[INFO] cloning repository https://github.com/gagan405/rs-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gagan405/rs-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgagan405%2Frs-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgagan405%2Frs-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c1b3046d149230cd33e2a642d9210812fb98b8bd
[INFO] checking gagan405/rs-playground against master#fc5af1813307d25a84d633f21e2e53c9376eb547 for pr-144386
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgagan405%2Frs-playground" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/gagan405/rs-playground
[INFO] finished tweaking git repo https://github.com/gagan405/rs-playground
[INFO] tweaked toml for git repo https://github.com/gagan405/rs-playground written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/gagan405/rs-playground on toolchain fc5af1813307d25a84d633f21e2e53c9376eb547
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fc5af1813307d25a84d633f21e2e53c9376eb547" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/gagan405/rs-playground 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" "+fc5af1813307d25a84d633f21e2e53c9376eb547" "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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "+fc5af1813307d25a84d633f21e2e53c9376eb547" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f5918683651e7add5eca1a2c236900484a9ad78867bce06d0539fc3cc413c033
[INFO] running `Command { std: "docker" "start" "-a" "f5918683651e7add5eca1a2c236900484a9ad78867bce06d0539fc3cc413c033", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5918683651e7add5eca1a2c236900484a9ad78867bce06d0539fc3cc413c033", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5918683651e7add5eca1a2c236900484a9ad78867bce06d0539fc3cc413c033", kill_on_drop: false }`
[INFO] [stdout] f5918683651e7add5eca1a2c236900484a9ad78867bce06d0539fc3cc413c033
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "+fc5af1813307d25a84d633f21e2e53c9376eb547" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3487d41f12b8dd569546e303a66419e9487332c7627cd9ef6011e001c226b61c
[INFO] running `Command { std: "docker" "start" "-a" "3487d41f12b8dd569546e303a66419e9487332c7627cd9ef6011e001c226b61c", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]     Checking rs-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking lc v0.1.0 (/opt/rustwide/workdir/lc)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> lc/src/lib.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |         if (left != right) {
[INFO] [stdout]    |            ^             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 32 -         if (left != right) {
[INFO] [stdout] 32 +         if left != right {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> lc/src/lib.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |         if (left != right) {
[INFO] [stdout]    |            ^             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 32 -         if (left != right) {
[INFO] [stdout] 32 +         if left != right {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> lc/src/lib.rs:72:4
[INFO] [stdout]    |
[INFO] [stdout] 72 | fn main() {}
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stdout] error: failed to write to `/opt/rustwide/target/debug/deps/rmetaP75H6t/full.rmeta`: No space left on device (os error 28)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `num-traits` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "3487d41f12b8dd569546e303a66419e9487332c7627cd9ef6011e001c226b61c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3487d41f12b8dd569546e303a66419e9487332c7627cd9ef6011e001c226b61c", kill_on_drop: false }`
[INFO] [stdout] 3487d41f12b8dd569546e303a66419e9487332c7627cd9ef6011e001c226b61c