[INFO] cloning repository https://github.com/mubaraqwahab/learn_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mubaraqwahab/learn_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmubaraqwahab%2Flearn_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmubaraqwahab%2Flearn_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1f0824907043492daf41831855914e5d34a62882
[INFO] checking mubaraqwahab/learn_rust/1f0824907043492daf41831855914e5d34a62882 against master#f21fbac535ab2c3bc50db20547f4d48477357103 for pr-143193
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmubaraqwahab%2Flearn_rust" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mubaraqwahab/learn_rust
[INFO] finished tweaking git repo https://github.com/mubaraqwahab/learn_rust
[INFO] tweaked toml for git repo https://github.com/mubaraqwahab/learn_rust written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mubaraqwahab/learn_rust on toolchain f21fbac535ab2c3bc50db20547f4d48477357103
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f21fbac535ab2c3bc50db20547f4d48477357103" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mubaraqwahab/learn_rust 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" "+f21fbac535ab2c3bc50db20547f4d48477357103" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded trpl v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+f21fbac535ab2c3bc50db20547f4d48477357103" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b6b146718b999020baf7d95b5c8a917a9233b16ad288f13007789818e9be3cea
[INFO] running `Command { std: "docker" "start" "-a" "b6b146718b999020baf7d95b5c8a917a9233b16ad288f13007789818e9be3cea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6b146718b999020baf7d95b5c8a917a9233b16ad288f13007789818e9be3cea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6b146718b999020baf7d95b5c8a917a9233b16ad288f13007789818e9be3cea", kill_on_drop: false }`
[INFO] [stdout] b6b146718b999020baf7d95b5c8a917a9233b16ad288f13007789818e9be3cea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+f21fbac535ab2c3bc50db20547f4d48477357103" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94dc7b6272655ce7046c4f8c841d196f919eea714b78900277dd5065d52c69c9
[INFO] running `Command { std: "docker" "start" "-a" "94dc7b6272655ce7046c4f8c841d196f919eea714b78900277dd5065d52c69c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
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[INFO] [stderr]    Compiling structopt-derive v0.4.18
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[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
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[INFO] [stderr]    Compiling futures-macro v0.3.31
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[INFO] [stderr]    Compiling phf_generator v0.11.2
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[INFO] [stderr]     Checking hyper-tls v0.6.0
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[INFO] [stderr]     Checking playground v0.1.0 (/opt/rustwide/workdir/playground)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 39.13s
[INFO] running `Command { std: "docker" "inspect" "94dc7b6272655ce7046c4f8c841d196f919eea714b78900277dd5065d52c69c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94dc7b6272655ce7046c4f8c841d196f919eea714b78900277dd5065d52c69c9", kill_on_drop: false }`
[INFO] [stdout] 94dc7b6272655ce7046c4f8c841d196f919eea714b78900277dd5065d52c69c9