[INFO] fetching crate rascii 0.1.2...
[INFO] building rascii-0.1.2 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate rascii 0.1.2 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rascii 0.1.2
[INFO] finished tweaking crates.io crate rascii 0.1.2
[INFO] tweaked toml for crates.io crate rascii 0.1.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rascii 0.1.2 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 49 packages to latest compatible versions
[INFO] [stderr]       Adding image v0.21.3 (available: v0.25.8)
[INFO] [stderr]       Adding structopt v0.2.18 (available: v0.3.26)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4af5dd7a6de42b378cb57c98a58ed725541c7693923a712fcbf0afe824bf1987
[INFO] running `Command { std: "docker" "start" "-a" "4af5dd7a6de42b378cb57c98a58ed725541c7693923a712fcbf0afe824bf1987", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4af5dd7a6de42b378cb57c98a58ed725541c7693923a712fcbf0afe824bf1987", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4af5dd7a6de42b378cb57c98a58ed725541c7693923a712fcbf0afe824bf1987", kill_on_drop: false }`
[INFO] [stdout] 4af5dd7a6de42b378cb57c98a58ed725541c7693923a712fcbf0afe824bf1987
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19885cf4f153addbba764dc27b8183b4faf40011324321390e3139f9eb1042a7
[INFO] running `Command { std: "docker" "start" "-a" "19885cf4f153addbba764dc27b8183b4faf40011324321390e3139f9eb1042a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling unicode-width v0.1.14
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling deflate v0.7.20
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling gif v0.10.3
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling png v0.14.1
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling tiff v0.2.2
[INFO] [stderr]    Compiling image v0.21.3
[INFO] [stderr]    Compiling rascii v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `braille` is never read
[INFO] [stdout]    --> src/main.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 142 | struct Rascii {
[INFO] [stdout]     |        ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 151 |     pub braille: bool
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.70s
[INFO] running `Command { std: "docker" "inspect" "19885cf4f153addbba764dc27b8183b4faf40011324321390e3139f9eb1042a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19885cf4f153addbba764dc27b8183b4faf40011324321390e3139f9eb1042a7", kill_on_drop: false }`
[INFO] [stdout] 19885cf4f153addbba764dc27b8183b4faf40011324321390e3139f9eb1042a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e50aadd336569f32a6f005d78ed02624276aa53b1064ec95316f02bd78a91d73
[INFO] running `Command { std: "docker" "start" "-a" "e50aadd336569f32a6f005d78ed02624276aa53b1064ec95316f02bd78a91d73", kill_on_drop: false }`
[INFO] [stderr]    Compiling rascii v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `braille` is never read
[INFO] [stdout]    --> src/main.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 142 | struct Rascii {
[INFO] [stdout]     |        ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 151 |     pub braille: bool
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "e50aadd336569f32a6f005d78ed02624276aa53b1064ec95316f02bd78a91d73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e50aadd336569f32a6f005d78ed02624276aa53b1064ec95316f02bd78a91d73", kill_on_drop: false }`
[INFO] [stdout] e50aadd336569f32a6f005d78ed02624276aa53b1064ec95316f02bd78a91d73