[INFO] crate pcell 0.7.1 is already in cache
[INFO] checking pcell-0.7.1 against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] extracting crate pcell 0.7.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate pcell 0.7.1 on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate pcell 0.7.1
[INFO] finished tweaking crates.io crate pcell 0.7.1
[INFO] tweaked toml for crates.io crate pcell 0.7.1 written to /workspace/builds/worker-4/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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 18b41a689006ab15f41b36b930d8d5b74d48037b9f3488cd339f302c6c477e2f
[INFO] running `"docker" "start" "-a" "18b41a689006ab15f41b36b930d8d5b74d48037b9f3488cd339f302c6c477e2f"`
[INFO] [stderr]     Checking snap v0.2.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking csv v0.15.0
[INFO] [stderr]     Checking prettytable-rs v0.6.7
[INFO] [stderr]     Checking pcell v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/main.rs:79:74
[INFO] [stderr]    |
[INFO] [stderr] 79 |                 Err(e) => println!("Failed to read database: {} {}", why.description(), e.description()),
[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/main.rs:79:91
[INFO] [stderr]    |
[INFO] [stderr] 79 |                 Err(e) => println!("Failed to read database: {} {}", why.description(), 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/main.rs:95:60
[INFO] [stderr]    |
[INFO] [stderr] 95 |             println!("Failed to serialize database: {}", 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/main.rs:159:67
[INFO] [stderr]     |
[INFO] [stderr] 159 |                 Err(e) => println!("Failed to create file: {}", 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/main.rs:79:74
[INFO] [stderr]    |
[INFO] [stderr] 79 |                 Err(e) => println!("Failed to read database: {} {}", why.description(), e.description()),
[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/main.rs:79:91
[INFO] [stderr]    |
[INFO] [stderr] 79 |                 Err(e) => println!("Failed to read database: {} {}", why.description(), 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/main.rs:95:60
[INFO] [stderr]    |
[INFO] [stderr] 95 |             println!("Failed to serialize database: {}", 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/main.rs:159:67
[INFO] [stderr]     |
[INFO] [stderr] 159 |                 Err(e) => println!("Failed to create file: {}", e.description()),
[INFO] [stderr]     |                                                                   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/main.rs:101:13
[INFO] [stderr]     |
[INFO] [stderr] 101 | /             write!(
[INFO] [stderr] 102 | |                 file,
[INFO] [stderr] 103 | |                 "{}",
[INFO] [stderr] 104 | |                 db_strings.as_str()
[INFO] [stderr] 105 | |             ).is_ok();
[INFO] [stderr]     | |______________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/main.rs:101:13
[INFO] [stderr]     |
[INFO] [stderr] 101 | /             write!(
[INFO] [stderr] 102 | |                 file,
[INFO] [stderr] 103 | |                 "{}",
[INFO] [stderr] 104 | |                 db_strings.as_str()
[INFO] [stderr] 105 | |             ).is_ok();
[INFO] [stderr]     | |______________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.33s
[INFO] running `"docker" "inspect" "18b41a689006ab15f41b36b930d8d5b74d48037b9f3488cd339f302c6c477e2f"`
[INFO] running `"docker" "rm" "-f" "18b41a689006ab15f41b36b930d8d5b74d48037b9f3488cd339f302c6c477e2f"`
[INFO] [stdout] 18b41a689006ab15f41b36b930d8d5b74d48037b9f3488cd339f302c6c477e2f
