[INFO] cloning repository https://github.com/suxiaoshao/compiler-lab
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/suxiaoshao/compiler-lab" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuxiaoshao%2Fcompiler-lab", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuxiaoshao%2Fcompiler-lab'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6b27ebd4fc261cedd0b51816668ce8569f5a076a
[INFO] checking suxiaoshao/compiler-lab against master#c5fbcd35a8217a17f6b63a22217ace06cf8f5f02 for pr-86194
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuxiaoshao%2Fcompiler-lab" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/suxiaoshao/compiler-lab on toolchain c5fbcd35a8217a17f6b63a22217ace06cf8f5f02
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/suxiaoshao/compiler-lab
[INFO] finished tweaking git repo https://github.com/suxiaoshao/compiler-lab
[INFO] tweaked toml for git repo https://github.com/suxiaoshao/compiler-lab written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/suxiaoshao/compiler-lab already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] deca4233a001ba870440750c806a15e034b1614434120c496ce94b9a9b9f70da
[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" "deca4233a001ba870440750c806a15e034b1614434120c496ce94b9a9b9f70da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "deca4233a001ba870440750c806a15e034b1614434120c496ce94b9a9b9f70da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "deca4233a001ba870440750c806a15e034b1614434120c496ce94b9a9b9f70da", kill_on_drop: false }`
[INFO] [stdout] deca4233a001ba870440750c806a15e034b1614434120c496ce94b9a9b9f70da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7ea3a1d56ca380be9182f4dadf158a0b20a971fd7638758c543d6dabd1062538
[INFO] running `Command { std: "docker" "start" "-a" "7ea3a1d56ca380be9182f4dadf158a0b20a971fd7638758c543d6dabd1062538", kill_on_drop: false }`
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking serde v1.0.126
[INFO] [stderr]     Checking compiler-lab v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `r_index`
[INFO] [stdout]   --> src/translator.rs:13:32
[INFO] [stdout]    |
[INFO] [stdout] 13 |             ParserType::Reduce(r_index) => {}
[INFO] [stdout]    |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_r_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r_index`
[INFO] [stdout]   --> src/translator.rs:13:32
[INFO] [stdout]    |
[INFO] [stdout] 13 |             ParserType::Reduce(r_index) => {}
[INFO] [stdout]    |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_r_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Attribute`
[INFO] [stdout]  --> src/translator/attribute.rs:6:34
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(in crate::translator) struct Attribute {
[INFO] [stdout]   |                                  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `IdentifierValue`
[INFO] [stdout]  --> src/translator/identifier.rs:2:32
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub(in crate::translator) enum IdentifierValue {
[INFO] [stdout]   |                                ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Identifier`
[INFO] [stdout]  --> src/translator/identifier.rs:8:34
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub(in crate::translator) struct Identifier {
[INFO] [stdout]   |                                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Quad`
[INFO] [stdout]  --> src/translator/quad.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Quad {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `SymbolTable`
[INFO] [stdout]   --> src/translator/symbol_table.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct SymbolTable {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Attribute`
[INFO] [stdout]  --> src/translator/attribute.rs:6:34
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(in crate::translator) struct Attribute {
[INFO] [stdout]   |                                  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `IdentifierValue`
[INFO] [stdout]  --> src/translator/identifier.rs:2:32
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub(in crate::translator) enum IdentifierValue {
[INFO] [stdout]   |                                ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Identifier`
[INFO] [stdout]  --> src/translator/identifier.rs:8:34
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub(in crate::translator) struct Identifier {
[INFO] [stdout]   |                                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Quad`
[INFO] [stdout]  --> src/translator/quad.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Quad {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `SymbolTable`
[INFO] [stdout]   --> src/translator/symbol_table.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct SymbolTable {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.18s
[INFO] running `Command { std: "docker" "inspect" "7ea3a1d56ca380be9182f4dadf158a0b20a971fd7638758c543d6dabd1062538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ea3a1d56ca380be9182f4dadf158a0b20a971fd7638758c543d6dabd1062538", kill_on_drop: false }`
[INFO] [stdout] 7ea3a1d56ca380be9182f4dadf158a0b20a971fd7638758c543d6dabd1062538