[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 master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fosmanmesutozcan%2Fschwifty" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/osmanmesutozcan/schwifty on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-2-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a465160fec919bc7d1cd7233860ef553fa2ccc1b6a4d3965da288504dcc29eb
[INFO] running `Command { std: "docker" "start" "-a" "0a465160fec919bc7d1cd7233860ef553fa2ccc1b6a4d3965da288504dcc29eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a465160fec919bc7d1cd7233860ef553fa2ccc1b6a4d3965da288504dcc29eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a465160fec919bc7d1cd7233860ef553fa2ccc1b6a4d3965da288504dcc29eb", kill_on_drop: false }`
[INFO] [stdout] 0a465160fec919bc7d1cd7233860ef553fa2ccc1b6a4d3965da288504dcc29eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1dc5c903b7fe443e6da1757f53bce6527cf649a8efaa29760cf68a28ff2a6eee
[INFO] running `Command { std: "docker" "start" "-a" "1dc5c903b7fe443e6da1757f53bce6527cf649a8efaa29760cf68a28ff2a6eee", kill_on_drop: false }`
[INFO] [stderr]     Checking schwifty v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `TokenError` is never constructed
[INFO] [stdout]  --> src/lexer.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum TokenType {
[INFO] [stdout]   |          --------- variant in this enum
[INFO] [stdout] 8 |     TokenError,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `TokenType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `builtins` is never read
[INFO] [stdout]   --> src/eval.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Environment {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 11 |     builtins: HashMap<String, Token>
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `cdr` and `eq` are never used
[INFO] [stdout]   --> src/eval.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Environment {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 67 |     pub fn cdr(expression: Rc<Expression>) -> Rc<Expression> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |     pub fn eq(&self, expression: Rc<Expression>) -> Rc<Expression> {
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `TokenError` is never constructed
[INFO] [stdout]  --> src/lexer.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum TokenType {
[INFO] [stdout]   |          --------- variant in this enum
[INFO] [stdout] 8 |     TokenError,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `TokenType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `builtins` is never read
[INFO] [stdout]   --> src/eval.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Environment {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 11 |     builtins: HashMap<String, Token>
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `cdr` and `eq` are never used
[INFO] [stdout]   --> src/eval.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Environment {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 67 |     pub fn cdr(expression: Rc<Expression>) -> Rc<Expression> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |     pub fn eq(&self, expression: Rc<Expression>) -> Rc<Expression> {
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "1dc5c903b7fe443e6da1757f53bce6527cf649a8efaa29760cf68a28ff2a6eee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dc5c903b7fe443e6da1757f53bce6527cf649a8efaa29760cf68a28ff2a6eee", kill_on_drop: false }`
[INFO] [stdout] 1dc5c903b7fe443e6da1757f53bce6527cf649a8efaa29760cf68a28ff2a6eee
[INFO] checking osmanmesutozcan/schwifty against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fosmanmesutozcan%2Fschwifty" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/osmanmesutozcan/schwifty on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-2-tc2/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 354ac136d10ae44fd4bf0922eb04abefbc81ecef3337635dddb7c4a5195ee2e3
[INFO] running `Command { std: "docker" "start" "-a" "354ac136d10ae44fd4bf0922eb04abefbc81ecef3337635dddb7c4a5195ee2e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "354ac136d10ae44fd4bf0922eb04abefbc81ecef3337635dddb7c4a5195ee2e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "354ac136d10ae44fd4bf0922eb04abefbc81ecef3337635dddb7c4a5195ee2e3", kill_on_drop: false }`
[INFO] [stdout] 354ac136d10ae44fd4bf0922eb04abefbc81ecef3337635dddb7c4a5195ee2e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b277a44a2917035b13daa455028759f62362f08ab8efdb3a2f6827a01b5fd1c
[INFO] running `Command { std: "docker" "start" "-a" "4b277a44a2917035b13daa455028759f62362f08ab8efdb3a2f6827a01b5fd1c", kill_on_drop: false }`
[INFO] [stderr]     Checking schwifty v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `TokenError` is never constructed
[INFO] [stdout]  --> src/lexer.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum TokenType {
[INFO] [stdout]   |          --------- variant in this enum
[INFO] [stdout] 8 |     TokenError,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `TokenType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `builtins` is never read
[INFO] [stdout]   --> src/eval.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Environment {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 11 |     builtins: HashMap<String, Token>
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `cdr` and `eq` are never used
[INFO] [stdout]   --> src/eval.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Environment {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 67 |     pub fn cdr(expression: Rc<Expression>) -> Rc<Expression> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |     pub fn eq(&self, expression: Rc<Expression>) -> Rc<Expression> {
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `TokenError` is never constructed
[INFO] [stdout]  --> src/lexer.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum TokenType {
[INFO] [stdout]   |          --------- variant in this enum
[INFO] [stdout] 8 |     TokenError,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `TokenType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `builtins` is never read
[INFO] [stdout]   --> src/eval.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Environment {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 11 |     builtins: HashMap<String, Token>
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `cdr` and `eq` are never used
[INFO] [stdout]   --> src/eval.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Environment {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 67 |     pub fn cdr(expression: Rc<Expression>) -> Rc<Expression> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |     pub fn eq(&self, expression: Rc<Expression>) -> Rc<Expression> {
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "4b277a44a2917035b13daa455028759f62362f08ab8efdb3a2f6827a01b5fd1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b277a44a2917035b13daa455028759f62362f08ab8efdb3a2f6827a01b5fd1c", kill_on_drop: false }`
[INFO] [stdout] 4b277a44a2917035b13daa455028759f62362f08ab8efdb3a2f6827a01b5fd1c