[INFO] updating cached repository https://github.com/fdncred/colortable_rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] [stderr] From https://github.com/fdncred/colortable_rs
[INFO] [stderr]    6161c44..a9c5c64  master     -> master
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a9c5c64d2838e0e8bb85a09ae35732e965ade2de
[INFO] checking fdncred/colortable_rs against try#0ab79c4b48ad19260fa46623f452c1b403a360e8 for pr-74315
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffdncred%2Fcolortable_rs" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fdncred/colortable_rs on toolchain 0ab79c4b48ad19260fa46623f452c1b403a360e8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fdncred/colortable_rs
[INFO] finished tweaking git repo https://github.com/fdncred/colortable_rs
[INFO] tweaked toml for git repo https://github.com/fdncred/colortable_rs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/fdncred/colortable_rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "fetch" "--locked" "--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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1534775728caa447139e4e9e42227ff496627287efab7ee59c9f5cf9a837fc39
[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" "1534775728caa447139e4e9e42227ff496627287efab7ee59c9f5cf9a837fc39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1534775728caa447139e4e9e42227ff496627287efab7ee59c9f5cf9a837fc39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1534775728caa447139e4e9e42227ff496627287efab7ee59c9f5cf9a837fc39", kill_on_drop: false }`
[INFO] [stdout] 1534775728caa447139e4e9e42227ff496627287efab7ee59c9f5cf9a837fc39
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a21f8b4b1afb786b4d38ae6968f7206ad5b3cbd1e5e90befe347f61ddc9e5804
[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" "a21f8b4b1afb786b4d38ae6968f7206ad5b3cbd1e5e90befe347f61ddc9e5804", kill_on_drop: false }`
[INFO] [stderr]     Checking colortable_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `bg`
[INFO] [stdout]    --> src/main.rs:104:10
[INFO] [stdout]     |
[INFO] [stdout] 104 |     for (bg, bg_color) in ansi_bg_sequences.iter().enumerate() {
[INFO] [stdout]     |          ^^ help: if this is intentional, prefix it with an underscore: `_bg`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/main.rs:114:12
[INFO] [stdout]     |
[INFO] [stdout] 114 |         if fg >= 0 { 
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bg`
[INFO] [stdout]    --> src/main.rs:104:10
[INFO] [stdout]     |
[INFO] [stdout] 104 |     for (bg, bg_color) in ansi_bg_sequences.iter().enumerate() {
[INFO] [stdout]     |          ^^ help: if this is intentional, prefix it with an underscore: `_bg`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/main.rs:114:12
[INFO] [stdout]     |
[INFO] [stdout] 114 |         if fg >= 0 { 
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "a21f8b4b1afb786b4d38ae6968f7206ad5b3cbd1e5e90befe347f61ddc9e5804", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a21f8b4b1afb786b4d38ae6968f7206ad5b3cbd1e5e90befe347f61ddc9e5804", kill_on_drop: false }`
[INFO] [stdout] a21f8b4b1afb786b4d38ae6968f7206ad5b3cbd1e5e90befe347f61ddc9e5804