[INFO] cloning repository https://github.com/epichalcon/mylanguage
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/epichalcon/mylanguage" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fepichalcon%2Fmylanguage", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fepichalcon%2Fmylanguage'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ec440ea0d3ec98ca171f144392a2908ed9e35ac4
[INFO] checking epichalcon/mylanguage 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%2Fepichalcon%2Fmylanguage" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/epichalcon/mylanguage
[INFO] finished tweaking git repo https://github.com/epichalcon/mylanguage
[INFO] tweaked toml for git repo https://github.com/epichalcon/mylanguage written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/epichalcon/mylanguage 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/epichalcon/mylanguage 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] dfe4757927cc705b64d21b784bc7ca5ce87b83820de839bbc4140cf7dd2a1035
[INFO] running `Command { std: "docker" "start" "-a" "dfe4757927cc705b64d21b784bc7ca5ce87b83820de839bbc4140cf7dd2a1035", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfe4757927cc705b64d21b784bc7ca5ce87b83820de839bbc4140cf7dd2a1035", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfe4757927cc705b64d21b784bc7ca5ce87b83820de839bbc4140cf7dd2a1035", kill_on_drop: false }`
[INFO] [stdout] dfe4757927cc705b64d21b784bc7ca5ce87b83820de839bbc4140cf7dd2a1035
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] ef0753edc26abb8ef371f03a6a06eb73d5e576603006a0e2706fc300dd09610a
[INFO] running `Command { std: "docker" "start" "-a" "ef0753edc26abb8ef371f03a6a06eb73d5e576603006a0e2706fc300dd09610a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.74
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]    Compiling serde v1.0.194
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.46
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.194
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking docopt v1.1.1
[INFO] [stderr]     Checking halcon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Null` is never constructed
[INFO] [stdout]    --> src/object/mod.rs:119:12
[INFO] [stdout]     |
[INFO] [stdout] 119 | pub struct Null {}
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/evaluator/mod.rs:830:32
[INFO] [stdout]     |
[INFO] [stdout] 830 |         let left_val: String = left.inspect().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<std::string::String, Infallible>
[INFO] [stdout]    --> src/evaluator/mod.rs:831:33
[INFO] [stdout]     |
[INFO] [stdout] 831 |         let right_val: String = right.inspect().parse().unwrap();
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]    --> src/object/mod.rs:248:5
[INFO] [stdout]     |
[INFO] [stdout] 246 | #[derive(Debug, Eq, PartialEq, Clone)]
[INFO] [stdout]     |                     --------- in this derive macro expansion
[INFO] [stdout] 247 | pub struct Builtin {
[INFO] [stdout] 248 |     pub function: BuiltinFunction,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the address of the same function can vary between different codegen units
[INFO] [stdout]     = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]     = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]     = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `halcon` (bin "halcon") due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: struct `Null` is never constructed
[INFO] [stdout]    --> src/object/mod.rs:119:12
[INFO] [stdout]     |
[INFO] [stdout] 119 | pub struct Null {}
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/evaluator/mod.rs:830:32
[INFO] [stdout]     |
[INFO] [stdout] 830 |         let left_val: String = left.inspect().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<std::string::String, Infallible>
[INFO] [stdout]    --> src/evaluator/mod.rs:831:33
[INFO] [stdout]     |
[INFO] [stdout] 831 |         let right_val: String = right.inspect().parse().unwrap();
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]    --> src/object/mod.rs:248:5
[INFO] [stdout]     |
[INFO] [stdout] 246 | #[derive(Debug, Eq, PartialEq, Clone)]
[INFO] [stdout]     |                     --------- in this derive macro expansion
[INFO] [stdout] 247 | pub struct Builtin {
[INFO] [stdout] 248 |     pub function: BuiltinFunction,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the address of the same function can vary between different codegen units
[INFO] [stdout]     = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]     = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]     = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `halcon` (bin "halcon" test) due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "ef0753edc26abb8ef371f03a6a06eb73d5e576603006a0e2706fc300dd09610a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef0753edc26abb8ef371f03a6a06eb73d5e576603006a0e2706fc300dd09610a", kill_on_drop: false }`
[INFO] [stdout] ef0753edc26abb8ef371f03a6a06eb73d5e576603006a0e2706fc300dd09610a
