[INFO] fetching crate cao 0.1.2...
[INFO] checking cao-0.1.2 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate cao 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate cao 0.1.2 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 cao 0.1.2
[INFO] finished tweaking crates.io crate cao 0.1.2
[INFO] tweaked toml for crates.io crate cao 0.1.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate cao 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--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" "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] 4782dcb6bc80a19247dbfb0169c76cdccff6ac4bb0bd55b30ddd47e2531babdd
[INFO] running `Command { std: "docker" "start" "-a" "4782dcb6bc80a19247dbfb0169c76cdccff6ac4bb0bd55b30ddd47e2531babdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4782dcb6bc80a19247dbfb0169c76cdccff6ac4bb0bd55b30ddd47e2531babdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4782dcb6bc80a19247dbfb0169c76cdccff6ac4bb0bd55b30ddd47e2531babdd", kill_on_drop: false }`
[INFO] [stdout] 4782dcb6bc80a19247dbfb0169c76cdccff6ac4bb0bd55b30ddd47e2531babdd
[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" "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] d5a8a77b5bf8b694fdc0a7f2e9074d0f91613e15557e439761f63f09c0ae9ce4
[INFO] running `Command { std: "docker" "start" "-a" "d5a8a77b5bf8b694fdc0a7f2e9074d0f91613e15557e439761f63f09c0ae9ce4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.91
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.67
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling async-trait v0.1.48
[INFO] [stderr]     Checking futures-core v0.3.13
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking futures-task v0.3.13
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking chunked_transfer v1.4.0
[INFO] [stderr]     Checking futures-io v0.3.13
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking tinyvec v1.1.1
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tokio v1.4.0
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking futures-channel v0.3.13
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking if-addrs v0.6.5
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking resolv-conf v0.7.0
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking idna v0.2.2
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking webpki-roots v0.21.0
[INFO] [stderr]     Checking rustls v0.19.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking ureq v2.1.0
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking trust-dns-proto v0.20.1
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking cao v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking trust-dns-resolver v0.20.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.55s
[INFO] running `Command { std: "docker" "inspect" "d5a8a77b5bf8b694fdc0a7f2e9074d0f91613e15557e439761f63f09c0ae9ce4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5a8a77b5bf8b694fdc0a7f2e9074d0f91613e15557e439761f63f09c0ae9ce4", kill_on_drop: false }`
[INFO] [stdout] d5a8a77b5bf8b694fdc0a7f2e9074d0f91613e15557e439761f63f09c0ae9ce4