[INFO] cloning repository https://github.com/meganehouser/rustmatrix
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/meganehouser/rustmatrix" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeganehouser%2Frustmatrix", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeganehouser%2Frustmatrix'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7139dacee7355bac8fd47b6612ec4401ee08ba05
[INFO] testing meganehouser/rustmatrix against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeganehouser%2Frustmatrix" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/meganehouser/rustmatrix on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/meganehouser/rustmatrix
[INFO] finished tweaking git repo https://github.com/meganehouser/rustmatrix
[INFO] tweaked toml for git repo https://github.com/meganehouser/rustmatrix written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/meganehouser/rustmatrix already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded darling_macro v0.10.1
[INFO] [stderr]   Downloaded darling v0.10.1
[INFO] [stderr]   Downloaded enumset_derive v0.4.3
[INFO] [stderr]   Downloaded enumset v0.4.4
[INFO] [stderr]   Downloaded strsim v0.9.2
[INFO] [stderr]   Downloaded enum-map v0.6.1
[INFO] [stderr]   Downloaded cursive v0.13.0
[INFO] [stderr]   Downloaded darling_core v0.10.1
[INFO] [stderr]   Downloaded array-macro v1.0.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", 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] 3b73060e9258be7f46b94dc422ee598834576319b75ef78e5ded460c917e8b46
[INFO] running `Command { std: "docker" "start" "-a" "3b73060e9258be7f46b94dc422ee598834576319b75ef78e5ded460c917e8b46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3b73060e9258be7f46b94dc422ee598834576319b75ef78e5ded460c917e8b46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b73060e9258be7f46b94dc422ee598834576319b75ef78e5ded460c917e8b46", kill_on_drop: false }`
[INFO] [stdout] 3b73060e9258be7f46b94dc422ee598834576319b75ef78e5ded460c917e8b46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1f9b2368c528fa8c1b86101f97cf7deb352f3c200d432bcc03a77363beaab60
[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" "f1f9b2368c528fa8c1b86101f97cf7deb352f3c200d432bcc03a77363beaab60", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.9.2
[INFO] [stderr]    Compiling arc-swap v0.4.3
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling array-macro v1.0.4
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling ncurses v5.99.0
[INFO] [stderr]    Compiling term_size v0.3.1
[INFO] [stderr]    Compiling termion v1.5.3
[INFO] [stderr]    Compiling toml v0.5.3
[INFO] [stderr]    Compiling chrono v0.4.9
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling signal-hook-registry v1.1.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling signal-hook v0.1.10
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling darling_core v0.10.1
[INFO] [stderr]    Compiling enum-map-derive v0.4.3
[INFO] [stderr]    Compiling enum-map v0.6.1
[INFO] [stderr]    Compiling darling_macro v0.10.1
[INFO] [stderr]    Compiling darling v0.10.1
[INFO] [stderr]    Compiling enumset_derive v0.4.3
[INFO] [stderr]    Compiling enumset v0.4.4
[INFO] [stderr]    Compiling cursive v0.13.0
[INFO] [stderr]    Compiling rustmatrix v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `previous_char`
[INFO] [stdout]   --> src/view.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     previous_char: Character,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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 34.29s
[INFO] running `Command { std: "docker" "inspect" "f1f9b2368c528fa8c1b86101f97cf7deb352f3c200d432bcc03a77363beaab60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1f9b2368c528fa8c1b86101f97cf7deb352f3c200d432bcc03a77363beaab60", kill_on_drop: false }`
[INFO] [stdout] f1f9b2368c528fa8c1b86101f97cf7deb352f3c200d432bcc03a77363beaab60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09ac8dafdb7f18cbb667a1b8d1944c2171c21c4d7d07e60b0e3532c8e4967066
[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" "09ac8dafdb7f18cbb667a1b8d1944c2171c21c4d7d07e60b0e3532c8e4967066", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustmatrix v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `previous_char`
[INFO] [stdout]   --> src/view.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     previous_char: Character,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "09ac8dafdb7f18cbb667a1b8d1944c2171c21c4d7d07e60b0e3532c8e4967066", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09ac8dafdb7f18cbb667a1b8d1944c2171c21c4d7d07e60b0e3532c8e4967066", kill_on_drop: false }`
[INFO] [stdout] 09ac8dafdb7f18cbb667a1b8d1944c2171c21c4d7d07e60b0e3532c8e4967066
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 797ea74e517564e9978d115179c70294f4e9e08f0a660019ca5fd7b8df78605a
[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" "797ea74e517564e9978d115179c70294f4e9e08f0a660019ca5fd7b8df78605a", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: field is never read: `previous_char`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/view.rs:56:5
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 56 |     previous_char: Character,
[INFO] [stdout] 
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rustmatrix-df66cc4e814a4dc8)
[INFO] running `Command { std: "docker" "inspect" "797ea74e517564e9978d115179c70294f4e9e08f0a660019ca5fd7b8df78605a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "797ea74e517564e9978d115179c70294f4e9e08f0a660019ca5fd7b8df78605a", kill_on_drop: false }`
[INFO] [stdout] 797ea74e517564e9978d115179c70294f4e9e08f0a660019ca5fd7b8df78605a