[INFO] fetching crate stringio 0.3.0...
[INFO] checking stringio-0.3.0 against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] extracting crate stringio 0.3.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate stringio 0.3.0 on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stringio 0.3.0
[INFO] finished tweaking crates.io crate stringio 0.3.0
[INFO] tweaked toml for crates.io crate stringio 0.3.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc5c63c09c7daf6869928d7c0cd6f2b1ed243b0a41e33efa37aa22da2f5df81d
[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" "bc5c63c09c7daf6869928d7c0cd6f2b1ed243b0a41e33efa37aa22da2f5df81d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc5c63c09c7daf6869928d7c0cd6f2b1ed243b0a41e33efa37aa22da2f5df81d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc5c63c09c7daf6869928d7c0cd6f2b1ed243b0a41e33efa37aa22da2f5df81d", kill_on_drop: false }`
[INFO] [stdout] bc5c63c09c7daf6869928d7c0cd6f2b1ed243b0a41e33efa37aa22da2f5df81d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34a20df7d1354a46410968fbfa7c66a088fa39e513a5c276030303d3f030b220
[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" "34a20df7d1354a46410968fbfa7c66a088fa39e513a5c276030303d3f030b220", kill_on_drop: false }`
[INFO] [stderr]     Checking stringio v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: missing documentation for the crate
[INFO] [stdout]    --> src/lib.rs:1:1
[INFO] [stdout]     |
[INFO] [stdout] 1   | / #![warn(bare_trait_objects)]
[INFO] [stdout] 2   | | #![deny(missing_debug_implementations)]
[INFO] [stdout] 3   | | #![warn(missing_docs)]
[INFO] [stdout] 4   | |
[INFO] [stdout] ...   |
[INFO] [stdout] 121 | |     }
[INFO] [stdout] 122 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:3:9
[INFO] [stdout]     |
[INFO] [stdout] 3   | #![warn(missing_docs)]
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a module
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub mod read;
[INFO] [stdout]   | ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a module
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub mod write;
[INFO] [stdout]   | ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/write.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![warn(missing_docs)]
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a trait
[INFO] [stdout]   --> src/write.rs:80:1
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub trait IntoStrWrite: io::Write {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]   --> src/write.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 81 | /     fn into_str_write(self) -> StrWriter<Self>
[INFO] [stdout] 82 | |     where
[INFO] [stdout] 83 | |         Self: Sized,
[INFO] [stdout] 84 | |     {
[INFO] [stdout] 85 | |         StrWriter::wrap(self)
[INFO] [stdout] 86 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]   --> src/write.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn str_writer_by_ref(&mut self) -> StrWriter<&mut Self> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]    --> src/write.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn wrap(writer: W) -> Self {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "34a20df7d1354a46410968fbfa7c66a088fa39e513a5c276030303d3f030b220", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34a20df7d1354a46410968fbfa7c66a088fa39e513a5c276030303d3f030b220", kill_on_drop: false }`
[INFO] [stdout] 34a20df7d1354a46410968fbfa7c66a088fa39e513a5c276030303d3f030b220