[INFO] fetching crate kay 0.5.1...
[INFO] checking kay-0.5.1 against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] extracting crate kay 0.5.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate kay 0.5.1 on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kay 0.5.1
[INFO] finished tweaking crates.io crate kay 0.5.1
[INFO] tweaked toml for crates.io crate kay 0.5.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hamming v0.1.3
[INFO] [stderr]   Downloaded primal-check v0.2.3
[INFO] [stderr]   Downloaded primal-bit v0.2.4
[INFO] [stderr]   Downloaded compact v0.2.16
[INFO] [stderr]   Downloaded sha1 v0.4.0
[INFO] [stderr]   Downloaded tungstenite v0.5.4
[INFO] [stderr]   Downloaded compact_macros v0.1.0
[INFO] [stderr]   Downloaded primal v0.2.3
[INFO] [stderr]   Downloaded primal-estimate v0.2.1
[INFO] [stderr]   Downloaded primal-sieve v0.2.9
[INFO] [stderr]   Downloaded input_buffer v0.1.1
[INFO] [stderr]   Downloaded chunky v0.3.7
[INFO] [stderr]   Downloaded simple_allocator_trait v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98bf0d4b015e0f5bc6e80a1acb7e03ce36324243331cc5711741c2a66ee833f6
[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" "98bf0d4b015e0f5bc6e80a1acb7e03ce36324243331cc5711741c2a66ee833f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98bf0d4b015e0f5bc6e80a1acb7e03ce36324243331cc5711741c2a66ee833f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98bf0d4b015e0f5bc6e80a1acb7e03ce36324243331cc5711741c2a66ee833f6", kill_on_drop: false }`
[INFO] [stdout] 98bf0d4b015e0f5bc6e80a1acb7e03ce36324243331cc5711741c2a66ee833f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8432107e2055898f367a41e96298acf2861f414d0a49b0f65453717a2a32e90e
[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" "8432107e2055898f367a41e96298acf2861f414d0a49b0f65453717a2a32e90e", kill_on_drop: false }`
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking hamming v0.1.3
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking primal-estimate v0.2.1
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking simple_allocator_trait v0.1.0
[INFO] [stderr]     Checking sha1 v0.4.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking chunky v0.3.7
[INFO] [stderr]     Checking primal-bit v0.2.4
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stdout] error[E0635]: unknown feature `vec_resize_default`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/chunky-0.3.7/src/lib.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(vec_resize_default)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[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 E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chunky`
[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" "8432107e2055898f367a41e96298acf2861f414d0a49b0f65453717a2a32e90e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8432107e2055898f367a41e96298acf2861f414d0a49b0f65453717a2a32e90e", kill_on_drop: false }`
[INFO] [stdout] 8432107e2055898f367a41e96298acf2861f414d0a49b0f65453717a2a32e90e