[INFO] fetching crate tt-num 0.1.0...
[INFO] checking tt-num-0.1.0 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate tt-num 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate tt-num 0.1.0 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 tt-num 0.1.0
[INFO] finished tweaking crates.io crate tt-num 0.1.0
[INFO] tweaked toml for crates.io crate tt-num 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tt-call v1.0.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ececccf7ee41fdae4aaeaa4aba8ce5a5cef4ef98f6f5c9dd2752baded7960627
[INFO] running `Command { std: "docker" "start" "-a" "ececccf7ee41fdae4aaeaa4aba8ce5a5cef4ef98f6f5c9dd2752baded7960627", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ececccf7ee41fdae4aaeaa4aba8ce5a5cef4ef98f6f5c9dd2752baded7960627", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ececccf7ee41fdae4aaeaa4aba8ce5a5cef4ef98f6f5c9dd2752baded7960627", kill_on_drop: false }`
[INFO] [stdout] ececccf7ee41fdae4aaeaa4aba8ce5a5cef4ef98f6f5c9dd2752baded7960627
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b3edcbf65c6f85da5c8406055b50ec67648ff9ba23577ccc17a873ede08d8ef2
[INFO] running `Command { std: "docker" "start" "-a" "b3edcbf65c6f85da5c8406055b50ec67648ff9ba23577ccc17a873ede08d8ef2", kill_on_drop: false }`
[INFO] [stderr]     Checking tt-call v1.0.7
[INFO] [stderr]     Checking tt-num v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `use_extern_macros` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> examples/times.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(use_extern_macros)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "b3edcbf65c6f85da5c8406055b50ec67648ff9ba23577ccc17a873ede08d8ef2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3edcbf65c6f85da5c8406055b50ec67648ff9ba23577ccc17a873ede08d8ef2", kill_on_drop: false }`
[INFO] [stdout] b3edcbf65c6f85da5c8406055b50ec67648ff9ba23577ccc17a873ede08d8ef2