[INFO] cloning repository https://github.com/Hfalcon13/my-immutable-collections [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Hfalcon13/my-immutable-collections" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHfalcon13%2Fmy-immutable-collections", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHfalcon13%2Fmy-immutable-collections'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 29f23db6daca069aed930b75d95700d337b23f11 [INFO] checking Hfalcon13/my-immutable-collections/29f23db6daca069aed930b75d95700d337b23f11 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHfalcon13%2Fmy-immutable-collections" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Hfalcon13/my-immutable-collections on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Hfalcon13/my-immutable-collections [INFO] finished tweaking git repo https://github.com/Hfalcon13/my-immutable-collections [INFO] tweaked toml for git repo https://github.com/Hfalcon13/my-immutable-collections written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/Hfalcon13/my-immutable-collections 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2ab7b7e69b82656956a7e070c095e94a0dd647cf594649973f3625accef4ba89 [INFO] running `Command { std: "docker" "start" "-a" "2ab7b7e69b82656956a7e070c095e94a0dd647cf594649973f3625accef4ba89", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2ab7b7e69b82656956a7e070c095e94a0dd647cf594649973f3625accef4ba89", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2ab7b7e69b82656956a7e070c095e94a0dd647cf594649973f3625accef4ba89", kill_on_drop: false }` [INFO] [stdout] 2ab7b7e69b82656956a7e070c095e94a0dd647cf594649973f3625accef4ba89 [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 -Dtail_expr_drop_order" "-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7a1feffdb1d24dea042ae055803b508714d2dffff7fc2ccb21f24182fd6a4236 [INFO] running `Command { std: "docker" "start" "-a" "7a1feffdb1d24dea042ae055803b508714d2dffff7fc2ccb21f24182fd6a4236", kill_on_drop: false }` [INFO] [stderr] Checking collections v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variants `Thili` and `Sofi` are never constructed [INFO] [stdout] --> src/traversion_options.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 4 | pub enum TraversionOptions { [INFO] [stdout] | ----------------- variants in this enum [INFO] [stdout] 5 | Thili, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 6 | Tohi, [INFO] [stdout] 7 | Sofi [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `TraversionOptions` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Node` is never constructed [INFO] [stdout] --> src/list.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct Node [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Node` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `insert` are never used [INFO] [stdout] --> src/list.rs:12:12 [INFO] [stdout] | [INFO] [stdout] 10 | impl Node [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 11 | { [INFO] [stdout] 12 | pub fn new(val: T) -> Node [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 16 | pub fn insert(self, val: T) -> Node [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `contains` is never used [INFO] [stdout] --> src/list.rs:31:12 [INFO] [stdout] | [INFO] [stdout] 29 | impl Node [INFO] [stdout] | -------------------------- method in this implementation [INFO] [stdout] 30 | { [INFO] [stdout] 31 | pub fn contains(self, val: T) -> bool [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Thili` and `Sofi` are never constructed [INFO] [stdout] --> src/traversion_options.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 4 | pub enum TraversionOptions { [INFO] [stdout] | ----------------- variants in this enum [INFO] [stdout] 5 | Thili, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 6 | Tohi, [INFO] [stdout] 7 | Sofi [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `TraversionOptions` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Node` is never constructed [INFO] [stdout] --> src/list.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct Node [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Node` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `insert` are never used [INFO] [stdout] --> src/list.rs:12:12 [INFO] [stdout] | [INFO] [stdout] 10 | impl Node [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 11 | { [INFO] [stdout] 12 | pub fn new(val: T) -> Node [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 16 | pub fn insert(self, val: T) -> Node [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `contains` is never used [INFO] [stdout] --> src/list.rs:31:12 [INFO] [stdout] | [INFO] [stdout] 29 | impl Node [INFO] [stdout] | -------------------------- method in this implementation [INFO] [stdout] 30 | { [INFO] [stdout] 31 | pub fn contains(self, val: T) -> bool [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s [INFO] running `Command { std: "docker" "inspect" "7a1feffdb1d24dea042ae055803b508714d2dffff7fc2ccb21f24182fd6a4236", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7a1feffdb1d24dea042ae055803b508714d2dffff7fc2ccb21f24182fd6a4236", kill_on_drop: false }` [INFO] [stdout] 7a1feffdb1d24dea042ae055803b508714d2dffff7fc2ccb21f24182fd6a4236