[INFO] cloning repository https://github.com/Shadlock0133/clox [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Shadlock0133/clox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShadlock0133%2Fclox", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShadlock0133%2Fclox'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 43b76a4fe77418388ac360dc1bffb23a71335108 [INFO] checking Shadlock0133/clox 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%2FShadlock0133%2Fclox" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/Shadlock0133/clox [INFO] finished tweaking git repo https://github.com/Shadlock0133/clox [INFO] tweaked toml for git repo https://github.com/Shadlock0133/clox written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/Shadlock0133/clox 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/Shadlock0133/clox 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] caa67d1f532e8a3a90274bc22e34d68fa6e799b3f0b7a0e7688992c3962564de [INFO] running `Command { std: "docker" "start" "-a" "caa67d1f532e8a3a90274bc22e34d68fa6e799b3f0b7a0e7688992c3962564de", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "caa67d1f532e8a3a90274bc22e34d68fa6e799b3f0b7a0e7688992c3962564de", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "caa67d1f532e8a3a90274bc22e34d68fa6e799b3f0b7a0e7688992c3962564de", kill_on_drop: false }` [INFO] [stdout] caa67d1f532e8a3a90274bc22e34d68fa6e799b3f0b7a0e7688992c3962564de [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 82fbc170acfacb027b0d32110528543dc1f9e75fb592a18b8b60dd44c053006d [INFO] running `Command { std: "docker" "start" "-a" "82fbc170acfacb027b0d32110528543dc1f9e75fb592a18b8b60dd44c053006d", kill_on_drop: false }` [INFO] [stderr] Checking clox v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: methods `has`, `delete`, and `iter` are never used [INFO] [stdout] --> src/table.rs:34:12 [INFO] [stdout] | [INFO] [stdout] 11 | impl Table { [INFO] [stdout] | ---------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 34 | pub fn has(&self, key: &str) -> bool { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 58 | pub fn delete(&mut self, key: &str) -> Option { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 80 | pub fn iter(&self) -> impl Iterator { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Tombstone` is never constructed [INFO] [stdout] --> src/table.rs:191:5 [INFO] [stdout] | [INFO] [stdout] 188 | enum Slot { [INFO] [stdout] | ---- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 191 | Tombstone, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `hash` is never used [INFO] [stdout] --> src/value.rs:57:12 [INFO] [stdout] | [INFO] [stdout] 51 | impl ThinString { [INFO] [stdout] | --------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 57 | pub fn hash(&self) -> u32 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `has`, `delete`, and `iter` are never used [INFO] [stdout] --> src/table.rs:34:12 [INFO] [stdout] | [INFO] [stdout] 11 | impl Table { [INFO] [stdout] | ---------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 34 | pub fn has(&self, key: &str) -> bool { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 58 | pub fn delete(&mut self, key: &str) -> Option { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 80 | pub fn iter(&self) -> impl Iterator { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Tombstone` is never constructed [INFO] [stdout] --> src/table.rs:191:5 [INFO] [stdout] | [INFO] [stdout] 188 | enum Slot { [INFO] [stdout] | ---- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 191 | Tombstone, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `hash` is never used [INFO] [stdout] --> src/value.rs:57:12 [INFO] [stdout] | [INFO] [stdout] 51 | impl ThinString { [INFO] [stdout] | --------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 57 | pub fn hash(&self) -> u32 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/compiler.rs:115:13 [INFO] [stdout] | [INFO] [stdout] 115 | (self.chunk.len() - loop_start + 2).try_into().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/compiler.rs:115:13 [INFO] [stdout] | [INFO] [stdout] 115 | (self.chunk.len() - loop_start + 2).try_into().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 `clox` (bin "clox" test) due to 1 previous error; 3 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `clox` (bin "clox") due to 1 previous error; 3 warnings emitted [INFO] running `Command { std: "docker" "inspect" "82fbc170acfacb027b0d32110528543dc1f9e75fb592a18b8b60dd44c053006d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "82fbc170acfacb027b0d32110528543dc1f9e75fb592a18b8b60dd44c053006d", kill_on_drop: false }` [INFO] [stdout] 82fbc170acfacb027b0d32110528543dc1f9e75fb592a18b8b60dd44c053006d