[INFO] fetching crate flatbox_systems 0.1.0...
[INFO] checking flatbox_systems-0.1.0 against master#7c41ee66db9d08e3989858acaefa1c72a6a88518 for mutual-coercion
[INFO] extracting crate flatbox_systems 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate flatbox_systems 0.1.0
[INFO] finished tweaking crates.io crate flatbox_systems 0.1.0
[INFO] tweaked toml for crates.io crate flatbox_systems 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate flatbox_systems 0.1.0 on toolchain 7c41ee66db9d08e3989858acaefa1c72a6a88518
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7c41ee66db9d08e3989858acaefa1c72a6a88518" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7c41ee66db9d08e3989858acaefa1c72a6a88518" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 329 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7c41ee66db9d08e3989858acaefa1c72a6a88518" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+7c41ee66db9d08e3989858acaefa1c72a6a88518" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21db450a049531dcbac202814c0a3aace0789b7066e932f42e9082a804428c2a
[INFO] running `Command { std: "docker" "start" "-a" "21db450a049531dcbac202814c0a3aace0789b7066e932f42e9082a804428c2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21db450a049531dcbac202814c0a3aace0789b7066e932f42e9082a804428c2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21db450a049531dcbac202814c0a3aace0789b7066e932f42e9082a804428c2a", kill_on_drop: false }`
[INFO] [stdout] 21db450a049531dcbac202814c0a3aace0789b7066e932f42e9082a804428c2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+7c41ee66db9d08e3989858acaefa1c72a6a88518" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec14498c3179a7d836004fd2bfdccd8070a0ed4c89f0325f12cd0d6391c79fbd
[INFO] running `Command { std: "docker" "start" "-a" "ec14498c3179a7d836004fd2bfdccd8070a0ed4c89f0325f12cd0d6391c79fbd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.105
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[INFO] [stderr]    Compiling serde_derive v1.0.228
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[INFO] [stderr]     Checking flatbox_core v0.1.0
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[INFO] [stderr]     Checking flatbox_assets v0.1.0
[INFO] [stderr]     Checking flatbox_render v0.1.0
[INFO] [stderr]     Checking flatbox_systems v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 30s
[INFO] running `Command { std: "docker" "inspect" "ec14498c3179a7d836004fd2bfdccd8070a0ed4c89f0325f12cd0d6391c79fbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec14498c3179a7d836004fd2bfdccd8070a0ed4c89f0325f12cd0d6391c79fbd", kill_on_drop: false }`
[INFO] [stdout] ec14498c3179a7d836004fd2bfdccd8070a0ed4c89f0325f12cd0d6391c79fbd