[INFO] fetching crate hindley-milner 0.1.0...
[INFO] checking hindley-milner-0.1.0 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate hindley-milner 0.1.0 into /workspace/builds/worker-1-tc2/source
[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-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate hindley-milner 0.1.0 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] [stderr]       Adding lazy_static v0.2.11 (available: v1.5.0)
[INFO] [stderr]       Adding maplit v0.1.6 (available: v1.0.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4aa52a31210686b7240a82a1a324fcbff172f27b8bf8030e2ddbf22612ab336d
[INFO] running `Command { std: "docker" "start" "-a" "4aa52a31210686b7240a82a1a324fcbff172f27b8bf8030e2ddbf22612ab336d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4aa52a31210686b7240a82a1a324fcbff172f27b8bf8030e2ddbf22612ab336d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4aa52a31210686b7240a82a1a324fcbff172f27b8bf8030e2ddbf22612ab336d", kill_on_drop: false }`
[INFO] [stdout] 4aa52a31210686b7240a82a1a324fcbff172f27b8bf8030e2ddbf22612ab336d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "-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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a4d12ecb2c18f3c6081be0bec6ea77b9a0a30bfbad5a27c5b3dd55ab1a72914
[INFO] running `Command { std: "docker" "start" "-a" "5a4d12ecb2c18f3c6081be0bec6ea77b9a0a30bfbad5a27c5b3dd55ab1a72914", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[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 `Once::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] ...   |
[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` which comes from the expansion of the macro `lazy_static` (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 `Once::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] ...   |
[INFO] [stdout] 211 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (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 `Once::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] ...   |
[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` which comes from the expansion of the macro `lazy_static` (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 `Once::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] ...   |
[INFO] [stdout] 211 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` which comes from the expansion of the macro `lazy_static` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Namer` is never constructed
[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: methods `next` and `name` are never used
[INFO] [stdout]   --> src/lib.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 82 | impl Namer {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] 83 |     fn next(&mut self) -> String {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |     fn name(&mut self, t: ArenaType) -> String {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `id` and `as_string` are never used
[INFO] [stdout]    --> src/lib.rs:124:8
[INFO] [stdout]     |
[INFO] [stdout] 108 | impl Type {
[INFO] [stdout]     | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 124 |     fn id(&self) -> usize {
[INFO] [stdout]     |        ^^
[INFO] [stdout] ...
[INFO] [stdout] 146 |     fn as_string(&self, a: &Vec<Type>, namer: &mut Namer) -> String {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_env` is never used
[INFO] [stdout]    --> src/lib.rs:537:4
[INFO] [stdout]     |
[INFO] [stdout] 537 | fn test_env() -> (Vec<Type>, Env) {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "5a4d12ecb2c18f3c6081be0bec6ea77b9a0a30bfbad5a27c5b3dd55ab1a72914", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a4d12ecb2c18f3c6081be0bec6ea77b9a0a30bfbad5a27c5b3dd55ab1a72914", kill_on_drop: false }`
[INFO] [stdout] 5a4d12ecb2c18f3c6081be0bec6ea77b9a0a30bfbad5a27c5b3dd55ab1a72914