[INFO] cloning repository https://github.com/kumarmo2/impl-crafting-interpreters-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kumarmo2/impl-crafting-interpreters-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkumarmo2%2Fimpl-crafting-interpreters-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkumarmo2%2Fimpl-crafting-interpreters-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f9552d45de2bf52a5298eb21dfd748048218db8e
[INFO] checking kumarmo2/impl-crafting-interpreters-rs 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%2Fkumarmo2%2Fimpl-crafting-interpreters-rs" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kumarmo2/impl-crafting-interpreters-rs
[INFO] finished tweaking git repo https://github.com/kumarmo2/impl-crafting-interpreters-rs
[INFO] tweaked toml for git repo https://github.com/kumarmo2/impl-crafting-interpreters-rs written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kumarmo2/impl-crafting-interpreters-rs 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/kumarmo2/impl-crafting-interpreters-rs 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 9efa6bd3eccbbcf0ea13cb0ba39db9e39b0375497f234b1e7313996a308ab90b
[INFO] running `Command { std: "docker" "start" "-a" "9efa6bd3eccbbcf0ea13cb0ba39db9e39b0375497f234b1e7313996a308ab90b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9efa6bd3eccbbcf0ea13cb0ba39db9e39b0375497f234b1e7313996a308ab90b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9efa6bd3eccbbcf0ea13cb0ba39db9e39b0375497f234b1e7313996a308ab90b", kill_on_drop: false }`
[INFO] [stdout] 9efa6bd3eccbbcf0ea13cb0ba39db9e39b0375497f234b1e7313996a308ab90b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] dbf7c2916bf63b793ee85662ada1e19b240b0fa6e5d214a257057898c1da8aac
[INFO] running `Command { std: "docker" "start" "-a" "dbf7c2916bf63b793ee85662ada1e19b240b0fa6e5d214a257057898c1da8aac", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling anyhow v1.0.68
[INFO] [stderr]     Checking bytes v1.3.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.38
[INFO] [stderr]     Checking thiserror v1.0.38
[INFO] [stderr]     Checking interpreter-starter-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/token.rs:146:30
[INFO] [stdout]     |
[INFO] [stdout] 146 |                     unsafe { String::from_str(std::str::from_utf8_unchecked(&s)).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/token.rs:153:17
[INFO] [stdout]     |
[INFO] [stdout] 153 |                 String::from_str(std::str::from_utf8(identifier_bytes.as_ref()).unwrap()).unwrap()
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/token.rs:202:30
[INFO] [stdout]     |
[INFO] [stdout] 202 |                     unsafe { String::from_str(std::str::from_utf8_unchecked(&s)).unwrap() };
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/token.rs:207:17
[INFO] [stdout]     |
[INFO] [stdout] 207 |                 String::from_str(std::str::from_utf8(bytes.as_ref()).unwrap()).unwrap(),
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/token.rs:213:17
[INFO] [stdout]     |
[INFO] [stdout] 213 |                 String::from_str(std::str::from_utf8(identifier_bytes.as_ref()).unwrap()).unwrap()
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `interpreter-starter-rust` (bin "interpreter-starter-rust") due to 5 previous errors
[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/token.rs:146:30
[INFO] [stdout]     |
[INFO] [stdout] 146 |                     unsafe { String::from_str(std::str::from_utf8_unchecked(&s)).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/token.rs:153:17
[INFO] [stdout]     |
[INFO] [stdout] 153 |                 String::from_str(std::str::from_utf8(identifier_bytes.as_ref()).unwrap()).unwrap()
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/token.rs:202:30
[INFO] [stdout]     |
[INFO] [stdout] 202 |                     unsafe { String::from_str(std::str::from_utf8_unchecked(&s)).unwrap() };
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/token.rs:207:17
[INFO] [stdout]     |
[INFO] [stdout] 207 |                 String::from_str(std::str::from_utf8(bytes.as_ref()).unwrap()).unwrap(),
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/token.rs:213:17
[INFO] [stdout]     |
[INFO] [stdout] 213 |                 String::from_str(std::str::from_utf8(identifier_bytes.as_ref()).unwrap()).unwrap()
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `interpreter-starter-rust` (bin "interpreter-starter-rust" test) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "dbf7c2916bf63b793ee85662ada1e19b240b0fa6e5d214a257057898c1da8aac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbf7c2916bf63b793ee85662ada1e19b240b0fa6e5d214a257057898c1da8aac", kill_on_drop: false }`
[INFO] [stdout] dbf7c2916bf63b793ee85662ada1e19b240b0fa6e5d214a257057898c1da8aac
