[INFO] cloning repository https://github.com/g-w1/ezc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/g-w1/ezc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fg-w1%2Fezc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fg-w1%2Fezc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1ad3abc9c76920f86633473b9defc46044f8f36d
[INFO] checking g-w1/ezc against try#075992eda207e1647b699c8c8ada67b32ce7b115 for pr-77271
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fg-w1%2Fezc" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/g-w1/ezc on toolchain 075992eda207e1647b699c8c8ada67b32ce7b115
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/g-w1/ezc
[INFO] finished tweaking git repo https://github.com/g-w1/ezc
[INFO] tweaked toml for git repo https://github.com/g-w1/ezc written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/g-w1/ezc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 493d38a1281a25784a01376a03d9c910bcc07bd4000102f6b1efff7a9b65a73f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "493d38a1281a25784a01376a03d9c910bcc07bd4000102f6b1efff7a9b65a73f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "493d38a1281a25784a01376a03d9c910bcc07bd4000102f6b1efff7a9b65a73f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "493d38a1281a25784a01376a03d9c910bcc07bd4000102f6b1efff7a9b65a73f", kill_on_drop: false }`
[INFO] [stdout] 493d38a1281a25784a01376a03d9c910bcc07bd4000102f6b1efff7a9b65a73f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69ec130b3f20232e3105926fe843d086fb8a52687978135a6724c1bd514b6b33
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "69ec130b3f20232e3105926fe843d086fb8a52687978135a6724c1bd514b6b33", kill_on_drop: false }`
[INFO] [stderr]     Checking ezc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/cmdline.rs:78:16
[INFO] [stdout]    |
[INFO] [stdout] 78 |             Ok(t) => {
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/codegen.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |         args: HashMap<String, u32>,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `body`
[INFO] [stdout]    --> src/codegen.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 110 |         body: Vec<AstNode>,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_body`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]    --> src/codegen.rs:207:35
[INFO] [stdout]     |
[INFO] [stdout] 207 |                 AstNode::Return { val } => unimplemented!(),
[INFO] [stdout]     |                                   ^^^ help: try ignoring the field: `val: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]    --> src/codegen.rs:248:35
[INFO] [stdout]     |
[INFO] [stdout] 248 |                 AstNode::Return { val } => unimplemented!(),
[INFO] [stdout]     |                                   ^^^ help: try ignoring the field: `val: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/cmdline.rs:78:16
[INFO] [stdout]    |
[INFO] [stdout] 78 |             Ok(t) => {
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/codegen.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |         args: HashMap<String, u32>,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `body`
[INFO] [stdout]    --> src/codegen.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 110 |         body: Vec<AstNode>,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_body`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]    --> src/codegen.rs:207:35
[INFO] [stdout]     |
[INFO] [stdout] 207 |                 AstNode::Return { val } => unimplemented!(),
[INFO] [stdout]     |                                   ^^^ help: try ignoring the field: `val: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]    --> src/codegen.rs:248:35
[INFO] [stdout]     |
[INFO] [stdout] 248 |                 AstNode::Return { val } => unimplemented!(),
[INFO] [stdout]     |                                   ^^^ help: try ignoring the field: `val: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FUNCTION_PARAMS`
[INFO] [stdout]  --> src/codegen.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | const FUNCTION_PARAMS: [&str; 6] = ["rdi", "rsi", "rdx", "rcx", "r8", "r9"];
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_fn_param`
[INFO] [stdout]   --> src/codegen.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn get_fn_param(x: u32) -> Option<&'static str> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `peek`
[INFO] [stdout]   --> src/parser.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn peek(self: &mut Self) -> Token {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FUNCTION_PARAMS`
[INFO] [stdout]  --> src/codegen.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | const FUNCTION_PARAMS: [&str; 6] = ["rdi", "rsi", "rdx", "rcx", "r8", "r9"];
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_fn_param`
[INFO] [stdout]   --> src/codegen.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn get_fn_param(x: u32) -> Option<&'static str> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `peek`
[INFO] [stdout]   --> src/parser.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn peek(self: &mut Self) -> Token {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "69ec130b3f20232e3105926fe843d086fb8a52687978135a6724c1bd514b6b33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69ec130b3f20232e3105926fe843d086fb8a52687978135a6724c1bd514b6b33", kill_on_drop: false }`
[INFO] [stdout] 69ec130b3f20232e3105926fe843d086fb8a52687978135a6724c1bd514b6b33