[INFO] cloning repository https://github.com/jeromefroe/mandelbrot-web
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jeromefroe/mandelbrot-web" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeromefroe%2Fmandelbrot-web", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeromefroe%2Fmandelbrot-web'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b0720b8135de5909271e798b535fef0346d00ab1
[INFO] checking jeromefroe/mandelbrot-web against try#55b3f428b4fac6790b1e8492e0b91ff2d80aec7c for pr-77035
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeromefroe%2Fmandelbrot-web" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jeromefroe/mandelbrot-web on toolchain 55b3f428b4fac6790b1e8492e0b91ff2d80aec7c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jeromefroe/mandelbrot-web
[INFO] finished tweaking git repo https://github.com/jeromefroe/mandelbrot-web
[INFO] tweaked toml for git repo https://github.com/jeromefroe/mandelbrot-web written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/jeromefroe/mandelbrot-web already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-core v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f48b4fdff40fe5c5de222173ed934e64c95321c3f9e2ad531d429639a953f0c1
[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" "f48b4fdff40fe5c5de222173ed934e64c95321c3f9e2ad531d429639a953f0c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f48b4fdff40fe5c5de222173ed934e64c95321c3f9e2ad531d429639a953f0c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f48b4fdff40fe5c5de222173ed934e64c95321c3f9e2ad531d429639a953f0c1", kill_on_drop: false }`
[INFO] [stdout] f48b4fdff40fe5c5de222173ed934e64c95321c3f9e2ad531d429639a953f0c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b87e9041fc0f0e791b4516fdb6a62065c213d23f6368f219512991d651b5cb34
[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" "b87e9041fc0f0e791b4516fdb6a62065c213d23f6368f219512991d651b5cb34", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking spin v0.5.1
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking tokio-executor v0.2.0-alpha.1
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking gif v0.10.2
[INFO] [stderr]     Checking arrayvec v0.4.11
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking tracing-core v0.1.4
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.17
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.17
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking tokio-current-thread v0.2.0-alpha.1
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking tokio-io v0.2.0-alpha.1
[INFO] [stderr]     Checking png v0.15.0
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking tokio-codec v0.2.0-alpha.1
[INFO] [stderr]     Checking rayon-core v1.5.0
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]     Checking tokio-sync v0.2.0-alpha.1
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.17
[INFO] [stderr]     Checking tokio-reactor v0.2.0-alpha.1
[INFO] [stderr]     Checking tokio-threadpool v0.2.0-alpha.1
[INFO] [stderr]     Checking tokio-timer v0.3.0-alpha.1
[INFO] [stderr]     Checking tokio-tcp v0.2.0-alpha.1
[INFO] [stderr]     Checking tokio-udp v0.2.0-alpha.1
[INFO] [stderr]     Checking tokio-uds v0.3.0-alpha.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking tokio-fs v0.2.0-alpha.1
[INFO] [stderr]    Compiling tokio-macros v0.2.0-alpha.1
[INFO] [stderr]     Checking tokio v0.2.0-alpha.1
[INFO] [stderr]     Checking tiff v0.3.1
[INFO] [stderr]     Checking image v0.22.1
[INFO] [stderr]     Checking mandelbrot-web v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `async_await` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_await)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `async_await` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_await)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 57.19s
[INFO] running `Command { std: "docker" "inspect" "b87e9041fc0f0e791b4516fdb6a62065c213d23f6368f219512991d651b5cb34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b87e9041fc0f0e791b4516fdb6a62065c213d23f6368f219512991d651b5cb34", kill_on_drop: false }`
[INFO] [stdout] b87e9041fc0f0e791b4516fdb6a62065c213d23f6368f219512991d651b5cb34