[INFO] crate intspan 0.4.1 is already in cache
[INFO] checking intspan-0.4.1 against master#2da942f32802c8233a09744024dfbc34431adf65 for pr-66963
[INFO] extracting crate intspan 0.4.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate intspan 0.4.1 on toolchain 2da942f32802c8233a09744024dfbc34431adf65
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2da942f32802c8233a09744024dfbc34431adf65" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate intspan 0.4.1
[INFO] removed 3 missing examples
[INFO] finished tweaking crates.io crate intspan 0.4.1
[INFO] tweaked toml for crates.io crate intspan 0.4.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate intspan 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2da942f32802c8233a09744024dfbc34431adf65" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+2da942f32802c8233a09744024dfbc34431adf65" "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] 905bd6dc2475f37d92ad5ffbc84d54b7d1abb2b8a213ef0a7d8f4eeb1db8ab81
[INFO] running `"docker" "start" "-a" "905bd6dc2475f37d92ad5ffbc84d54b7d1abb2b8a213ef0a7d8f4eeb1db8ab81"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.4
[INFO] [stderr]    Compiling escargot v0.4.0
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking normalize-line-endings v0.2.2
[INFO] [stderr]     Checking float-cmp v0.4.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]     Checking predicates v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.99
[INFO] [stderr]     Checking serde v1.0.99
[INFO] [stderr]     Checking serde_yaml v0.8.9
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking intspan v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: value assigned to `out_line` is never read
[INFO] [stderr]    --> src/cmd_ovlpr/covered.rs:160:17
[INFO] [stderr]     |
[INFO] [stderr] 160 |         let mut out_line = String::new();
[INFO] [stderr]     |                 ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Checking assert_cmd v0.11.1
[INFO] [stderr] warning: value assigned to `out_line` is never read
[INFO] [stderr]    --> src/cmd_ovlpr/covered.rs:160:17
[INFO] [stderr]     |
[INFO] [stderr] 160 |         let mut out_line = String::new();
[INFO] [stderr]     |                 ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.66s
[INFO] running `"docker" "inspect" "905bd6dc2475f37d92ad5ffbc84d54b7d1abb2b8a213ef0a7d8f4eeb1db8ab81"`
[INFO] running `"docker" "rm" "-f" "905bd6dc2475f37d92ad5ffbc84d54b7d1abb2b8a213ef0a7d8f4eeb1db8ab81"`
[INFO] [stdout] 905bd6dc2475f37d92ad5ffbc84d54b7d1abb2b8a213ef0a7d8f4eeb1db8ab81