[INFO] fetching crate rsudo-rs_support 0.1.0...
[INFO] checking rsudo-rs_support-0.1.0 against master#6526e5c772f2da07db745c94ca6bb0a591a39ba4 for pr-80920
[INFO] extracting crate rsudo-rs_support 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate rsudo-rs_support 0.1.0 on toolchain 6526e5c772f2da07db745c94ca6bb0a591a39ba4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rsudo-rs_support 0.1.0
[INFO] finished tweaking crates.io crate rsudo-rs_support 0.1.0
[INFO] tweaked toml for crates.io crate rsudo-rs_support 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a2e8069a127f7739668a8174a246b1d4f578115244d9264a2b7b53e61a4d6b7
[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" "2a2e8069a127f7739668a8174a246b1d4f578115244d9264a2b7b53e61a4d6b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a2e8069a127f7739668a8174a246b1d4f578115244d9264a2b7b53e61a4d6b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a2e8069a127f7739668a8174a246b1d4f578115244d9264a2b7b53e61a4d6b7", kill_on_drop: false }`
[INFO] [stdout] 2a2e8069a127f7739668a8174a246b1d4f578115244d9264a2b7b53e61a4d6b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f28160473a4f92ce0b9e93372eb1b61d20f565cb996c917878f7730d6ba0c7c
[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" "7f28160473a4f92ce0b9e93372eb1b61d20f565cb996c917878f7730d6ba0c7c", kill_on_drop: false }`
[INFO] [stderr]     Checking rsudo-rs_support v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `RsudoSocket`
[INFO] [stdout]  --> src/socket.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct RsudoSocket {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/socket.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(path: &str) -> RsudoSocket {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read`
[INFO] [stdout]   --> src/socket.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn read(&mut self) -> (i32, String) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write`
[INFO] [stdout]   --> src/socket.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn write(&mut self, op: i32, payload: &str) -> Result<(), Error> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `RsudoSocket`
[INFO] [stdout]  --> src/socket.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct RsudoSocket {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/socket.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(path: &str) -> RsudoSocket {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read`
[INFO] [stdout]   --> src/socket.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn read(&mut self) -> (i32, String) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write`
[INFO] [stdout]   --> src/socket.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn write(&mut self, op: i32, payload: &str) -> Result<(), Error> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "7f28160473a4f92ce0b9e93372eb1b61d20f565cb996c917878f7730d6ba0c7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f28160473a4f92ce0b9e93372eb1b61d20f565cb996c917878f7730d6ba0c7c", kill_on_drop: false }`
[INFO] [stdout] 7f28160473a4f92ce0b9e93372eb1b61d20f565cb996c917878f7730d6ba0c7c