[INFO] cloning repository https://github.com/blowin/image_to_ascii
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/blowin/image_to_ascii" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblowin%2Fimage_to_ascii", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblowin%2Fimage_to_ascii'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7298eaf8f111a4575ecee3cabb304e8427dbe6bb
[INFO] checking blowin/image_to_ascii against try#3d9fdbff4f377de96b3a51174e7a64086bee9a5c for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblowin%2Fimage_to_ascii" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/blowin/image_to_ascii on toolchain 3d9fdbff4f377de96b3a51174e7a64086bee9a5c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/blowin/image_to_ascii
[INFO] finished tweaking git repo https://github.com/blowin/image_to_ascii
[INFO] tweaked toml for git repo https://github.com/blowin/image_to_ascii written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/blowin/image_to_ascii already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-derive v0.2.5
[INFO] [stderr]   Downloaded color_quant v1.0.1
[INFO] [stderr]   Downloaded either v1.5.2
[INFO] [stderr]   Downloaded atty v0.2.11
[INFO] [stderr]   Downloaded num-integer v0.1.39
[INFO] [stderr]   Downloaded num-traits v0.2.6
[INFO] [stderr]   Downloaded syn v0.15.34
[INFO] [stderr]   Downloaded quote v0.6.12
[INFO] [stderr]   Downloaded adler32 v1.0.3
[INFO] [stderr]   Downloaded inflate v0.4.5
[INFO] [stderr]   Downloaded num-iter v0.1.37
[INFO] [stderr]   Downloaded proc-macro2 v0.4.29
[INFO] [stderr]   Downloaded nodrop v0.1.13
[INFO] [stderr]   Downloaded arrayvec v0.4.10
[INFO] [stderr]   Downloaded gif v0.10.1
[INFO] [stderr]   Downloaded redox_syscall v0.1.54
[INFO] [stderr]   Downloaded crossbeam-epoch v0.3.1
[INFO] [stderr]   Downloaded termion v1.5.2
[INFO] [stderr]   Downloaded lazy_static v1.3.0
[INFO] [stderr]   Downloaded num_cpus v1.10.0
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.15
[INFO] [stderr]   Downloaded memoffset v0.2.1
[INFO] [stderr]   Downloaded num-rational v0.2.1
[INFO] [stderr]   Downloaded ansi_term v0.11.0
[INFO] [stderr]   Downloaded vec_map v0.8.1
[INFO] [stderr]   Downloaded unicode-width v0.1.5
[INFO] [stderr]   Downloaded redox_termios v0.1.1
[INFO] [stderr]   Downloaded numtoa v0.1.0
[INFO] [stderr]   Downloaded winapi v0.3.7
[INFO] [stderr]   Downloaded crossbeam-deque v0.2.0
[INFO] [stderr]   Downloaded lzw v0.10.0
[INFO] [stderr]   Downloaded clap v2.33.0
[INFO] [stderr]   Downloaded scopeguard v0.3.3
[INFO] [stderr]   Downloaded strsim v0.8.0
[INFO] [stderr]   Downloaded textwrap v0.11.0
[INFO] [stderr]   Downloaded libc v0.2.54
[INFO] [stderr]   Downloaded image v0.21.1
[INFO] [stderr]   Downloaded bitflags v1.0.4
[INFO] [stderr]   Downloaded rayon v1.0.3
[INFO] [stderr]   Downloaded tiff v0.2.2
[INFO] [stderr]   Downloaded deflate v0.7.19
[INFO] [stderr]   Downloaded rayon-core v1.4.1
[INFO] [stderr]   Downloaded cfg-if v0.1.7
[INFO] [stderr]   Downloaded crossbeam-utils v0.2.2
[INFO] [stderr]   Downloaded unicode-xid v0.1.0
[INFO] [stderr]   Downloaded png v0.14.1
[INFO] [stderr]   Downloaded scoped_threadpool v0.1.9
[INFO] [stderr]   Downloaded byteorder v1.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17c3e1f2906d078a6c909755925a69b49eeaebc14ea474e6f8fc34014755c57d
[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" "17c3e1f2906d078a6c909755925a69b49eeaebc14ea474e6f8fc34014755c57d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17c3e1f2906d078a6c909755925a69b49eeaebc14ea474e6f8fc34014755c57d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17c3e1f2906d078a6c909755925a69b49eeaebc14ea474e6f8fc34014755c57d", kill_on_drop: false }`
[INFO] [stdout] 17c3e1f2906d078a6c909755925a69b49eeaebc14ea474e6f8fc34014755c57d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] c15317120af02236c3441265f740d33cf40a247759c41c13f216d2956a4b2a01
[INFO] running `Command { std: "docker" "start" "-a" "c15317120af02236c3441265f740d33cf40a247759c41c13f216d2956a4b2a01", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.54
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.29
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]     Checking num-traits v0.2.6
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking gif v0.10.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking deflate v0.7.19
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking png v0.14.1
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking image v0.21.1
[INFO] [stderr]     Checking image_to_ascii v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.93s
[INFO] running `Command { std: "docker" "inspect" "c15317120af02236c3441265f740d33cf40a247759c41c13f216d2956a4b2a01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c15317120af02236c3441265f740d33cf40a247759c41c13f216d2956a4b2a01", kill_on_drop: false }`
[INFO] [stdout] c15317120af02236c3441265f740d33cf40a247759c41c13f216d2956a4b2a01