[INFO] cloning repository https://github.com/pwarren/rtl-entropy-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pwarren/rtl-entropy-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpwarren%2Frtl-entropy-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpwarren%2Frtl-entropy-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9f6c10ce7dd7fa07e059e80190287a15bc704d09
[INFO] checking pwarren/rtl-entropy-rs against try#55b3f428b4fac6790b1e8492e0b91ff2d80aec7c for pr-77035
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpwarren%2Frtl-entropy-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/pwarren/rtl-entropy-rs on toolchain 55b3f428b4fac6790b1e8492e0b91ff2d80aec7c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pwarren/rtl-entropy-rs
[INFO] finished tweaking git repo https://github.com/pwarren/rtl-entropy-rs
[INFO] tweaked toml for git repo https://github.com/pwarren/rtl-entropy-rs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/pwarren/rtl-entropy-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "fetch" "--locked" "--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-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa064778116f4db8149f1ab1629e240bbb971a3f07d813b05aa839cce5de6548
[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" "aa064778116f4db8149f1ab1629e240bbb971a3f07d813b05aa839cce5de6548", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa064778116f4db8149f1ab1629e240bbb971a3f07d813b05aa839cce5de6548", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa064778116f4db8149f1ab1629e240bbb971a3f07d813b05aa839cce5de6548", kill_on_drop: false }`
[INFO] [stdout] aa064778116f4db8149f1ab1629e240bbb971a3f07d813b05aa839cce5de6548
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2dddcc5c1e8f8d7d52851f976d985d5378e34cf9e40944d6434b58c94145364
[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" "a2dddcc5c1e8f8d7d52851f976d985d5378e34cf9e40944d6434b58c94145364", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.26
[INFO] [stderr]     Checking serde v1.0.10
[INFO] [stderr]     Checking bitstream-io v0.6.1
[INFO] [stderr]     Checking argparse v0.2.1
[INFO] [stderr]     Checking rtl-sdr v0.1.5
[INFO] [stderr]    Compiling libsodium-sys v0.0.15
[INFO] [stderr]     Checking sodiumoxide v0.0.15
[INFO] [stderr]     Checking rtl-entropy-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `bit1`
[INFO] [stdout]    --> src/main.rs:226:21
[INFO] [stdout]     |
[INFO] [stdout] 226 |                 let bit1 = match bit1 {
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_bit1`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bit1`
[INFO] [stdout]    --> src/main.rs:231:21
[INFO] [stdout]     |
[INFO] [stdout] 231 |                 let bit1 = match bit1 {
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_bit1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]    --> src/main.rs:391:20
[INFO] [stdout]     |
[INFO] [stdout] 391 |         let (data, count, err) = dev.read_sync(rtlsdr::DEFAULT_BUF_LENGTH);
[INFO] [stdout]     |                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bit1`
[INFO] [stdout]    --> src/main.rs:226:21
[INFO] [stdout]     |
[INFO] [stdout] 226 |                 let bit1 = match bit1 {
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_bit1`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bit1`
[INFO] [stdout]    --> src/main.rs:231:21
[INFO] [stdout]     |
[INFO] [stdout] 231 |                 let bit1 = match bit1 {
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_bit1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]    --> src/main.rs:391:20
[INFO] [stdout]     |
[INFO] [stdout] 391 |         let (data, count, err) = dev.read_sync(rtlsdr::DEFAULT_BUF_LENGTH);
[INFO] [stdout]     |                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.67s
[INFO] running `Command { std: "docker" "inspect" "a2dddcc5c1e8f8d7d52851f976d985d5378e34cf9e40944d6434b58c94145364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2dddcc5c1e8f8d7d52851f976d985d5378e34cf9e40944d6434b58c94145364", kill_on_drop: false }`
[INFO] [stdout] a2dddcc5c1e8f8d7d52851f976d985d5378e34cf9e40944d6434b58c94145364