[INFO] cloning repository https://github.com/nsmlzl/barnsley_fern
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nsmlzl/barnsley_fern" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnsmlzl%2Fbarnsley_fern", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnsmlzl%2Fbarnsley_fern'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e36371c02fa5815b3fc339f6049db0b54b4cc012
[INFO] testing nsmlzl/barnsley_fern against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnsmlzl%2Fbarnsley_fern" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nsmlzl/barnsley_fern on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nsmlzl/barnsley_fern
[INFO] finished tweaking git repo https://github.com/nsmlzl/barnsley_fern
[INFO] tweaked toml for git repo https://github.com/nsmlzl/barnsley_fern written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/nsmlzl/barnsley_fern already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cbb543d242e3bf80175f1e0ab6dc27ad1d50a46252393ea29c517b08fe1cbc87
[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" "cbb543d242e3bf80175f1e0ab6dc27ad1d50a46252393ea29c517b08fe1cbc87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbb543d242e3bf80175f1e0ab6dc27ad1d50a46252393ea29c517b08fe1cbc87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbb543d242e3bf80175f1e0ab6dc27ad1d50a46252393ea29c517b08fe1cbc87", kill_on_drop: false }`
[INFO] [stdout] cbb543d242e3bf80175f1e0ab6dc27ad1d50a46252393ea29c517b08fe1cbc87
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2cf5bc615edfcb3438f5ba15771051e6bc1b306a08d466289556f216740048b
[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" "b2cf5bc615edfcb3438f5ba15771051e6bc1b306a08d466289556f216740048b", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling plotters-backend v0.3.0
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling float-ord v0.2.0
[INFO] [stderr]    Compiling bytemuck v1.4.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling miniz_oxide v0.3.7
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling gif v0.10.3
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling plotters-svg v0.3.0
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.9
[INFO] [stderr]    Compiling pathfinder_simd v0.5.0
[INFO] [stderr]    Compiling deflate v0.7.20
[INFO] [stderr]    Compiling jpeg-decoder v0.1.20
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling stb_truetype v0.3.1
[INFO] [stderr]    Compiling dirs-sys v0.3.5
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling png v0.16.8
[INFO] [stderr]    Compiling png v0.15.3
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling ordered-float v1.1.1
[INFO] [stderr]    Compiling freetype v0.4.1
[INFO] [stderr]    Compiling servo-fontconfig v0.4.0
[INFO] [stderr]    Compiling rusttype v0.8.3
[INFO] [stderr]    Compiling pathfinder_geometry v0.5.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling font-kit v0.7.1
[INFO] [stderr]    Compiling image v0.22.5
[INFO] [stderr]    Compiling image v0.23.12
[INFO] [stderr]    Compiling plotters-bitmap v0.3.0
[INFO] [stderr]    Compiling plotters v0.3.0
[INFO] [stderr]    Compiling barnsley_fern v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `Command { std: "docker" "inspect" "b2cf5bc615edfcb3438f5ba15771051e6bc1b306a08d466289556f216740048b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2cf5bc615edfcb3438f5ba15771051e6bc1b306a08d466289556f216740048b", kill_on_drop: false }`
[INFO] [stdout] b2cf5bc615edfcb3438f5ba15771051e6bc1b306a08d466289556f216740048b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b68292a2f7b679126db73fb021d77f016f44e68d8f09b6f4e46a5482c013b52
[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" "4b68292a2f7b679126db73fb021d77f016f44e68d8f09b6f4e46a5482c013b52", kill_on_drop: false }`
[INFO] [stderr]    Compiling barnsley_fern v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `Command { std: "docker" "inspect" "4b68292a2f7b679126db73fb021d77f016f44e68d8f09b6f4e46a5482c013b52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b68292a2f7b679126db73fb021d77f016f44e68d8f09b6f4e46a5482c013b52", kill_on_drop: false }`
[INFO] [stdout] 4b68292a2f7b679126db73fb021d77f016f44e68d8f09b6f4e46a5482c013b52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c68f5d760875d6e2fbda690a05e96ab13cbb023df5afda70d5ed2b03a54118dd
[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" "c68f5d760875d6e2fbda690a05e96ab13cbb023df5afda70d5ed2b03a54118dd", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/barnsley_fern-b218dcaead1f246d)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c68f5d760875d6e2fbda690a05e96ab13cbb023df5afda70d5ed2b03a54118dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c68f5d760875d6e2fbda690a05e96ab13cbb023df5afda70d5ed2b03a54118dd", kill_on_drop: false }`
[INFO] [stdout] c68f5d760875d6e2fbda690a05e96ab13cbb023df5afda70d5ed2b03a54118dd