[INFO] cloning repository https://github.com/awriterish/vssh
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/awriterish/vssh" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fawriterish%2Fvssh", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fawriterish%2Fvssh'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a935a584144ff26d845ffb7a7137b070417f3f39
[INFO] checking awriterish/vssh against master#0599f3403366d9c57f0625e6de3af214b5042a90 for pr-87710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fawriterish%2Fvssh" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/awriterish/vssh on toolchain 0599f3403366d9c57f0625e6de3af214b5042a90
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/awriterish/vssh
[INFO] finished tweaking git repo https://github.com/awriterish/vssh
[INFO] tweaked toml for git repo https://github.com/awriterish/vssh written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/awriterish/vssh already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "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] 536ad4af77c05ebc00e56df9aeb38dc4b9270b2fd956adf85cd21733362bf25a
[INFO] running `Command { std: "docker" "start" "-a" "536ad4af77c05ebc00e56df9aeb38dc4b9270b2fd956adf85cd21733362bf25a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "536ad4af77c05ebc00e56df9aeb38dc4b9270b2fd956adf85cd21733362bf25a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "536ad4af77c05ebc00e56df9aeb38dc4b9270b2fd956adf85cd21733362bf25a", kill_on_drop: false }`
[INFO] [stdout] 536ad4af77c05ebc00e56df9aeb38dc4b9270b2fd956adf85cd21733362bf25a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1638a9dcc15f0b1f2fb9634c5347523f15133836282e5f05d8ee07666d92b9e
[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" "f1638a9dcc15f0b1f2fb9634c5347523f15133836282e5f05d8ee07666d92b9e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking vssh v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `CStr`
[INFO] [stdout]  --> src/main.rs:4:25
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ffi::{CString, CStr};
[INFO] [stdout]   |                         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `CStr`
[INFO] [stdout]  --> src/main.rs:4:25
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ffi::{CString, CStr};
[INFO] [stdout]   |                         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/main.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |             output = out.unwrap().to_string();
[INFO] [stdout]    |             ^^^^^^   ------------ any code following this expression is unreachable
[INFO] [stdout]    |             |
[INFO] [stdout]    |             unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] note: this expression has type `Infallible`, which is uninhabited
[INFO] [stdout]   --> src/main.rs:27:22
[INFO] [stdout]    |
[INFO] [stdout] 27 |             output = out.unwrap().to_string();
[INFO] [stdout]    |                      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]   --> src/main.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let length = arguments.len();
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `doCommand` should have a snake case name
[INFO] [stdout]  --> src/main.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn doCommand(arguments:Vec<String>) -> String {
[INFO] [stdout]   |    ^^^^^^^^^ help: convert the identifier to snake case: `do_command`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |             waitpid(child, None);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `printPath` should have a snake case name
[INFO] [stdout]   --> src/main.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn printPath() -> std::io::Result<()> {
[INFO] [stdout]    |    ^^^^^^^^^ help: convert the identifier to snake case: `print_path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `readLine` should have a snake case name
[INFO] [stdout]   --> src/main.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn readLine() -> String {
[INFO] [stdout]    |    ^^^^^^^^ help: convert the identifier to snake case: `read_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     printPath();
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/main.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |             output = out.unwrap().to_string();
[INFO] [stdout]    |             ^^^^^^   ------------ any code following this expression is unreachable
[INFO] [stdout]    |             |
[INFO] [stdout]    |             unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] note: this expression has type `Infallible`, which is uninhabited
[INFO] [stdout]   --> src/main.rs:27:22
[INFO] [stdout]    |
[INFO] [stdout] 27 |             output = out.unwrap().to_string();
[INFO] [stdout]    |                      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]   --> src/main.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let length = arguments.len();
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `doCommand` should have a snake case name
[INFO] [stdout]  --> src/main.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn doCommand(arguments:Vec<String>) -> String {
[INFO] [stdout]   |    ^^^^^^^^^ help: convert the identifier to snake case: `do_command`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |             waitpid(child, None);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `printPath` should have a snake case name
[INFO] [stdout]   --> src/main.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn printPath() -> std::io::Result<()> {
[INFO] [stdout]    |    ^^^^^^^^^ help: convert the identifier to snake case: `print_path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `readLine` should have a snake case name
[INFO] [stdout]   --> src/main.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn readLine() -> String {
[INFO] [stdout]    |    ^^^^^^^^ help: convert the identifier to snake case: `read_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     printPath();
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.92s
[INFO] running `Command { std: "docker" "inspect" "f1638a9dcc15f0b1f2fb9634c5347523f15133836282e5f05d8ee07666d92b9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1638a9dcc15f0b1f2fb9634c5347523f15133836282e5f05d8ee07666d92b9e", kill_on_drop: false }`
[INFO] [stdout] f1638a9dcc15f0b1f2fb9634c5347523f15133836282e5f05d8ee07666d92b9e