[INFO] fetching crate chomp 0.3.1...
[INFO] checking chomp-0.3.1 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] extracting crate chomp 0.3.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate chomp 0.3.1 on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "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-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "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 `debugtrace`.
[INFO] [stderr]     ... required by package `chomp v0.3.1 (/workspace/builds/worker-0-tc1/source)`
[INFO] [stderr] versions that meet the requirements `^0.1.0` are: 0.1.0
[INFO] [stderr] 
[INFO] [stderr] the package `chomp` depends on `debugtrace`, with features: `backtrace` but `debugtrace` does not have these features.
[INFO] [stderr]  It has a required dependency with that name, but only optional dependencies can be used as features.
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `debugtrace` which could resolve this conflict
[ERROR] this task or one of its parent failed!
[ERROR] command failed: exit status: 101
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking chomp-0.3.1 against try#9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88 for pr-124157
[INFO] extracting crate chomp 0.3.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate chomp 0.3.1 on toolchain 9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "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-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "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 `debugtrace`.
[INFO] [stderr]     ... required by package `chomp v0.3.1 (/workspace/builds/worker-0-tc2/source)`
[INFO] [stderr] versions that meet the requirements `^0.1.0` are: 0.1.0
[INFO] [stderr] 
[INFO] [stderr] the package `chomp` depends on `debugtrace`, with features: `backtrace` but `debugtrace` does not have these features.
[INFO] [stderr]  It has a required dependency with that name, but only optional dependencies can be used as features.
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `debugtrace` which could resolve this conflict
[INFO] checking chomp-0.3.1 against try#9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88 for pr-124157
[INFO] extracting crate chomp 0.3.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate chomp 0.3.1 on toolchain 9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "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-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "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 `debugtrace`.
[INFO] [stderr]     ... required by package `chomp v0.3.1 (/workspace/builds/worker-0-tc2/source)`
[INFO] [stderr] versions that meet the requirements `^0.1.0` are: 0.1.0
[INFO] [stderr] 
[INFO] [stderr] the package `chomp` depends on `debugtrace`, with features: `backtrace` but `debugtrace` does not have these features.
[INFO] [stderr]  It has a required dependency with that name, but only optional dependencies can be used as features.
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `debugtrace` which could resolve this conflict
[INFO] checking chomp-0.3.1 against try#9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88 for pr-124157
[INFO] extracting crate chomp 0.3.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate chomp 0.3.1 on toolchain 9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "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-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "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 `debugtrace`.
[INFO] [stderr]     ... required by package `chomp v0.3.1 (/workspace/builds/worker-0-tc2/source)`
[INFO] [stderr] versions that meet the requirements `^0.1.0` are: 0.1.0
[INFO] [stderr] 
[INFO] [stderr] the package `chomp` depends on `debugtrace`, with features: `backtrace` but `debugtrace` does not have these features.
[INFO] [stderr]  It has a required dependency with that name, but only optional dependencies can be used as features.
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `debugtrace` which could resolve this conflict
[INFO] checking chomp-0.3.1 against try#9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88 for pr-124157
[INFO] extracting crate chomp 0.3.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate chomp 0.3.1 on toolchain 9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "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-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "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 `debugtrace`.
[INFO] [stderr]     ... required by package `chomp v0.3.1 (/workspace/builds/worker-0-tc2/source)`
[INFO] [stderr] versions that meet the requirements `^0.1.0` are: 0.1.0
[INFO] [stderr] 
[INFO] [stderr] the package `chomp` depends on `debugtrace`, with features: `backtrace` but `debugtrace` does not have these features.
[INFO] [stderr]  It has a required dependency with that name, but only optional dependencies can be used as features.
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `debugtrace` which could resolve this conflict
[INFO] checking chomp-0.3.1 against try#9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88 for pr-124157
[INFO] extracting crate chomp 0.3.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate chomp 0.3.1 on toolchain 9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "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-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "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 `debugtrace`.
[INFO] [stderr]     ... required by package `chomp v0.3.1 (/workspace/builds/worker-0-tc2/source)`
[INFO] [stderr] versions that meet the requirements `^0.1.0` are: 0.1.0
[INFO] [stderr] 
[INFO] [stderr] the package `chomp` depends on `debugtrace`, with features: `backtrace` but `debugtrace` does not have these features.
[INFO] [stderr]  It has a required dependency with that name, but only optional dependencies can be used as features.
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `debugtrace` which could resolve this conflict
[ERROR] this task or one of its parent failed!
[ERROR] command failed: exit status: 101
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
