[INFO] fetching crate muncher 0.7.0...
[INFO] checking muncher-0.7.0 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate muncher 0.7.0 into /workspace/builds/worker-106/source
[INFO] validating manifest of crates.io crate muncher 0.7.0 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate muncher 0.7.0
[INFO] finished tweaking crates.io crate muncher 0.7.0
[INFO] tweaked toml for crates.io crate muncher 0.7.0 written to /workspace/builds/worker-106/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f1e36b49b5625fb30a1d0f6fe042d9dd5b43c314f263036d731c91af7f9853a
[INFO] running `Command { std: "docker" "start" "-a" "0f1e36b49b5625fb30a1d0f6fe042d9dd5b43c314f263036d731c91af7f9853a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f1e36b49b5625fb30a1d0f6fe042d9dd5b43c314f263036d731c91af7f9853a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f1e36b49b5625fb30a1d0f6fe042d9dd5b43c314f263036d731c91af7f9853a", kill_on_drop: false }`
[INFO] [stdout] 0f1e36b49b5625fb30a1d0f6fe042d9dd5b43c314f263036d731c91af7f9853a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a422c07bea9e1fe26836d031d471e1391c5651a12564d8b973fad0e4f4994695
[INFO] running `Command { std: "docker" "start" "-a" "a422c07bea9e1fe26836d031d471e1391c5651a12564d8b973fad0e4f4994695", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking muncher v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `input`
[INFO] [stdout]   --> src/muncher.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     input: &'a str,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pos`
[INFO] [stdout]   --> src/muncher.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pos: (usize, usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `input`
[INFO] [stdout]   --> src/muncher.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     input: &'a str,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pos`
[INFO] [stdout]   --> src/muncher.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pos: (usize, usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "a422c07bea9e1fe26836d031d471e1391c5651a12564d8b973fad0e4f4994695", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a422c07bea9e1fe26836d031d471e1391c5651a12564d8b973fad0e4f4994695", kill_on_drop: false }`
[INFO] [stdout] a422c07bea9e1fe26836d031d471e1391c5651a12564d8b973fad0e4f4994695