[INFO] fetching crate fay 0.1.7...
[INFO] checking fay-0.1.7 against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393
[INFO] extracting crate fay 0.1.7 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate fay 0.1.7 on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fay 0.1.7
[INFO] finished tweaking crates.io crate fay 0.1.7
[INFO] tweaked toml for crates.io crate fay 0.1.7 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate fay 0.1.7 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" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded miniserde v0.1.27
[INFO] [stderr]   Downloaded unicode-ident v1.0.4
[INFO] [stderr]   Downloaded itoa v1.0.3
[INFO] [stderr]   Downloaded mini-internal v0.1.27
[INFO] [stderr]   Downloaded proc-macro2 v1.0.43
[INFO] [stderr]   Downloaded syn v1.0.100
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed4b5f299a0022fdcd2d61c3772f74e9cf563f20d887c702f5a92203aff72b40
[INFO] running `Command { std: "docker" "start" "-a" "ed4b5f299a0022fdcd2d61c3772f74e9cf563f20d887c702f5a92203aff72b40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed4b5f299a0022fdcd2d61c3772f74e9cf563f20d887c702f5a92203aff72b40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed4b5f299a0022fdcd2d61c3772f74e9cf563f20d887c702f5a92203aff72b40", kill_on_drop: false }`
[INFO] [stdout] ed4b5f299a0022fdcd2d61c3772f74e9cf563f20d887c702f5a92203aff72b40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5993c2b10df6f819bb728032b90b4fac76ddd1cfbe2d4ff19ee801ff040dc926
[INFO] running `Command { std: "docker" "start" "-a" "5993c2b10df6f819bb728032b90b4fac76ddd1cfbe2d4ff19ee801ff040dc926", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling syn v1.0.100
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]    Compiling mini-internal v0.1.27
[INFO] [stderr]     Checking miniserde v0.1.27
[INFO] [stderr]     Checking fay v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `print_command` is never used
[INFO] [stdout]    --> src/main.rs:137:8
[INFO] [stdout]     |
[INFO] [stdout] 50  | impl CommandChild {
[INFO] [stdout]     | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 137 |     fn print_command(&self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_command` is never used
[INFO] [stdout]    --> src/main.rs:137:8
[INFO] [stdout]     |
[INFO] [stdout] 50  | impl CommandChild {
[INFO] [stdout]     | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 137 |     fn print_command(&self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.78s
[INFO] running `Command { std: "docker" "inspect" "5993c2b10df6f819bb728032b90b4fac76ddd1cfbe2d4ff19ee801ff040dc926", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5993c2b10df6f819bb728032b90b4fac76ddd1cfbe2d4ff19ee801ff040dc926", kill_on_drop: false }`
[INFO] [stdout] 5993c2b10df6f819bb728032b90b4fac76ddd1cfbe2d4ff19ee801ff040dc926