[INFO] fetching crate tox 0.1.1...
[INFO] checking tox-0.1.1 against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] extracting crate tox 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tox 0.1.1 on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tox 0.1.1
[INFO] finished tweaking crates.io crate tox 0.1.1
[INFO] tweaked toml for crates.io crate tox 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c6048cdbcfade0189bc1fcd1b9116e9b4762ec970f987d306eb1f26e2c9464e0
[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" "c6048cdbcfade0189bc1fcd1b9116e9b4762ec970f987d306eb1f26e2c9464e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6048cdbcfade0189bc1fcd1b9116e9b4762ec970f987d306eb1f26e2c9464e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6048cdbcfade0189bc1fcd1b9116e9b4762ec970f987d306eb1f26e2c9464e0", kill_on_drop: false }`
[INFO] [stdout] c6048cdbcfade0189bc1fcd1b9116e9b4762ec970f987d306eb1f26e2c9464e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3aa1adc6d283248f593317090c3cc656eb372dcce251ca2e33e343b72d596986
[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" "3aa1adc6d283248f593317090c3cc656eb372dcce251ca2e33e343b72d596986", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]     Checking futures-io v0.3.14
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]     Checking cookie-factory v0.3.2
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]     Checking futures-channel v0.3.14
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking get_if_addrs v0.5.3
[INFO] [stderr]     Checking lexical-core v0.7.5
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking lru v0.6.5
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]    Compiling libsodium-sys v0.2.6
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking nom v5.1.2
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]     Checking sodiumoxide v0.2.6
[INFO] [stderr]     Checking tox_crypto v0.1.1
[INFO] [stderr]     Checking tox_binary_io v0.1.1
[INFO] [stderr]     Checking tox_encryptsave v0.1.0
[INFO] [stderr]     Checking tox_packet v0.1.1
[INFO] [stderr]     Checking tox_core v0.1.1
[INFO] [stderr]     Checking tox v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 47s
[INFO] running `Command { std: "docker" "inspect" "3aa1adc6d283248f593317090c3cc656eb372dcce251ca2e33e343b72d596986", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3aa1adc6d283248f593317090c3cc656eb372dcce251ca2e33e343b72d596986", kill_on_drop: false }`
[INFO] [stdout] 3aa1adc6d283248f593317090c3cc656eb372dcce251ca2e33e343b72d596986