[INFO] cloning repository https://github.com/jculverhouse/fibonacci_race [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jculverhouse/fibonacci_race" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjculverhouse%2Ffibonacci_race", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjculverhouse%2Ffibonacci_race'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 67267e7289d85a30189ff9bc78f3f738863b8084 [INFO] checking jculverhouse/fibonacci_race against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjculverhouse%2Ffibonacci_race" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jculverhouse/fibonacci_race on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jculverhouse/fibonacci_race [INFO] finished tweaking git repo https://github.com/jculverhouse/fibonacci_race [INFO] tweaked toml for git repo https://github.com/jculverhouse/fibonacci_race written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/jculverhouse/fibonacci_race already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded async-attributes v1.1.1 [INFO] [stderr] Downloaded concurrent-queue v1.1.1 [INFO] [stderr] Downloaded event-listener v2.2.0 [INFO] [stderr] Downloaded parking v1.0.5 [INFO] [stderr] Downloaded futures-lite v0.1.8 [INFO] [stderr] Downloaded cached v0.16.0 [INFO] [stderr] Downloaded cached_proc_macro v0.1.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7a6e9cc2f161e728cdeccdf43a89412e53a84abf525de66659d80e53fda0e194 [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" "7a6e9cc2f161e728cdeccdf43a89412e53a84abf525de66659d80e53fda0e194", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7a6e9cc2f161e728cdeccdf43a89412e53a84abf525de66659d80e53fda0e194", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7a6e9cc2f161e728cdeccdf43a89412e53a84abf525de66659d80e53fda0e194", kill_on_drop: false }` [INFO] [stdout] 7a6e9cc2f161e728cdeccdf43a89412e53a84abf525de66659d80e53fda0e194 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c3a9c47a72868f241aeac8f055f68c9a0cc5183b2eb9173a2383286af68e32cb [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" "c3a9c47a72868f241aeac8f055f68c9a0cc5183b2eb9173a2383286af68e32cb", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.19 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.35 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling libc v0.2.73 [INFO] [stderr] Compiling pin-project-internal v0.4.22 [INFO] [stderr] Compiling futures-core v0.3.5 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling once_cell v1.4.0 [INFO] [stderr] Compiling futures-io v0.3.5 [INFO] [stderr] Compiling cache-padded v1.1.1 [INFO] [stderr] Compiling waker-fn v1.0.0 [INFO] [stderr] Compiling event-listener v2.2.0 [INFO] [stderr] Compiling fastrand v1.3.3 [INFO] [stderr] Compiling pin-project-lite v0.1.7 [INFO] [stderr] Compiling parking v1.0.5 [INFO] [stderr] Compiling pin-utils v0.1.0 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling atomic-waker v1.0.0 [INFO] [stderr] Compiling scoped-tls v1.0.0 [INFO] [stderr] Compiling async-task v3.0.0 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling concurrent-queue v1.1.1 [INFO] [stderr] Compiling futures-task v0.3.5 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Checking async-channel v1.1.1 [INFO] [stderr] Compiling kv-log-macro v1.0.7 [INFO] [stderr] Checking futures-lite v0.1.8 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking blocking v0.4.7 [INFO] [stderr] Checking socket2 v0.3.12 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Compiling darling_core v0.10.2 [INFO] [stderr] Compiling async-attributes v1.1.1 [INFO] [stderr] Compiling darling_macro v0.10.2 [INFO] [stderr] Compiling darling v0.10.2 [INFO] [stderr] Compiling pin-project v0.4.22 [INFO] [stderr] Compiling futures-util v0.3.5 [INFO] [stderr] Checking smol v0.1.18 [INFO] [stderr] Checking async-std v1.6.2 [INFO] [stderr] Compiling cached_proc_macro v0.1.2 [INFO] [stderr] Checking cached v0.16.0 [INFO] [stderr] Checking fibonacci_race v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 17s [INFO] running `Command { std: "docker" "inspect" "c3a9c47a72868f241aeac8f055f68c9a0cc5183b2eb9173a2383286af68e32cb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c3a9c47a72868f241aeac8f055f68c9a0cc5183b2eb9173a2383286af68e32cb", kill_on_drop: false }` [INFO] [stdout] c3a9c47a72868f241aeac8f055f68c9a0cc5183b2eb9173a2383286af68e32cb