[INFO] fetching crate variants 0.3.0...
[INFO] checking variants-0.3.0 against try#9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c for pr-79472
[INFO] extracting crate variants 0.3.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate variants 0.3.0 on toolchain 9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate variants 0.3.0
[INFO] finished tweaking crates.io crate variants 0.3.0
[INFO] tweaked toml for crates.io crate variants 0.3.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b5c013ce7a0af68923c8110dffc22764f911ef058967f42f936efda1f0a44cab
[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" "b5c013ce7a0af68923c8110dffc22764f911ef058967f42f936efda1f0a44cab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5c013ce7a0af68923c8110dffc22764f911ef058967f42f936efda1f0a44cab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5c013ce7a0af68923c8110dffc22764f911ef058967f42f936efda1f0a44cab", kill_on_drop: false }`
[INFO] [stdout] b5c013ce7a0af68923c8110dffc22764f911ef058967f42f936efda1f0a44cab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98917ae852d44524d00922c7d51c1948a2432b1e6aa5e23ddead52d4d23e07de
[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" "98917ae852d44524d00922c7d51c1948a2432b1e6aa5e23ddead52d4d23e07de", kill_on_drop: false }`
[INFO] [stderr]     Checking variants v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: cannot find attribute `license` in this scope
[INFO] [stdout]  --> src/lib.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![license = "MIT"]
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `deriving` in this scope
[INFO] [stdout]  --> src/lib.rs:9:3
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[deriving(Show, Clone, PartialEq, PartialOrd, Ord, Eq, Hash, Rand)]
[INFO] [stdout]   |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `deriving` in this scope
[INFO] [stdout]   --> src/lib.rs:16:3
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[deriving(Show, Clone, PartialEq, PartialOrd, Ord, Eq, Hash, Rand)]
[INFO] [stdout]    |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `deriving` in this scope
[INFO] [stdout]   --> src/lib.rs:24:3
[INFO] [stdout]    |
[INFO] [stdout] 24 | #[deriving(Show, Clone, PartialEq, PartialOrd, Ord, Eq, Hash, Rand)]
[INFO] [stdout]    |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `deriving` in this scope
[INFO] [stdout]   --> src/lib.rs:33:3
[INFO] [stdout]    |
[INFO] [stdout] 33 | #[deriving(Show, Clone, PartialEq, PartialOrd, Ord, Eq, Hash, Rand)]
[INFO] [stdout]    |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `deriving` in this scope
[INFO] [stdout]   --> src/lib.rs:43:3
[INFO] [stdout]    |
[INFO] [stdout] 43 | #[deriving(Show, Clone, PartialEq, PartialOrd, Ord, Eq, Hash, Rand)]
[INFO] [stdout]    |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `deriving` in this scope
[INFO] [stdout]   --> src/lib.rs:54:3
[INFO] [stdout]    |
[INFO] [stdout] 54 | #[deriving(Show, Clone, PartialEq, PartialOrd, Ord, Eq, Hash, Rand)]
[INFO] [stdout]    |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `variants`
[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] [stdout] error: cannot find attribute `license` in this scope
[INFO] [stdout]  --> src/lib.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![license = "MIT"]
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `deriving` in this scope
[INFO] [stdout]  --> src/lib.rs:9:3
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[deriving(Show, Clone, PartialEq, PartialOrd, Ord, Eq, Hash, Rand)]
[INFO] [stdout]   |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `deriving` in this scope
[INFO] [stdout]   --> src/lib.rs:16:3
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[deriving(Show, Clone, PartialEq, PartialOrd, Ord, Eq, Hash, Rand)]
[INFO] [stdout]    |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `deriving` in this scope
[INFO] [stdout]   --> src/lib.rs:24:3
[INFO] [stdout]    |
[INFO] [stdout] 24 | #[deriving(Show, Clone, PartialEq, PartialOrd, Ord, Eq, Hash, Rand)]
[INFO] [stdout]    |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `deriving` in this scope
[INFO] [stdout]   --> src/lib.rs:33:3
[INFO] [stdout]    |
[INFO] [stdout] 33 | #[deriving(Show, Clone, PartialEq, PartialOrd, Ord, Eq, Hash, Rand)]
[INFO] [stdout]    |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `deriving` in this scope
[INFO] [stdout]   --> src/lib.rs:43:3
[INFO] [stdout]    |
[INFO] [stdout] 43 | #[deriving(Show, Clone, PartialEq, PartialOrd, Ord, Eq, Hash, Rand)]
[INFO] [stdout]    |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `deriving` in this scope
[INFO] [stdout]   --> src/lib.rs:54:3
[INFO] [stdout]    |
[INFO] [stdout] 54 | #[deriving(Show, Clone, PartialEq, PartialOrd, Ord, Eq, Hash, Rand)]
[INFO] [stdout]    |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "98917ae852d44524d00922c7d51c1948a2432b1e6aa5e23ddead52d4d23e07de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98917ae852d44524d00922c7d51c1948a2432b1e6aa5e23ddead52d4d23e07de", kill_on_drop: false }`
[INFO] [stdout] 98917ae852d44524d00922c7d51c1948a2432b1e6aa5e23ddead52d4d23e07de