[INFO] fetching crate image2ascii 0.2.1...
[INFO] testing image2ascii-0.2.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate image2ascii 0.2.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate image2ascii 0.2.1 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate image2ascii 0.2.1
[INFO] finished tweaking crates.io crate image2ascii 0.2.1
[INFO] tweaked toml for crates.io crate image2ascii 0.2.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate image2ascii 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a003b97e0d9fc8f2a33480b92877f3d3a36e8863e19e4080e273f73e85d3d471
[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" "a003b97e0d9fc8f2a33480b92877f3d3a36e8863e19e4080e273f73e85d3d471", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a003b97e0d9fc8f2a33480b92877f3d3a36e8863e19e4080e273f73e85d3d471", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a003b97e0d9fc8f2a33480b92877f3d3a36e8863e19e4080e273f73e85d3d471", kill_on_drop: false }`
[INFO] [stdout] a003b97e0d9fc8f2a33480b92877f3d3a36e8863e19e4080e273f73e85d3d471
[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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--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] b0cd29da81afbc12b9bcd9c1232f05c717a1305af0ab7a79832a6314ea34999d
[INFO] running `Command { std: "docker" "start" "-a" "b0cd29da81afbc12b9bcd9c1232f05c717a1305af0ab7a79832a6314ea34999d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling bytemuck v1.3.1
[INFO] [stderr]    Compiling ab_glyph_rasterizer v0.1.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling gif v0.10.3
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling tiff v0.5.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling jpeg-decoder v0.1.20
[INFO] [stderr]    Compiling rusttype v0.9.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling png v0.16.7
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling image v0.23.8
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.9
[INFO] [stderr]    Compiling structopt v0.3.16
[INFO] [stderr]    Compiling image2ascii v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/lib.rs:6:39
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::{self, BufWriter, Write, Read};
[INFO] [stdout]   |                                       ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `Command { std: "docker" "inspect" "b0cd29da81afbc12b9bcd9c1232f05c717a1305af0ab7a79832a6314ea34999d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0cd29da81afbc12b9bcd9c1232f05c717a1305af0ab7a79832a6314ea34999d", kill_on_drop: false }`
[INFO] [stdout] b0cd29da81afbc12b9bcd9c1232f05c717a1305af0ab7a79832a6314ea34999d
[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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27cc8263d60c9eaff0420f30614cc2173eccf0cbe007ac409024337cb9e443ce
[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" "27cc8263d60c9eaff0420f30614cc2173eccf0cbe007ac409024337cb9e443ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling image2ascii v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/lib.rs:6:39
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::{self, BufWriter, Write, Read};
[INFO] [stdout]   |                                       ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.87s
[INFO] running `Command { std: "docker" "inspect" "27cc8263d60c9eaff0420f30614cc2173eccf0cbe007ac409024337cb9e443ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27cc8263d60c9eaff0420f30614cc2173eccf0cbe007ac409024337cb9e443ce", kill_on_drop: false }`
[INFO] [stdout] 27cc8263d60c9eaff0420f30614cc2173eccf0cbe007ac409024337cb9e443ce
[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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", 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] ea74d1ba3d45122d97cbb6549033030d136daddcfd972ad45dc6195854779924
[INFO] running `Command { std: "docker" "start" "-a" "ea74d1ba3d45122d97cbb6549033030d136daddcfd972ad45dc6195854779924", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]  --> src/lib.rs:6:39
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::io::{self, BufWriter, Write, Read};
[INFO] [stderr]   |                                       ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `image2ascii` (lib) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/image2ascii-4eda173ec9577cee)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test char2darray_overwrite_line_works ... ok
[INFO] [stdout] test char2darray_overwrite_rect_center_trans_works ... ok
[INFO] [stdout] test char2darray_overwrite_fn_works ... ok
[INFO] [stdout] test ascii2density_works ... ok
[INFO] [stdout] test char2darray_overwrite_rect_center_works ... ok
[INFO] [stdout] test char2darray_overwrite_rect_works ... ok
[INFO] [stdout] test char2darray_to_lines_works ... ok
[INFO] [stdout] test pad_works ... ok
[INFO] [stdout] test char2darray_from_works ... ok
[INFO] [stdout] test char2darray_height_width_works ... ok
[INFO] [stdout] test char2darray_overwrite_char_works ... ok
[INFO] [stdout] test char2darray_save ... ok
[INFO] [stdout] test char2darray_new_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/image2ascii-06f22454ed0bfdff)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/string2ascii-a91a6b7c028abb1a)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests image2ascii
[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] [stdout] 
[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] [stdout] 
[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" "ea74d1ba3d45122d97cbb6549033030d136daddcfd972ad45dc6195854779924", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea74d1ba3d45122d97cbb6549033030d136daddcfd972ad45dc6195854779924", kill_on_drop: false }`
[INFO] [stdout] ea74d1ba3d45122d97cbb6549033030d136daddcfd972ad45dc6195854779924