[INFO] cloning repository https://github.com/RockyTV/bhaskara-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RockyTV/bhaskara-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRockyTV%2Fbhaskara-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRockyTV%2Fbhaskara-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9b691c2b8949e85ffdd41ed9590c5d7e88700c96
[INFO] checking RockyTV/bhaskara-rs against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRockyTV%2Fbhaskara-rs" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RockyTV/bhaskara-rs on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RockyTV/bhaskara-rs
[INFO] finished tweaking git repo https://github.com/RockyTV/bhaskara-rs
[INFO] tweaked toml for git repo https://github.com/RockyTV/bhaskara-rs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/RockyTV/bhaskara-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-2/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f7aa11d7ea0cfe0f0d3d802028cfc855ecf2b48d174fb0fd8d6cabfa5fd2f256
[INFO] running `Command { std: "docker" "start" "-a" "f7aa11d7ea0cfe0f0d3d802028cfc855ecf2b48d174fb0fd8d6cabfa5fd2f256", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7aa11d7ea0cfe0f0d3d802028cfc855ecf2b48d174fb0fd8d6cabfa5fd2f256", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7aa11d7ea0cfe0f0d3d802028cfc855ecf2b48d174fb0fd8d6cabfa5fd2f256", kill_on_drop: false }`
[INFO] [stdout] f7aa11d7ea0cfe0f0d3d802028cfc855ecf2b48d174fb0fd8d6cabfa5fd2f256
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4e7b2c7ea2dd36ce4d2dba548e4490e66417376632a2b8806ea71b995059867
[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" "f4e7b2c7ea2dd36ce4d2dba548e4490e66417376632a2b8806ea71b995059867", kill_on_drop: false }`
[INFO] [stderr]     Checking bhaskara v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `x1` is never read
[INFO] [stdout]   --> src/main.rs:43:10
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let (mut x1, mut x2): (i32, i32) = (0, 0);
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x2` is never read
[INFO] [stdout]   --> src/main.rs:43:18
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let (mut x1, mut x2): (i32, i32) = (0, 0);
[INFO] [stdout]    |                  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x1` is never read
[INFO] [stdout]   --> src/main.rs:43:10
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let (mut x1, mut x2): (i32, i32) = (0, 0);
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x2` is never read
[INFO] [stdout]   --> src/main.rs:43:18
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let (mut x1, mut x2): (i32, i32) = (0, 0);
[INFO] [stdout]    |                  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f4e7b2c7ea2dd36ce4d2dba548e4490e66417376632a2b8806ea71b995059867", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4e7b2c7ea2dd36ce4d2dba548e4490e66417376632a2b8806ea71b995059867", kill_on_drop: false }`
[INFO] [stdout] f4e7b2c7ea2dd36ce4d2dba548e4490e66417376632a2b8806ea71b995059867