[INFO] cloning repository https://github.com/Ran4/mtg-cardlisting-detect
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ran4/mtg-cardlisting-detect" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRan4%2Fmtg-cardlisting-detect", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRan4%2Fmtg-cardlisting-detect'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b995bbf512828d69622e3ef581b47eaf770d9f42
[INFO] checking Ran4/mtg-cardlisting-detect against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRan4%2Fmtg-cardlisting-detect" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Ran4/mtg-cardlisting-detect
[INFO] finished tweaking git repo https://github.com/Ran4/mtg-cardlisting-detect
[INFO] tweaked toml for git repo https://github.com/Ran4/mtg-cardlisting-detect written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Ran4/mtg-cardlisting-detect on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Ran4/mtg-cardlisting-detect 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memchr v2.3.2
[INFO] [stderr]   Downloaded aho-corasick v0.7.8
[INFO] [stderr]   Downloaded regex-syntax v0.6.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 75968a2f86dd5983a07c1325c90c95c81bf507754bd8079e1703539c9b3e7089
[INFO] running `Command { std: "docker" "start" "-a" "75968a2f86dd5983a07c1325c90c95c81bf507754bd8079e1703539c9b3e7089", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75968a2f86dd5983a07c1325c90c95c81bf507754bd8079e1703539c9b3e7089", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75968a2f86dd5983a07c1325c90c95c81bf507754bd8079e1703539c9b3e7089", kill_on_drop: false }`
[INFO] [stdout] 75968a2f86dd5983a07c1325c90c95c81bf507754bd8079e1703539c9b3e7089
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d9730710ed4f849d979e1db4b701f86da316aca1c06f0dbffb1524dda9616da
[INFO] running `Command { std: "docker" "start" "-a" "4d9730710ed4f849d979e1db4b701f86da316aca1c06f0dbffb1524dda9616da", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.2
[INFO] [stderr]     Checking regex-syntax v0.6.14
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.8
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking mdiff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&usize` instead of cloning the inner type
[INFO] [stdout]   --> src/main.rs:46:53
[INFO] [stdout]    |
[INFO] [stdout] 46 |                 .max_by_key(|(_format, count)| count.clone())
[INFO] [stdout]    |                                                     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&usize` instead of cloning the inner type
[INFO] [stdout]   --> src/main.rs:46:53
[INFO] [stdout]    |
[INFO] [stdout] 46 |                 .max_by_key(|(_format, count)| count.clone())
[INFO] [stdout]    |                                                     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.87s
[INFO] running `Command { std: "docker" "inspect" "4d9730710ed4f849d979e1db4b701f86da316aca1c06f0dbffb1524dda9616da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d9730710ed4f849d979e1db4b701f86da316aca1c06f0dbffb1524dda9616da", kill_on_drop: false }`
[INFO] [stdout] 4d9730710ed4f849d979e1db4b701f86da316aca1c06f0dbffb1524dda9616da
