decfcd16d3d1cd"`
[INFO] running `"docker" "rm" "-f" "ca66bcbb4fd426624ab52684a0a0d75c06118e7a2bbbf069e2decfcd16d3d1cd"`
[INFO] [stdout] ca66bcbb4fd426624ab52684a0a0d75c06118e7a2bbbf069e2decfcd16d3d1cd