[INFO] fetching crate namespace 0.1.0...
[INFO] testing namespace-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate namespace 0.1.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate namespace 0.1.0 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 namespace 0.1.0
[INFO] finished tweaking crates.io crate namespace 0.1.0
[INFO] tweaked toml for crates.io crate namespace 0.1.0 written to /workspace/builds/worker-11/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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stdout] 8eff3d7ed0771d139c61de4fef3a292eef18f777c6825fc7b87e4d02e82891b1
[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" "8eff3d7ed0771d139c61de4fef3a292eef18f777c6825fc7b87e4d02e82891b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8eff3d7ed0771d139c61de4fef3a292eef18f777c6825fc7b87e4d02e82891b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8eff3d7ed0771d139c61de4fef3a292eef18f777c6825fc7b87e4d02e82891b1", kill_on_drop: false }`
[INFO] [stdout] 8eff3d7ed0771d139c61de4fef3a292eef18f777c6825fc7b87e4d02e82891b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stdout] 73063db7340913f62610046e3e3d58bf695e44b31ed383d859392ea4d11d4443
[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" "73063db7340913f62610046e3e3d58bf695e44b31ed383d859392ea4d11d4443", kill_on_drop: false }`
[INFO] [stderr]    Compiling namespace v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `Command { std: "docker" "inspect" "73063db7340913f62610046e3e3d58bf695e44b31ed383d859392ea4d11d4443", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73063db7340913f62610046e3e3d58bf695e44b31ed383d859392ea4d11d4443", kill_on_drop: false }`
[INFO] [stdout] 73063db7340913f62610046e3e3d58bf695e44b31ed383d859392ea4d11d4443
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] e2eeb81a10d4a2a84421325c1804935b03bda7bad03009713357085104ddbb2f
[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" "e2eeb81a10d4a2a84421325c1804935b03bda7bad03009713357085104ddbb2f", kill_on_drop: false }`
[INFO] [stderr]    Compiling namespace v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: `#[test]` attribute is only allowed on non associated functions
[INFO] [stdout]    --> src/lib.rs:270:5
[INFO] [stdout]     |
[INFO] [stdout] 270 | /     fn test_sliding_match() {
[INFO] [stdout] 271 | |         let ns = Namespace::new("a::b::c").unwrap();
[INFO] [stdout] 272 | |
[INFO] [stdout] 273 | |         let other = Namespace::new("c::b::a").unwrap();
[INFO] [stdout] ...   |
[INFO] [stdout] 294 | |         );
[INFO] [stdout] 295 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: can't compare `str` with `&str`
[INFO] [stdout]    --> src/lib.rs:376:5
[INFO] [stdout]     |
[INFO] [stdout] 376 | /     assert_eq!(
[INFO] [stdout] 377 | |         ns[0],
[INFO] [stdout] 378 | |         "a"
[INFO] [stdout] 379 | |     );
[INFO] [stdout]     | |______^ no implementation for `str == &str`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `PartialEq<&str>` is not implemented for `str`
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `namespace`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e2eeb81a10d4a2a84421325c1804935b03bda7bad03009713357085104ddbb2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2eeb81a10d4a2a84421325c1804935b03bda7bad03009713357085104ddbb2f", kill_on_drop: false }`
[INFO] [stdout] e2eeb81a10d4a2a84421325c1804935b03bda7bad03009713357085104ddbb2f