[INFO] fetching crate tox 0.1.0...
[INFO] checking tox-0.1.0 against master#39b841dfe36f90a7cd111e7f0c55f32594f6e578 for pr-77035
[INFO] extracting crate tox 0.1.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate tox 0.1.0 on toolchain 39b841dfe36f90a7cd111e7f0c55f32594f6e578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tox 0.1.0
[INFO] finished tweaking crates.io crate tox 0.1.0
[INFO] tweaked toml for crates.io crate tox 0.1.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b6e1f26bb4456548d62d095d62bf5271d2597cce1c8d34e2340545cdeb54f538
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b6e1f26bb4456548d62d095d62bf5271d2597cce1c8d34e2340545cdeb54f538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6e1f26bb4456548d62d095d62bf5271d2597cce1c8d34e2340545cdeb54f538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6e1f26bb4456548d62d095d62bf5271d2597cce1c8d34e2340545cdeb54f538", kill_on_drop: false }`
[INFO] [stdout] b6e1f26bb4456548d62d095d62bf5271d2597cce1c8d34e2340545cdeb54f538
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe00ccbba79df0caa1e9843c13f2588908d32facf99bd895bcd55649d1b33efe
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fe00ccbba79df0caa1e9843c13f2588908d32facf99bd895bcd55649d1b33efe", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]     Checking futures-sink v0.3.8
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking c_linked_list v1.1.1
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling libsodium-sys v0.2.6
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking lru v0.6.2
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking futures-channel v0.3.8
[INFO] [stderr]     Checking get_if_addrs v0.5.3
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio v0.2.24
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Checking sodiumoxide v0.2.6
[INFO] [stderr]     Checking tox_crypto v0.1.0
[INFO] [stderr]     Checking tox_binary_io v0.1.0
[INFO] [stderr]     Checking tox_encryptsave v0.1.0
[INFO] [stderr]     Checking tox_packet v0.1.0
[INFO] [stderr]     Checking tox_core v0.1.0
[INFO] [stderr]     Checking tox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 23s
[INFO] running `Command { std: "docker" "inspect" "fe00ccbba79df0caa1e9843c13f2588908d32facf99bd895bcd55649d1b33efe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe00ccbba79df0caa1e9843c13f2588908d32facf99bd895bcd55649d1b33efe", kill_on_drop: false }`
[INFO] [stdout] fe00ccbba79df0caa1e9843c13f2588908d32facf99bd895bcd55649d1b33efe