[INFO] cloning repository https://github.com/ammkrn/nanoda [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ammkrn/nanoda" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fammkrn%2Fnanoda", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fammkrn%2Fnanoda'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 09aa607e4a41b522a09b2fde11895e356fe52826 [INFO] checking ammkrn/nanoda against try#b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8 for pr-78363 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fammkrn%2Fnanoda" "/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/ammkrn/nanoda on toolchain b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ammkrn/nanoda [INFO] finished tweaking git repo https://github.com/ammkrn/nanoda [INFO] tweaked toml for git repo https://github.com/ammkrn/nanoda written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/ammkrn/nanoda already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded hashbrown v0.3.1 [INFO] [stderr] Downloaded stacker v0.1.5 [INFO] [stderr] Downloaded mimallocator v0.1.3 [INFO] [stderr] Downloaded mimalloc-sys v0.1.5 [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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 07f949481acacb4e661f9724c282b751b7346738313f633355dc5925365abc83 [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" "07f949481acacb4e661f9724c282b751b7346738313f633355dc5925365abc83", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "07f949481acacb4e661f9724c282b751b7346738313f633355dc5925365abc83", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "07f949481acacb4e661f9724c282b751b7346738313f633355dc5925365abc83", kill_on_drop: false }` [INFO] [stdout] 07f949481acacb4e661f9724c282b751b7346738313f633355dc5925365abc83 [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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9ec09a3974ae49a5a4f7d42b6651bcc3deb612dec9b8cb20cd94198f271fd367 [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" "9ec09a3974ae49a5a4f7d42b6651bcc3deb612dec9b8cb20cd94198f271fd367", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.62 [INFO] [stderr] Compiling cc v1.0.40 [INFO] [stderr] Compiling bitflags v1.1.0 [INFO] [stderr] Checking cfg-if v0.1.9 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling unicode-segmentation v1.3.0 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Checking unicode-width v0.1.6 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking scopeguard v1.0.0 [INFO] [stderr] Checking smallvec v0.6.10 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Checking hashbrown v0.3.1 [INFO] [stderr] Checking lock_api v0.3.1 [INFO] [stderr] Checking crossbeam-utils v0.6.6 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking parking_lot_core v0.6.2 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking fxhash v0.2.1 [INFO] [stderr] Compiling mimalloc-sys v0.1.5 [INFO] [stderr] Compiling stacker v0.1.5 [INFO] [stderr] Checking parking_lot v0.9.0 [INFO] [stderr] Checking mimallocator v0.1.3 [INFO] [stderr] Compiling structopt-derive v0.2.18 [INFO] [stderr] Checking structopt v0.2.18 [INFO] [stderr] Checking nanoda v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/expr.rs:573:13 [INFO] [stdout] | [INFO] [stdout] 573 | std::mem::replace(self, instd); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/reduction.rs:128:40 [INFO] [stdout] | [INFO] [stdout] 128 | Some(already) => { std::mem::replace(already, e2); }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/pretty/components.rs:222:21 [INFO] [stdout] | [INFO] [stdout] 222 | std::mem::replace(eol, (acc.len() + line_width)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/expr.rs:573:13 [INFO] [stdout] | [INFO] [stdout] 573 | std::mem::replace(self, instd); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/reduction.rs:128:40 [INFO] [stdout] | [INFO] [stdout] 128 | Some(already) => { std::mem::replace(already, e2); }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/pretty/components.rs:222:21 [INFO] [stdout] | [INFO] [stdout] 222 | std::mem::replace(eol, (acc.len() + line_width)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 20.63s [INFO] running `Command { std: "docker" "inspect" "9ec09a3974ae49a5a4f7d42b6651bcc3deb612dec9b8cb20cd94198f271fd367", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9ec09a3974ae49a5a4f7d42b6651bcc3deb612dec9b8cb20cd94198f271fd367", kill_on_drop: false }` [INFO] [stdout] 9ec09a3974ae49a5a4f7d42b6651bcc3deb612dec9b8cb20cd94198f271fd367