[INFO] fetching crate bifurcate 0.1.0...
[INFO] checking bifurcate-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate bifurcate 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate bifurcate 0.1.0
[INFO] finished tweaking crates.io crate bifurcate 0.1.0
[INFO] tweaked toml for crates.io crate bifurcate 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate bifurcate 0.1.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] ec94521836a13f5096df2460f4f09470527912eb2938a1cc2f979351446c341b
[INFO] running `Command { std: "docker" "start" "-a" "ec94521836a13f5096df2460f4f09470527912eb2938a1cc2f979351446c341b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec94521836a13f5096df2460f4f09470527912eb2938a1cc2f979351446c341b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec94521836a13f5096df2460f4f09470527912eb2938a1cc2f979351446c341b", kill_on_drop: false }`
[INFO] [stdout] ec94521836a13f5096df2460f4f09470527912eb2938a1cc2f979351446c341b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 7c5daab7596f8783d71d952d3d312501eda4a3f533e85600d81ce34881bb6e9a
[INFO] running `Command { std: "docker" "start" "-a" "7c5daab7596f8783d71d952d3d312501eda4a3f533e85600d81ce34881bb6e9a", kill_on_drop: false }`
[INFO] [stderr]     Checking bifurcate v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/nightly_polyfill/step.rs:248:27
[INFO] [stdout]     |
[INFO] [stdout] 248 |                       match Self::try_from(n) {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 385 | / step_integer_impls! {
[INFO] [stdout] 386 | |     narrower than or same width as usize: [u8 i8], [u16 i16], [u32 i32], [u64 i64], [usize isize];
[INFO] [stdout] 387 | |     wider than usize: [u128 i128];
[INFO] [stdout] 388 | | }
[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 `step_integer_impls` (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]    --> src/nightly_polyfill/step.rs:256:27
[INFO] [stdout]     |
[INFO] [stdout] 256 |                       match Self::try_from(n) {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 385 | / step_integer_impls! {
[INFO] [stdout] 386 | |     narrower than or same width as usize: [u8 i8], [u16 i16], [u32 i32], [u64 i64], [usize isize];
[INFO] [stdout] 387 | |     wider than usize: [u128 i128];
[INFO] [stdout] 388 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `step_integer_impls` (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]    --> src/nightly_polyfill/step.rs:284:27
[INFO] [stdout]     |
[INFO] [stdout] 284 |                       match $u_narrower::try_from(n) {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 385 | / step_integer_impls! {
[INFO] [stdout] 386 | |     narrower than or same width as usize: [u8 i8], [u16 i16], [u32 i32], [u64 i64], [usize isize];
[INFO] [stdout] 387 | |     wider than usize: [u128 i128];
[INFO] [stdout] 388 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `step_integer_impls` (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]    --> src/nightly_polyfill/step.rs:306:27
[INFO] [stdout]     |
[INFO] [stdout] 306 |                       match $u_narrower::try_from(n) {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 385 | / step_integer_impls! {
[INFO] [stdout] 386 | |     narrower than or same width as usize: [u8 i8], [u16 i16], [u32 i32], [u64 i64], [usize isize];
[INFO] [stdout] 387 | |     wider than usize: [u128 i128];
[INFO] [stdout] 388 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `step_integer_impls` (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]    --> src/nightly_polyfill/step.rs:248:27
[INFO] [stdout]     |
[INFO] [stdout] 248 |                       match Self::try_from(n) {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 385 | / step_integer_impls! {
[INFO] [stdout] 386 | |     narrower than or same width as usize: [u8 i8], [u16 i16], [u32 i32], [u64 i64], [usize isize];
[INFO] [stdout] 387 | |     wider than usize: [u128 i128];
[INFO] [stdout] 388 | | }
[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 `step_integer_impls` (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]    --> src/nightly_polyfill/step.rs:256:27
[INFO] [stdout]     |
[INFO] [stdout] 256 |                       match Self::try_from(n) {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 385 | / step_integer_impls! {
[INFO] [stdout] 386 | |     narrower than or same width as usize: [u8 i8], [u16 i16], [u32 i32], [u64 i64], [usize isize];
[INFO] [stdout] 387 | |     wider than usize: [u128 i128];
[INFO] [stdout] 388 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `step_integer_impls` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bifurcate` (lib) due to 4 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/nightly_polyfill/step.rs:284:27
[INFO] [stdout]     |
[INFO] [stdout] 284 |                       match $u_narrower::try_from(n) {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 385 | / step_integer_impls! {
[INFO] [stdout] 386 | |     narrower than or same width as usize: [u8 i8], [u16 i16], [u32 i32], [u64 i64], [usize isize];
[INFO] [stdout] 387 | |     wider than usize: [u128 i128];
[INFO] [stdout] 388 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `step_integer_impls` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/nightly_polyfill/step.rs:306:27
[INFO] [stdout]     |
[INFO] [stdout] 306 |                       match $u_narrower::try_from(n) {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 385 | / step_integer_impls! {
[INFO] [stdout] 386 | |     narrower than or same width as usize: [u8 i8], [u16 i16], [u32 i32], [u64 i64], [usize isize];
[INFO] [stdout] 387 | |     wider than usize: [u128 i128];
[INFO] [stdout] 388 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `step_integer_impls` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bifurcate` (lib test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "7c5daab7596f8783d71d952d3d312501eda4a3f533e85600d81ce34881bb6e9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c5daab7596f8783d71d952d3d312501eda4a3f533e85600d81ce34881bb6e9a", kill_on_drop: false }`
[INFO] [stdout] 7c5daab7596f8783d71d952d3d312501eda4a3f533e85600d81ce34881bb6e9a
