[INFO] fetching crate arc_number 0.4.0... [INFO] checking arc_number-0.4.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate arc_number 0.4.0 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate arc_number 0.4.0 [INFO] finished tweaking crates.io crate arc_number 0.4.0 [INFO] tweaked toml for crates.io crate arc_number 0.4.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate arc_number 0.4.0 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] [stderr] Updating crates.io index [INFO] [stderr] Locking 24 packages to latest compatible versions [INFO] [stderr] Adding bigdecimal v0.2.2 (available: v0.4.9) [INFO] [stderr] Adding num v0.3.1 (available: v0.4.3) [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] 800764efd1d148f2f89aa0f4c482e0d23b2fe910d763967666e49b5cda765b71 [INFO] running `Command { std: "docker" "start" "-a" "800764efd1d148f2f89aa0f4c482e0d23b2fe910d763967666e49b5cda765b71", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "800764efd1d148f2f89aa0f4c482e0d23b2fe910d763967666e49b5cda765b71", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "800764efd1d148f2f89aa0f4c482e0d23b2fe910d763967666e49b5cda765b71", kill_on_drop: false }` [INFO] [stdout] 800764efd1d148f2f89aa0f4c482e0d23b2fe910d763967666e49b5cda765b71 [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] 500dad783e34ef4a76cbbd2f72db8c15c5a5e46e5fc07087873ce70c5ef3c408 [INFO] running `Command { std: "docker" "start" "-a" "500dad783e34ef4a76cbbd2f72db8c15c5a5e46e5fc07087873ce70c5ef3c408", kill_on_drop: false }` [INFO] [stderr] Compiling num-bigint v0.3.3 [INFO] [stderr] Compiling num-rational v0.3.2 [INFO] [stderr] Checking num-integer v0.1.46 [INFO] [stderr] Checking num-complex v0.3.1 [INFO] [stderr] Checking num-iter v0.1.45 [INFO] [stderr] Checking bigdecimal v0.2.2 [INFO] [stderr] Checking num v0.3.1 [INFO] [stderr] Checking arc_number v0.4.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: irrefutable `if let` pattern [INFO] [stdout] --> src/utils/number_into.rs:19:24 [INFO] [stdout] | [INFO] [stdout] 19 | if let Ok(o) = <$T>::try_from(i) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | integer_convert![BigInt, BigUint]; [INFO] [stdout] | --------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this pattern will always match, so the `if let` is useless [INFO] [stdout] = help: consider replacing the `if let` with a `let` [INFO] [stdout] = note: `#[warn(irrefutable_let_patterns)]` on by default [INFO] [stdout] = note: this warning originates in the macro `integer_convert` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: irrefutable `if let` pattern [INFO] [stdout] --> src/utils/number_into.rs:24:24 [INFO] [stdout] | [INFO] [stdout] 24 | if let Ok(o) = <$T>::try_from(u) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | integer_convert![BigInt, BigUint]; [INFO] [stdout] | --------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this pattern will always match, so the `if let` is useless [INFO] [stdout] = help: consider replacing the `if let` with a `let` [INFO] [stdout] = note: this warning originates in the macro `integer_convert` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: irrefutable `if let` pattern [INFO] [stdout] --> src/utils/number_into.rs:24:24 [INFO] [stdout] | [INFO] [stdout] 24 | if let Ok(o) = <$T>::try_from(u) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | integer_convert![BigInt, BigUint]; [INFO] [stdout] | --------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this pattern will always match, so the `if let` is useless [INFO] [stdout] = help: consider replacing the `if let` with a `let` [INFO] [stdout] = note: this warning originates in the macro `integer_convert` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: irrefutable `if let` pattern [INFO] [stdout] --> src/utils/number_into.rs:24:24 [INFO] [stdout] | [INFO] [stdout] 24 | if let Ok(o) = <$T>::try_from(u) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 40 | integer_convert![u8, u16, u32, u64, u128, usize]; [INFO] [stdout] | ------------------------------------------------ in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this pattern will always match, so the `if let` is useless [INFO] [stdout] = help: consider replacing the `if let` with a `let` [INFO] [stdout] = note: this warning originates in the macro `integer_convert` (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/utils/number_from.rs:20:19 [INFO] [stdout] | [INFO] [stdout] 20 | match usize::try_from(i) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 35 | copied_integer![u8, u16, u32, u64, u128, usize]; [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 `copied_integer` (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/utils/number_from.rs:20:19 [INFO] [stdout] | [INFO] [stdout] 20 | match usize::try_from(i) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 35 | copied_integer![u8, u16, u32, u64, u128, usize]; [INFO] [stdout] | ----------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `copied_integer` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: irrefutable `if let` pattern [INFO] [stdout] --> src/utils/number_into.rs:19:24 [INFO] [stdout] | [INFO] [stdout] 19 | if let Ok(o) = <$T>::try_from(i) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | integer_convert![BigInt, BigUint]; [INFO] [stdout] | --------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this pattern will always match, so the `if let` is useless [INFO] [stdout] = help: consider replacing the `if let` with a `let` [INFO] [stdout] = note: `#[warn(irrefutable_let_patterns)]` on by default [INFO] [stdout] = note: this warning originates in the macro `integer_convert` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: irrefutable `if let` pattern [INFO] [stdout] --> src/utils/number_into.rs:24:24 [INFO] [stdout] | [INFO] [stdout] 24 | if let Ok(o) = <$T>::try_from(u) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | integer_convert![BigInt, BigUint]; [INFO] [stdout] | --------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this pattern will always match, so the `if let` is useless [INFO] [stdout] = help: consider replacing the `if let` with a `let` [INFO] [stdout] = note: this warning originates in the macro `integer_convert` (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/utils/number_from.rs:20:19 [INFO] [stdout] | [INFO] [stdout] 20 | match usize::try_from(i) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 35 | copied_integer![u8, u16, u32, u64, u128, usize]; [INFO] [stdout] | ----------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `copied_integer` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: irrefutable `if let` pattern [INFO] [stdout] --> src/utils/number_into.rs:24:24 [INFO] [stdout] | [INFO] [stdout] 24 | if let Ok(o) = <$T>::try_from(u) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | integer_convert![BigInt, BigUint]; [INFO] [stdout] | --------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this pattern will always match, so the `if let` is useless [INFO] [stdout] = help: consider replacing the `if let` with a `let` [INFO] [stdout] = note: this warning originates in the macro `integer_convert` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/utils/number_into.rs:19:36 [INFO] [stdout] | [INFO] [stdout] 19 | if let Ok(o) = <$T>::try_from(i) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | integer_convert![BigInt, BigUint]; [INFO] [stdout] | --------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `integer_convert` (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/utils/number_into.rs:24:36 [INFO] [stdout] | [INFO] [stdout] 24 | if let Ok(o) = <$T>::try_from(u) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | integer_convert![BigInt, BigUint]; [INFO] [stdout] | --------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `integer_convert` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/utils/number_into.rs:24:36 [INFO] [stdout] | [INFO] [stdout] 24 | if let Ok(o) = <$T>::try_from(u) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | integer_convert![BigInt, BigUint]; [INFO] [stdout] | --------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `integer_convert` (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/utils/number_into.rs:24:36 [INFO] [stdout] | [INFO] [stdout] 24 | if let Ok(o) = <$T>::try_from(u) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 40 | integer_convert![u8, u16, u32, u64, u128, usize]; [INFO] [stdout] | ------------------------------------------------ in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `integer_convert` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: irrefutable `if let` pattern [INFO] [stdout] --> src/utils/number_into.rs:24:24 [INFO] [stdout] | [INFO] [stdout] 24 | if let Ok(o) = <$T>::try_from(u) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 40 | integer_convert![u8, u16, u32, u64, u128, usize]; [INFO] [stdout] | ------------------------------------------------ in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this pattern will always match, so the `if let` is useless [INFO] [stdout] = help: consider replacing the `if let` with a `let` [INFO] [stdout] = note: this warning originates in the macro `integer_convert` (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/utils/number_from.rs:20:19 [INFO] [stdout] | [INFO] [stdout] 20 | match usize::try_from(i) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 35 | copied_integer![u8, u16, u32, u64, u128, usize]; [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 `copied_integer` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `arc_number` (lib) due to 7 previous errors; 4 warnings emitted [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/utils/number_from.rs:20:19 [INFO] [stdout] | [INFO] [stdout] 20 | match usize::try_from(i) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 35 | copied_integer![u8, u16, u32, u64, u128, usize]; [INFO] [stdout] | ----------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `copied_integer` (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/utils/number_from.rs:20:19 [INFO] [stdout] | [INFO] [stdout] 20 | match usize::try_from(i) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 35 | copied_integer![u8, u16, u32, u64, u128, usize]; [INFO] [stdout] | ----------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `copied_integer` (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/utils/number_into.rs:19:36 [INFO] [stdout] | [INFO] [stdout] 19 | if let Ok(o) = <$T>::try_from(i) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | integer_convert![BigInt, BigUint]; [INFO] [stdout] | --------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `integer_convert` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/utils/number_into.rs:24:36 [INFO] [stdout] | [INFO] [stdout] 24 | if let Ok(o) = <$T>::try_from(u) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | integer_convert![BigInt, BigUint]; [INFO] [stdout] | --------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `integer_convert` (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/utils/number_into.rs:24:36 [INFO] [stdout] | [INFO] [stdout] 24 | if let Ok(o) = <$T>::try_from(u) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | integer_convert![BigInt, BigUint]; [INFO] [stdout] | --------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `integer_convert` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/utils/number_into.rs:24:36 [INFO] [stdout] | [INFO] [stdout] 24 | if let Ok(o) = <$T>::try_from(u) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 40 | integer_convert![u8, u16, u32, u64, u128, usize]; [INFO] [stdout] | ------------------------------------------------ in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `integer_convert` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `arc_number` (lib test) due to 7 previous errors; 4 warnings emitted [INFO] running `Command { std: "docker" "inspect" "500dad783e34ef4a76cbbd2f72db8c15c5a5e46e5fc07087873ce70c5ef3c408", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "500dad783e34ef4a76cbbd2f72db8c15c5a5e46e5fc07087873ce70c5ef3c408", kill_on_drop: false }` [INFO] [stdout] 500dad783e34ef4a76cbbd2f72db8c15c5a5e46e5fc07087873ce70c5ef3c408