[INFO] cloning repository https://github.com/pkwww/vareff
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pkwww/vareff" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpkwww%2Fvareff", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpkwww%2Fvareff'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 49d13801e5c74ba587eca50f6e05b6eeea637cd8
[INFO] checking pkwww/vareff against master#8e37e151835d96d6a7415e93e6876561485a3354 for pr-134218
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpkwww%2Fvareff" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pkwww/vareff on toolchain 8e37e151835d96d6a7415e93e6876561485a3354
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8e37e151835d96d6a7415e93e6876561485a3354" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pkwww/vareff
[INFO] finished tweaking git repo https://github.com/pkwww/vareff
[INFO] tweaked toml for git repo https://github.com/pkwww/vareff written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/pkwww/vareff 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" "+8e37e151835d96d6a7415e93e6876561485a3354" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+8e37e151835d96d6a7415e93e6876561485a3354" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f5c1c8fbbc59c57a42ae38f46b0136194d1bb4d885faf0ee3666f2b504793e66
[INFO] running `Command { std: "docker" "start" "-a" "f5c1c8fbbc59c57a42ae38f46b0136194d1bb4d885faf0ee3666f2b504793e66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5c1c8fbbc59c57a42ae38f46b0136194d1bb4d885faf0ee3666f2b504793e66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5c1c8fbbc59c57a42ae38f46b0136194d1bb4d885faf0ee3666f2b504793e66", kill_on_drop: false }`
[INFO] [stdout] f5c1c8fbbc59c57a42ae38f46b0136194d1bb4d885faf0ee3666f2b504793e66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+8e37e151835d96d6a7415e93e6876561485a3354" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 277e36e92ec342968e1bdaacc9dda0feaffc6ef18e43c0eaa5920a57c5497eb8
[INFO] running `Command { std: "docker" "start" "-a" "277e36e92ec342968e1bdaacc9dda0feaffc6ef18e43c0eaa5920a57c5497eb8", kill_on_drop: false }`
[INFO] [stderr]     Checking vareff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/eval_eff.rs:61:27
[INFO] [stdout]    |
[INFO] [stdout] 61 |             Reader::Query(n, k) => panic!(""),
[INFO] [stdout]    |                           ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/eval_eff.rs:61:27
[INFO] [stdout]    |
[INFO] [stdout] 61 |             Reader::Query(n, k) => panic!(""),
[INFO] [stdout]    |                           ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]   --> src/eval_eff.rs:61:30
[INFO] [stdout]    |
[INFO] [stdout] 61 |             Reader::Query(n, k) => panic!(""),
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]   --> src/eval_eff.rs:61:30
[INFO] [stdout]    |
[INFO] [stdout] 61 |             Reader::Query(n, k) => panic!(""),
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "277e36e92ec342968e1bdaacc9dda0feaffc6ef18e43c0eaa5920a57c5497eb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "277e36e92ec342968e1bdaacc9dda0feaffc6ef18e43c0eaa5920a57c5497eb8", kill_on_drop: false }`
[INFO] [stdout] 277e36e92ec342968e1bdaacc9dda0feaffc6ef18e43c0eaa5920a57c5497eb8