[INFO] crate rcombinators 0.1.0 is already in cache
[INFO] checking rcombinators-0.1.0 against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] extracting crate rcombinators 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate rcombinators 0.1.0 on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rcombinators 0.1.0
[INFO] finished tweaking crates.io crate rcombinators 0.1.0
[INFO] tweaked toml for crates.io crate rcombinators 0.1.0 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] 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] 426d872d3260874ef6a434854dc67bc1419774b3f1bd75a0494f4b50429f2beb
[INFO] running `"docker" "start" "-a" "426d872d3260874ef6a434854dc67bc1419774b3f1bd75a0494f4b50429f2beb"`
[INFO] [stderr]     Checking utf8reader v0.1.0
[INFO] [stderr]     Checking time-test v0.2.2
[INFO] [stderr]     Checking rcombinators v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/primitives.rs:158:44
[INFO] [stderr]     |
[INFO] [stderr] 158 |                 Err(ParseError::ExecFail(e.description().to_string()))
[INFO] [stderr]     |                                            ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/primitives.rs:177:40
[INFO] [stderr]     |
[INFO] [stderr] 177 |         Err(e) => return Err(execerr(e.description())),
[INFO] [stderr]     |                                        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/primitives.rs:184:44
[INFO] [stderr]     |
[INFO] [stderr] 184 |             Err(e) => return Err(execerr(e.description())),
[INFO] [stderr]     |                                            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/combinators.rs:556:17
[INFO] [stderr]     |
[INFO] [stderr] 555 |                 panic!("lazy should not run this function!");
[INFO] [stderr]     |                 --------------------------------------------- any code following this expression is unreachable
[INFO] [stderr] 556 |                 Uint8::new()
[INFO] [stderr]     |                 ^^^^^^^^^^^^ unreachable expression
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/primitives.rs:158:44
[INFO] [stderr]     |
[INFO] [stderr] 158 |                 Err(ParseError::ExecFail(e.description().to_string()))
[INFO] [stderr]     |                                            ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/primitives.rs:177:40
[INFO] [stderr]     |
[INFO] [stderr] 177 |         Err(e) => return Err(execerr(e.description())),
[INFO] [stderr]     |                                        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/primitives.rs:184:44
[INFO] [stderr]     |
[INFO] [stderr] 184 |             Err(e) => return Err(execerr(e.description())),
[INFO] [stderr]     |                                            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.54s
[INFO] running `"docker" "inspect" "426d872d3260874ef6a434854dc67bc1419774b3f1bd75a0494f4b50429f2beb"`
[INFO] running `"docker" "rm" "-f" "426d872d3260874ef6a434854dc67bc1419774b3f1bd75a0494f4b50429f2beb"`
[INFO] [stdout] 426d872d3260874ef6a434854dc67bc1419774b3f1bd75a0494f4b50429f2beb