[INFO] fetching crate manaconf 0.2.1...
[INFO] testing manaconf-0.2.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate manaconf 0.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate manaconf 0.2.1 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 manaconf 0.2.1
[INFO] finished tweaking crates.io crate manaconf 0.2.1
[INFO] tweaked toml for crates.io crate manaconf 0.2.1 written to /workspace/builds/worker-4/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-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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/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] e6a75897bf2d739263e5c08da969e87ff96f9a38100a75f68386bc663066cf56
[INFO] running `Command { std: "docker" "start" "-a" "e6a75897bf2d739263e5c08da969e87ff96f9a38100a75f68386bc663066cf56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6a75897bf2d739263e5c08da969e87ff96f9a38100a75f68386bc663066cf56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6a75897bf2d739263e5c08da969e87ff96f9a38100a75f68386bc663066cf56", kill_on_drop: false }`
[INFO] [stdout] e6a75897bf2d739263e5c08da969e87ff96f9a38100a75f68386bc663066cf56
[INFO] running `Command { std: "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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5adb21072b86549cef8eb62ce0098630d115816b427e63aad3f53f026576c67d
[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" "5adb21072b86549cef8eb62ce0098630d115816b427e63aad3f53f026576c67d", kill_on_drop: false }`
[INFO] [stderr]    Compiling manaconf v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.71s
[INFO] running `Command { std: "docker" "inspect" "5adb21072b86549cef8eb62ce0098630d115816b427e63aad3f53f026576c67d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5adb21072b86549cef8eb62ce0098630d115816b427e63aad3f53f026576c67d", kill_on_drop: false }`
[INFO] [stdout] 5adb21072b86549cef8eb62ce0098630d115816b427e63aad3f53f026576c67d
[INFO] running `Command { std: "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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9af6df2e78f3c438b2ee2f731f7be52fb9cc8bca2e0f28de4bcf037d5eb5d417
[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" "9af6df2e78f3c438b2ee2f731f7be52fb9cc8bca2e0f28de4bcf037d5eb5d417", kill_on_drop: false }`
[INFO] [stderr]    Compiling manaconf v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "9af6df2e78f3c438b2ee2f731f7be52fb9cc8bca2e0f28de4bcf037d5eb5d417", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9af6df2e78f3c438b2ee2f731f7be52fb9cc8bca2e0f28de4bcf037d5eb5d417", kill_on_drop: false }`
[INFO] [stdout] 9af6df2e78f3c438b2ee2f731f7be52fb9cc8bca2e0f28de4bcf037d5eb5d417
[INFO] running `Command { std: "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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9a8124fb55e47fa075b6b5265b93918b30ea778457a4b5f67ae84ec738c6a68c
[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" "9a8124fb55e47fa075b6b5265b93918b30ea778457a4b5f67ae84ec738c6a68c", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/manaconf-51e197e4759dca9b
[INFO] [stdout] test key::tests::test_creating_key ... ok
[INFO] [stderr]    Doc-tests manaconf
[INFO] [stdout] test key::tests::keybuf_to_key ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - Section::section (line 140) ... FAILED
[INFO] [stdout] test src/key.rs - key::KeyBuf::push (line 186) ... FAILED
[INFO] [stdout] test src/lib.rs - Section (line 124) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Section::section (line 140) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `config` in this scope
[INFO] [stdout]  --> src/lib.rs:141:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | let section = config.section("first");
[INFO] [stdout]   |               ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/key.rs - key::KeyBuf::push (line 186) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `KeyBuf`
[INFO] [stdout]  --> src/key.rs:187:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | let mut buf = KeyBuf::new();
[INFO] [stdout]   |               ^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 2 | use manaconf::KeyBuf;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Key`
[INFO] [stdout]  --> src/key.rs:191:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | buf.push(Key::new("database::host"));
[INFO] [stdout]   |          ^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 2 | use manaconf::Key;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Section (line 124) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `config` in this scope
[INFO] [stdout]  --> src/lib.rs:125:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | let section = config.section("My::Config::Section");
[INFO] [stdout]   |               ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/key.rs - key::KeyBuf::push (line 186)
[INFO] [stdout]     src/lib.rs - Section (line 124)
[INFO] [stdout]     src/lib.rs - Section::section (line 140)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "9a8124fb55e47fa075b6b5265b93918b30ea778457a4b5f67ae84ec738c6a68c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a8124fb55e47fa075b6b5265b93918b30ea778457a4b5f67ae84ec738c6a68c", kill_on_drop: false }`
[INFO] [stdout] 9a8124fb55e47fa075b6b5265b93918b30ea778457a4b5f67ae84ec738c6a68c