[INFO] fetching crate argfetch 0.1.6...
[INFO] checking argfetch-0.1.6 against master#4847d6a9d07d4be9ba3196f6ad444af2d7bdde72 for pr-134276
[INFO] extracting crate argfetch 0.1.6 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate argfetch 0.1.6 on toolchain 4847d6a9d07d4be9ba3196f6ad444af2d7bdde72
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4847d6a9d07d4be9ba3196f6ad444af2d7bdde72" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate argfetch 0.1.6
[INFO] finished tweaking crates.io crate argfetch 0.1.6
[INFO] tweaked toml for crates.io crate argfetch 0.1.6 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4847d6a9d07d4be9ba3196f6ad444af2d7bdde72" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4847d6a9d07d4be9ba3196f6ad444af2d7bdde72" "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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+4847d6a9d07d4be9ba3196f6ad444af2d7bdde72" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a0f4babae5218ba5efd30c3cfe2ab9d2b68d8ce686de793be0c31dbf77ff0ec5
[INFO] running `Command { std: "docker" "start" "-a" "a0f4babae5218ba5efd30c3cfe2ab9d2b68d8ce686de793be0c31dbf77ff0ec5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a0f4babae5218ba5efd30c3cfe2ab9d2b68d8ce686de793be0c31dbf77ff0ec5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0f4babae5218ba5efd30c3cfe2ab9d2b68d8ce686de793be0c31dbf77ff0ec5", kill_on_drop: false }`
[INFO] [stdout] a0f4babae5218ba5efd30c3cfe2ab9d2b68d8ce686de793be0c31dbf77ff0ec5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+4847d6a9d07d4be9ba3196f6ad444af2d7bdde72" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49ce6bf7b2981e4f2b899bb8e10efa5625b8c19029e3fe0d8ad52f7497a678ab
[INFO] running `Command { std: "docker" "start" "-a" "49ce6bf7b2981e4f2b899bb8e10efa5625b8c19029e3fe0d8ad52f7497a678ab", kill_on_drop: false }`
[INFO] [stderr]     Checking argfetch v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `flag`
[INFO] [stdout]  --> src/lib.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     for flag in &flags_vec {
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_flag`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `flag`
[INFO] [stdout]  --> src/lib.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     for flag in &flags_vec {
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_flag`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "49ce6bf7b2981e4f2b899bb8e10efa5625b8c19029e3fe0d8ad52f7497a678ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49ce6bf7b2981e4f2b899bb8e10efa5625b8c19029e3fe0d8ad52f7497a678ab", kill_on_drop: false }`
[INFO] [stdout] 49ce6bf7b2981e4f2b899bb8e10efa5625b8c19029e3fe0d8ad52f7497a678ab