[INFO] cloning repository https://github.com/rn7s2/RustScheme
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rn7s2/RustScheme" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frn7s2%2FRustScheme", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frn7s2%2FRustScheme'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2d684845495f4902a1b03ec97847d8aacb0975b2
[INFO] checking rn7s2/RustScheme against master#0f353363965ebf05e0757f7679c800b39c51a07e for pr-144896
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frn7s2%2FRustScheme" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rn7s2/RustScheme
[INFO] finished tweaking git repo https://github.com/rn7s2/RustScheme
[INFO] tweaked toml for git repo https://github.com/rn7s2/RustScheme written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rn7s2/RustScheme on toolchain 0f353363965ebf05e0757f7679c800b39c51a07e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f353363965ebf05e0757f7679c800b39c51a07e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rn7s2/RustScheme 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" "+0f353363965ebf05e0757f7679c800b39c51a07e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+0f353363965ebf05e0757f7679c800b39c51a07e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b8277dbe8a5d9153c5eb26fab722dad7d84a51ba107f4768953b310f6d1eb365
[INFO] running `Command { std: "docker" "start" "-a" "b8277dbe8a5d9153c5eb26fab722dad7d84a51ba107f4768953b310f6d1eb365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8277dbe8a5d9153c5eb26fab722dad7d84a51ba107f4768953b310f6d1eb365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8277dbe8a5d9153c5eb26fab722dad7d84a51ba107f4768953b310f6d1eb365", kill_on_drop: false }`
[INFO] [stdout] b8277dbe8a5d9153c5eb26fab722dad7d84a51ba107f4768953b310f6d1eb365
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+0f353363965ebf05e0757f7679c800b39c51a07e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 441d8c07e81ac833dac4e77ad58cc3d71c1cda9cc2c946b9d57e12a0579a0665
[INFO] running `Command { std: "docker" "start" "-a" "441d8c07e81ac833dac4e77ad58cc3d71c1cda9cc2c946b9d57e12a0579a0665", kill_on_drop: false }`
[INFO] [stderr]     Checking scheme v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/evaluator.rs:24:35
[INFO] [stdout]    |
[INFO] [stdout] 24 |           Procedure::Compound(p) => {
[INFO] [stdout]    |  ___________________________________^
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |         }
[INFO] [stdout]    | |_________^ expected `Result<Value, ()>`, found `()`
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Result<Value, ()>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/evaluator.rs:24:35
[INFO] [stdout]    |
[INFO] [stdout] 24 |           Procedure::Compound(p) => {
[INFO] [stdout]    |  ___________________________________^
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |         }
[INFO] [stdout]    | |_________^ expected `Result<Value, ()>`, found `()`
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Result<Value, ()>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]   --> src/analyzer.rs:60:15
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]    |               ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]   --> src/analyzer.rs:60:15
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]    |               ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]   --> src/analyzer.rs:70:15
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]    |               ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]   --> src/analyzer.rs:70:15
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]    |               ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]   --> src/analyzer.rs:83:15
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]    |               ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]   --> src/analyzer.rs:83:15
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]    |               ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]   --> src/analyzer.rs:83:30
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]   --> src/analyzer.rs:83:30
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]   --> src/analyzer.rs:93:15
[INFO] [stdout]    |
[INFO] [stdout] 93 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]    |               ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]   --> src/analyzer.rs:93:15
[INFO] [stdout]    |
[INFO] [stdout] 93 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]    |               ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]   --> src/analyzer.rs:93:30
[INFO] [stdout]    |
[INFO] [stdout] 93 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]   --> src/analyzer.rs:93:30
[INFO] [stdout]    |
[INFO] [stdout] 93 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/analyzer.rs:103:15
[INFO] [stdout]     |
[INFO] [stdout] 103 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]     |               ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/analyzer.rs:103:15
[INFO] [stdout]     |
[INFO] [stdout] 103 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]     |               ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/analyzer.rs:103:30
[INFO] [stdout]     |
[INFO] [stdout] 103 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/analyzer.rs:103:30
[INFO] [stdout]     |
[INFO] [stdout] 103 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/analyzer.rs:114:15
[INFO] [stdout]     |
[INFO] [stdout] 114 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]     |               ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/analyzer.rs:114:15
[INFO] [stdout]     |
[INFO] [stdout] 114 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]     |               ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/analyzer.rs:114:30
[INFO] [stdout]     |
[INFO] [stdout] 114 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/analyzer.rs:114:30
[INFO] [stdout]     |
[INFO] [stdout] 114 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/analyzer.rs:137:15
[INFO] [stdout]     |
[INFO] [stdout] 137 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]     |               ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/analyzer.rs:137:15
[INFO] [stdout]     |
[INFO] [stdout] 137 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]     |               ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/analyzer.rs:137:30
[INFO] [stdout]     |
[INFO] [stdout] 137 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/analyzer.rs:137:30
[INFO] [stdout]     |
[INFO] [stdout] 137 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/analyzer.rs:144:15
[INFO] [stdout]     |
[INFO] [stdout] 144 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]     |               ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/analyzer.rs:144:15
[INFO] [stdout]     |
[INFO] [stdout] 144 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]     |               ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/analyzer.rs:144:30
[INFO] [stdout]     |
[INFO] [stdout] 144 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/analyzer.rs:144:30
[INFO] [stdout]     |
[INFO] [stdout] 144 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/analyzer.rs:150:15
[INFO] [stdout]     |
[INFO] [stdout] 150 | fn cond_to_if(e: Sexpr) -> Result<Expression, ()> {
[INFO] [stdout]     |               ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/analyzer.rs:150:15
[INFO] [stdout]     |
[INFO] [stdout] 150 | fn cond_to_if(e: Sexpr) -> Result<Expression, ()> {
[INFO] [stdout]     |               ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/analyzer.rs:158:15
[INFO] [stdout]     |
[INFO] [stdout] 158 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]     |               ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/analyzer.rs:158:15
[INFO] [stdout]     |
[INFO] [stdout] 158 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]     |               ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/analyzer.rs:158:30
[INFO] [stdout]     |
[INFO] [stdout] 158 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/analyzer.rs:158:30
[INFO] [stdout]     |
[INFO] [stdout] 158 |     fn helper(env: &mut Env, p: LambdaParam) -> Result<Value, ()> {
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `text`
[INFO] [stdout]   --> src/lexer.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn lex(text: String) -> Result<Sexpr, String> {
[INFO] [stdout]    |            ^^^^ help: if this is intentional, prefix it with an underscore: `_text`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `text`
[INFO] [stdout]   --> src/lexer.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn lex(text: String) -> Result<Sexpr, String> {
[INFO] [stdout]    |            ^^^^ help: if this is intentional, prefix it with an underscore: `_text`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `scheme` (bin "scheme" test) due to 1 previous error; 18 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `scheme` (bin "scheme") due to 1 previous error; 18 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "441d8c07e81ac833dac4e77ad58cc3d71c1cda9cc2c946b9d57e12a0579a0665", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "441d8c07e81ac833dac4e77ad58cc3d71c1cda9cc2c946b9d57e12a0579a0665", kill_on_drop: false }`
[INFO] [stdout] 441d8c07e81ac833dac4e77ad58cc3d71c1cda9cc2c946b9d57e12a0579a0665