[INFO] crate refstruct 0.1.1 is already in cache
[INFO] testing refstruct-0.1.1 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate refstruct 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate refstruct 0.1.1 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate refstruct 0.1.1
[INFO] finished tweaking crates.io crate refstruct 0.1.1
[INFO] tweaked toml for crates.io crate refstruct 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "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=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" "+beta-2020-06-03" "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] 564093cd1c5ff2d72f8edbaaa9ec53172b8218b9da99a0a6d716249d7a33b7ff
[INFO] running `"docker" "start" "-a" "564093cd1c5ff2d72f8edbaaa9ec53172b8218b9da99a0a6d716249d7a33b7ff"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling toml v0.1.30
[INFO] [stderr]    Compiling refstruct v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:31:21
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let files = try!(fs::read_dir(in_dir));
[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:33:25
[INFO] [stderr]    |
[INFO] [stderr] 33 |             let entry = try!(entry);
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:34:22
[INFO] [stderr]    |
[INFO] [stderr] 34 |             let ft = try!(entry.file_type());
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:38:17
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 try!(Scanner::process_dir(&entry.path(), &odir, true));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:43:17
[INFO] [stderr]    |
[INFO] [stderr] 43 |                 try!(Scanner::process_file(&entry.path(), &odir));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:52:20
[INFO] [stderr]    |
[INFO] [stderr] 52 |         let file = try!(fs::File::open(in_file));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:59:21
[INFO] [stderr]    |
[INFO] [stderr] 59 |             let l = try!(line);
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:73:22
[INFO] [stderr]    |
[INFO] [stderr] 73 |             let sw = try!(StructWriter::from_toml(&s).map_err(|e|
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:78:13
[INFO] [stderr]    |
[INFO] [stderr] 78 |             try!(fs::create_dir_all(&out_dir));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:82:28
[INFO] [stderr]    |
[INFO] [stderr] 82 |             let mut outf = try!(fs::File::create(&ofile));
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:83:13
[INFO] [stderr]    |
[INFO] [stderr] 83 |             try!(write!(outf, "{}", contents));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:104:17
[INFO] [stderr]     |
[INFO] [stderr] 104 |         let v = try!(toml_parser.parse().ok_or_else(|| format!("is not valid TOML: {:?}", toml_parser.errors)));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:106:20
[INFO] [stderr]     |
[INFO] [stderr] 106 |         let name = try!(v.get("name").and_then(|v| v.as_str()).ok_or(" - missing or invalid 'name' key"));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:110:13
[INFO] [stderr]     |
[INFO] [stderr] 110 |             try!(ns.as_str().ok_or(" - namespace is not a string"))
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:118:13
[INFO] [stderr]     |
[INFO] [stderr] 118 |             try!(ns.as_str().ok_or(" - module is not a string"))
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:122:13
[INFO] [stderr]     |
[INFO] [stderr] 122 |             try!(ns.as_str().ok_or(" - lifetime is not a string"))
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:129:23
[INFO] [stderr]     |
[INFO] [stderr] 129 |         let vfields = try!(v.get("fields").and_then(|v| v.as_slice()).ok_or(" - missing or invalid 'fields' key"));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:131:21
[INFO] [stderr]     |
[INFO] [stderr] 131 |             let f = try!(f.as_slice().ok_or(" - all fields are not arrays"));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:132:21
[INFO] [stderr]     |
[INFO] [stderr] 132 |             let k = try!(f.get(0).and_then(|k| k.as_str()).ok_or(" - field subarray must be two strings"));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:133:21
[INFO] [stderr]     |
[INFO] [stderr] 133 |             let v = try!(f.get(1).and_then(|k| k.as_str()).ok_or(" - field subarray must be two strings"));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 20 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.50s
[INFO] running `"docker" "inspect" "564093cd1c5ff2d72f8edbaaa9ec53172b8218b9da99a0a6d716249d7a33b7ff"`
[INFO] running `"docker" "rm" "-f" "564093cd1c5ff2d72f8edbaaa9ec53172b8218b9da99a0a6d716249d7a33b7ff"`
[INFO] [stdout] 564093cd1c5ff2d72f8edbaaa9ec53172b8218b9da99a0a6d716249d7a33b7ff
[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=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" "+beta-2020-06-03" "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] 138658557c6cfd5e3a33692f27a9e8fd5f7ca869c68189d8a09e089ae0e5981a
[INFO] running `"docker" "start" "-a" "138658557c6cfd5e3a33692f27a9e8fd5f7ca869c68189d8a09e089ae0e5981a"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling refstruct v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:31:21
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let files = try!(fs::read_dir(in_dir));
[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:33:25
[INFO] [stderr]    |
[INFO] [stderr] 33 |             let entry = try!(entry);
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:34:22
[INFO] [stderr]    |
[INFO] [stderr] 34 |             let ft = try!(entry.file_type());
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:38:17
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 try!(Scanner::process_dir(&entry.path(), &odir, true));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:43:17
[INFO] [stderr]    |
[INFO] [stderr] 43 |                 try!(Scanner::process_file(&entry.path(), &odir));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:52:20
[INFO] [stderr]    |
[INFO] [stderr] 52 |         let file = try!(fs::File::open(in_file));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:59:21
[INFO] [stderr]    |
[INFO] [stderr] 59 |             let l = try!(line);
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:73:22
[INFO] [stderr]    |
[INFO] [stderr] 73 |             let sw = try!(StructWriter::from_toml(&s).map_err(|e|
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:78:13
[INFO] [stderr]    |
[INFO] [stderr] 78 |             try!(fs::create_dir_all(&out_dir));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:82:28
[INFO] [stderr]    |
[INFO] [stderr] 82 |             let mut outf = try!(fs::File::create(&ofile));
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:83:13
[INFO] [stderr]    |
[INFO] [stderr] 83 |             try!(write!(outf, "{}", contents));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:104:17
[INFO] [stderr]     |
[INFO] [stderr] 104 |         let v = try!(toml_parser.parse().ok_or_else(|| format!("is not valid TOML: {:?}", toml_parser.errors)));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:106:20
[INFO] [stderr]     |
[INFO] [stderr] 106 |         let name = try!(v.get("name").and_then(|v| v.as_str()).ok_or(" - missing or invalid 'name' key"));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:110:13
[INFO] [stderr]     |
[INFO] [stderr] 110 |             try!(ns.as_str().ok_or(" - namespace is not a string"))
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:118:13
[INFO] [stderr]     |
[INFO] [stderr] 118 |             try!(ns.as_str().ok_or(" - module is not a string"))
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:122:13
[INFO] [stderr]     |
[INFO] [stderr] 122 |             try!(ns.as_str().ok_or(" - lifetime is not a string"))
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:129:23
[INFO] [stderr]     |
[INFO] [stderr] 129 |         let vfields = try!(v.get("fields").and_then(|v| v.as_slice()).ok_or(" - missing or invalid 'fields' key"));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:131:21
[INFO] [stderr]     |
[INFO] [stderr] 131 |             let f = try!(f.as_slice().ok_or(" - all fields are not arrays"));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:132:21
[INFO] [stderr]     |
[INFO] [stderr] 132 |             let k = try!(f.get(0).and_then(|k| k.as_str()).ok_or(" - field subarray must be two strings"));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:133:21
[INFO] [stderr]     |
[INFO] [stderr] 133 |             let v = try!(f.get(1).and_then(|k| k.as_str()).ok_or(" - field subarray must be two strings"));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 20 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:31:21
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let files = try!(fs::read_dir(in_dir));
[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:33:25
[INFO] [stderr]    |
[INFO] [stderr] 33 |             let entry = try!(entry);
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:34:22
[INFO] [stderr]    |
[INFO] [stderr] 34 |             let ft = try!(entry.file_type());
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:38:17
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 try!(Scanner::process_dir(&entry.path(), &odir, true));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:43:17
[INFO] [stderr]    |
[INFO] [stderr] 43 |                 try!(Scanner::process_file(&entry.path(), &odir));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:52:20
[INFO] [stderr]    |
[INFO] [stderr] 52 |         let file = try!(fs::File::open(in_file));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:59:21
[INFO] [stderr]    |
[INFO] [stderr] 59 |             let l = try!(line);
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:73:22
[INFO] [stderr]    |
[INFO] [stderr] 73 |             let sw = try!(StructWriter::from_toml(&s).map_err(|e|
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:78:13
[INFO] [stderr]    |
[INFO] [stderr] 78 |             try!(fs::create_dir_all(&out_dir));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:82:28
[INFO] [stderr]    |
[INFO] [stderr] 82 |             let mut outf = try!(fs::File::create(&ofile));
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:83:13
[INFO] [stderr]    |
[INFO] [stderr] 83 |             try!(write!(outf, "{}", contents));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:104:17
[INFO] [stderr]     |
[INFO] [stderr] 104 |         let v = try!(toml_parser.parse().ok_or_else(|| format!("is not valid TOML: {:?}", toml_parser.errors)));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:106:20
[INFO] [stderr]     |
[INFO] [stderr] 106 |         let name = try!(v.get("name").and_then(|v| v.as_str()).ok_or(" - missing or invalid 'name' key"));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:110:13
[INFO] [stderr]     |
[INFO] [stderr] 110 |             try!(ns.as_str().ok_or(" - namespace is not a string"))
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:118:13
[INFO] [stderr]     |
[INFO] [stderr] 118 |             try!(ns.as_str().ok_or(" - module is not a string"))
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:122:13
[INFO] [stderr]     |
[INFO] [stderr] 122 |             try!(ns.as_str().ok_or(" - lifetime is not a string"))
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:129:23
[INFO] [stderr]     |
[INFO] [stderr] 129 |         let vfields = try!(v.get("fields").and_then(|v| v.as_slice()).ok_or(" - missing or invalid 'fields' key"));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:131:21
[INFO] [stderr]     |
[INFO] [stderr] 131 |             let f = try!(f.as_slice().ok_or(" - all fields are not arrays"));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:132:21
[INFO] [stderr]     |
[INFO] [stderr] 132 |             let k = try!(f.get(0).and_then(|k| k.as_str()).ok_or(" - field subarray must be two strings"));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:133:21
[INFO] [stderr]     |
[INFO] [stderr] 133 |             let v = try!(f.get(1).and_then(|k| k.as_str()).ok_or(" - field subarray must be two strings"));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 20 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `"docker" "inspect" "138658557c6cfd5e3a33692f27a9e8fd5f7ca869c68189d8a09e089ae0e5981a"`
[INFO] running `"docker" "rm" "-f" "138658557c6cfd5e3a33692f27a9e8fd5f7ca869c68189d8a09e089ae0e5981a"`
[INFO] [stdout] 138658557c6cfd5e3a33692f27a9e8fd5f7ca869c68189d8a09e089ae0e5981a
[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=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" "+beta-2020-06-03" "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] 3e5fbd6be1e1993d60b3c7ea22bd124b9cb300a0de92a8015460e0f02827e2f5
[INFO] running `"docker" "start" "-a" "3e5fbd6be1e1993d60b3c7ea22bd124b9cb300a0de92a8015460e0f02827e2f5"`
[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:31:21
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let files = try!(fs::read_dir(in_dir));
[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:33:25
[INFO] [stderr]    |
[INFO] [stderr] 33 |             let entry = try!(entry);
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:34:22
[INFO] [stderr]    |
[INFO] [stderr] 34 |             let ft = try!(entry.file_type());
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:38:17
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 try!(Scanner::process_dir(&entry.path(), &odir, true));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:43:17
[INFO] [stderr]    |
[INFO] [stderr] 43 |                 try!(Scanner::process_file(&entry.path(), &odir));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:52:20
[INFO] [stderr]    |
[INFO] [stderr] 52 |         let file = try!(fs::File::open(in_file));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:59:21
[INFO] [stderr]    |
[INFO] [stderr] 59 |             let l = try!(line);
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:73:22
[INFO] [stderr]    |
[INFO] [stderr] 73 |             let sw = try!(StructWriter::from_toml(&s).map_err(|e|
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:78:13
[INFO] [stderr]    |
[INFO] [stderr] 78 |             try!(fs::create_dir_all(&out_dir));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:82:28
[INFO] [stderr]    |
[INFO] [stderr] 82 |             let mut outf = try!(fs::File::create(&ofile));
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:83:13
[INFO] [stderr]    |
[INFO] [stderr] 83 |             try!(write!(outf, "{}", contents));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:104:17
[INFO] [stderr]     |
[INFO] [stderr] 104 |         let v = try!(toml_parser.parse().ok_or_else(|| format!("is not valid TOML: {:?}", toml_parser.errors)));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:106:20
[INFO] [stderr]     |
[INFO] [stderr] 106 |         let name = try!(v.get("name").and_then(|v| v.as_str()).ok_or(" - missing or invalid 'name' key"));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:110:13
[INFO] [stderr]     |
[INFO] [stderr] 110 |             try!(ns.as_str().ok_or(" - namespace is not a string"))
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:118:13
[INFO] [stderr]     |
[INFO] [stderr] 118 |             try!(ns.as_str().ok_or(" - module is not a string"))
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:122:13
[INFO] [stderr]     |
[INFO] [stderr] 122 |             try!(ns.as_str().ok_or(" - lifetime is not a string"))
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:129:23
[INFO] [stderr]     |
[INFO] [stderr] 129 |         let vfields = try!(v.get("fields").and_then(|v| v.as_slice()).ok_or(" - missing or invalid 'fields' key"));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:131:21
[INFO] [stderr]     |
[INFO] [stderr] 131 |             let f = try!(f.as_slice().ok_or(" - all fields are not arrays"));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:132:21
[INFO] [stderr]     |
[INFO] [stderr] 132 |             let k = try!(f.get(0).and_then(|k| k.as_str()).ok_or(" - field subarray must be two strings"));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:133:21
[INFO] [stderr]     |
[INFO] [stderr] 133 |             let v = try!(f.get(1).and_then(|k| k.as_str()).ok_or(" - field subarray must be two strings"));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 20 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:31:21
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let files = try!(fs::read_dir(in_dir));
[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:33:25
[INFO] [stderr]    |
[INFO] [stderr] 33 |             let entry = try!(entry);
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:34:22
[INFO] [stderr]    |
[INFO] [stderr] 34 |             let ft = try!(entry.file_type());
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:38:17
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 try!(Scanner::process_dir(&entry.path(), &odir, true));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:43:17
[INFO] [stderr]    |
[INFO] [stderr] 43 |                 try!(Scanner::process_file(&entry.path(), &odir));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:52:20
[INFO] [stderr]    |
[INFO] [stderr] 52 |         let file = try!(fs::File::open(in_file));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:59:21
[INFO] [stderr]    |
[INFO] [stderr] 59 |             let l = try!(line);
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:73:22
[INFO] [stderr]    |
[INFO] [stderr] 73 |             let sw = try!(StructWriter::from_toml(&s).map_err(|e|
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:78:13
[INFO] [stderr]    |
[INFO] [stderr] 78 |             try!(fs::create_dir_all(&out_dir));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:82:28
[INFO] [stderr]    |
[INFO] [stderr] 82 |             let mut outf = try!(fs::File::create(&ofile));
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:83:13
[INFO] [stderr]    |
[INFO] [stderr] 83 |             try!(write!(outf, "{}", contents));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:104:17
[INFO] [stderr]     |
[INFO] [stderr] 104 |         let v = try!(toml_parser.parse().ok_or_else(|| format!("is not valid TOML: {:?}", toml_parser.errors)));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:106:20
[INFO] [stderr]     |
[INFO] [stderr] 106 |         let name = try!(v.get("name").and_then(|v| v.as_str()).ok_or(" - missing or invalid 'name' key"));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:110:13
[INFO] [stderr]     |
[INFO] [stderr] 110 |             try!(ns.as_str().ok_or(" - namespace is not a string"))
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:118:13
[INFO] [stderr]     |
[INFO] [stderr] 118 |             try!(ns.as_str().ok_or(" - module is not a string"))
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:122:13
[INFO] [stderr]     |
[INFO] [stderr] 122 |             try!(ns.as_str().ok_or(" - lifetime is not a string"))
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:129:23
[INFO] [stderr]     |
[INFO] [stderr] 129 |         let vfields = try!(v.get("fields").and_then(|v| v.as_slice()).ok_or(" - missing or invalid 'fields' key"));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:131:21
[INFO] [stderr]     |
[INFO] [stderr] 131 |             let f = try!(f.as_slice().ok_or(" - all fields are not arrays"));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:132:21
[INFO] [stderr]     |
[INFO] [stderr] 132 |             let k = try!(f.get(0).and_then(|k| k.as_str()).ok_or(" - field subarray must be two strings"));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:133:21
[INFO] [stderr]     |
[INFO] [stderr] 133 |             let v = try!(f.get(1).and_then(|k| k.as_str()).ok_or(" - field subarray must be two strings"));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 20 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/refstruct-01ce0556aded491e
[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] [stderr]    Doc-tests refstruct
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - refstruct (line 5) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "3e5fbd6be1e1993d60b3c7ea22bd124b9cb300a0de92a8015460e0f02827e2f5"`
[INFO] running `"docker" "rm" "-f" "3e5fbd6be1e1993d60b3c7ea22bd124b9cb300a0de92a8015460e0f02827e2f5"`
[INFO] [stdout] 3e5fbd6be1e1993d60b3c7ea22bd124b9cb300a0de92a8015460e0f02827e2f5