[INFO] cloning repository https://github.com/RagibHasin/ruetian-data-expander
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RagibHasin/ruetian-data-expander" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRagibHasin%2Fruetian-data-expander", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRagibHasin%2Fruetian-data-expander'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 180fc948e5d6f18e45966a6d6bb90e21afadb2e3
[INFO] testing RagibHasin/ruetian-data-expander against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRagibHasin%2Fruetian-data-expander" "/workspace/builds/worker-94/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-94/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RagibHasin/ruetian-data-expander on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RagibHasin/ruetian-data-expander
[INFO] finished tweaking git repo https://github.com/RagibHasin/ruetian-data-expander
[INFO] tweaked toml for git repo https://github.com/RagibHasin/ruetian-data-expander written to /workspace/builds/worker-94/source/Cargo.toml
[INFO] crate git repo https://github.com/RagibHasin/ruetian-data-expander already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.private
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/RagibHasin/ruetian-common`
[INFO] [stderr]     Updating git repository `https://github.com/RagibHasin/duration_utils-rs`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded strum v0.17.1
[INFO] [stderr]   Downloaded strum_macros v0.17.1
[INFO] [stderr]   Downloaded yaml-rust v0.4.3
[INFO] [stderr]   Downloaded serde_yaml v0.8.11
[INFO] [stderr]   Downloaded num_enum v0.4.2
[INFO] [stderr]   Downloaded num_enum_derive v0.4.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d5f16dd74e77114db71a54a14c484920c11ca8c325fffd7bd37f4616bf27c7dd
[INFO] running `Command { std: "docker" "start" "-a" "d5f16dd74e77114db71a54a14c484920c11ca8c325fffd7bd37f4616bf27c7dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5f16dd74e77114db71a54a14c484920c11ca8c325fffd7bd37f4616bf27c7dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5f16dd74e77114db71a54a14c484920c11ca8c325fffd7bd37f4616bf27c7dd", kill_on_drop: false }`
[INFO] [stdout] d5f16dd74e77114db71a54a14c484920c11ca8c325fffd7bd37f4616bf27c7dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d08eb3d23560530550174db663ee7d44b3672cdf0026f54120a78632fc69b9f
[INFO] running `Command { std: "docker" "start" "-a" "4d08eb3d23560530550174db663ee7d44b3672cdf0026f54120a78632fc69b9f", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.private
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling regex-syntax v0.6.14
[INFO] [stderr]    Compiling linked-hash-map v0.5.2
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling dtoa v0.4.5
[INFO] [stderr]    Compiling strum v0.17.1
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling yaml-rust v0.4.3
[INFO] [stderr]    Compiling aho-corasick v0.7.9
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling derivative v1.0.3
[INFO] [stderr]    Compiling regex v1.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling strum_macros v0.17.1
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling serde_yaml v0.8.11
[INFO] [stderr]    Compiling duration_utils v0.1.0 (https://github.com/RagibHasin/duration_utils-rs#180369d4)
[INFO] [stderr]    Compiling serde_json v1.0.48
[INFO] [stderr]    Compiling chrono v0.4.10
[INFO] [stderr]    Compiling proc-macro-crate v0.1.4
[INFO] [stderr]    Compiling num_enum_derive v0.4.2
[INFO] [stderr]    Compiling num_enum v0.4.2
[INFO] [stderr]    Compiling ruetian-common v0.1.0 (https://github.com/RagibHasin/ruetian-common#c6a09da8)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/ruetian-common-a6b16a2e8e9b5872/c6a09da/src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(range_is_empty)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/ruetian-common-a6b16a2e8e9b5872/c6a09da/src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(map_first_last)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ruetian-common` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "4d08eb3d23560530550174db663ee7d44b3672cdf0026f54120a78632fc69b9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d08eb3d23560530550174db663ee7d44b3672cdf0026f54120a78632fc69b9f", kill_on_drop: false }`
[INFO] [stdout] 4d08eb3d23560530550174db663ee7d44b3672cdf0026f54120a78632fc69b9f