[INFO] fetching crate cargo-next 0.1.4...
[INFO] checking cargo-next-0.1.4 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate cargo-next 0.1.4 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate cargo-next 0.1.4 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-next 0.1.4
[INFO] finished tweaking crates.io crate cargo-next 0.1.4
[INFO] tweaked toml for crates.io crate cargo-next 0.1.4 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate cargo-next 0.1.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d56e407f827794419d29be54c56c79b274b83233d855f49bb82029147bcc3bb2
[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" "d56e407f827794419d29be54c56c79b274b83233d855f49bb82029147bcc3bb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d56e407f827794419d29be54c56c79b274b83233d855f49bb82029147bcc3bb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d56e407f827794419d29be54c56c79b274b83233d855f49bb82029147bcc3bb2", kill_on_drop: false }`
[INFO] [stdout] d56e407f827794419d29be54c56c79b274b83233d855f49bb82029147bcc3bb2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14515bfca5fe8582f4e161385e59ea8d7fdb03a92291134b6a23021bcc9dd44b
[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" "14515bfca5fe8582f4e161385e59ea8d7fdb03a92291134b6a23021bcc9dd44b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking pico-args v0.3.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking toml_edit v0.2.0
[INFO] [stderr]     Checking cargo-next v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.11s
[INFO] running `Command { std: "docker" "inspect" "14515bfca5fe8582f4e161385e59ea8d7fdb03a92291134b6a23021bcc9dd44b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14515bfca5fe8582f4e161385e59ea8d7fdb03a92291134b6a23021bcc9dd44b", kill_on_drop: false }`
[INFO] [stdout] 14515bfca5fe8582f4e161385e59ea8d7fdb03a92291134b6a23021bcc9dd44b