[INFO] cloning repository https://github.com/sacarro/rust-trend-report
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sacarro/rust-trend-report" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsacarro%2Frust-trend-report", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsacarro%2Frust-trend-report'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d656b5c95f4f1ff10bc436b864f7d87d78899f08
[INFO] testing sacarro/rust-trend-report against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsacarro%2Frust-trend-report" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sacarro/rust-trend-report on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sacarro/rust-trend-report
[INFO] finished tweaking git repo https://github.com/sacarro/rust-trend-report
[INFO] tweaked toml for git repo https://github.com/sacarro/rust-trend-report written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/sacarro/rust-trend-report already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f58e49dcddbf5526b83ab84c3c992f6120f5e732e1000c531252593ff0b5092
[INFO] running `Command { std: "docker" "start" "-a" "8f58e49dcddbf5526b83ab84c3c992f6120f5e732e1000c531252593ff0b5092", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f58e49dcddbf5526b83ab84c3c992f6120f5e732e1000c531252593ff0b5092", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f58e49dcddbf5526b83ab84c3c992f6120f5e732e1000c531252593ff0b5092", kill_on_drop: false }`
[INFO] [stdout] 8f58e49dcddbf5526b83ab84c3c992f6120f5e732e1000c531252593ff0b5092
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c3c257c903fb75edb1a22c5e56b12c1bbbce3a295005689f47934e6ee3a3055
[INFO] running `Command { std: "docker" "start" "-a" "9c3c257c903fb75edb1a22c5e56b12c1bbbce3a295005689f47934e6ee3a3055", kill_on_drop: false }`
[INFO] [stderr]    Compiling run-trender v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `serialize`
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate serialize;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `run-trender` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "9c3c257c903fb75edb1a22c5e56b12c1bbbce3a295005689f47934e6ee3a3055", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c3c257c903fb75edb1a22c5e56b12c1bbbce3a295005689f47934e6ee3a3055", kill_on_drop: false }`
[INFO] [stdout] 9c3c257c903fb75edb1a22c5e56b12c1bbbce3a295005689f47934e6ee3a3055