[INFO] cloning repository https://github.com/jlricon/rust-impl-struct
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jlricon/rust-impl-struct" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjlricon%2Frust-impl-struct", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjlricon%2Frust-impl-struct'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c4468cd7de4563524ff61825717726369359f75
[INFO] checking jlricon/rust-impl-struct against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjlricon%2Frust-impl-struct" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jlricon/rust-impl-struct on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jlricon/rust-impl-struct
[INFO] finished tweaking git repo https://github.com/jlricon/rust-impl-struct
[INFO] tweaked toml for git repo https://github.com/jlricon/rust-impl-struct written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/jlricon/rust-impl-struct already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7292d91a4607e1448bde63e3ea75bece29330af5e7bf0174d6507311d0fb551a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7292d91a4607e1448bde63e3ea75bece29330af5e7bf0174d6507311d0fb551a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7292d91a4607e1448bde63e3ea75bece29330af5e7bf0174d6507311d0fb551a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7292d91a4607e1448bde63e3ea75bece29330af5e7bf0174d6507311d0fb551a", kill_on_drop: false }`
[INFO] [stdout] 7292d91a4607e1448bde63e3ea75bece29330af5e7bf0174d6507311d0fb551a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a261482c35d0b5d417036216573067bd683b150c0278991b9151fb3ebfbe8631
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a261482c35d0b5d417036216573067bd683b150c0278991b9151fb3ebfbe8631", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-impl-struct v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]   --> examples/traits.rs:11:24
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn step_one(&self, d: &mut Data, c: &Config) {}
[INFO] [stdout]    |                        ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> examples/traits.rs:11:38
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn step_one(&self, d: &mut Data, c: &Config) {}
[INFO] [stdout]    |                                      ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]   --> examples/traits.rs:12:24
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn step_two(&self, d: &mut Data, c: &Config) {}
[INFO] [stdout]    |                        ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> examples/traits.rs:12:38
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn step_two(&self, d: &mut Data, c: &Config) {}
[INFO] [stdout]    |                                      ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]   --> examples/traits_1.rs:12:24
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn step_one(&self, d: &mut Data, c: &Config) {}
[INFO] [stdout]    |                        ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> examples/traits_1.rs:12:38
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn step_one(&self, d: &mut Data, c: &Config) {}
[INFO] [stdout]    |                                      ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]   --> examples/traits_1.rs:13:24
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn step_two(&self, d: &mut Data, c: &Config) {}
[INFO] [stdout]    |                        ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> examples/traits_1.rs:13:38
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn step_two(&self, d: &mut Data, c: &Config) {}
[INFO] [stdout]    |                                      ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `Command { std: "docker" "inspect" "a261482c35d0b5d417036216573067bd683b150c0278991b9151fb3ebfbe8631", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a261482c35d0b5d417036216573067bd683b150c0278991b9151fb3ebfbe8631", kill_on_drop: false }`
[INFO] [stdout] a261482c35d0b5d417036216573067bd683b150c0278991b9151fb3ebfbe8631