[INFO] cloning repository https://github.com/frflcn/ctext_decoder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/frflcn/ctext_decoder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrflcn%2Fctext_decoder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrflcn%2Fctext_decoder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5fe6d94a88a634f09fd60a826a97f9d8b7af986a
[INFO] checking frflcn/ctext_decoder against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrflcn%2Fctext_decoder" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/frflcn/ctext_decoder
[INFO] finished tweaking git repo https://github.com/frflcn/ctext_decoder
[INFO] tweaked toml for git repo https://github.com/frflcn/ctext_decoder written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/frflcn/ctext_decoder on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/frflcn/ctext_decoder 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 213f7c9a528a29e4403a73fb1ff4551d160dd2ccf6cdb91fc90ba2ed4141948a
[INFO] running `Command { std: "docker" "start" "-a" "213f7c9a528a29e4403a73fb1ff4551d160dd2ccf6cdb91fc90ba2ed4141948a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "213f7c9a528a29e4403a73fb1ff4551d160dd2ccf6cdb91fc90ba2ed4141948a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "213f7c9a528a29e4403a73fb1ff4551d160dd2ccf6cdb91fc90ba2ed4141948a", kill_on_drop: false }`
[INFO] [stdout] 213f7c9a528a29e4403a73fb1ff4551d160dd2ccf6cdb91fc90ba2ed4141948a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98e5bb6f584d338468d297b7db6a1011cda0bb73d43558b45fb36e84fee90b86
[INFO] running `Command { std: "docker" "start" "-a" "98e5bb6f584d338468d297b7db6a1011cda0bb73d43558b45fb36e84fee90b86", kill_on_drop: false }`
[INFO] [stderr]     Checking x11text_decoder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> src/tests.rs:8:36
[INFO] [stdout]   |
[INFO] [stdout] 8 |     assert_eq!(decode_result.text, String::from_str("ab CD.Àé§\\~").unwrap());
[INFO] [stdout]   |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/tests.rs:15:36
[INFO] [stdout]    |
[INFO] [stdout] 15 |     assert_eq!(decode_result.text, String::from_str("ab CD.Àé§\\~").unwrap());
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/tests.rs:22:36
[INFO] [stdout]    |
[INFO] [stdout] 22 |     assert_eq!(decode_result.text, String::from_str("ab CD.タァ¥‾").unwrap());
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `x11text_decoder` (lib test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "98e5bb6f584d338468d297b7db6a1011cda0bb73d43558b45fb36e84fee90b86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98e5bb6f584d338468d297b7db6a1011cda0bb73d43558b45fb36e84fee90b86", kill_on_drop: false }`
[INFO] [stdout] 98e5bb6f584d338468d297b7db6a1011cda0bb73d43558b45fb36e84fee90b86