[INFO] cloning repository https://github.com/vavrusa/rust-kres
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vavrusa/rust-kres" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvavrusa%2Frust-kres", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvavrusa%2Frust-kres'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 381f1adc986d02c6511942fb1de4796d823df750
[INFO] checking vavrusa/rust-kres against master#e1613686e0efc80a1a18b1263625450a8de3fb04 for pr-154492
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvavrusa%2Frust-kres" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/vavrusa/rust-kres
[INFO] finished tweaking git repo https://github.com/vavrusa/rust-kres
[INFO] tweaked toml for git repo https://github.com/vavrusa/rust-kres written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/vavrusa/rust-kres on toolchain e1613686e0efc80a1a18b1263625450a8de3fb04
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e1613686e0efc80a1a18b1263625450a8de3fb04" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/vavrusa/rust-kres already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e1613686e0efc80a1a18b1263625450a8de3fb04" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: /workspace/builds/worker-3-tc1/source/Cargo.toml: `panic` setting is ignored for `bench` profile
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/jedisct1/dnssector`
[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`
[INFO] [stderr]     ... which satisfies dependency `chomp = "^0.3"` (locked to 0.3.1) of package `dnssector v0.1.3 (https://github.com/jedisct1/dnssector?rev=ef7625bbc0f97518eadc5878e5ed476fa54c19ae#ef7625bb)`
[INFO] [stderr]     ... which satisfies git dependency `dnssector` (locked to 0.1.3) of package `kres v0.1.4 (/workspace/builds/worker-3-tc1/source/crates/kres)`
[INFO] [stderr] versions that meet the requirements `^0.3.3` (locked to 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


overridden task result to prepare-fail:unknown

Caused by:
    0: uncategorized prepare error
    1: command failed: exit status: 101
       
       warning: /workspace/builds/worker-3-tc1/source/Cargo.toml: `panic` setting is ignored for `bench` profile
           Blocking waiting for file lock on package cache
           Updating git repository `https://github.com/jedisct1/dnssector`
           Updating crates.io index
       error: failed to select a version for `conv`.
           ... required by package `chomp v0.3.1`
           ... which satisfies dependency `chomp = "^0.3"` (locked to 0.3.1) of package `dnssector v0.1.3 (https://github.com/jedisct1/dnssector?rev=ef7625bbc0f97518eadc5878e5ed476fa54c19ae#ef7625bb)`
           ... which satisfies git dependency `dnssector` (locked to 0.1.3) of package `kres v0.1.4 (/workspace/builds/worker-3-tc1/source/crates/kres)`
       versions that meet the requirements `^0.3.3` (locked to 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