[INFO] cloning repository https://github.com/LaurentChion/rust-mdbook-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LaurentChion/rust-mdbook-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLaurentChion%2Frust-mdbook-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLaurentChion%2Frust-mdbook-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 64f026ddbaa7b3e8710bb4e2a0465dead510c6ea
[INFO] testing LaurentChion/rust-mdbook-playground against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLaurentChion%2Frust-mdbook-playground" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LaurentChion/rust-mdbook-playground on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LaurentChion/rust-mdbook-playground
[INFO] finished tweaking git repo https://github.com/LaurentChion/rust-mdbook-playground
[INFO] tweaked toml for git repo https://github.com/LaurentChion/rust-mdbook-playground written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/LaurentChion/rust-mdbook-playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ba426dfca52939af5ed44bba838c0222690b04cea27d8abcc7954ed990dc78bd
[INFO] running `Command { std: "docker" "start" "-a" "ba426dfca52939af5ed44bba838c0222690b04cea27d8abcc7954ed990dc78bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba426dfca52939af5ed44bba838c0222690b04cea27d8abcc7954ed990dc78bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba426dfca52939af5ed44bba838c0222690b04cea27d8abcc7954ed990dc78bd", kill_on_drop: false }`
[INFO] [stdout] ba426dfca52939af5ed44bba838c0222690b04cea27d8abcc7954ed990dc78bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 631a9935272379d5bd609df3ff8e276fbfb17bf1d66f9a85e20bc631aed601c8
[INFO] running `Command { std: "docker" "start" "-a" "631a9935272379d5bd609df3ff8e276fbfb17bf1d66f9a85e20bc631aed601c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rust-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.68s
[INFO] running `Command { std: "docker" "inspect" "631a9935272379d5bd609df3ff8e276fbfb17bf1d66f9a85e20bc631aed601c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "631a9935272379d5bd609df3ff8e276fbfb17bf1d66f9a85e20bc631aed601c8", kill_on_drop: false }`
[INFO] [stdout] 631a9935272379d5bd609df3ff8e276fbfb17bf1d66f9a85e20bc631aed601c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 43bebebd43401b1d3b37d665660d19794c945f26f924e0641ea8d3051aa56314
[INFO] running `Command { std: "docker" "start" "-a" "43bebebd43401b1d3b37d665660d19794c945f26f924e0641ea8d3051aa56314", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "43bebebd43401b1d3b37d665660d19794c945f26f924e0641ea8d3051aa56314", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43bebebd43401b1d3b37d665660d19794c945f26f924e0641ea8d3051aa56314", kill_on_drop: false }`
[INFO] [stdout] 43bebebd43401b1d3b37d665660d19794c945f26f924e0641ea8d3051aa56314
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9056b602512941b223ee786d81eea39a3fbcf8ad709ccd5576c76cb99b219ef8
[INFO] running `Command { std: "docker" "start" "-a" "9056b602512941b223ee786d81eea39a3fbcf8ad709ccd5576c76cb99b219ef8", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_playground-d4ab440d5e92ca0e)
[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" "9056b602512941b223ee786d81eea39a3fbcf8ad709ccd5576c76cb99b219ef8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9056b602512941b223ee786d81eea39a3fbcf8ad709ccd5576c76cb99b219ef8", kill_on_drop: false }`
[INFO] [stdout] 9056b602512941b223ee786d81eea39a3fbcf8ad709ccd5576c76cb99b219ef8