[INFO] cloning repository https://github.com/Padrition/serde_writing
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Padrition/serde_writing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPadrition%2Fserde_writing", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPadrition%2Fserde_writing'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cb886cd5b68c0bf23600ccffd824eb8b7e47a50d
[INFO] testing Padrition/serde_writing against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPadrition%2Fserde_writing" "/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/Padrition/serde_writing on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Padrition/serde_writing
[INFO] finished tweaking git repo https://github.com/Padrition/serde_writing
[INFO] tweaked toml for git repo https://github.com/Padrition/serde_writing written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Padrition/serde_writing already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_cbor v0.8.2
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e049df01574005c7730b192baeea9607a8aa6e22520a4d3c60ca2a58932bdd2b
[INFO] running `Command { std: "docker" "start" "-a" "e049df01574005c7730b192baeea9607a8aa6e22520a4d3c60ca2a58932bdd2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e049df01574005c7730b192baeea9607a8aa6e22520a4d3c60ca2a58932bdd2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e049df01574005c7730b192baeea9607a8aa6e22520a4d3c60ca2a58932bdd2b", kill_on_drop: false }`
[INFO] [stdout] e049df01574005c7730b192baeea9607a8aa6e22520a4d3c60ca2a58932bdd2b
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f8e225b6113f25416115ac8cda523dac8b17789e424c48e7d617a7bf988ca16
[INFO] running `Command { std: "docker" "start" "-a" "2f8e225b6113f25416115ac8cda523dac8b17789e424c48e7d617a7bf988ca16", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling serde_cbor v0.8.2
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling serde_writing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.72s
[INFO] running `Command { std: "docker" "inspect" "2f8e225b6113f25416115ac8cda523dac8b17789e424c48e7d617a7bf988ca16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f8e225b6113f25416115ac8cda523dac8b17789e424c48e7d617a7bf988ca16", kill_on_drop: false }`
[INFO] [stdout] 2f8e225b6113f25416115ac8cda523dac8b17789e424c48e7d617a7bf988ca16
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87d8220cc309622aea115687545bd2aa8e0feae054a488f16815d266b88150ef
[INFO] running `Command { std: "docker" "start" "-a" "87d8220cc309622aea115687545bd2aa8e0feae054a488f16815d266b88150ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_writing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "87d8220cc309622aea115687545bd2aa8e0feae054a488f16815d266b88150ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87d8220cc309622aea115687545bd2aa8e0feae054a488f16815d266b88150ef", kill_on_drop: false }`
[INFO] [stdout] 87d8220cc309622aea115687545bd2aa8e0feae054a488f16815d266b88150ef
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e058b34dfb04509b3f83a9d62827536ac89d7cc881e9f4d7f0ca81fc0b7b07bc
[INFO] running `Command { std: "docker" "start" "-a" "e058b34dfb04509b3f83a9d62827536ac89d7cc881e9f4d7f0ca81fc0b7b07bc", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/serde_writing-f3860a1ef2b76e74)
[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" "e058b34dfb04509b3f83a9d62827536ac89d7cc881e9f4d7f0ca81fc0b7b07bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e058b34dfb04509b3f83a9d62827536ac89d7cc881e9f4d7f0ca81fc0b7b07bc", kill_on_drop: false }`
[INFO] [stdout] e058b34dfb04509b3f83a9d62827536ac89d7cc881e9f4d7f0ca81fc0b7b07bc