[INFO] updating cached 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" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 86fb95647d6687dabb05d66201fb59d8cf7db000
[INFO] testing utrescu/Rust-Semafors against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Futrescu%2FRust-Semafors" "/workspace/builds/worker-50/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-50/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/utrescu/Rust-Semafors on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-50/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" "+722e1797249a965b6335aebd65d777f917e498f1" "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-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c9e38639a16171e9e7500e9fce1d05f815bc2ed31048cc67657695db26d2718e
[INFO] running `Command { std: "docker" "start" "-a" "c9e38639a16171e9e7500e9fce1d05f815bc2ed31048cc67657695db26d2718e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9e38639a16171e9e7500e9fce1d05f815bc2ed31048cc67657695db26d2718e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9e38639a16171e9e7500e9fce1d05f815bc2ed31048cc67657695db26d2718e", kill_on_drop: false }`
[INFO] [stdout] c9e38639a16171e9e7500e9fce1d05f815bc2ed31048cc67657695db26d2718e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb9b270df59af626b266c3334ea79d0105f5c4c95920b0a7934db14fb019a716
[INFO] running `Command { std: "docker" "start" "-a" "eb9b270df59af626b266c3334ea79d0105f5c4c95920b0a7934db14fb019a716", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling semafors v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 01s
[INFO] running `Command { std: "docker" "inspect" "eb9b270df59af626b266c3334ea79d0105f5c4c95920b0a7934db14fb019a716", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb9b270df59af626b266c3334ea79d0105f5c4c95920b0a7934db14fb019a716", kill_on_drop: false }`
[INFO] [stdout] eb9b270df59af626b266c3334ea79d0105f5c4c95920b0a7934db14fb019a716
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71e960f55784d8ef7822252a80c373433f6a393020382d2e2e1da81bfbb20241
[INFO] running `Command { std: "docker" "start" "-a" "71e960f55784d8ef7822252a80c373433f6a393020382d2e2e1da81bfbb20241", kill_on_drop: false }`
[INFO] [stderr]    Compiling semafors v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.65s
[INFO] running `Command { std: "docker" "inspect" "71e960f55784d8ef7822252a80c373433f6a393020382d2e2e1da81bfbb20241", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71e960f55784d8ef7822252a80c373433f6a393020382d2e2e1da81bfbb20241", kill_on_drop: false }`
[INFO] [stdout] 71e960f55784d8ef7822252a80c373433f6a393020382d2e2e1da81bfbb20241
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b0609b8ab6129639e3fb4ea430de53c0107ac18df22faa3bc62c6b101dfe8dbb
[INFO] running `Command { std: "docker" "start" "-a" "b0609b8ab6129639e3fb4ea430de53c0107ac18df22faa3bc62c6b101dfe8dbb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.77s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/semafors-15ff098a92eef845)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b0609b8ab6129639e3fb4ea430de53c0107ac18df22faa3bc62c6b101dfe8dbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0609b8ab6129639e3fb4ea430de53c0107ac18df22faa3bc62c6b101dfe8dbb", kill_on_drop: false }`
[INFO] [stdout] b0609b8ab6129639e3fb4ea430de53c0107ac18df22faa3bc62c6b101dfe8dbb