[INFO] fetching crate walker 1.0.1...
[INFO] testing walker-1.0.1 against 1.44.0 for beta-1.45-1
[INFO] extracting crate walker 1.0.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate walker 1.0.1 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate walker 1.0.1
[INFO] finished tweaking crates.io crate walker 1.0.1
[INFO] tweaked toml for crates.io crate walker 1.0.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 635471b38ffb6f9f8ffb07a5ffb2991dc62a172ecc9947d25c76efc84591b7d7
[INFO] running `"docker" "start" "-a" "635471b38ffb6f9f8ffb07a5ffb2991dc62a172ecc9947d25c76efc84591b7d7"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling walker v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:13:15
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let cur = try!(read_dir(path));
[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/lib.rs:22:21
[INFO] [stderr]    |
[INFO] [stderr] 22 |     self.cur = Some(try!(read_dir(self.root.as_path())));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `"docker" "inspect" "635471b38ffb6f9f8ffb07a5ffb2991dc62a172ecc9947d25c76efc84591b7d7"`
[INFO] running `"docker" "rm" "-f" "635471b38ffb6f9f8ffb07a5ffb2991dc62a172ecc9947d25c76efc84591b7d7"`
[INFO] [stdout] 635471b38ffb6f9f8ffb07a5ffb2991dc62a172ecc9947d25c76efc84591b7d7
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 34ca74502809e1e0180d924b5ae468bed519199b08cb4afd2dad0725283f4104
[INFO] running `"docker" "start" "-a" "34ca74502809e1e0180d924b5ae468bed519199b08cb4afd2dad0725283f4104"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling walker v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:13:15
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let cur = try!(read_dir(path));
[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/lib.rs:22:21
[INFO] [stderr]    |
[INFO] [stderr] 22 |     self.cur = Some(try!(read_dir(self.root.as_path())));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:13:15
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let cur = try!(read_dir(path));
[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/lib.rs:22:21
[INFO] [stderr]    |
[INFO] [stderr] 22 |     self.cur = Some(try!(read_dir(self.root.as_path())));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `"docker" "inspect" "34ca74502809e1e0180d924b5ae468bed519199b08cb4afd2dad0725283f4104"`
[INFO] running `"docker" "rm" "-f" "34ca74502809e1e0180d924b5ae468bed519199b08cb4afd2dad0725283f4104"`
[INFO] [stdout] 34ca74502809e1e0180d924b5ae468bed519199b08cb4afd2dad0725283f4104
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7e28b0358cb4242ce42d632f38faf146ce5a7253844589d608afdb66f9b06f76
[INFO] running `"docker" "start" "-a" "7e28b0358cb4242ce42d632f38faf146ce5a7253844589d608afdb66f9b06f76"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:13:15
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let cur = try!(read_dir(path));
[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/lib.rs:22:21
[INFO] [stderr]    |
[INFO] [stderr] 22 |     self.cur = Some(try!(read_dir(self.root.as_path())));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:13:15
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let cur = try!(read_dir(path));
[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/lib.rs:22:21
[INFO] [stderr]    |
[INFO] [stderr] 22 |     self.cur = Some(try!(read_dir(self.root.as_path())));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/walker-6006f2e299a004b1
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::test_walker ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests walker
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "7e28b0358cb4242ce42d632f38faf146ce5a7253844589d608afdb66f9b06f76"`
[INFO] running `"docker" "rm" "-f" "7e28b0358cb4242ce42d632f38faf146ce5a7253844589d608afdb66f9b06f76"`
[INFO] [stdout] 7e28b0358cb4242ce42d632f38faf146ce5a7253844589d608afdb66f9b06f76