[INFO] cloning repository https://github.com/kangxiaoning/rust-exercises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kangxiaoning/rust-exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkangxiaoning%2Frust-exercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkangxiaoning%2Frust-exercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 62f9c68cac6d84e77f2dc371e5e4a60655f2530d
[INFO] checking kangxiaoning/rust-exercises against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkangxiaoning%2Frust-exercises" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kangxiaoning/rust-exercises on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kangxiaoning/rust-exercises
[INFO] finished tweaking git repo https://github.com/kangxiaoning/rust-exercises
[INFO] tweaked toml for git repo https://github.com/kangxiaoning/rust-exercises written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/kangxiaoning/rust-exercises already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded piston2d-graphics v0.37.0
[INFO] [stderr]   Downloaded piston2d-gfx_graphics v0.70.0
[INFO] [stderr]   Downloaded backtrace v0.3.51
[INFO] [stderr]   Downloaded piston v0.52.0
[INFO] [stderr]   Downloaded piston_window v0.113.0
[INFO] [stderr]   Downloaded rayon v1.4.1
[INFO] [stderr]   Downloaded pistoncore-glutin_window v0.66.0
[INFO] [stderr]   Downloaded logger v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94e21a9331646a7a68316354291acb60e3af03f10dc76cf01dc12f7db0d513f1
[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" "94e21a9331646a7a68316354291acb60e3af03f10dc76cf01dc12f7db0d513f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94e21a9331646a7a68316354291acb60e3af03f10dc76cf01dc12f7db0d513f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94e21a9331646a7a68316354291acb60e3af03f10dc76cf01dc12f7db0d513f1", kill_on_drop: false }`
[INFO] [stdout] 94e21a9331646a7a68316354291acb60e3af03f10dc76cf01dc12f7db0d513f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8722f1f54dce435ed27153994d715fe2462aa64c9749d1f5fa0f0256d243dc7b
[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" "8722f1f54dce435ed27153994d715fe2462aa64c9749d1f5fa0f0256d243dc7b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling rayon-core v1.8.1
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking tinyvec v0.3.4
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking weezl v0.1.1
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking os_str_bytes v2.3.2
[INFO] [stderr]     Checking client v0.1.0 (/opt/rustwide/workdir/chat/client)
[INFO] [stderr]     Checking server v0.1.0 (/opt/rustwide/workdir/chat/server)
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling rayon v1.4.1
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking gif v0.11.1
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]     Checking libloading v0.6.3
[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking plugin v0.2.6
[INFO] [stderr]     Checking wayland-sys v0.21.13
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking tiff v0.5.0
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking gfx_core v0.9.2
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking x11-dl v2.18.5
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]     Checking png v0.16.7
[INFO] [stderr]    Compiling wayland-scanner v0.21.13
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.1.0
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.5
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stderr]    Compiling gfx_gl v0.6.1
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking gfx v0.18.2
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking piston2d-graphics v0.37.0
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]    Compiling wayland-client v0.21.13
[INFO] [stderr]    Compiling wayland-protocols v0.21.13
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking wayland-commons v0.21.13
[INFO] [stderr]     Checking iron v0.6.1
[INFO] [stderr]     Checking logger v0.4.0
[INFO] [stderr]     Checking router v0.6.0
[INFO] [stderr]     Checking image v0.23.10
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]     Checking gfx_device_gl v0.16.2
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]     Checking piston-gfx_texture v0.41.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.70.0
[INFO] [stderr]     Checking port_sniffer v0.1.0 (/opt/rustwide/workdir/port_sniffer)
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.6
[INFO] [stderr]     Checking winit v0.19.5
[INFO] [stderr]     Checking glutin v0.21.2
[INFO] [stderr]     Checking pistoncore-input v1.0.0
[INFO] [stderr]     Checking serde_json v1.0.58
[INFO] [stderr]     Checking uuid v0.5.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking web_api v0.1.0 (/opt/rustwide/workdir/web_api)
[INFO] [stderr]     Checking blockchain v0.1.0 (/opt/rustwide/workdir/blockchain)
[INFO] [stderr]     Checking pistoncore-window v0.47.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.52.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.66.0
[INFO] [stderr]     Checking piston v0.52.0
[INFO] [stderr]     Checking piston_window v0.113.0
[INFO] [stderr]     Checking snake v0.1.0 (/opt/rustwide/workdir/snake)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 40s
[INFO] running `Command { std: "docker" "inspect" "8722f1f54dce435ed27153994d715fe2462aa64c9749d1f5fa0f0256d243dc7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8722f1f54dce435ed27153994d715fe2462aa64c9749d1f5fa0f0256d243dc7b", kill_on_drop: false }`
[INFO] [stdout] 8722f1f54dce435ed27153994d715fe2462aa64c9749d1f5fa0f0256d243dc7b