[INFO] cloning repository https://github.com/yuhangwang/copy_files-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yuhangwang/copy_files-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuhangwang%2Fcopy_files-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuhangwang%2Fcopy_files-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 28fc7a1e5d719ded63b50fc519cc32df2d7e447e
[INFO] testing yuhangwang/copy_files-rs against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuhangwang%2Fcopy_files-rs" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yuhangwang/copy_files-rs on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yuhangwang/copy_files-rs
[INFO] finished tweaking git repo https://github.com/yuhangwang/copy_files-rs
[INFO] tweaked toml for git repo https://github.com/yuhangwang/copy_files-rs written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/yuhangwang/copy_files-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "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] ee0c9917a5f2f72362b82db067844f5e1cf3813c62408c89af25a45b6af94929
[INFO] running `Command { std: "docker" "start" "-a" "ee0c9917a5f2f72362b82db067844f5e1cf3813c62408c89af25a45b6af94929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee0c9917a5f2f72362b82db067844f5e1cf3813c62408c89af25a45b6af94929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee0c9917a5f2f72362b82db067844f5e1cf3813c62408c89af25a45b6af94929", kill_on_drop: false }`
[INFO] [stdout] ee0c9917a5f2f72362b82db067844f5e1cf3813c62408c89af25a45b6af94929
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51a8412dd52b1e043233f3a2b53b773db1222628f48906f51d6fa9791ebb2d73
[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" "51a8412dd52b1e043233f3a2b53b773db1222628f48906f51d6fa9791ebb2d73", kill_on_drop: false }`
[INFO] [stderr]    Compiling copy_files v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `serde_json`
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate serde_json;
[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 `copy_files` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "51a8412dd52b1e043233f3a2b53b773db1222628f48906f51d6fa9791ebb2d73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51a8412dd52b1e043233f3a2b53b773db1222628f48906f51d6fa9791ebb2d73", kill_on_drop: false }`
[INFO] [stdout] 51a8412dd52b1e043233f3a2b53b773db1222628f48906f51d6fa9791ebb2d73
