[INFO] crate frontmatter 0.3.0 is already in cache
[INFO] testing frontmatter-0.3.0 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] extracting crate frontmatter 0.3.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate frontmatter 0.3.0 on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate frontmatter 0.3.0
[INFO] finished tweaking crates.io crate frontmatter 0.3.0
[INFO] tweaked toml for crates.io crate frontmatter 0.3.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[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" "+28742a1146f10a4f09369baad027a464acb7a766" "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] 656b1f919c2d8a6d4d2624c08b74bc9e27ab15bfe36d4b1abc92430e4f3e63bf
[INFO] running `"docker" "start" "-a" "656b1f919c2d8a6d4d2624c08b74bc9e27ab15bfe36d4b1abc92430e4f3e63bf"`
[INFO] [stderr]    Compiling frontmatter v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:27:33
[INFO] [stderr]    |
[INFO] [stderr] 27 |             let mut documents = try!(YamlLoader::load_from_str(yaml_str));
[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:38:23
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let (matter, _) = try!(parse_and_find_content(text));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `"docker" "inspect" "656b1f919c2d8a6d4d2624c08b74bc9e27ab15bfe36d4b1abc92430e4f3e63bf"`
[INFO] running `"docker" "rm" "-f" "656b1f919c2d8a6d4d2624c08b74bc9e27ab15bfe36d4b1abc92430e4f3e63bf"`
[INFO] [stdout] 656b1f919c2d8a6d4d2624c08b74bc9e27ab15bfe36d4b1abc92430e4f3e63bf
[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" "+28742a1146f10a4f09369baad027a464acb7a766" "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] 79beb09a97e24bddcc8f959eb8d371fef0937684afd8a52d574f91d4befbc0aa
[INFO] running `"docker" "start" "-a" "79beb09a97e24bddcc8f959eb8d371fef0937684afd8a52d574f91d4befbc0aa"`
[INFO] [stderr]    Compiling frontmatter v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:27:33
[INFO] [stderr]    |
[INFO] [stderr] 27 |             let mut documents = try!(YamlLoader::load_from_str(yaml_str));
[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:38:23
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let (matter, _) = try!(parse_and_find_content(text));
[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:27:33
[INFO] [stderr]    |
[INFO] [stderr] 27 |             let mut documents = try!(YamlLoader::load_from_str(yaml_str));
[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:38:23
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let (matter, _) = try!(parse_and_find_content(text));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `"docker" "inspect" "79beb09a97e24bddcc8f959eb8d371fef0937684afd8a52d574f91d4befbc0aa"`
[INFO] running `"docker" "rm" "-f" "79beb09a97e24bddcc8f959eb8d371fef0937684afd8a52d574f91d4befbc0aa"`
[INFO] [stdout] 79beb09a97e24bddcc8f959eb8d371fef0937684afd8a52d574f91d4befbc0aa
[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" "+28742a1146f10a4f09369baad027a464acb7a766" "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] 5d28c151feb2dc60f16e3434fd508754bdb258aafa252ddd70719805baadaf7c
[INFO] running `"docker" "start" "-a" "5d28c151feb2dc60f16e3434fd508754bdb258aafa252ddd70719805baadaf7c"`
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:27:33
[INFO] [stderr]    |
[INFO] [stderr] 27 |             let mut documents = try!(YamlLoader::load_from_str(yaml_str));
[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:38:23
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let (matter, _) = try!(parse_and_find_content(text));
[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:27:33
[INFO] [stderr]    |
[INFO] [stderr] 27 |             let mut documents = try!(YamlLoader::load_from_str(yaml_str));
[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:38:23
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let (matter, _) = try!(parse_and_find_content(text));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/frontmatter-10b53cf1cdb065ad
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test test_tests ... ok
[INFO] [stdout] test test_none_find_content ... ok
[INFO] [stdout] test test_none ... ok
[INFO] [stdout] test test_valid ... ok
[INFO] [stdout] test test_empty ... ok
[INFO] [stdout] test test_empty_find_content ... ok
[INFO] [stdout] test test_valid_find_content ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests frontmatter
[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" "5d28c151feb2dc60f16e3434fd508754bdb258aafa252ddd70719805baadaf7c"`
[INFO] running `"docker" "rm" "-f" "5d28c151feb2dc60f16e3434fd508754bdb258aafa252ddd70719805baadaf7c"`
[INFO] [stdout] 5d28c151feb2dc60f16e3434fd508754bdb258aafa252ddd70719805baadaf7c