[INFO] fetching crate srcfiles 0.1.0...
[INFO] checking srcfiles-0.1.0 against master#a3f76a26e045a760bb1163b7eab36872985242d5 for pr-130930
[INFO] extracting crate srcfiles 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate srcfiles 0.1.0 on toolchain a3f76a26e045a760bb1163b7eab36872985242d5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate srcfiles 0.1.0
[INFO] finished tweaking crates.io crate srcfiles 0.1.0
[INFO] tweaked toml for crates.io crate srcfiles 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate srcfiles 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" "+a3f76a26e045a760bb1163b7eab36872985242d5" "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-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 43c6c97dc1ab822d9b7e697eb5dccf4294ef01ddf4389ce7d0e14f7af87d601b
[INFO] running `Command { std: "docker" "start" "-a" "43c6c97dc1ab822d9b7e697eb5dccf4294ef01ddf4389ce7d0e14f7af87d601b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43c6c97dc1ab822d9b7e697eb5dccf4294ef01ddf4389ce7d0e14f7af87d601b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43c6c97dc1ab822d9b7e697eb5dccf4294ef01ddf4389ce7d0e14f7af87d601b", kill_on_drop: false }`
[INFO] [stdout] 43c6c97dc1ab822d9b7e697eb5dccf4294ef01ddf4389ce7d0e14f7af87d601b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1867c5e806a022f478da5311dde8ca275dfce34776a65e82db1aaf267d5af5c4
[INFO] running `Command { std: "docker" "start" "-a" "1867c5e806a022f478da5311dde8ca275dfce34776a65e82db1aaf267d5af5c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]     Checking quote v1.0.10
[INFO] [stderr]     Checking srcfiles v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `if_token` and `cfg_attr` are never read
[INFO] [stdout]   --> src/visitor/cfg_if.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct CfgIf {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 15 |     pub if_token: If,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 16 |     pub cfg_attr: Attribute,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CfgIf` 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `if_token` and `cfg_attr` are never read
[INFO] [stdout]   --> src/visitor/cfg_if.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct CfgIf {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 15 |     pub if_token: If,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 16 |     pub cfg_attr: Attribute,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CfgIf` 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.69s
[INFO] running `Command { std: "docker" "inspect" "1867c5e806a022f478da5311dde8ca275dfce34776a65e82db1aaf267d5af5c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1867c5e806a022f478da5311dde8ca275dfce34776a65e82db1aaf267d5af5c4", kill_on_drop: false }`
[INFO] [stdout] 1867c5e806a022f478da5311dde8ca275dfce34776a65e82db1aaf267d5af5c4