[INFO] cloning repository https://github.com/FeynmanTesla/Rust-Caesar-Cipher
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FeynmanTesla/Rust-Caesar-Cipher" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFeynmanTesla%2FRust-Caesar-Cipher", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFeynmanTesla%2FRust-Caesar-Cipher'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 946fdbdf9a5cc400a1b22fb8a641dfd1bbe34ed1
[INFO] checking FeynmanTesla/Rust-Caesar-Cipher against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFeynmanTesla%2FRust-Caesar-Cipher" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FeynmanTesla/Rust-Caesar-Cipher on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FeynmanTesla/Rust-Caesar-Cipher
[INFO] finished tweaking git repo https://github.com/FeynmanTesla/Rust-Caesar-Cipher
[INFO] tweaked toml for git repo https://github.com/FeynmanTesla/Rust-Caesar-Cipher written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/FeynmanTesla/Rust-Caesar-Cipher already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/linebender/druid.git`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded instant v0.1.7
[INFO] [stderr]   Downloaded simple_logger v1.9.0
[INFO] [stderr]   Downloaded utf16_lit v1.0.1
[INFO] [stderr]   Downloaded time-macros v0.1.0
[INFO] [stderr]   Downloaded intl-memoizer v0.5.0
[INFO] [stderr]   Downloaded intl_pluralrules v7.0.0
[INFO] [stderr]   Downloaded fluent-bundle v0.12.0
[INFO] [stderr]   Downloaded core-text v19.1.0
[INFO] [stderr]   Downloaded core-foundation-sys v0.8.1
[INFO] [stderr]   Downloaded piet-common v0.2.0-pre3
[INFO] [stderr]   Downloaded core-graphics v0.22.1
[INFO] [stderr]   Downloaded piet-direct2d v0.2.0-pre3
[INFO] [stderr]   Downloaded keyboard-types v0.5.0
[INFO] [stderr]   Downloaded glib v0.10.2
[INFO] [stderr]   Downloaded libc v0.2.73
[INFO] [stderr]   Downloaded kurbo v0.6.3
[INFO] [stderr]   Downloaded piet v0.2.0-pre3
[INFO] [stderr]   Downloaded standback v0.2.10
[INFO] [stderr]   Downloaded time v0.2.21
[INFO] [stderr]   Downloaded piet-coregraphics v0.2.0-pre3
[INFO] [stderr]   Downloaded piet-cairo v0.2.0-pre3
[INFO] [stderr]   Downloaded piet-web v0.2.0-pre3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6866ee439602047823b74fac94fe14055b94b0d7c5286f199389fc5934ffae6
[INFO] running `Command { std: "docker" "start" "-a" "e6866ee439602047823b74fac94fe14055b94b0d7c5286f199389fc5934ffae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6866ee439602047823b74fac94fe14055b94b0d7c5286f199389fc5934ffae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6866ee439602047823b74fac94fe14055b94b0d7c5286f199389fc5934ffae6", kill_on_drop: false }`
[INFO] [stdout] e6866ee439602047823b74fac94fe14055b94b0d7c5286f199389fc5934ffae6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc43da9579d8918220921551e942bbd0fc17c5640fa9a13d003085d7ace8aebb
[INFO] running `Command { std: "docker" "start" "-a" "cc43da9579d8918220921551e942bbd0fc17c5640fa9a13d003085d7ace8aebb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling strum v0.18.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]    Compiling cairo-rs v0.9.1
[INFO] [stderr]    Compiling gio v0.9.1
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]     Checking tinystr v0.3.4
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling standback v0.2.10
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]    Compiling gdk-pixbuf v0.9.0
[INFO] [stderr]     Checking unic-langid-impl v0.9.0
[INFO] [stderr]    Compiling pango v0.9.1
[INFO] [stderr]    Compiling const_fn v0.4.2
[INFO] [stderr]    Compiling atk v0.9.0
[INFO] [stderr]    Compiling gdk v0.13.2
[INFO] [stderr]     Checking unic-langid v0.9.0
[INFO] [stderr]    Compiling gtk v0.9.2
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling time v0.2.21
[INFO] [stderr]     Checking kurbo v0.6.3
[INFO] [stderr]     Checking xi-unicode v0.2.1
[INFO] [stderr]     Checking intl_pluralrules v7.0.0
[INFO] [stderr]     Checking type-map v0.3.0
[INFO] [stderr]     Checking fluent-langneg v0.13.0
[INFO] [stderr]     Checking instant v0.1.7
[INFO] [stderr]     Checking keyboard-types v0.5.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking intl-memoizer v0.5.0
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking fluent-syntax v0.9.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking simple_logger v1.9.0
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking piet v0.2.0-pre3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling glib-macros v0.10.1
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling rental-impl v0.5.5
[INFO] [stderr]    Compiling druid-derive v0.3.1 (https://github.com/linebender/druid.git#225f270a)
[INFO] [stderr]     Checking time-macros v0.1.0
[INFO] [stderr]    Compiling thiserror v1.0.20
[INFO] [stderr]    Compiling system-deps v1.3.2
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]    Compiling glib-sys v0.10.1
[INFO] [stderr]    Compiling gobject-sys v0.10.0
[INFO] [stderr]    Compiling gio-sys v0.10.1
[INFO] [stderr]    Compiling cairo-sys-rs v0.10.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.10.0
[INFO] [stderr]    Compiling pango-sys v0.10.0
[INFO] [stderr]    Compiling atk-sys v0.10.0
[INFO] [stderr]    Compiling gdk-sys v0.10.0
[INFO] [stderr]    Compiling gtk-sys v0.10.0
[INFO] [stderr]     Checking rental v0.5.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking glib v0.10.2
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking fluent-bundle v0.12.0
[INFO] [stderr]     Checking piet-cairo v0.2.0-pre3
[INFO] [stderr]     Checking piet-common v0.2.0-pre3
[INFO] [stderr]     Checking druid-shell v0.6.0 (https://github.com/linebender/druid.git#225f270a)
[INFO] [stderr]     Checking druid v0.6.0 (https://github.com/linebender/druid.git#225f270a)
[INFO] [stderr]     Checking rust_caesar_cipher v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 32.36s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: fluent-bundle v0.12.0, rental v0.5.5
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "cc43da9579d8918220921551e942bbd0fc17c5640fa9a13d003085d7ace8aebb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc43da9579d8918220921551e942bbd0fc17c5640fa9a13d003085d7ace8aebb", kill_on_drop: false }`
[INFO] [stdout] cc43da9579d8918220921551e942bbd0fc17c5640fa9a13d003085d7ace8aebb