[INFO] cloning repository https://github.com/frbowm/rsgpeq
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/frbowm/rsgpeq" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrbowm%2Frsgpeq", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrbowm%2Frsgpeq'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d581ee07fa0b6af0e0c873825b1556a2656301c7
[INFO] building frbowm/rsgpeq against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrbowm%2Frsgpeq" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/frbowm/rsgpeq on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/frbowm/rsgpeq
[INFO] finished tweaking git repo https://github.com/frbowm/rsgpeq
[INFO] tweaked toml for git repo https://github.com/frbowm/rsgpeq written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/frbowm/rsgpeq 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b1d046b70a8de6faeca9a113d492fcc45a8a221f10a0b73d9991d76f108be7d4
[INFO] running `Command { std: "docker" "start" "-a" "b1d046b70a8de6faeca9a113d492fcc45a8a221f10a0b73d9991d76f108be7d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1d046b70a8de6faeca9a113d492fcc45a8a221f10a0b73d9991d76f108be7d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1d046b70a8de6faeca9a113d492fcc45a8a221f10a0b73d9991d76f108be7d4", kill_on_drop: false }`
[INFO] [stdout] b1d046b70a8de6faeca9a113d492fcc45a8a221f10a0b73d9991d76f108be7d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dtail-expr-drop-order" "-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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2b93b9c9afe4a28511af19d071d0e6c50878de883ce6a005fb6808a739b2ccd
[INFO] running `Command { std: "docker" "start" "-a" "e2b93b9c9afe4a28511af19d071d0e6c50878de883ce6a005fb6808a739b2ccd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling gpeqrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `p_copy` is never read
[INFO] [stdout]   --> src/params.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 3  | pub(crate) struct Params {
[INFO] [stdout]    |                   ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub(crate) p_copy: f64
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Params` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         stdin.read_line(input);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 44 |         let _ = stdin.read_line(input);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.10s
[INFO] running `Command { std: "docker" "inspect" "e2b93b9c9afe4a28511af19d071d0e6c50878de883ce6a005fb6808a739b2ccd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2b93b9c9afe4a28511af19d071d0e6c50878de883ce6a005fb6808a739b2ccd", kill_on_drop: false }`
[INFO] [stdout] e2b93b9c9afe4a28511af19d071d0e6c50878de883ce6a005fb6808a739b2ccd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dtail-expr-drop-order" "-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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e56d85f7107028985097df7f55673c09658b033f08c63311bff89d6f5ae0dc5
[INFO] running `Command { std: "docker" "start" "-a" "4e56d85f7107028985097df7f55673c09658b033f08c63311bff89d6f5ae0dc5", kill_on_drop: false }`
[INFO] [stderr]    Compiling gpeqrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `p_copy` is never read
[INFO] [stdout]   --> src/params.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 3  | pub(crate) struct Params {
[INFO] [stdout]    |                   ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub(crate) p_copy: f64
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Params` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         stdin.read_line(input);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 44 |         let _ = stdin.read_line(input);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "4e56d85f7107028985097df7f55673c09658b033f08c63311bff89d6f5ae0dc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e56d85f7107028985097df7f55673c09658b033f08c63311bff89d6f5ae0dc5", kill_on_drop: false }`
[INFO] [stdout] 4e56d85f7107028985097df7f55673c09658b033f08c63311bff89d6f5ae0dc5