[INFO] fetching crate chomp 0.3.1...
[INFO] checking chomp-0.3.1 against master#c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3 for pr-141352
[INFO] extracting crate chomp 0.3.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate chomp 0.3.1 on toolchain c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate chomp 0.3.1
[INFO] finished tweaking crates.io crate chomp 0.3.1
[INFO] tweaked toml for crates.io crate chomp 0.3.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `conv`.
[INFO] [stderr]     ... required by package `chomp v0.3.1 (/workspace/builds/worker-6-tc1/source)`
[INFO] [stderr] versions that meet the requirements `^0.3.3` are: 0.3.3
[INFO] [stderr] 
[INFO] [stderr] package `chomp` depends on `conv` with feature `std` but `conv` does not have that feature.
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `conv` which could resolve this conflict


command failed: exit status: 101

    Updating crates.io index
error: failed to select a version for `conv`.
    ... required by package `chomp v0.3.1 (/workspace/builds/worker-6-tc1/source)`
versions that meet the requirements `^0.3.3` are: 0.3.3

package `chomp` depends on `conv` with feature `std` but `conv` does not have that feature.


failed to select a version for `conv` which could resolve this conflict