[INFO] fetching crate fudiff 0.2.0...
[INFO] checking fudiff-0.2.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate fudiff 0.2.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate fudiff 0.2.0
[INFO] finished tweaking crates.io crate fudiff 0.2.0
[INFO] tweaked toml for crates.io crate fudiff 0.2.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fudiff 0.2.0 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate fudiff 0.2.0 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d19b86cc9b3a4bfcc4318809e28bc2efa58cf302cf496a331c4f1cbd8d67c26f
[INFO] running `Command { std: "docker" "start" "-a" "d19b86cc9b3a4bfcc4318809e28bc2efa58cf302cf496a331c4f1cbd8d67c26f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d19b86cc9b3a4bfcc4318809e28bc2efa58cf302cf496a331c4f1cbd8d67c26f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d19b86cc9b3a4bfcc4318809e28bc2efa58cf302cf496a331c4f1cbd8d67c26f", kill_on_drop: false }`
[INFO] [stdout] d19b86cc9b3a4bfcc4318809e28bc2efa58cf302cf496a331c4f1cbd8d67c26f
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad7cd507925bdd223f3bdf493df83cf08cbb9129bea8bd3e2d6a54c3493d7e4f
[INFO] running `Command { std: "docker" "start" "-a" "ad7cd507925bdd223f3bdf493df83cf08cbb9129bea8bd3e2d6a54c3493d7e4f", kill_on_drop: false }`
[INFO] [stderr]     Checking fudiff v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `old_windows`
[INFO] [stdout]    --> src/tests.rs:452:9
[INFO] [stdout]     |
[INFO] [stdout] 452 |     let old_windows = "line1\r\nline2\r\n";
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_windows`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_windows`
[INFO] [stdout]    --> src/tests.rs:453:9
[INFO] [stdout]     |
[INFO] [stdout] 453 |     let new_windows = "line1\r\nline changed\r\nline2\r\n";
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_windows`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TestCase` is never constructed
[INFO] [stdout]    --> src/tests.rs:140:8
[INFO] [stdout]     |
[INFO] [stdout] 140 | struct TestCase {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "ad7cd507925bdd223f3bdf493df83cf08cbb9129bea8bd3e2d6a54c3493d7e4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad7cd507925bdd223f3bdf493df83cf08cbb9129bea8bd3e2d6a54c3493d7e4f", kill_on_drop: false }`
[INFO] [stdout] ad7cd507925bdd223f3bdf493df83cf08cbb9129bea8bd3e2d6a54c3493d7e4f