[INFO] cloning repository https://github.com/motokishibata/rustcc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/motokishibata/rustcc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmotokishibata%2Frustcc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmotokishibata%2Frustcc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ac2c42a635e1dc8ac75bc8274643c01fee1fd9cc
[INFO] checking motokishibata/rustcc against try#a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399 for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmotokishibata%2Frustcc" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/motokishibata/rustcc
[INFO] finished tweaking git repo https://github.com/motokishibata/rustcc
[INFO] tweaked toml for git repo https://github.com/motokishibata/rustcc written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/motokishibata/rustcc on toolchain a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/motokishibata/rustcc 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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c70cad5ca76c91eaab2d8ee5628b9bce2896968dd4b9636ec53ba62e8ca31e4
[INFO] running `Command { std: "docker" "start" "-a" "0c70cad5ca76c91eaab2d8ee5628b9bce2896968dd4b9636ec53ba62e8ca31e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c70cad5ca76c91eaab2d8ee5628b9bce2896968dd4b9636ec53ba62e8ca31e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c70cad5ca76c91eaab2d8ee5628b9bce2896968dd4b9636ec53ba62e8ca31e4", kill_on_drop: false }`
[INFO] [stdout] 0c70cad5ca76c91eaab2d8ee5628b9bce2896968dd4b9636ec53ba62e8ca31e4
[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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54ab05370b47295baee8177f2ee742e3c36366ea59a0d75c6173a624bad225b0
[INFO] running `Command { std: "docker" "start" "-a" "54ab05370b47295baee8177f2ee742e3c36366ea59a0d75c6173a624bad225b0", kill_on_drop: false }`
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking rustcc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parse.rs:27:14
[INFO] [stdout]    |
[INFO] [stdout] 27 |     Negative(Box<NodeType>),        // -
[INFO] [stdout]    |     -------- ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NodeType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 27 -     Negative(Box<NodeType>),        // -
[INFO] [stdout] 27 +     Negative(()),        // -
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/parse.rs:29:10
[INFO] [stdout]    |
[INFO] [stdout] 29 |     Call(String, Vec<NodeType>),
[INFO] [stdout]    |     ---- ^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NodeType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 29 -     Call(String, Vec<NodeType>),
[INFO] [stdout] 29 +     Call((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/parse.rs:34:11
[INFO] [stdout]    |
[INFO] [stdout] 34 |     While(Box<NodeType>, Box<NodeType>),
[INFO] [stdout]    |     ----- ^^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NodeType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 34 -     While(Box<NodeType>, Box<NodeType>),
[INFO] [stdout] 34 +     While((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read
[INFO] [stdout]   --> src/parse.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     For(Option<Box<NodeType>>, Option<Box<NodeType>>, Option<Box<NodeType>>, Box<NodeType>),
[INFO] [stdout]    |     --- ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NodeType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 35 -     For(Option<Box<NodeType>>, Option<Box<NodeType>>, Option<Box<NodeType>>, Box<NodeType>),
[INFO] [stdout] 35 +     For((), (), (), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `len` is never read
[INFO] [stdout]   --> src/parse.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct LVar {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 43 |     pub name: String,
[INFO] [stdout] 44 |     pub len: i32,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LVar` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `stacksize` is never read
[INFO] [stdout]   --> src/gen_ir.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct Function {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 40 |     pub stacksize: usize,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Function` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Call` is never constructed
[INFO] [stdout]   --> src/gen_ir.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub enum IROp {
[INFO] [stdout]    |          ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 65 |     Call(String, usize),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IROp` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ARGREGS` is never used
[INFO] [stdout]  --> src/gen_x86.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | const ARGREGS: [&str; 6] = ["rdi", "rsi", "rdx", "rcx", "r8", "r9"];
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parse.rs:27:14
[INFO] [stdout]    |
[INFO] [stdout] 27 |     Negative(Box<NodeType>),        // -
[INFO] [stdout]    |     -------- ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NodeType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 27 -     Negative(Box<NodeType>),        // -
[INFO] [stdout] 27 +     Negative(()),        // -
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/parse.rs:29:10
[INFO] [stdout]    |
[INFO] [stdout] 29 |     Call(String, Vec<NodeType>),
[INFO] [stdout]    |     ---- ^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NodeType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 29 -     Call(String, Vec<NodeType>),
[INFO] [stdout] 29 +     Call((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/parse.rs:34:11
[INFO] [stdout]    |
[INFO] [stdout] 34 |     While(Box<NodeType>, Box<NodeType>),
[INFO] [stdout]    |     ----- ^^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NodeType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 34 -     While(Box<NodeType>, Box<NodeType>),
[INFO] [stdout] 34 +     While((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read
[INFO] [stdout]   --> src/parse.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     For(Option<Box<NodeType>>, Option<Box<NodeType>>, Option<Box<NodeType>>, Box<NodeType>),
[INFO] [stdout]    |     --- ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NodeType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 35 -     For(Option<Box<NodeType>>, Option<Box<NodeType>>, Option<Box<NodeType>>, Box<NodeType>),
[INFO] [stdout] 35 +     For((), (), (), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `len` is never read
[INFO] [stdout]   --> src/parse.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct LVar {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 43 |     pub name: String,
[INFO] [stdout] 44 |     pub len: i32,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LVar` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `stacksize` is never read
[INFO] [stdout]   --> src/gen_ir.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct Function {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 40 |     pub stacksize: usize,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Function` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Call` is never constructed
[INFO] [stdout]   --> src/gen_ir.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub enum IROp {
[INFO] [stdout]    |          ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 65 |     Call(String, usize),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IROp` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ARGREGS` is never used
[INFO] [stdout]  --> src/gen_x86.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | const ARGREGS: [&str; 6] = ["rdi", "rsi", "rdx", "rcx", "r8", "r9"];
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "54ab05370b47295baee8177f2ee742e3c36366ea59a0d75c6173a624bad225b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54ab05370b47295baee8177f2ee742e3c36366ea59a0d75c6173a624bad225b0", kill_on_drop: false }`
[INFO] [stdout] 54ab05370b47295baee8177f2ee742e3c36366ea59a0d75c6173a624bad225b0
