[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 [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 [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 [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 [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 [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 [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 [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 [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