[INFO] cloning repository https://github.com/utrescu/Rust-Semafors
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/utrescu/Rust-Semafors" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Futrescu%2FRust-Semafors", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Futrescu%2FRust-Semafors'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 86fb95647d6687dabb05d66201fb59d8cf7db000
[INFO] testing utrescu/Rust-Semafors against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Futrescu%2FRust-Semafors" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/utrescu/Rust-Semafors on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/utrescu/Rust-Semafors
[INFO] finished tweaking git repo https://github.com/utrescu/Rust-Semafors
[INFO] tweaked toml for git repo https://github.com/utrescu/Rust-Semafors written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/utrescu/Rust-Semafors already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a2d9fe596e25c85c6ae30bcf5f4cd17c8d3ade35defa27c30b7fabd8eb71341b
[INFO] running `Command { std: "docker" "start" "-a" "a2d9fe596e25c85c6ae30bcf5f4cd17c8d3ade35defa27c30b7fabd8eb71341b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2d9fe596e25c85c6ae30bcf5f4cd17c8d3ade35defa27c30b7fabd8eb71341b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2d9fe596e25c85c6ae30bcf5f4cd17c8d3ade35defa27c30b7fabd8eb71341b", kill_on_drop: false }`
[INFO] [stdout] a2d9fe596e25c85c6ae30bcf5f4cd17c8d3ade35defa27c30b7fabd8eb71341b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9413275ed0d2b6303ed9cdba4ff1d51c714a152af5fa2f0078bf2e95c0761c86
[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" "9413275ed0d2b6303ed9cdba4ff1d51c714a152af5fa2f0078bf2e95c0761c86", kill_on_drop: false }`
[INFO] [stderr]    Compiling semafors v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `Command { std: "docker" "inspect" "9413275ed0d2b6303ed9cdba4ff1d51c714a152af5fa2f0078bf2e95c0761c86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9413275ed0d2b6303ed9cdba4ff1d51c714a152af5fa2f0078bf2e95c0761c86", kill_on_drop: false }`
[INFO] [stdout] 9413275ed0d2b6303ed9cdba4ff1d51c714a152af5fa2f0078bf2e95c0761c86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e5e1cc1344d957375ba55344ab30748de7e785bb0c8c841d06c48452b673f79
[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" "7e5e1cc1344d957375ba55344ab30748de7e785bb0c8c841d06c48452b673f79", kill_on_drop: false }`
[INFO] [stderr]    Compiling semafors v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "7e5e1cc1344d957375ba55344ab30748de7e785bb0c8c841d06c48452b673f79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e5e1cc1344d957375ba55344ab30748de7e785bb0c8c841d06c48452b673f79", kill_on_drop: false }`
[INFO] [stdout] 7e5e1cc1344d957375ba55344ab30748de7e785bb0c8c841d06c48452b673f79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 89473844f12824f693864400fab4c76e2a4d4ece09499d07ddcac2855700fe68
[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" "89473844f12824f693864400fab4c76e2a4d4ece09499d07ddcac2855700fe68", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/semafors-292a9f91fdf36231
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "89473844f12824f693864400fab4c76e2a4d4ece09499d07ddcac2855700fe68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89473844f12824f693864400fab4c76e2a4d4ece09499d07ddcac2855700fe68", kill_on_drop: false }`
[INFO] [stdout] 89473844f12824f693864400fab4c76e2a4d4ece09499d07ddcac2855700fe68