[INFO] cloning repository https://github.com/NicolasPllr1/rox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NicolasPllr1/rox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNicolasPllr1%2Frox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNicolasPllr1%2Frox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 767ff25e663adb55890ad1e506aea3cc591b954c
[INFO] checking NicolasPllr1/rox 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%2FNicolasPllr1%2Frox" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/NicolasPllr1/rox
[INFO] finished tweaking git repo https://github.com/NicolasPllr1/rox
[INFO] tweaked toml for git repo https://github.com/NicolasPllr1/rox written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/NicolasPllr1/rox 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/NicolasPllr1/rox 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] db03b6d3278cc3413c9c049a4ebbb1534f1e95f89c167257972bb3a4401cfdb6
[INFO] running `Command { std: "docker" "start" "-a" "db03b6d3278cc3413c9c049a4ebbb1534f1e95f89c167257972bb3a4401cfdb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db03b6d3278cc3413c9c049a4ebbb1534f1e95f89c167257972bb3a4401cfdb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db03b6d3278cc3413c9c049a4ebbb1534f1e95f89c167257972bb3a4401cfdb6", kill_on_drop: false }`
[INFO] [stdout] db03b6d3278cc3413c9c049a4ebbb1534f1e95f89c167257972bb3a4401cfdb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] aa94e156745a091dee30ab9177a5672d8857ea82a05bc6cf7c3e4d56e2a6f5fd
[INFO] running `Command { std: "docker" "start" "-a" "aa94e156745a091dee30ab9177a5672d8857ea82a05bc6cf7c3e4d56e2a6f5fd", kill_on_drop: false }`
[INFO] [stderr]     Checking rox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `current_idx` is never read
[INFO] [stdout]   --> src/lexing/scanner.rs:87:29
[INFO] [stdout]    |
[INFO] [stdout] 87 | ...                   current_idx += 1;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lexing/token.rs:129:17
[INFO] [stdout]     |
[INFO] [stdout] 129 |                 String::from_str("null").expect("expect valid string"),
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current_idx` is never read
[INFO] [stdout]   --> src/lexing/scanner.rs:87:29
[INFO] [stdout]    |
[INFO] [stdout] 87 | ...                   current_idx += 1;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rox` (lib test) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lexing/token.rs:129:17
[INFO] [stdout]     |
[INFO] [stdout] 129 |                 String::from_str("null").expect("expect valid string"),
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rox` (lib) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "aa94e156745a091dee30ab9177a5672d8857ea82a05bc6cf7c3e4d56e2a6f5fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa94e156745a091dee30ab9177a5672d8857ea82a05bc6cf7c3e4d56e2a6f5fd", kill_on_drop: false }`
[INFO] [stdout] aa94e156745a091dee30ab9177a5672d8857ea82a05bc6cf7c3e4d56e2a6f5fd
