[INFO] crate antikoerper 0.2.0 is already in cache
[INFO] checking antikoerper-0.2.0 against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] extracting crate antikoerper 0.2.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate antikoerper 0.2.0 on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate antikoerper 0.2.0
[INFO] finished tweaking crates.io crate antikoerper 0.2.0
[INFO] tweaked toml for crates.io crate antikoerper 0.2.0 written to /workspace/builds/worker-1/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stdout] 5742a8a6e27de6cdc0fed17b2a9fb72d2f32a9568870e2d11ba1fe87d7b929ea
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "5742a8a6e27de6cdc0fed17b2a9fb72d2f32a9568870e2d11ba1fe87d7b929ea"`
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking toml v0.1.30
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking antikoerper v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/conf.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |         try!(r.read_to_string(&mut buffer));
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/item.rs:183:20
[INFO] [stderr]     |
[INFO] [stderr] 183 |         let kind = try!(sources.into_iter().filter(|x| x.is_ok()).next().unwrap());
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/conf.rs:35:23
[INFO] [stderr]    |
[INFO] [stderr] 35 |     cause: Option<Box<::std::error::Error>>,
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/conf.rs:69:21
[INFO] [stderr]    |
[INFO] [stderr] 69 | pub fn load(r: &mut Read, o: PathBuf) -> Result<Config, ConfigError> {
[INFO] [stderr]    |                     ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/conf.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |         try!(r.read_to_string(&mut buffer));
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/item.rs:183:20
[INFO] [stderr]     |
[INFO] [stderr] 183 |         let kind = try!(sources.into_iter().filter(|x| x.is_ok()).next().unwrap());
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/conf.rs:35:23
[INFO] [stderr]    |
[INFO] [stderr] 35 |     cause: Option<Box<::std::error::Error>>,
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/conf.rs:69:21
[INFO] [stderr]    |
[INFO] [stderr] 69 | pub fn load(r: &mut Read, o: PathBuf) -> Result<Config, ConfigError> {
[INFO] [stderr]    |                     ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/item.rs:224:9
[INFO] [stderr]     |
[INFO] [stderr] 220 |             return ::std::cmp::Ordering::Greater
[INFO] [stderr]     |             ------------------------------------ any code following this expression is unreachable
[INFO] [stderr] ...
[INFO] [stderr] 224 |         ::std::cmp::Ordering::Equal
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/item.rs:224:9
[INFO] [stderr]     |
[INFO] [stderr] 220 |             return ::std::cmp::Ordering::Greater
[INFO] [stderr]     |             ------------------------------------ any code following this expression is unreachable
[INFO] [stderr] ...
[INFO] [stderr] 224 |         ::std::cmp::Ordering::Equal
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.22s
[INFO] running `"docker" "inspect" "5742a8a6e27de6cdc0fed17b2a9fb72d2f32a9568870e2d11ba1fe87d7b929ea"`
[INFO] running `"docker" "rm" "-f" "5742a8a6e27de6cdc0fed17b2a9fb72d2f32a9568870e2d11ba1fe87d7b929ea"`
[INFO] [stdout] 5742a8a6e27de6cdc0fed17b2a9fb72d2f32a9568870e2d11ba1fe87d7b929ea
