[INFO] cloning repository https://github.com/ShoichiroKitano/cc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ShoichiroKitano/cc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShoichiroKitano%2Fcc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShoichiroKitano%2Fcc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 781a9f12e52a76ea2f91003c7a5319a3aa007f0c
[INFO] building ShoichiroKitano/cc against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShoichiroKitano%2Fcc" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ShoichiroKitano/cc on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ShoichiroKitano/cc
[INFO] finished tweaking git repo https://github.com/ShoichiroKitano/cc
[INFO] tweaked toml for git repo https://github.com/ShoichiroKitano/cc written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ShoichiroKitano/cc 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded string-builder v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4df993495cc3fa3402e669ac9b778c07bfd4a413901195bb7c9fefef76c65858
[INFO] running `Command { std: "docker" "start" "-a" "4df993495cc3fa3402e669ac9b778c07bfd4a413901195bb7c9fefef76c65858", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4df993495cc3fa3402e669ac9b778c07bfd4a413901195bb7c9fefef76c65858", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4df993495cc3fa3402e669ac9b778c07bfd4a413901195bb7c9fefef76c65858", kill_on_drop: false }`
[INFO] [stdout] 4df993495cc3fa3402e669ac9b778c07bfd4a413901195bb7c9fefef76c65858
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8bd1ef828a434832b65e1efe2ec98c840873222e2aba96857b63142ca9c79df6
[INFO] running `Command { std: "docker" "start" "-a" "8bd1ef828a434832b65e1efe2ec98c840873222e2aba96857b63142ca9c79df6", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling string-builder v0.2.0
[INFO] [stderr]    Compiling nom v7.1.1
[INFO] [stderr]    Compiling cc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `name`, `return_type`, `argments`, and `body` are never read
[INFO] [stdout]   --> src/ast.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct FunctionDeclaration {
[INFO] [stdout]    |            ------------------- fields in this struct
[INFO] [stdout] 21 |     pub name: Identifier,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 22 |     pub return_type: Identifier,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 23 |     pub argments: Vec<Argment>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 24 |     pub body: Vec<Statement>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FunctionDeclaration` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `mangled_name` is never used
[INFO] [stdout]   --> src/ast.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl FunctionDeclaration {
[INFO] [stdout]    | ------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn mangled_name(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `value_type` and `name` are never read
[INFO] [stdout]    --> src/ast.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub struct Argment {
[INFO] [stdout]     |            ------- fields in this struct
[INFO] [stdout] 103 |     pub value_type: Identifier,
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 104 |     pub name: Identifier,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Argment` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.85s
[INFO] running `Command { std: "docker" "inspect" "8bd1ef828a434832b65e1efe2ec98c840873222e2aba96857b63142ca9c79df6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bd1ef828a434832b65e1efe2ec98c840873222e2aba96857b63142ca9c79df6", kill_on_drop: false }`
[INFO] [stdout] 8bd1ef828a434832b65e1efe2ec98c840873222e2aba96857b63142ca9c79df6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c914255888392727e525bd7e8f61ce8893130e6602d10a5989624c92eabe56fc
[INFO] running `Command { std: "docker" "start" "-a" "c914255888392727e525bd7e8f61ce8893130e6602d10a5989624c92eabe56fc", kill_on_drop: false }`
[INFO] [stdout] warning: fields `name`, `return_type`, `argments`, and `body` are never read
[INFO] [stdout]   --> src/ast.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct FunctionDeclaration {
[INFO] [stdout]    |            ------------------- fields in this struct
[INFO] [stdout] 21 |     pub name: Identifier,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 22 |     pub return_type: Identifier,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 23 |     pub argments: Vec<Argment>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 24 |     pub body: Vec<Statement>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FunctionDeclaration` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `mangled_name` is never used
[INFO] [stdout]   --> src/ast.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl FunctionDeclaration {
[INFO] [stdout]    | ------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn mangled_name(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `value_type` and `name` are never read
[INFO] [stdout]    --> src/ast.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub struct Argment {
[INFO] [stdout]     |            ------- fields in this struct
[INFO] [stdout] 103 |     pub value_type: Identifier,
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 104 |     pub name: Identifier,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Argment` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `return_type`, `argments`, and `body` are never read
[INFO] [stdout]   --> src/ast.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct FunctionDeclaration {
[INFO] [stdout]    |            ------------------- fields in this struct
[INFO] [stdout] 21 |     pub name: Identifier,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 22 |     pub return_type: Identifier,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 23 |     pub argments: Vec<Argment>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 24 |     pub body: Vec<Statement>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FunctionDeclaration` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `mangled_name` is never used
[INFO] [stdout]   --> src/ast.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl FunctionDeclaration {
[INFO] [stdout]    | ------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn mangled_name(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `value_type` and `name` are never read
[INFO] [stdout]    --> src/ast.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub struct Argment {
[INFO] [stdout]     |            ------- fields in this struct
[INFO] [stdout] 103 |     pub value_type: Identifier,
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 104 |     pub name: Identifier,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Argment` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "c914255888392727e525bd7e8f61ce8893130e6602d10a5989624c92eabe56fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c914255888392727e525bd7e8f61ce8893130e6602d10a5989624c92eabe56fc", kill_on_drop: false }`
[INFO] [stdout] c914255888392727e525bd7e8f61ce8893130e6602d10a5989624c92eabe56fc