[INFO] cloning repository https://github.com/shaipe/rust-tutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shaipe/rust-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshaipe%2Frust-tutorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshaipe%2Frust-tutorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0420db646e91dc22a2df788f6f503c4df07bab52
[INFO] testing shaipe/rust-tutorial against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshaipe%2Frust-tutorial" "/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/shaipe/rust-tutorial 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/shaipe/rust-tutorial
[INFO] finished tweaking git repo https://github.com/shaipe/rust-tutorial
[INFO] tweaked toml for git repo https://github.com/shaipe/rust-tutorial written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/shaipe/rust-tutorial 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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 96946a965d8892c1b4c6bab234ff7f51976b70f8522d207784c6c79570b9b88b
[INFO] running `Command { std: "docker" "start" "-a" "96946a965d8892c1b4c6bab234ff7f51976b70f8522d207784c6c79570b9b88b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96946a965d8892c1b4c6bab234ff7f51976b70f8522d207784c6c79570b9b88b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96946a965d8892c1b4c6bab234ff7f51976b70f8522d207784c6c79570b9b88b", kill_on_drop: false }`
[INFO] [stdout] 96946a965d8892c1b4c6bab234ff7f51976b70f8522d207784c6c79570b9b88b
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3c528c13e9540c3bfb3cdcfe85f7dbf1315a39b25056eeacda18b1c72e819cf7
[INFO] running `Command { std: "docker" "start" "-a" "3c528c13e9540c3bfb3cdcfe85f7dbf1315a39b25056eeacda18b1c72e819cf7", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling futures-task v0.3.4
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling mustache v0.9.0
[INFO] [stderr]    Compiling serde_json v1.0.51
[INFO] [stderr]    Compiling futures-util v0.3.4
[INFO] [stderr]    Compiling tokio v0.2.17
[INFO] [stderr]    Compiling hyper v0.10.16
[INFO] [stderr]    Compiling regex v1.3.6
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling nickel v0.11.0
[INFO] [stderr]    Compiling h2 v0.2.4
[INFO] [stderr]    Compiling pin-project-internal v0.4.8
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling pin-project v0.4.8
[INFO] [stderr]    Compiling hyper v0.13.4
[INFO] [stderr]    Compiling tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `hyper::header::Location`
[INFO] [stdout]   --> src/main.rs:16:21
[INFO] [stdout]    |
[INFO] [stdout] 16 | use hyper::header::{Location,};
[INFO] [stdout]    |                     ^^^^^^^^ no `Location` in `header`
[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 E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tutorial` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "3c528c13e9540c3bfb3cdcfe85f7dbf1315a39b25056eeacda18b1c72e819cf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c528c13e9540c3bfb3cdcfe85f7dbf1315a39b25056eeacda18b1c72e819cf7", kill_on_drop: false }`
[INFO] [stdout] 3c528c13e9540c3bfb3cdcfe85f7dbf1315a39b25056eeacda18b1c72e819cf7