[INFO] cloning repository https://github.com/djdietrick/rust-link-fs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/djdietrick/rust-link-fs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjdietrick%2Frust-link-fs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjdietrick%2Frust-link-fs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e19eac6125deea426f27596283cfb51e10892950
[INFO] checking djdietrick/rust-link-fs against try#5ec4d3b0c83717313176eefa7d71e9d36dc83355 for 155501-infallible-never-with-reservation
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdjdietrick%2Frust-link-fs" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/djdietrick/rust-link-fs
[INFO] finished tweaking git repo https://github.com/djdietrick/rust-link-fs
[INFO] tweaked toml for git repo https://github.com/djdietrick/rust-link-fs written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/djdietrick/rust-link-fs on toolchain 5ec4d3b0c83717313176eefa7d71e9d36dc83355
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ec4d3b0c83717313176eefa7d71e9d36dc83355" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/djdietrick/rust-link-fs 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" "+5ec4d3b0c83717313176eefa7d71e9d36dc83355" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+5ec4d3b0c83717313176eefa7d71e9d36dc83355" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa73be7deacc6d3619191355ac842b94256cbc3535b2e3dab9578f0d18137599
[INFO] running `Command { std: "docker" "start" "-a" "aa73be7deacc6d3619191355ac842b94256cbc3535b2e3dab9578f0d18137599", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa73be7deacc6d3619191355ac842b94256cbc3535b2e3dab9578f0d18137599", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa73be7deacc6d3619191355ac842b94256cbc3535b2e3dab9578f0d18137599", kill_on_drop: false }`
[INFO] [stdout] aa73be7deacc6d3619191355ac842b94256cbc3535b2e3dab9578f0d18137599
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+5ec4d3b0c83717313176eefa7d71e9d36dc83355" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15f49654e10b463607c60151add046de47cd98c257c33d6e644ba91be4f7e181
[INFO] running `Command { std: "docker" "start" "-a" "15f49654e10b463607c60151add046de47cd98c257c33d6e644ba91be4f7e181", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-link-fs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `File` is never constructed
[INFO] [stdout]  --> src/node.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum Type {
[INFO] [stdout]   |          ---- variant in this enum
[INFO] [stdout] 4 |     File,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `mkdir`, `touch`, and `cd` are never used
[INFO] [stdout]   --> src/node.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Node {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 25 |     fn mkdir(&mut self, n: String) -> Result<(), String> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn touch(&mut self, n: String, url: String) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     fn cd(self, n: String) -> Result<Node, String> {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `File` is never constructed
[INFO] [stdout]  --> src/node.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum Type {
[INFO] [stdout]   |          ---- variant in this enum
[INFO] [stdout] 4 |     File,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `mkdir`, `touch`, and `cd` are never used
[INFO] [stdout]   --> src/node.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Node {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 25 |     fn mkdir(&mut self, n: String) -> Result<(), String> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn touch(&mut self, n: String, url: String) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     fn cd(self, n: String) -> Result<Node, String> {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "15f49654e10b463607c60151add046de47cd98c257c33d6e644ba91be4f7e181", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15f49654e10b463607c60151add046de47cd98c257c33d6e644ba91be4f7e181", kill_on_drop: false }`
[INFO] [stdout] 15f49654e10b463607c60151add046de47cd98c257c33d6e644ba91be4f7e181