[INFO] cloning repository https://github.com/hangj/inttype-enum
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hangj/inttype-enum" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhangj%2Finttype-enum", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhangj%2Finttype-enum'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5e6d47c6866ad99d06a768d33cbbdc41edaa632c
[INFO] checking hangj/inttype-enum 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%2Fhangj%2Finttype-enum" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hangj/inttype-enum
[INFO] finished tweaking git repo https://github.com/hangj/inttype-enum
[INFO] tweaked toml for git repo https://github.com/hangj/inttype-enum written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hangj/inttype-enum 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/hangj/inttype-enum 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] aecfa51a3cceb0ea9ddff31ad0b051e4f18e59d55ffa28fafd6efb2d6bffcd46
[INFO] running `Command { std: "docker" "start" "-a" "aecfa51a3cceb0ea9ddff31ad0b051e4f18e59d55ffa28fafd6efb2d6bffcd46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aecfa51a3cceb0ea9ddff31ad0b051e4f18e59d55ffa28fafd6efb2d6bffcd46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aecfa51a3cceb0ea9ddff31ad0b051e4f18e59d55ffa28fafd6efb2d6bffcd46", kill_on_drop: false }`
[INFO] [stdout] aecfa51a3cceb0ea9ddff31ad0b051e4f18e59d55ffa28fafd6efb2d6bffcd46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] e1b8e193e90ca3df8d1978c6dca1fdab21779a5aaf7395de73cf5336259c8275
[INFO] running `Command { std: "docker" "start" "-a" "e1b8e193e90ca3df8d1978c6dca1fdab21779a5aaf7395de73cf5336259c8275", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]     Checking unicode-ident v1.0.9
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]     Checking syn v2.0.104
[INFO] [stderr]     Checking inttype-enum v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<Test2, Infallible>
[INFO] [stdout]   --> tests/test.rs:48:16
[INFO] [stdout]    |
[INFO] [stdout] 48 |     assert_eq!(Test2::try_from(16), Ok(Test2::C(16)));
[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<Test2, Infallible>
[INFO] [stdout]   --> tests/test.rs:48:37
[INFO] [stdout]    |
[INFO] [stdout] 48 |     assert_eq!(Test2::try_from(16), Ok(Test2::C(16)));
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Test2, Infallible>
[INFO] [stdout]   --> tests/test.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     assert_eq!(Test2::try_from(16), Ok(Test2::C(16)));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Test2, Infallible>
[INFO] [stdout]   --> tests/test.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     assert_eq!(Test2::try_from(16), Ok(Test2::C(16)));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Test2, Infallible>
[INFO] [stdout]   --> tests/test.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     assert_eq!(Test2::try_from(16), Ok(Test2::C(16)));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Test2, Infallible>
[INFO] [stdout]   --> tests/test.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     assert_eq!(Test2::try_from(16), Ok(Test2::C(16)));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `inttype-enum` (test "test") due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "e1b8e193e90ca3df8d1978c6dca1fdab21779a5aaf7395de73cf5336259c8275", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1b8e193e90ca3df8d1978c6dca1fdab21779a5aaf7395de73cf5336259c8275", kill_on_drop: false }`
[INFO] [stdout] e1b8e193e90ca3df8d1978c6dca1fdab21779a5aaf7395de73cf5336259c8275