[INFO] fetching crate remotefs-ssh 0.9.0...
[INFO] checking remotefs-ssh-0.9.0 against e7769602aca3770e8d8ea55716becb22e839a579 for pr-161253
[INFO] extracting crate remotefs-ssh 0.9.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate remotefs-ssh 0.9.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate remotefs-ssh 0.9.0
[INFO] tweaked toml for crates.io crate remotefs-ssh 0.9.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate remotefs-ssh 0.9.0 on toolchain e7769602aca3770e8d8ea55716becb22e839a579
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e7769602aca3770e8d8ea55716becb22e839a579" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate remotefs-ssh 0.9.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e7769602aca3770e8d8ea55716becb22e839a579" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "0eb8c8bc01acc3b7632ae6a6ae66c3c337827439b470ecfaf600ff7faa997c2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0eb8c8bc01acc3b7632ae6a6ae66c3c337827439b470ecfaf600ff7faa997c2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0eb8c8bc01acc3b7632ae6a6ae66c3c337827439b470ecfaf600ff7faa997c2a" "/opt/rustwide/cargo-home/bin/cargo" "+e7769602aca3770e8d8ea55716becb22e839a579" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0eb8c8bc01acc3b7632ae6a6ae66c3c337827439b470ecfaf600ff7faa997c2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0eb8c8bc01acc3b7632ae6a6ae66c3c337827439b470ecfaf600ff7faa997c2a" "/opt/rustwide/cargo-home/bin/cargo" "+e7769602aca3770e8d8ea55716becb22e839a579" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: static `SSH_AGENT_ENV_LOCK` is never used
[INFO] [stdout]   --> src/mock/ssh.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 83 | static SSH_AGENT_ENV_LOCK: std::sync::Mutex<()> = std::sync::Mutex::new(());
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TestSshAgent` is never constructed
[INFO] [stdout]   --> src/mock/ssh.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub struct TestSshAgent {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `start`, `auth_sock`, and `add_key` are never used
[INFO] [stdout]    --> src/mock/ssh.rs:96:12
[INFO] [stdout]     |
[INFO] [stdout]  95 | impl TestSshAgent {
[INFO] [stdout]     | ----------------- associated items in this implementation
[INFO] [stdout]  96 |     pub fn start() -> Self {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 123 |     pub fn auth_sock(&self) -> &str {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 127 |     pub fn add_key(&self, key: &std::path::Path) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_agent_var` is never used
[INFO] [stdout]    --> src/mock/ssh.rs:157:4
[INFO] [stdout]     |
[INFO] [stdout] 157 | fn parse_agent_var(output: &str, name: &str) -> Option<String> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `start_unresponsive_server` is never used
[INFO] [stdout]    --> src/mock/ssh.rs:177:8
[INFO] [stdout]     |
[INFO] [stdout] 177 | pub fn start_unresponsive_server(hold: Duration) -> (u16, JoinHandle<Duration>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `start_flaky_proxy` is never used
[INFO] [stdout]    --> src/mock/ssh.rs:217:8
[INFO] [stdout]     |
[INFO] [stdout] 217 | pub fn start_flaky_proxy(target_port: u16, failures: usize) -> (u16, JoinHandle<()>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 48s
[INFO] running `Command { std: "docker" "inspect" "0eb8c8bc01acc3b7632ae6a6ae66c3c337827439b470ecfaf600ff7faa997c2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0eb8c8bc01acc3b7632ae6a6ae66c3c337827439b470ecfaf600ff7faa997c2a", kill_on_drop: false }`
[INFO] [stdout] 0eb8c8bc01acc3b7632ae6a6ae66c3c337827439b470ecfaf600ff7faa997c2a