[INFO] cloning repository https://github.com/ramones156/toy-compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ramones156/toy-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Framones156%2Ftoy-compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Framones156%2Ftoy-compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 934df3099813def73571af99507307db708c7661
[INFO] checking ramones156/toy-compiler 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%2Framones156%2Ftoy-compiler" "/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/ramones156/toy-compiler
[INFO] finished tweaking git repo https://github.com/ramones156/toy-compiler
[INFO] tweaked toml for git repo https://github.com/ramones156/toy-compiler written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ramones156/toy-compiler 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/ramones156/toy-compiler 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] ba4c136de852fe52e657bfbe2204cab388a9b1195fbfa7e1351c43ffc42de73a
[INFO] running `Command { std: "docker" "start" "-a" "ba4c136de852fe52e657bfbe2204cab388a9b1195fbfa7e1351c43ffc42de73a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba4c136de852fe52e657bfbe2204cab388a9b1195fbfa7e1351c43ffc42de73a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba4c136de852fe52e657bfbe2204cab388a9b1195fbfa7e1351c43ffc42de73a", kill_on_drop: false }`
[INFO] [stdout] ba4c136de852fe52e657bfbe2204cab388a9b1195fbfa7e1351c43ffc42de73a
[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] f2bdfacc3f274d2280a1db462b80c7746238ced45d6efac5adc7373df0e7a7f1
[INFO] running `Command { std: "docker" "start" "-a" "f2bdfacc3f274d2280a1db462b80c7746238ced45d6efac5adc7373df0e7a7f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking toy-compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/parser.rs:153:43
[INFO] [stdout]     |
[INFO] [stdout] 153 |             Rule::Name => Expr::Reference(pair.as_str().parse().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/parser.rs:168:51
[INFO] [stdout]     |
[INFO] [stdout] 168 |             Rule::FunctionCall => Expr::Reference(pair.as_str().parse().unwrap()),
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `toy-compiler` (lib) due to 2 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/parser.rs:153:43
[INFO] [stdout]     |
[INFO] [stdout] 153 |             Rule::Name => Expr::Reference(pair.as_str().parse().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/parser.rs:168:51
[INFO] [stdout]     |
[INFO] [stdout] 168 |             Rule::FunctionCall => Expr::Reference(pair.as_str().parse().unwrap()),
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `toy-compiler` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "f2bdfacc3f274d2280a1db462b80c7746238ced45d6efac5adc7373df0e7a7f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2bdfacc3f274d2280a1db462b80c7746238ced45d6efac5adc7373df0e7a7f1", kill_on_drop: false }`
[INFO] [stdout] f2bdfacc3f274d2280a1db462b80c7746238ced45d6efac5adc7373df0e7a7f1