[INFO] cloning repository https://github.com/osmanmesutozcan/schwifty
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/osmanmesutozcan/schwifty" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fosmanmesutozcan%2Fschwifty", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fosmanmesutozcan%2Fschwifty'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 12bb9a832e51a990381227d47078a0a5ff223093
[INFO] checking osmanmesutozcan/schwifty against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fosmanmesutozcan%2Fschwifty" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/osmanmesutozcan/schwifty on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/osmanmesutozcan/schwifty
[INFO] finished tweaking git repo https://github.com/osmanmesutozcan/schwifty
[INFO] tweaked toml for git repo https://github.com/osmanmesutozcan/schwifty written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/osmanmesutozcan/schwifty already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "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] 5b3e89c7f4270b27cf0a9700436136eacee3b08944971348656597664d00e58e
[INFO] running `Command { std: "docker" "start" "-a" "5b3e89c7f4270b27cf0a9700436136eacee3b08944971348656597664d00e58e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b3e89c7f4270b27cf0a9700436136eacee3b08944971348656597664d00e58e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b3e89c7f4270b27cf0a9700436136eacee3b08944971348656597664d00e58e", kill_on_drop: false }`
[INFO] [stdout] 5b3e89c7f4270b27cf0a9700436136eacee3b08944971348656597664d00e58e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f9a5c2fb942b91234476bb6a96f284981e9d54ef25c6a92753b1e1cd97f02aa
[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" "8f9a5c2fb942b91234476bb6a96f284981e9d54ef25c6a92753b1e1cd97f02aa", kill_on_drop: false }`
[INFO] [stderr]     Checking schwifty v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `TokenError`
[INFO] [stdout]  --> src/lexer.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     TokenError,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `builtins`
[INFO] [stdout]   --> src/eval.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     builtins: HashMap<String, Token>
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cdr`
[INFO] [stdout]   --> src/eval.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn cdr(expression: Rc<Expression>) -> Rc<Expression> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eq`
[INFO] [stdout]   --> src/eval.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn eq(&self, expression: Rc<Expression>) -> Rc<Expression> {
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `TokenError`
[INFO] [stdout]  --> src/lexer.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     TokenError,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `builtins`
[INFO] [stdout]   --> src/eval.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     builtins: HashMap<String, Token>
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cdr`
[INFO] [stdout]   --> src/eval.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn cdr(expression: Rc<Expression>) -> Rc<Expression> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eq`
[INFO] [stdout]   --> src/eval.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn eq(&self, expression: Rc<Expression>) -> Rc<Expression> {
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "8f9a5c2fb942b91234476bb6a96f284981e9d54ef25c6a92753b1e1cd97f02aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f9a5c2fb942b91234476bb6a96f284981e9d54ef25c6a92753b1e1cd97f02aa", kill_on_drop: false }`
[INFO] [stdout] 8f9a5c2fb942b91234476bb6a96f284981e9d54ef25c6a92753b1e1cd97f02aa