[INFO] fetching crate cov 0.0.5...
[INFO] checking cov-0.0.5 against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] extracting crate cov 0.0.5 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate cov 0.0.5 on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f8690a7bd34ee479d586130ff5f9ce4a463fdee8755511c9d59e87a9e4a3c546
[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" "f8690a7bd34ee479d586130ff5f9ce4a463fdee8755511c9d59e87a9e4a3c546", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8690a7bd34ee479d586130ff5f9ce4a463fdee8755511c9d59e87a9e4a3c546", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8690a7bd34ee479d586130ff5f9ce4a463fdee8755511c9d59e87a9e4a3c546", kill_on_drop: false }`
[INFO] [stdout] f8690a7bd34ee479d586130ff5f9ce4a463fdee8755511c9d59e87a9e4a3c546
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2490c431903c055a870cf950c6efa9364f726a3542e29b716e3fe64c261ad937
[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" "2490c431903c055a870cf950c6efa9364f726a3542e29b716e3fe64c261ad937", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking diff v0.1.12
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking shawshank v0.2.3
[INFO] [stderr]     Checking cov v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/error.rs:123:23
[INFO] [stdout]     |
[INFO] [stdout] 123 |     cause: Option<Box<StdError + Send + 'static>>,
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn StdError + Send + 'static`
[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/error.rs:142:32
[INFO] [stdout]     |
[INFO] [stdout] 142 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stdout]     |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/error.rs:143:41
[INFO] [stdout]     |
[INFO] [stdout] 143 |         self.cause.as_ref().map(|e| -> &StdError { &**e })
[INFO] [stdout]     |                                         ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/error.rs:123:23
[INFO] [stdout]     |
[INFO] [stdout] 123 |     cause: Option<Box<StdError + Send + 'static>>,
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn StdError + Send + 'static`
[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/error.rs:142:32
[INFO] [stdout]     |
[INFO] [stdout] 142 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stdout]     |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/error.rs:143:41
[INFO] [stdout]     |
[INFO] [stdout] 143 |         self.cause.as_ref().map(|e| -> &StdError { &**e })
[INFO] [stdout]     |                                         ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.90s
[INFO] running `Command { std: "docker" "inspect" "2490c431903c055a870cf950c6efa9364f726a3542e29b716e3fe64c261ad937", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2490c431903c055a870cf950c6efa9364f726a3542e29b716e3fe64c261ad937", kill_on_drop: false }`
[INFO] [stdout] 2490c431903c055a870cf950c6efa9364f726a3542e29b716e3fe64c261ad937