[INFO] fetching crate credent_fs 0.1.0...
[INFO] checking credent_fs-0.1.0 against try#6f12b8fe67b4eed2e838dab803ed9493b9d62c0f for pr-79073
[INFO] extracting crate credent_fs 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate credent_fs 0.1.0 on toolchain 6f12b8fe67b4eed2e838dab803ed9493b9d62c0f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate credent_fs 0.1.0
[INFO] finished tweaking crates.io crate credent_fs 0.1.0
[INFO] tweaked toml for crates.io crate credent_fs 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-fs v1.5.0
[INFO] [stderr]   Downloaded credent_model v0.1.0
[INFO] [stderr]   Downloaded async-lock v2.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2a70c59f1aedacb8f2d704cfeb7a0091bd2a7abeed02837b852a530b57aa742f
[INFO] running `Command { std: "docker" "start" "-a" "2a70c59f1aedacb8f2d704cfeb7a0091bd2a7abeed02837b852a530b57aa742f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a70c59f1aedacb8f2d704cfeb7a0091bd2a7abeed02837b852a530b57aa742f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a70c59f1aedacb8f2d704cfeb7a0091bd2a7abeed02837b852a530b57aa742f", kill_on_drop: false }`
[INFO] [stdout] 2a70c59f1aedacb8f2d704cfeb7a0091bd2a7abeed02837b852a530b57aa742f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1fd1d5fe1b8fa75a37750e3af4e9211d9db8d8ef5f2d8a078c7237384512d0f7
[INFO] running `Command { std: "docker" "start" "-a" "1fd1d5fe1b8fa75a37750e3af4e9211d9db8d8ef5f2d8a078c7237384512d0f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.50
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]     Checking pin-project-lite v0.1.11
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking async-lock v2.3.0
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking dirs v3.0.1
[INFO] [stderr]     Checking futures-lite v1.11.2
[INFO] [stderr]     Checking async-channel v1.5.1
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking async-fs v1.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking credent_model v0.1.0
[INFO] [stderr]     Checking credent_fs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.79s
[INFO] running `Command { std: "docker" "inspect" "1fd1d5fe1b8fa75a37750e3af4e9211d9db8d8ef5f2d8a078c7237384512d0f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fd1d5fe1b8fa75a37750e3af4e9211d9db8d8ef5f2d8a078c7237384512d0f7", kill_on_drop: false }`
[INFO] [stdout] 1fd1d5fe1b8fa75a37750e3af4e9211d9db8d8ef5f2d8a078c7237384512d0f7