[INFO] cloning repository https://github.com/dgrayling/rustchanneltesting [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dgrayling/rustchanneltesting" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdgrayling%2Frustchanneltesting", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdgrayling%2Frustchanneltesting'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8806062c30815f180ade3acdaac203eb51845838 [INFO] checking dgrayling/rustchanneltesting against try#5de9e0e6cf775e94e0de2003f35e183f3f77bfe8 for pr-143808 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdgrayling%2Frustchanneltesting" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/dgrayling/rustchanneltesting [INFO] finished tweaking git repo https://github.com/dgrayling/rustchanneltesting [INFO] tweaked toml for git repo https://github.com/dgrayling/rustchanneltesting written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/dgrayling/rustchanneltesting on toolchain 5de9e0e6cf775e94e0de2003f35e183f3f77bfe8 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/dgrayling/rustchanneltesting 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" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5b337bfb376731d75107b2e4d84a03f220a3f7d9d68bd341de90a96a79451ac6 [INFO] running `Command { std: "docker" "start" "-a" "5b337bfb376731d75107b2e4d84a03f220a3f7d9d68bd341de90a96a79451ac6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5b337bfb376731d75107b2e4d84a03f220a3f7d9d68bd341de90a96a79451ac6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5b337bfb376731d75107b2e4d84a03f220a3f7d9d68bd341de90a96a79451ac6", kill_on_drop: false }` [INFO] [stdout] 5b337bfb376731d75107b2e4d84a03f220a3f7d9d68bd341de90a96a79451ac6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4ec9082a71b37ece287791d19e99f362e8b9d762adc1127bab28c7ab46d2d134 [INFO] running `Command { std: "docker" "start" "-a" "4ec9082a71b37ece287791d19e99f362e8b9d762adc1127bab28c7ab46d2d134", kill_on_drop: false }` [INFO] [stderr] Checking channel-experiment v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:36:15 [INFO] [stdout] | [INFO] [stdout] 36 | let (tx1, mut thing1) = getThing(); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:37:15 [INFO] [stdout] | [INFO] [stdout] 37 | let (tx2, mut thing2) = getThing(); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `getThing` should have a snake case name [INFO] [stdout] --> src/main.rs:10:4 [INFO] [stdout] | [INFO] [stdout] 10 | fn getThing() -> (Sender,std::boxed::Box) { [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `get_thing` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `boxedThing` should have a snake case name [INFO] [stdout] --> src/main.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let boxedThing = Box::new(thing); [INFO] [stdout] | ^^^^^^^^^^ help: convert the identifier to snake case: `boxed_thing` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `startThingThread` should have a snake case name [INFO] [stdout] --> src/main.rs:23:4 [INFO] [stdout] | [INFO] [stdout] 23 | fn startThingThread(mut thing: Box) -> std::thread::JoinHandle<()> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `start_thing_thread` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:36:15 [INFO] [stdout] | [INFO] [stdout] 36 | let (tx1, mut thing1) = getThing(); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:37:15 [INFO] [stdout] | [INFO] [stdout] 37 | let (tx2, mut thing2) = getThing(); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `getThing` should have a snake case name [INFO] [stdout] --> src/main.rs:10:4 [INFO] [stdout] | [INFO] [stdout] 10 | fn getThing() -> (Sender,std::boxed::Box) { [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `get_thing` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `boxedThing` should have a snake case name [INFO] [stdout] --> src/main.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let boxedThing = Box::new(thing); [INFO] [stdout] | ^^^^^^^^^^ help: convert the identifier to snake case: `boxed_thing` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `startThingThread` should have a snake case name [INFO] [stdout] --> src/main.rs:23:4 [INFO] [stdout] | [INFO] [stdout] 23 | fn startThingThread(mut thing: Box) -> std::thread::JoinHandle<()> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `start_thing_thread` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.05s [INFO] running `Command { std: "docker" "inspect" "4ec9082a71b37ece287791d19e99f362e8b9d762adc1127bab28c7ab46d2d134", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4ec9082a71b37ece287791d19e99f362e8b9d762adc1127bab28c7ab46d2d134", kill_on_drop: false }` [INFO] [stdout] 4ec9082a71b37ece287791d19e99f362e8b9d762adc1127bab28c7ab46d2d134