[INFO] cloning repository https://github.com/algon-320/toyterm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/algon-320/toyterm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falgon-320%2Ftoyterm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falgon-320%2Ftoyterm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a2844a79c059c9f22a94ea5f734a8aa52ba9cc4c
[INFO] checking algon-320/toyterm against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falgon-320%2Ftoyterm" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/algon-320/toyterm on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/algon-320/toyterm
[INFO] finished tweaking git repo https://github.com/algon-320/toyterm
[INFO] tweaked toml for git repo https://github.com/algon-320/toyterm written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/algon-320/toyterm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded const-cstr v0.3.0
[INFO] [stderr]   Downloaded fontconfig v0.2.0
[INFO] [stderr]   Downloaded yeslogic-fontconfig-sys v2.11.1
[INFO] [stderr]   Downloaded ucd v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a1ef56004eb78604819b3d2d0efb928377cfd16675869f685629673e2072dc8c
[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" "a1ef56004eb78604819b3d2d0efb928377cfd16675869f685629673e2072dc8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1ef56004eb78604819b3d2d0efb928377cfd16675869f685629673e2072dc8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1ef56004eb78604819b3d2d0efb928377cfd16675869f685629673e2072dc8c", kill_on_drop: false }`
[INFO] [stdout] a1ef56004eb78604819b3d2d0efb928377cfd16675869f685629673e2072dc8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00d3be561d605c2e9b3bc7a8ceb91d17a404bc455d3e239f6ba6e5c7a188f6fa
[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" "00d3be561d605c2e9b3bc7a8ceb91d17a404bc455d3e239f6ba6e5c7a188f6fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.87
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]     Checking const-cstr v0.3.0
[INFO] [stderr]    Compiling sdl2 v0.34.3
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking ucd v0.1.1
[INFO] [stderr]    Compiling sdl2-sys v0.34.3
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling yeslogic-fontconfig-sys v2.11.1
[INFO] [stderr]     Checking linked-hash-map v0.3.0
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking lexical-core v0.7.5
[INFO] [stderr]     Checking sixel v0.1.0 (/opt/rustwide/workdir/sixel)
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking serde-hjson v0.9.1
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking env_logger v0.8.3
[INFO] [stderr]     Checking fontconfig v0.2.0
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking config v0.10.1
[INFO] [stderr]     Checking toyterm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Top`
[INFO] [stdout]    --> src/terminal/mod.rs:127:5
[INFO] [stdout]     |
[INFO] [stdout] 127 |     Top,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Bottom`
[INFO] [stdout]    --> src/terminal/mod.rs:128:5
[INFO] [stdout]     |
[INFO] [stdout] 128 |     Bottom,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RightMost`
[INFO] [stdout]    --> src/terminal/mod.rs:130:5
[INFO] [stdout]     |
[INFO] [stdout] 130 |     RightMost,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Top`
[INFO] [stdout]    --> src/terminal/mod.rs:127:5
[INFO] [stdout]     |
[INFO] [stdout] 127 |     Top,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Bottom`
[INFO] [stdout]    --> src/terminal/mod.rs:128:5
[INFO] [stdout]     |
[INFO] [stdout] 128 |     Bottom,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RightMost`
[INFO] [stdout]    --> src/terminal/mod.rs:130:5
[INFO] [stdout]     |
[INFO] [stdout] 130 |     RightMost,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.80s
[INFO] running `Command { std: "docker" "inspect" "00d3be561d605c2e9b3bc7a8ceb91d17a404bc455d3e239f6ba6e5c7a188f6fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00d3be561d605c2e9b3bc7a8ceb91d17a404bc455d3e239f6ba6e5c7a188f6fa", kill_on_drop: false }`
[INFO] [stdout] 00d3be561d605c2e9b3bc7a8ceb91d17a404bc455d3e239f6ba6e5c7a188f6fa