[INFO] fetching crate hindley-milner 0.1.0... [INFO] checking hindley-milner-0.1.0 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050 [INFO] extracting crate hindley-milner 0.1.0 into /workspace/builds/worker-12/source [INFO] validating manifest of crates.io crate hindley-milner 0.1.0 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate hindley-milner 0.1.0 [INFO] finished tweaking crates.io crate hindley-milner 0.1.0 [INFO] tweaked toml for crates.io crate hindley-milner 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 79a966504941acccfe6371f91830d8ebc711d3c617ccc247ec50c96c83e9e31a [INFO] running `Command { std: "docker" "start" "-a" "79a966504941acccfe6371f91830d8ebc711d3c617ccc247ec50c96c83e9e31a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "79a966504941acccfe6371f91830d8ebc711d3c617ccc247ec50c96c83e9e31a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "79a966504941acccfe6371f91830d8ebc711d3c617ccc247ec50c96c83e9e31a", kill_on_drop: false }` [INFO] [stdout] 79a966504941acccfe6371f91830d8ebc711d3c617ccc247ec50c96c83e9e31a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 693348673fd35d0d35675dc4221b7f2a102c87a8041fe377d08e28e20b7f88bb [INFO] running `Command { std: "docker" "start" "-a" "693348673fd35d0d35675dc4221b7f2a102c87a8041fe377d08e28e20b7f88bb", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Checking maplit v0.1.6 [INFO] [stderr] Checking lazy_static v0.2.11 [INFO] [stderr] Checking hindley-milner v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred [INFO] [stdout] --> src/lib.rs:206:1 [INFO] [stdout] | [INFO] [stdout] 206 | / lazy_static! { [INFO] [stdout] 207 | | // Basic integer [INFO] [stdout] 208 | | static ref INTEGER: Type = Type::new_operator(0, "int", &[]); [INFO] [stdout] 209 | | // Basic bool [INFO] [stdout] 210 | | static ref BOOL: Type = Type::new_operator(1, "bool", &[]); [INFO] [stdout] 211 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred [INFO] [stdout] --> src/lib.rs:206:1 [INFO] [stdout] | [INFO] [stdout] 206 | / lazy_static! { [INFO] [stdout] 207 | | // Basic integer [INFO] [stdout] 208 | | static ref INTEGER: Type = Type::new_operator(0, "int", &[]); [INFO] [stdout] 209 | | // Basic bool [INFO] [stdout] 210 | | static ref BOOL: Type = Type::new_operator(1, "bool", &[]); [INFO] [stdout] 211 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred [INFO] [stdout] --> src/lib.rs:206:1 [INFO] [stdout] | [INFO] [stdout] 206 | / lazy_static! { [INFO] [stdout] 207 | | // Basic integer [INFO] [stdout] 208 | | static ref INTEGER: Type = Type::new_operator(0, "int", &[]); [INFO] [stdout] 209 | | // Basic bool [INFO] [stdout] 210 | | static ref BOOL: Type = Type::new_operator(1, "bool", &[]); [INFO] [stdout] 211 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred [INFO] [stdout] --> src/lib.rs:206:1 [INFO] [stdout] | [INFO] [stdout] 206 | / lazy_static! { [INFO] [stdout] 207 | | // Basic integer [INFO] [stdout] 208 | | static ref INTEGER: Type = Type::new_operator(0, "int", &[]); [INFO] [stdout] 209 | | // Basic bool [INFO] [stdout] 210 | | static ref BOOL: Type = Type::new_operator(1, "bool", &[]); [INFO] [stdout] 211 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Namer` [INFO] [stdout] --> src/lib.rs:77:8 [INFO] [stdout] | [INFO] [stdout] 77 | struct Namer { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `next` [INFO] [stdout] --> src/lib.rs:83:8 [INFO] [stdout] | [INFO] [stdout] 83 | fn next(&mut self) -> String { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `name` [INFO] [stdout] --> src/lib.rs:89:8 [INFO] [stdout] | [INFO] [stdout] 89 | fn name(&mut self, t: ArenaType) -> String { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `id` [INFO] [stdout] --> src/lib.rs:124:8 [INFO] [stdout] | [INFO] [stdout] 124 | fn id(&self) -> usize { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `as_string` [INFO] [stdout] --> src/lib.rs:146:8 [INFO] [stdout] | [INFO] [stdout] 146 | fn as_string(&self, a: &Vec, namer: &mut Namer) -> String { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_env` [INFO] [stdout] --> src/lib.rs:537:4 [INFO] [stdout] | [INFO] [stdout] 537 | fn test_env() -> (Vec, Env) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.30s [INFO] running `Command { std: "docker" "inspect" "693348673fd35d0d35675dc4221b7f2a102c87a8041fe377d08e28e20b7f88bb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "693348673fd35d0d35675dc4221b7f2a102c87a8041fe377d08e28e20b7f88bb", kill_on_drop: false }` [INFO] [stdout] 693348673fd35d0d35675dc4221b7f2a102c87a8041fe377d08e28e20b7f88bb