[INFO] cloning repository https://github.com/svernidub/sexpr [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/svernidub/sexpr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvernidub%2Fsexpr", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvernidub%2Fsexpr'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 85f61aba81fe03e102b5916653f37fabd195ee1c [INFO] checking svernidub/sexpr against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvernidub%2Fsexpr" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/svernidub/sexpr [INFO] finished tweaking git repo https://github.com/svernidub/sexpr [INFO] tweaked toml for git repo https://github.com/svernidub/sexpr written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/svernidub/sexpr on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/svernidub/sexpr 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b5a81953d43f91d61d723e89c71d2b3a17cce41b8a430e264b871855dd0e285e [INFO] running `Command { std: "docker" "start" "-a" "b5a81953d43f91d61d723e89c71d2b3a17cce41b8a430e264b871855dd0e285e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b5a81953d43f91d61d723e89c71d2b3a17cce41b8a430e264b871855dd0e285e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b5a81953d43f91d61d723e89c71d2b3a17cce41b8a430e264b871855dd0e285e", kill_on_drop: false }` [INFO] [stdout] b5a81953d43f91d61d723e89c71d2b3a17cce41b8a430e264b871855dd0e285e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d0805feca969bb45aa8f41889b7275c194cf3fce1cdf4eb18b2de73e2b9216ae [INFO] running `Command { std: "docker" "start" "-a" "d0805feca969bb45aa8f41889b7275c194cf3fce1cdf4eb18b2de73e2b9216ae", kill_on_drop: false }` [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking sexpr v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] error: could not compile `sexpr` (bin "sexpr") due to 1 previous error; 10 warnings emitted [INFO] [stdout] warning: enum `SExpr` is never used [INFO] [stdout] --> src/sexpr/expr.rs:5:10 [INFO] [stdout] | [INFO] [stdout] 5 | pub enum SExpr { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: enum `Expr` is never used [INFO] [stdout] --> src/sexpr/sexpr_parser.rs:8:10 [INFO] [stdout] | [INFO] [stdout] 8 | pub enum Expr { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `parse` is never used [INFO] [stdout] --> src/sexpr/sexpr_parser.rs:17:8 [INFO] [stdout] | [INFO] [stdout] 17 | pub fn parse<'a>(sexpr: String) -> Result { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `is_end_terminator` is never used [INFO] [stdout] --> src/sexpr/sexpr_parser.rs:103:4 [INFO] [stdout] | [INFO] [stdout] 103 | fn is_end_terminator(token: char) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `is_start_terminator` is never used [INFO] [stdout] --> src/sexpr/sexpr_parser.rs:107:4 [INFO] [stdout] | [INFO] [stdout] 107 | fn is_start_terminator(token: char) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `is_list_end_terminator` is never used [INFO] [stdout] --> src/sexpr/sexpr_parser.rs:111:4 [INFO] [stdout] | [INFO] [stdout] 111 | fn is_list_end_terminator(token: char) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `is_list_start_terminator` is never used [INFO] [stdout] --> src/sexpr/sexpr_parser.rs:115:4 [INFO] [stdout] | [INFO] [stdout] 115 | fn is_list_start_terminator(token: char) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `parse_expr` is never used [INFO] [stdout] --> src/sexpr/expr_parser.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn parse_expr<'a>(sexpr: String) -> Result { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `parse` is never used [INFO] [stdout] --> src/sexpr/parse_to_ast.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn parse<'a>(expressions: Vec) -> Result { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `transform_expressions` is never used [INFO] [stdout] --> src/sexpr/parse_to_ast.rs:19:4 [INFO] [stdout] | [INFO] [stdout] 19 | fn transform_expressions<'a>(expressions: Vec) -> Result>, &'a str> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/sexpr/expr_parser.rs:20:30 [INFO] [stdout] | [INFO] [stdout] 20 | return Ok(StringExpr(sexpr[1..sexpr.len()-1].parse().unwrap())) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/sexpr/expr_parser.rs:20:30 [INFO] [stdout] | [INFO] [stdout] 20 | return Ok(StringExpr(sexpr[1..sexpr.len()-1].parse().unwrap())) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `sexpr` (bin "sexpr" test) due to 1 previous error [INFO] running `Command { std: "docker" "inspect" "d0805feca969bb45aa8f41889b7275c194cf3fce1cdf4eb18b2de73e2b9216ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d0805feca969bb45aa8f41889b7275c194cf3fce1cdf4eb18b2de73e2b9216ae", kill_on_drop: false }` [INFO] [stdout] d0805feca969bb45aa8f41889b7275c194cf3fce1cdf4eb18b2de73e2b9216ae