[INFO] fetching crate difftastic-lib 0.0.2...
[INFO] checking difftastic-lib-0.0.2 against master#e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682 for beta-170-4
[INFO] extracting crate difftastic-lib 0.0.2 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate difftastic-lib 0.0.2 on toolchain e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate difftastic-lib 0.0.2
[INFO] finished tweaking crates.io crate difftastic-lib 0.0.2
[INFO] tweaked toml for crates.io crate difftastic-lib 0.0.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate difftastic-lib 0.0.2 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" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99b1cc9a6cd1e4e65f219d8517c45f2de7c167d7fa864bc0a5cb9ca7dbe4b71d
[INFO] running `Command { std: "docker" "start" "-a" "99b1cc9a6cd1e4e65f219d8517c45f2de7c167d7fa864bc0a5cb9ca7dbe4b71d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99b1cc9a6cd1e4e65f219d8517c45f2de7c167d7fa864bc0a5cb9ca7dbe4b71d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99b1cc9a6cd1e4e65f219d8517c45f2de7c167d7fa864bc0a5cb9ca7dbe4b71d", kill_on_drop: false }`
[INFO] [stdout] 99b1cc9a6cd1e4e65f219d8517c45f2de7c167d7fa864bc0a5cb9ca7dbe4b71d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2fe9c83d288808f3054cb3933abe24fe9c68e75b55d9593d5d19427dd7517a7
[INFO] running `Command { std: "docker" "start" "-a" "d2fe9c83d288808f3054cb3933abe24fe9c68e75b55d9593d5d19427dd7517a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
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[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling rayon-core v1.9.3
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[INFO] [stderr]    Compiling rayon v1.5.3
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[INFO] [stderr]    Compiling tree-sitter v0.20.6
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[INFO] [stderr]    Compiling difftastic-lib v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&Vertex<'_, '_>` instead of cloning the inner type
[INFO] [stdout]   --> src/diff/dijkstra.rs:94:29
[INFO] [stdout]    |
[INFO] [stdout] 94 |         res.push((edge, prev.clone()));
[INFO] [stdout]    |                             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&graph::Vertex<'_, '_>` instead of cloning the inner type
[INFO] [stdout]   --> src/diff/dijkstra.rs:94:29
[INFO] [stdout]    |
[INFO] [stdout] 94 |         res.push((edge, prev.clone()));
[INFO] [stdout]    |                             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.81s
[INFO] running `Command { std: "docker" "inspect" "d2fe9c83d288808f3054cb3933abe24fe9c68e75b55d9593d5d19427dd7517a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2fe9c83d288808f3054cb3933abe24fe9c68e75b55d9593d5d19427dd7517a7", kill_on_drop: false }`
[INFO] [stdout] d2fe9c83d288808f3054cb3933abe24fe9c68e75b55d9593d5d19427dd7517a7
