[INFO] cloning repository https://github.com/r-a303931/serpentine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/r-a303931/serpentine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fr-a303931%2Fserpentine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fr-a303931%2Fserpentine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 25f889331a428c2396d7891b02e9289b4cde10ff
[INFO] checking r-a303931/serpentine against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fr-a303931%2Fserpentine" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/r-a303931/serpentine
[INFO] finished tweaking git repo https://github.com/r-a303931/serpentine
[INFO] tweaked toml for git repo https://github.com/r-a303931/serpentine written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/r-a303931/serpentine on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/r-a303931/serpentine 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v2.0.23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d0b1cdf1b677b2f0a16a744f1123584f19e278d715c95435f170fcd522f49942
[INFO] running `Command { std: "docker" "start" "-a" "d0b1cdf1b677b2f0a16a744f1123584f19e278d715c95435f170fcd522f49942", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0b1cdf1b677b2f0a16a744f1123584f19e278d715c95435f170fcd522f49942", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0b1cdf1b677b2f0a16a744f1123584f19e278d715c95435f170fcd522f49942", kill_on_drop: false }`
[INFO] [stdout] d0b1cdf1b677b2f0a16a744f1123584f19e278d715c95435f170fcd522f49942
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3078f6d5e4e7aa5836b8a40748331b661f3a5cc9d72c3665f4c9441c7fea0cde
[INFO] running `Command { std: "docker" "start" "-a" "3078f6d5e4e7aa5836b8a40748331b661f3a5cc9d72c3665f4c9441c7fea0cde", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling async-trait v0.1.71
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]     Checking pin-project-lite v0.2.10
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling tokio v1.29.1
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]    Compiling syn v2.0.23
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling async-recursion v1.0.4
[INFO] [stderr]    Compiling serpentine-macro v0.1.0 (/opt/rustwide/workdir/serpentine-macro)
[INFO] [stdout] warning: enum `LispType` is never used
[INFO] [stdout]   --> serpentine-macro/src/lib.rs:47:6
[INFO] [stdout]    |
[INFO] [stdout] 47 | enum LispType {
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `LispType` is never used
[INFO] [stdout]   --> serpentine-macro/src/lib.rs:47:6
[INFO] [stdout]    |
[INFO] [stdout] 47 | enum LispType {
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `LispType` is never used
[INFO] [stdout]   --> serpentine-macro/src/lib.rs:47:6
[INFO] [stdout]    |
[INFO] [stdout] 47 | enum LispType {
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking serpentine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: right curly brace `}` before `else` in a `let...else` statement not allowed
[INFO] [stdout]    --> src/parser/mod.rs:464:70
[INFO] [stdout]     |
[INFO] [stdout] 464 |         let SExpression::Expr(_, v) = lisp_lit! { ([1] [2] ["test"]) } else {
[INFO] [stdout]     |                                                                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: use parentheses instead of braces for this macro
[INFO] [stdout]     |
[INFO] [stdout] 464 -         let SExpression::Expr(_, v) = lisp_lit! { ([1] [2] ["test"]) } else {
[INFO] [stdout] 464 +         let SExpression::Expr(_, v) = lisp_lit! ( ([1] [2] ["test"]) ) else {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: right curly brace `}` before `else` in a `let...else` statement not allowed
[INFO] [stdout]    --> src/parser/mod.rs:488:79
[INFO] [stdout]     |
[INFO] [stdout] 488 |         let SExpression::Quote(_, v) = lisp_lit! { (quote ([1] [2] ["test"])) } else {
[INFO] [stdout]     |                                                                               ^
[INFO] [stdout]     |
[INFO] [stdout] help: use parentheses instead of braces for this macro
[INFO] [stdout]     |
[INFO] [stdout] 488 -         let SExpression::Quote(_, v) = lisp_lit! { (quote ([1] [2] ["test"])) } else {
[INFO] [stdout] 488 +         let SExpression::Quote(_, v) = lisp_lit! ( (quote ([1] [2] ["test"])) ) else {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: right curly brace `}` before `else` in a `let...else` statement not allowed
[INFO] [stdout]    --> src/parser/mod.rs:503:84
[INFO] [stdout]     |
[INFO] [stdout] 503 |         let SExpression::UnquoteExpression(_, v) = lisp_lit! { ,([1] [2] ["test"]) } else {
[INFO] [stdout]     |                                                                                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: use parentheses instead of braces for this macro
[INFO] [stdout]     |
[INFO] [stdout] 503 -         let SExpression::UnquoteExpression(_, v) = lisp_lit! { ,([1] [2] ["test"]) } else {
[INFO] [stdout] 503 +         let SExpression::UnquoteExpression(_, v) = lisp_lit! ( ,([1] [2] ["test"]) ) else {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: right curly brace `}` before `else` in a `let...else` statement not allowed
[INFO] [stdout]    --> src/parser/mod.rs:523:82
[INFO] [stdout]     |
[INFO] [stdout] 523 |         let SExpression::ListSpliceExpr(_, v) = lisp_lit! { ,@([1] [2] ["test"]) } else {
[INFO] [stdout]     |                                                                                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: use parentheses instead of braces for this macro
[INFO] [stdout]     |
[INFO] [stdout] 523 -         let SExpression::ListSpliceExpr(_, v) = lisp_lit! { ,@([1] [2] ["test"]) } else {
[INFO] [stdout] 523 +         let SExpression::ListSpliceExpr(_, v) = lisp_lit! ( ,@([1] [2] ["test"]) ) else {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: right curly brace `}` before `else` in a `let...else` statement not allowed
[INFO] [stdout]    --> src/parser/mod.rs:464:70
[INFO] [stdout]     |
[INFO] [stdout] 464 |         let SExpression::Expr(_, v) = lisp_lit! { ([1] [2] ["test"]) } else {
[INFO] [stdout]     |                                                                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: use parentheses instead of braces for this macro
[INFO] [stdout]     |
[INFO] [stdout] 464 -         let SExpression::Expr(_, v) = lisp_lit! { ([1] [2] ["test"]) } else {
[INFO] [stdout] 464 +         let SExpression::Expr(_, v) = lisp_lit! ( ([1] [2] ["test"]) ) else {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: right curly brace `}` before `else` in a `let...else` statement not allowed
[INFO] [stdout]    --> src/parser/mod.rs:488:79
[INFO] [stdout]     |
[INFO] [stdout] 488 |         let SExpression::Quote(_, v) = lisp_lit! { (quote ([1] [2] ["test"])) } else {
[INFO] [stdout]     |                                                                               ^
[INFO] [stdout]     |
[INFO] [stdout] help: use parentheses instead of braces for this macro
[INFO] [stdout]     |
[INFO] [stdout] 488 -         let SExpression::Quote(_, v) = lisp_lit! { (quote ([1] [2] ["test"])) } else {
[INFO] [stdout] 488 +         let SExpression::Quote(_, v) = lisp_lit! ( (quote ([1] [2] ["test"])) ) else {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: right curly brace `}` before `else` in a `let...else` statement not allowed
[INFO] [stdout]    --> src/parser/mod.rs:503:84
[INFO] [stdout]     |
[INFO] [stdout] 503 |         let SExpression::UnquoteExpression(_, v) = lisp_lit! { ,([1] [2] ["test"]) } else {
[INFO] [stdout]     |                                                                                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: use parentheses instead of braces for this macro
[INFO] [stdout]     |
[INFO] [stdout] 503 -         let SExpression::UnquoteExpression(_, v) = lisp_lit! { ,([1] [2] ["test"]) } else {
[INFO] [stdout] 503 +         let SExpression::UnquoteExpression(_, v) = lisp_lit! ( ,([1] [2] ["test"]) ) else {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: right curly brace `}` before `else` in a `let...else` statement not allowed
[INFO] [stdout]    --> src/parser/mod.rs:523:82
[INFO] [stdout]     |
[INFO] [stdout] 523 |         let SExpression::ListSpliceExpr(_, v) = lisp_lit! { ,@([1] [2] ["test"]) } else {
[INFO] [stdout]     |                                                                                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: use parentheses instead of braces for this macro
[INFO] [stdout]     |
[INFO] [stdout] 523 -         let SExpression::ListSpliceExpr(_, v) = lisp_lit! { ,@([1] [2] ["test"]) } else {
[INFO] [stdout] 523 +         let SExpression::ListSpliceExpr(_, v) = lisp_lit! ( ,@([1] [2] ["test"]) ) else {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serpentine` (lib) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `serpentine` (lib test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "3078f6d5e4e7aa5836b8a40748331b661f3a5cc9d72c3665f4c9441c7fea0cde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3078f6d5e4e7aa5836b8a40748331b661f3a5cc9d72c3665f4c9441c7fea0cde", kill_on_drop: false }`
[INFO] [stdout] 3078f6d5e4e7aa5836b8a40748331b661f3a5cc9d72c3665f4c9441c7fea0cde