[INFO] fetching crate hidden 0.0.1-alpha...
[INFO] checking hidden-0.0.1-alpha against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate hidden 0.0.1-alpha into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate hidden 0.0.1-alpha on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hidden 0.0.1-alpha
[INFO] finished tweaking crates.io crate hidden 0.0.1-alpha
[INFO] tweaked toml for crates.io crate hidden 0.0.1-alpha written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca153f1ada2a5599862c49c3aec2ffe991823c89a338a5c391355b23f3ce7613
[INFO] running `Command { std: "docker" "start" "-a" "ca153f1ada2a5599862c49c3aec2ffe991823c89a338a5c391355b23f3ce7613", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca153f1ada2a5599862c49c3aec2ffe991823c89a338a5c391355b23f3ce7613", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca153f1ada2a5599862c49c3aec2ffe991823c89a338a5c391355b23f3ce7613", kill_on_drop: false }`
[INFO] [stdout] ca153f1ada2a5599862c49c3aec2ffe991823c89a338a5c391355b23f3ce7613
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98b44e09cd7a857c26c60aeab198ea1acd18282c6aad912516dba8b24704aa56
[INFO] running `Command { std: "docker" "start" "-a" "98b44e09cd7a857c26c60aeab198ea1acd18282c6aad912516dba8b24704aa56", kill_on_drop: false }`
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking hidden v0.0.1-alpha (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `Command { std: "docker" "inspect" "98b44e09cd7a857c26c60aeab198ea1acd18282c6aad912516dba8b24704aa56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98b44e09cd7a857c26c60aeab198ea1acd18282c6aad912516dba8b24704aa56", kill_on_drop: false }`
[INFO] [stdout] 98b44e09cd7a857c26c60aeab198ea1acd18282c6aad912516dba8b24704aa56