[INFO] cloning repository https://github.com/wadadli/webapp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wadadli/webapp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwadadli%2Fwebapp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwadadli%2Fwebapp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fb78c7f18926e8734621c38863e80b7d52d8660d
[INFO] testing wadadli/webapp against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwadadli%2Fwebapp" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wadadli/webapp on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wadadli/webapp
[INFO] finished tweaking git repo https://github.com/wadadli/webapp
[INFO] tweaked toml for git repo https://github.com/wadadli/webapp written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/wadadli/webapp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71d3eceb198f9ae4483e30ce28d82a7f5cfacb40da9993cb6ed15065966768ad
[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" "71d3eceb198f9ae4483e30ce28d82a7f5cfacb40da9993cb6ed15065966768ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71d3eceb198f9ae4483e30ce28d82a7f5cfacb40da9993cb6ed15065966768ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71d3eceb198f9ae4483e30ce28d82a7f5cfacb40da9993cb6ed15065966768ad", kill_on_drop: false }`
[INFO] [stdout] 71d3eceb198f9ae4483e30ce28d82a7f5cfacb40da9993cb6ed15065966768ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 284817acf93ce491a05e637635968f89de48eb7a2d37a4665e384c788f40538b
[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" "284817acf93ce491a05e637635968f89de48eb7a2d37a4665e384c788f40538b", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]    Compiling byteorder v1.2.4
[INFO] [stderr]    Compiling matches v0.1.7
[INFO] [stderr]    Compiling serde v1.0.71
[INFO] [stderr]    Compiling arrayref v0.3.4
[INFO] [stderr]    Compiling num-bigint v0.2.0
[INFO] [stderr]    Compiling regex v1.0.2
[INFO] [stderr]    Compiling byte-tools v0.2.0
[INFO] [stderr]    Compiling httparse v1.3.2
[INFO] [stderr]    Compiling itoa v0.4.2
[INFO] [stderr]    Compiling bit-vec v0.5.0
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling uuid v0.6.5
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling smallvec v0.6.4
[INFO] [stderr]    Compiling twox-hash v1.1.1
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling block-buffer v0.3.3
[INFO] [stderr]    Compiling atoi v0.2.3
[INFO] [stderr]    Compiling generic-array v0.9.0
[INFO] [stderr]    Compiling aho-corasick v0.6.6
[INFO] [stderr]    Compiling base64 v0.9.2
[INFO] [stderr]    Compiling base64 v0.6.0
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling chrono v0.4.5
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling digest v0.7.5
[INFO] [stderr]    Compiling phf_shared v0.7.22
[INFO] [stderr]    Compiling sha2 v0.7.1
[INFO] [stderr]    Compiling phf_generator v0.7.22
[INFO] [stderr]    Compiling phf v0.7.22
[INFO] [stderr]    Compiling phf_codegen v0.7.22
[INFO] [stderr]    Compiling flate2 v1.0.2
[INFO] [stderr]    Compiling mime_guess v1.8.6
[INFO] [stderr]    Compiling url v1.7.1
[INFO] [stderr]    Compiling hyper v0.10.13
[INFO] [stderr]    Compiling iron v0.6.0
[INFO] [stderr]    Compiling serde_json v1.0.24
[INFO] [stderr]    Compiling mysql_common v0.8.0
[INFO] [stderr]    Compiling mysql v14.0.0
[INFO] [stderr]    Compiling webapp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning[E0705]: the feature `rust_2018_preview` is included in the Rust 2018 edition
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(rust_2018_preview)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(rust_2018_preview)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0705.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `webapp`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "284817acf93ce491a05e637635968f89de48eb7a2d37a4665e384c788f40538b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "284817acf93ce491a05e637635968f89de48eb7a2d37a4665e384c788f40538b", kill_on_drop: false }`
[INFO] [stdout] 284817acf93ce491a05e637635968f89de48eb7a2d37a4665e384c788f40538b
