[INFO] crate cov 0.0.5 is already in cache
[INFO] checking cov-0.0.5 against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] extracting crate cov 0.0.5 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate cov 0.0.5 on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate cov 0.0.5
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate cov 0.0.5
[INFO] tweaked toml for crates.io crate cov 0.0.5 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "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] ced5b18cb41245e4c14b431e148183046e2e341b1b6441c1a3528585648bf934
[INFO] running `"docker" "start" "-a" "ced5b18cb41245e4c14b431e148183046e2e341b1b6441c1a3528585648bf934"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking diff v0.1.12
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking cov v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/error.rs:123:23
[INFO] [stderr]     |
[INFO] [stderr] 123 |     cause: Option<Box<StdError + Send + 'static>>,
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn StdError + Send + 'static`
[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/error.rs:142:32
[INFO] [stderr]     |
[INFO] [stderr] 142 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/error.rs:143:41
[INFO] [stderr]     |
[INFO] [stderr] 143 |         self.cause.as_ref().map(|e| -> &StdError { &**e })
[INFO] [stderr]     |                                         ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/error.rs:123:23
[INFO] [stderr]     |
[INFO] [stderr] 123 |     cause: Option<Box<StdError + Send + 'static>>,
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn StdError + Send + 'static`
[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/error.rs:142:32
[INFO] [stderr]     |
[INFO] [stderr] 142 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/error.rs:143:41
[INFO] [stderr]     |
[INFO] [stderr] 143 |         self.cause.as_ref().map(|e| -> &StdError { &**e })
[INFO] [stderr]     |                                         ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.60s
[INFO] running `"docker" "inspect" "ced5b18cb41245e4c14b431e148183046e2e341b1b6441c1a3528585648bf934"`
[INFO] running `"docker" "rm" "-f" "ced5b18cb41245e4c14b431e148183046e2e341b1b6441c1a3528585648bf934"`
[INFO] [stdout] ced5b18cb41245e4c14b431e148183046e2e341b1b6441c1a3528585648bf934
