[INFO] fetching crate cov 0.0.5... [INFO] checking cov-0.0.5 against try#ffa4a0215752773248fb0f0a8092f1c3e7907e9e for pr-75585 [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 ffa4a0215752773248fb0f0a8092f1c3e7907e9e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "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-2/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "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-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" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 92dcfd4873da6b7161225182132469e1c962027e7ed14036b7d29511ff1ef6ce [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" "92dcfd4873da6b7161225182132469e1c962027e7ed14036b7d29511ff1ef6ce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "92dcfd4873da6b7161225182132469e1c962027e7ed14036b7d29511ff1ef6ce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "92dcfd4873da6b7161225182132469e1c962027e7ed14036b7d29511ff1ef6ce", kill_on_drop: false }` [INFO] [stdout] 92dcfd4873da6b7161225182132469e1c962027e7ed14036b7d29511ff1ef6ce [INFO] running `Command { std: "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" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 04857bb13f783121cfe0e1c2c6b5f8ae742f817fdf130660dbcd693934b239a2 [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" "04857bb13f783121cfe0e1c2c6b5f8ae742f817fdf130660dbcd693934b239a2", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.39 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling serde_json v1.0.57 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking fixedbitset v0.1.9 [INFO] [stderr] Checking itoa v0.4.6 [INFO] [stderr] Checking quick-error v1.2.3 [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 v0.2.12 [INFO] [stderr] Compiling error-chain v0.12.4 [INFO] [stderr] Checking humantime v1.3.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking petgraph v0.4.13 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking env_logger v0.5.13 [INFO] [stderr] Checking num-traits v0.1.43 [INFO] [stderr] Checking shawshank v0.2.3 [INFO] [stderr] Compiling serde_derive v1.0.115 [INFO] [stderr] Checking serde v1.0.115 [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>, [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: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/error.rs:123:23 [INFO] [stdout] | [INFO] [stdout] 123 | cause: Option>, [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] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 36.82s [INFO] running `Command { std: "docker" "inspect" "04857bb13f783121cfe0e1c2c6b5f8ae742f817fdf130660dbcd693934b239a2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "04857bb13f783121cfe0e1c2c6b5f8ae742f817fdf130660dbcd693934b239a2", kill_on_drop: false }` [INFO] [stdout] 04857bb13f783121cfe0e1c2c6b5f8ae742f817fdf130660dbcd693934b239a2