[INFO] fetching crate rust-playground-top-crates 0.1.0...
[INFO] testing rust-playground-top-crates-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate rust-playground-top-crates 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate rust-playground-top-crates 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust-playground-top-crates 0.1.0
[INFO] finished tweaking crates.io crate rust-playground-top-crates 0.1.0
[INFO] tweaked toml for crates.io crate rust-playground-top-crates 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate rust-playground-top-crates 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded strip-ansi-escapes v0.1.0
[INFO] [stderr]   Downloaded tar v0.4.35
[INFO] [stderr]   Downloaded bytesize v1.0.1
[INFO] [stderr]   Downloaded commoncrypto-sys v0.2.0
[INFO] [stderr]   Downloaded crates-io v0.33.0
[INFO] [stderr]   Downloaded opener v0.4.1
[INFO] [stderr]   Downloaded git2 v0.13.20
[INFO] [stderr]   Downloaded crypto-hash v0.3.4
[INFO] [stderr]   Downloaded cargo-util v0.1.0
[INFO] [stderr]   Downloaded im-rc v15.0.0
[INFO] [stderr]   Downloaded commoncrypto v0.2.0
[INFO] [stderr]   Downloaded git2-curl v0.14.1
[INFO] [stderr]   Downloaded sized-chunks v0.6.5
[INFO] [stderr]   Downloaded libgit2-sys v0.12.21+1.1.0
[INFO] [stderr]   Downloaded rustfix v0.5.1
[INFO] [stderr]   Downloaded cargo v0.54.0
[INFO] [stderr]   Downloaded shell-escape v0.1.5
[INFO] [stderr]   Downloaded serde_ignored v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2733d7dbd9b80f6e1f6c99ded4801f0f5f42ecfee02e80456ba6921ff6a47284
[INFO] running `Command { std: "docker" "start" "-a" "2733d7dbd9b80f6e1f6c99ded4801f0f5f42ecfee02e80456ba6921ff6a47284", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2733d7dbd9b80f6e1f6c99ded4801f0f5f42ecfee02e80456ba6921ff6a47284", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2733d7dbd9b80f6e1f6c99ded4801f0f5f42ecfee02e80456ba6921ff6a47284", kill_on_drop: false }`
[INFO] [stdout] 2733d7dbd9b80f6e1f6c99ded4801f0f5f42ecfee02e80456ba6921ff6a47284
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dbe029e99820e889c48221f3f515392d4ef414e08ff7789d8b29ea72a6fa2013
[INFO] running `Command { std: "docker" "start" "-a" "dbe029e99820e889c48221f3f515392d4ef414e08ff7789d8b29ea72a6fa2013", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling pin-project-lite v0.2.6
[INFO] [stderr]    Compiling openssl v0.10.35
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling anyhow v1.0.41
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling curl v0.4.38
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling futures-sink v0.3.15
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]    Compiling slab v0.4.3
[INFO] [stderr]    Compiling futures-io v0.3.15
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling utf8parse v0.1.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling shell-escape v0.1.5
[INFO] [stderr]    Compiling opener v0.4.1
[INFO] [stderr]    Compiling home v0.5.3
[INFO] [stderr]    Compiling rustc-workspace-hack v1.0.0
[INFO] [stderr]    Compiling bytesize v1.0.1
[INFO] [stderr]    Compiling tinyvec v1.2.0
[INFO] [stderr]    Compiling tokio v1.7.1
[INFO] [stderr]    Compiling unicode-bidi v0.3.5
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling tracing-core v0.1.18
[INFO] [stderr]    Compiling http v0.2.4
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling im-rc v15.0.0
[INFO] [stderr]    Compiling vte v0.3.3
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling strip-ansi-escapes v0.1.0
[INFO] [stderr]    Compiling rand_xoshiro v0.4.0
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling jobserver v0.1.22
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling socket2 v0.4.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling filetime v0.2.14
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling tar v0.4.35
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling http-body v0.4.2
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling globset v0.4.8
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling bitmaps v2.1.0
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling ignore v0.4.18
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling openssl-sys v0.9.65
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.6+1.43.0
[INFO] [stderr]    Compiling libssh2-sys v0.2.21
[INFO] [stderr]    Compiling curl-sys v0.4.44+curl-7.77.0
[INFO] [stderr]    Compiling libgit2-sys v0.12.21+1.1.0
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling flate2 v1.0.20
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]    Compiling cargo v0.54.0
[INFO] [stderr]    Compiling sized-chunks v0.6.5
[INFO] [stderr]    Compiling tokio-util v0.6.7
[INFO] [stderr]    Compiling h2 v0.3.3
[INFO] [stderr]    Compiling crypto-hash v0.3.4
[INFO] [stderr]    Compiling git2 v0.13.20
[INFO] [stderr]    Compiling cargo-util v0.1.0
[INFO] [stderr]    Compiling tokio-native-tls v0.3.0
[INFO] [stderr]    Compiling hyper v0.14.9
[INFO] [stderr]    Compiling git2-curl v0.14.1
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling serde_urlencoded v0.7.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling cargo-platform v0.1.1
[INFO] [stderr]    Compiling serde_ignored v0.1.2
[INFO] [stderr]    Compiling semver v0.10.0
[INFO] [stderr]    Compiling reqwest v0.11.4
[INFO] [stderr]    Compiling crates-io v0.33.0
[INFO] [stderr]    Compiling rustfix v0.5.1
[INFO] [stderr]    Compiling rust-playground-top-crates v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 42s
[INFO] running `Command { std: "docker" "inspect" "dbe029e99820e889c48221f3f515392d4ef414e08ff7789d8b29ea72a6fa2013", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbe029e99820e889c48221f3f515392d4ef414e08ff7789d8b29ea72a6fa2013", kill_on_drop: false }`
[INFO] [stdout] dbe029e99820e889c48221f3f515392d4ef414e08ff7789d8b29ea72a6fa2013
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 35937316cbfca20d7d3efbe3616c654cd66aad1eb7f1da579309133c98b5c186
[INFO] running `Command { std: "docker" "start" "-a" "35937316cbfca20d7d3efbe3616c654cd66aad1eb7f1da579309133c98b5c186", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-playground-top-crates v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.07s
[INFO] running `Command { std: "docker" "inspect" "35937316cbfca20d7d3efbe3616c654cd66aad1eb7f1da579309133c98b5c186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35937316cbfca20d7d3efbe3616c654cd66aad1eb7f1da579309133c98b5c186", kill_on_drop: false }`
[INFO] [stdout] 35937316cbfca20d7d3efbe3616c654cd66aad1eb7f1da579309133c98b5c186
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2a7aa965d68e413762d4de38f0966f7421d2acd8c4f1432e6c0515591819dbac
[INFO] running `Command { std: "docker" "start" "-a" "2a7aa965d68e413762d4de38f0966f7421d2acd8c4f1432e6c0515591819dbac", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_playground_top_crates-aa76c6702f6b7418)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_playground_top_crates-553a8ba115661ee7)
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    Doc-tests rust-playground-top-crates
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - playground_metadata_features (line 152) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - playground_metadata_features (line 152) stdout ----
[INFO] [stdout] error: expected one of `.`, `;`, `?`, `}`, or an operator, found `default`
[INFO] [stdout]  --> src/lib.rs:154:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | [package.metadata.playground]
[INFO] [stdout]   |                              - expected one of `.`, `;`, `?`, `}`, or an operator
[INFO] [stdout] 4 | default-features = true
[INFO] [stdout]   | ^^^^^^^ unexpected token
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - playground_metadata_features (line 152)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "2a7aa965d68e413762d4de38f0966f7421d2acd8c4f1432e6c0515591819dbac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a7aa965d68e413762d4de38f0966f7421d2acd8c4f1432e6c0515591819dbac", kill_on_drop: false }`
[INFO] [stdout] 2a7aa965d68e413762d4de38f0966f7421d2acd8c4f1432e6c0515591819dbac