[INFO] fetching crate cbit 0.1.0...
[INFO] checking cbit-0.1.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate cbit 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate cbit 0.1.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cbit 0.1.0
[INFO] finished tweaking crates.io crate cbit 0.1.0
[INFO] tweaked toml for crates.io crate cbit 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate cbit 0.1.0 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fd4763dcdce8d92fb129d1fa58380ad1614025314722e4d32e7eb19a80034d2
[INFO] running `Command { std: "docker" "start" "-a" "6fd4763dcdce8d92fb129d1fa58380ad1614025314722e4d32e7eb19a80034d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fd4763dcdce8d92fb129d1fa58380ad1614025314722e4d32e7eb19a80034d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fd4763dcdce8d92fb129d1fa58380ad1614025314722e4d32e7eb19a80034d2", kill_on_drop: false }`
[INFO] [stdout] 6fd4763dcdce8d92fb129d1fa58380ad1614025314722e4d32e7eb19a80034d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e57257d9b5a1fa005b2903fff9d69dbc011f9d48297ac89f26add59164a90b7d
[INFO] running `Command { std: "docker" "start" "-a" "e57257d9b5a1fa005b2903fff9d69dbc011f9d48297ac89f26add59164a90b7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]     Checking quote v1.0.33
[INFO] [stderr]     Checking syn v2.0.39
[INFO] [stderr]     Checking cbit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `kw_for` and `kw_in` are never read
[INFO] [stdout]   --> src/syntax.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct CbitForExpr {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 12 |     pub label: Option<Label>,
[INFO] [stdout] 13 |     pub kw_for: Token![for],
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 14 |     pub body_pattern: Pat,
[INFO] [stdout] 15 |     pub kw_in: Token![in],
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CbitForExpr` has a derived impl for the trait `Clone`, 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: field `kw_break` is never read
[INFO] [stdout]   --> src/syntax.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct CbitForExprBreaks {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 37 |     pub kw_break: Token![break],
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CbitForExprBreaks` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `brace` is never read
[INFO] [stdout]   --> src/syntax.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 86 | pub struct OpaqueBody {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 87 |     pub brace: Brace,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `OpaqueBody` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kw_for` and `kw_in` are never read
[INFO] [stdout]   --> src/syntax.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct CbitForExpr {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 12 |     pub label: Option<Label>,
[INFO] [stdout] 13 |     pub kw_for: Token![for],
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 14 |     pub body_pattern: Pat,
[INFO] [stdout] 15 |     pub kw_in: Token![in],
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CbitForExpr` has a derived impl for the trait `Clone`, 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: field `kw_break` is never read
[INFO] [stdout]   --> src/syntax.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct CbitForExprBreaks {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 37 |     pub kw_break: Token![break],
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CbitForExprBreaks` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `brace` is never read
[INFO] [stdout]   --> src/syntax.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 86 | pub struct OpaqueBody {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 87 |     pub brace: Brace,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `OpaqueBody` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kw_for` and `kw_in` are never read
[INFO] [stdout]   --> src/syntax.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct CbitForExpr {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 12 |     pub label: Option<Label>,
[INFO] [stdout] 13 |     pub kw_for: Token![for],
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 14 |     pub body_pattern: Pat,
[INFO] [stdout] 15 |     pub kw_in: Token![in],
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CbitForExpr` has a derived impl for the trait `Clone`, 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: field `kw_break` is never read
[INFO] [stdout]   --> src/syntax.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct CbitForExprBreaks {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 37 |     pub kw_break: Token![break],
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CbitForExprBreaks` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `brace` is never read
[INFO] [stdout]   --> src/syntax.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 86 | pub struct OpaqueBody {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 87 |     pub brace: Brace,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `OpaqueBody` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.73s
[INFO] running `Command { std: "docker" "inspect" "e57257d9b5a1fa005b2903fff9d69dbc011f9d48297ac89f26add59164a90b7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e57257d9b5a1fa005b2903fff9d69dbc011f9d48297ac89f26add59164a90b7d", kill_on_drop: false }`
[INFO] [stdout] e57257d9b5a1fa005b2903fff9d69dbc011f9d48297ac89f26add59164a90b7d