[INFO] fetching crate old_nat 0.1.0...
[INFO] checking old_nat-0.1.0 against try#1463461488056994d1b84e8b752e7c11c7fae7aa for pr-154205
[INFO] extracting crate old_nat 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate old_nat 0.1.0
[INFO] finished tweaking crates.io crate old_nat 0.1.0
[INFO] tweaked toml for crates.io crate old_nat 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate old_nat 0.1.0 on toolchain 1463461488056994d1b84e8b752e7c11c7fae7aa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate old_nat 0.1.0 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" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] c9ee66a00f68ea8a88d94257775eef54283cc930480992f1bcb6d1953349a4b1
[INFO] running `Command { std: "docker" "start" "-a" "c9ee66a00f68ea8a88d94257775eef54283cc930480992f1bcb6d1953349a4b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9ee66a00f68ea8a88d94257775eef54283cc930480992f1bcb6d1953349a4b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9ee66a00f68ea8a88d94257775eef54283cc930480992f1bcb6d1953349a4b1", kill_on_drop: false }`
[INFO] [stdout] c9ee66a00f68ea8a88d94257775eef54283cc930480992f1bcb6d1953349a4b1
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[INFO] [stdout] dd5f3a5cddb06744bea22fe069c9b5e8e196d388380111e9246e7764dae4d9fa
[INFO] running `Command { std: "docker" "start" "-a" "dd5f3a5cddb06744bea22fe069c9b5e8e196d388380111e9246e7764dae4d9fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
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[INFO] [stderr]     Checking old_nat v0.1.0 (/opt/rustwide/workdir)
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