[INFO] cloning repository https://github.com/zeng-y-l/algtype
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zeng-y-l/algtype" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzeng-y-l%2Falgtype", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzeng-y-l%2Falgtype'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ade63b9686bbdabadbc728c26e2d667c40c6d0ed
[INFO] checking zeng-y-l/algtype 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%2Fzeng-y-l%2Falgtype" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/zeng-y-l/algtype
[INFO] finished tweaking git repo https://github.com/zeng-y-l/algtype
[INFO] tweaked toml for git repo https://github.com/zeng-y-l/algtype written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zeng-y-l/algtype 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/zeng-y-l/algtype 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 61888045ecfa07bdd70a8c86a247bc1456cbb79ab5c4fa0d45ae4b604c8932a5
[INFO] running `Command { std: "docker" "start" "-a" "61888045ecfa07bdd70a8c86a247bc1456cbb79ab5c4fa0d45ae4b604c8932a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "61888045ecfa07bdd70a8c86a247bc1456cbb79ab5c4fa0d45ae4b604c8932a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61888045ecfa07bdd70a8c86a247bc1456cbb79ab5c4fa0d45ae4b604c8932a5", kill_on_drop: false }`
[INFO] [stdout] 61888045ecfa07bdd70a8c86a247bc1456cbb79ab5c4fa0d45ae4b604c8932a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] e926aab822539a0918785444e9a84ebaa91d56c1f6c2b9916729fdeaf4449d80
[INFO] running `Command { std: "docker" "start" "-a" "e926aab822539a0918785444e9a84ebaa91d56c1f6c2b9916729fdeaf4449d80", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking tempfile v3.10.1
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking quote v1.0.35
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking syn v2.0.48
[INFO] [stderr]     Checking proptest v1.4.0
[INFO] [stderr]     Checking algtype_derive v0.1.0 (/opt/rustwide/workdir/algtype_derive)
[INFO] [stderr]     Checking algtype v0.1.0 (/opt/rustwide/workdir/algtype)
[INFO] [stderr]     Checking count_enum v0.1.0 (/opt/rustwide/workdir/count_enum)
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> count_enum/src/impls.rs:42:17
[INFO] [stdout]    |
[INFO] [stdout] 42 |                   self.abs_diff(Self::MIN).try_into().ok()
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 93 | / impl_number!(
[INFO] [stdout] 94 | |     u8 u16 u32 u64 u128 usize
[INFO] [stdout] 95 | |     i8 i16 i32 i64 i128 isize
[INFO] [stdout] 96 | | );
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the macro `impl_number` (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<usize, Infallible>
[INFO] [stdout]   --> count_enum/src/impls.rs:72:25
[INFO] [stdout]    |
[INFO] [stdout] 72 |                   let c = Self::MAX.abs_diff(*from).try_into().ok()?;
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 93 | / impl_number!(
[INFO] [stdout] 94 | |     u8 u16 u32 u64 u128 usize
[INFO] [stdout] 95 | |     i8 i16 i32 i64 i128 isize
[INFO] [stdout] 96 | | );
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `impl_number` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `count_enum` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "e926aab822539a0918785444e9a84ebaa91d56c1f6c2b9916729fdeaf4449d80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e926aab822539a0918785444e9a84ebaa91d56c1f6c2b9916729fdeaf4449d80", kill_on_drop: false }`
[INFO] [stdout] e926aab822539a0918785444e9a84ebaa91d56c1f6c2b9916729fdeaf4449d80