[INFO] fetching crate combine-language 4.0.0...
[INFO] testing combine-language-4.0.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate combine-language 4.0.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate combine-language 4.0.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate combine-language 4.0.0
[INFO] finished tweaking crates.io crate combine-language 4.0.0
[INFO] tweaked toml for crates.io crate combine-language 4.0.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 437eee66ccf619d1a95ba30cd11dd3afeb085f00734328a44d08ea7e461c20ef
[INFO] running `Command { std: "docker" "start" "-a" "437eee66ccf619d1a95ba30cd11dd3afeb085f00734328a44d08ea7e461c20ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "437eee66ccf619d1a95ba30cd11dd3afeb085f00734328a44d08ea7e461c20ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "437eee66ccf619d1a95ba30cd11dd3afeb085f00734328a44d08ea7e461c20ef", kill_on_drop: false }`
[INFO] [stdout] 437eee66ccf619d1a95ba30cd11dd3afeb085f00734328a44d08ea7e461c20ef
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] be671ae490ce5aac1e59aa8fa4df0247b7fedb498e677a03f3d3750a66f6bc41
[INFO] running `Command { std: "docker" "start" "-a" "be671ae490ce5aac1e59aa8fa4df0247b7fedb498e677a03f3d3750a66f6bc41", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling bytes v1.0.0
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling pulldown-cmark v0.0.8
[INFO] [stderr]    Compiling combine v4.5.1
[INFO] [stderr]    Compiling skeptic v0.9.0
[INFO] [stderr]    Compiling combine-language v4.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.95s
[INFO] running `Command { std: "docker" "inspect" "be671ae490ce5aac1e59aa8fa4df0247b7fedb498e677a03f3d3750a66f6bc41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be671ae490ce5aac1e59aa8fa4df0247b7fedb498e677a03f3d3750a66f6bc41", kill_on_drop: false }`
[INFO] [stdout] be671ae490ce5aac1e59aa8fa4df0247b7fedb498e677a03f3d3750a66f6bc41
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a82a226ade0ab60c60a593fa151df79dd6ce5c5b360e8980db4c8bdd891339d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7a82a226ade0ab60c60a593fa151df79dd6ce5c5b360e8980db4c8bdd891339d", kill_on_drop: false }`
[INFO] [stderr]    Compiling combine-language v4.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.25s
[INFO] running `Command { std: "docker" "inspect" "7a82a226ade0ab60c60a593fa151df79dd6ce5c5b360e8980db4c8bdd891339d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a82a226ade0ab60c60a593fa151df79dd6ce5c5b360e8980db4c8bdd891339d", kill_on_drop: false }`
[INFO] [stdout] 7a82a226ade0ab60c60a593fa151df79dd6ce5c5b360e8980db4c8bdd891339d
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e49c39a10ccbb2ec9f2cbeec65e57a80eba4cc3c0ea452e53a48cc22f62e22c2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e49c39a10ccbb2ec9f2cbeec65e57a80eba4cc3c0ea452e53a48cc22f62e22c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling combine-language v4.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.47s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/combine_language-867ee90dde1fb0ee
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test tests::char_literal ... ok
[INFO] [stdout] test tests::expression_error ... ok
[INFO] [stdout] test tests::identifier ... ok
[INFO] [stdout] test tests::operator ... ok
[INFO] [stdout] test tests::expression ... ok
[INFO] [stdout] test tests::float_literal ... ok
[INFO] [stdout] test tests::range_operator ... ok
[INFO] [stdout] test tests::range_identifier ... ok
[INFO] [stdout] test tests::integer_literal ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/skeptic-95d1cd1cde245899
[INFO] [stdout] test tests::right_assoc_expression ... ok
[INFO] [stdout] test tests::string_literal ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests combine-language
[INFO] [stdout] test readme_0 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - expression_parser (line 902) ... ok
[INFO] [stdout] test src/lib.rs - (line 3) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e49c39a10ccbb2ec9f2cbeec65e57a80eba4cc3c0ea452e53a48cc22f62e22c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e49c39a10ccbb2ec9f2cbeec65e57a80eba4cc3c0ea452e53a48cc22f62e22c2", kill_on_drop: false }`
[INFO] [stdout] e49c39a10ccbb2ec9f2cbeec65e57a80eba4cc3c0ea452e53a48cc22f62e22c2