[INFO] cloning repository https://github.com/jonahwilliams/rusty_tools
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jonahwilliams/rusty_tools" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonahwilliams%2Frusty_tools", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonahwilliams%2Frusty_tools'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4d94c11f44fb0463715e825a8c24233b8d6c2e5a
[INFO] checking jonahwilliams/rusty_tools against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonahwilliams%2Frusty_tools" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jonahwilliams/rusty_tools on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jonahwilliams/rusty_tools
[INFO] finished tweaking git repo https://github.com/jonahwilliams/rusty_tools
[INFO] tweaked toml for git repo https://github.com/jonahwilliams/rusty_tools written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/jonahwilliams/rusty_tools already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-sync v0.1.1
[INFO] [stderr]   Downloaded tempfile v3.0.6
[INFO] [stderr]   Downloaded encoding_rs v0.8.16
[INFO] [stderr]   Downloaded websocket v0.22.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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] 114cc25e9534b3f13a14a26d4907eb7a48ce20d92021e8990d8d229a3178a929
[INFO] running `Command { std: "docker" "start" "-a" "114cc25e9534b3f13a14a26d4907eb7a48ce20d92021e8990d8d229a3178a929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "114cc25e9534b3f13a14a26d4907eb7a48ce20d92021e8990d8d229a3178a929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "114cc25e9534b3f13a14a26d4907eb7a48ce20d92021e8990d8d229a3178a929", kill_on_drop: false }`
[INFO] [stdout] 114cc25e9534b3f13a14a26d4907eb7a48ce20d92021e8990d8d229a3178a929
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9400a1e0f7d78bf8ada83be85422cdaecbe8da273d37b325bdd1fee8ab4b179c
[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" "9400a1e0f7d78bf8ada83be85422cdaecbe8da273d37b325bdd1fee8ab4b179c", kill_on_drop: false }`
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling openssl v0.10.16
[INFO] [stderr]    Compiling serde v1.0.87
[INFO] [stderr]    Compiling crc32fast v1.1.2
[INFO] [stderr]    Compiling encoding_rs v0.8.16
[INFO] [stderr]     Checking safemem v0.3.0
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]    Compiling unicase v2.2.0
[INFO] [stderr]     Checking tokio-sync v0.1.1
[INFO] [stderr]    Compiling openssl-sys v0.9.40
[INFO] [stderr]     Checking getopts v0.2.18
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand_os v0.1.2
[INFO] [stderr]     Checking num_cpus v1.9.0
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking smallvec v0.6.8
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking bytes v0.4.11
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking tokio-executor v0.1.6
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking tokio-timer v0.2.10
[INFO] [stderr]     Checking tokio-current-thread v0.1.4
[INFO] [stderr]     Checking libflate v0.1.19
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]     Checking unicode-normalization v0.1.8
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking mime v0.3.13
[INFO] [stderr]     Checking tokio-io v0.1.11
[INFO] [stderr]     Checking http v0.1.15
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking uuid v0.7.2
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking tokio-reactor v0.1.8
[INFO] [stderr]     Checking crossbeam v0.6.0
[INFO] [stderr]     Checking tokio-threadpool v0.1.11
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking tokio-fs v0.1.5
[INFO] [stderr]     Checking h2 v0.1.16
[INFO] [stderr]     Checking hyper v0.10.15
[INFO] [stderr]     Checking tokio v0.1.15
[INFO] [stderr]    Compiling serde_derive v1.0.87
[INFO] [stderr]     Checking tokio-tls v0.2.1
[INFO] [stderr]     Checking serde_urlencoded v0.5.4
[INFO] [stderr]     Checking serde_json v1.0.38
[INFO] [stderr]     Checking hyper v0.12.24
[INFO] [stderr]     Checking websocket v0.22.2
[INFO] [stderr]     Checking hyper-tls v0.3.1
[INFO] [stderr]     Checking reqwest v0.9.10
[INFO] [stderr]     Checking flutter_tools v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 06s
[INFO] running `Command { std: "docker" "inspect" "9400a1e0f7d78bf8ada83be85422cdaecbe8da273d37b325bdd1fee8ab4b179c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9400a1e0f7d78bf8ada83be85422cdaecbe8da273d37b325bdd1fee8ab4b179c", kill_on_drop: false }`
[INFO] [stdout] 9400a1e0f7d78bf8ada83be85422cdaecbe8da273d37b325bdd1fee8ab4b179c