[INFO] fetching crate littletest 0.2.2...
[INFO] checking littletest-0.2.2 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate littletest 0.2.2 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate littletest 0.2.2 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2da1c99381d053dece093d76f3df4abafacde2ac37bdc29176c496b5a4cbe228
[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" "2da1c99381d053dece093d76f3df4abafacde2ac37bdc29176c496b5a4cbe228", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2da1c99381d053dece093d76f3df4abafacde2ac37bdc29176c496b5a4cbe228", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2da1c99381d053dece093d76f3df4abafacde2ac37bdc29176c496b5a4cbe228", kill_on_drop: false }`
[INFO] [stdout] 2da1c99381d053dece093d76f3df4abafacde2ac37bdc29176c496b5a4cbe228
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5991eff5161b5b6ad4bcf60130336b2f369d1317b35af62abafc28deb9f2063
[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" "a5991eff5161b5b6ad4bcf60130336b2f369d1317b35af62abafc28deb9f2063", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]     Checking deque v0.3.2
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking rayon v0.5.0
[INFO] [stderr]     Checking littletest v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reporters.rs:13:24
[INFO] [stdout]    |
[INFO] [stdout] 13 |     reporters: Vec<Box<Reporter>>,
[INFO] [stdout]    |                        ^^^^^^^^ help: use `dyn`: `dyn Reporter`
[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/reporters.rs:17:35
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new(reporters: Vec<Box<Reporter>>) -> CompositeReporter {
[INFO] [stdout]    |                                   ^^^^^^^^ help: use `dyn`: `dyn Reporter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:25:45
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn run<'run>(&self, tests: &Vec<Box<Runnable + Sync + 'run>>) {
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Runnable + Sync + 'run`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:26:32
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let reporters: Vec<Box<Reporter>> = vec![Box::new(ProgressReporter::new()),
[INFO] [stdout]    |                                ^^^^^^^^ help: use `dyn`: `dyn Reporter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reporters.rs:13:24
[INFO] [stdout]    |
[INFO] [stdout] 13 |     reporters: Vec<Box<Reporter>>,
[INFO] [stdout]    |                        ^^^^^^^^ help: use `dyn`: `dyn Reporter`
[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/reporters.rs:17:35
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new(reporters: Vec<Box<Reporter>>) -> CompositeReporter {
[INFO] [stdout]    |                                   ^^^^^^^^ help: use `dyn`: `dyn Reporter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:25:45
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn run<'run>(&self, tests: &Vec<Box<Runnable + Sync + 'run>>) {
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Runnable + Sync + 'run`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:26:32
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let reporters: Vec<Box<Reporter>> = vec![Box::new(ProgressReporter::new()),
[INFO] [stdout]    |                                ^^^^^^^^ help: use `dyn`: `dyn Reporter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/lib.rs:27:62
[INFO] [stdout]    |
[INFO] [stdout] 27 |         .map(|result| Box::new(TestCase::new(result)) as Box<Runnable + Sync>)
[INFO] [stdout]    |                                                              ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Runnable + Sync`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.13s
[INFO] running `Command { std: "docker" "inspect" "a5991eff5161b5b6ad4bcf60130336b2f369d1317b35af62abafc28deb9f2063", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5991eff5161b5b6ad4bcf60130336b2f369d1317b35af62abafc28deb9f2063", kill_on_drop: false }`
[INFO] [stdout] a5991eff5161b5b6ad4bcf60130336b2f369d1317b35af62abafc28deb9f2063