[INFO] fetching crate iter_num_tools 0.7.1...
[INFO] checking iter_num_tools-0.7.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate iter_num_tools 0.7.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate iter_num_tools 0.7.1
[INFO] finished tweaking crates.io crate iter_num_tools 0.7.1
[INFO] tweaked toml for crates.io crate iter_num_tools 0.7.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate iter_num_tools 0.7.1 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 75 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.4.0 (available: v0.7.0)
[INFO] [stderr]       Adding itertools v0.10.5 (available: v0.14.0)
[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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] b85d9434df2f8e0138ce0f11dc4e422336194751d4edaba2c067030d51b32213
[INFO] running `Command { std: "docker" "start" "-a" "b85d9434df2f8e0138ce0f11dc4e422336194751d4edaba2c067030d51b32213", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b85d9434df2f8e0138ce0f11dc4e422336194751d4edaba2c067030d51b32213", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b85d9434df2f8e0138ce0f11dc4e422336194751d4edaba2c067030d51b32213", kill_on_drop: false }`
[INFO] [stdout] b85d9434df2f8e0138ce0f11dc4e422336194751d4edaba2c067030d51b32213
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 404bd228f48a173433959a0f2a6308e756947aa452acd2ba4cb00b759f9e2437
[INFO] running `Command { std: "docker" "start" "-a" "404bd228f48a173433959a0f2a6308e756947aa452acd2ba4cb00b759f9e2437", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking os_str_bytes v6.6.1
[INFO] [stderr]     Checking textwrap v0.16.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking array-bin-ops v0.1.6
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking clap v3.2.25
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]     Checking itertools-num v0.1.3
[INFO] [stderr]     Checking iter_num_tools v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `iter_num_tools` (lib) due to 2 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/step.rs:44:27
[INFO] [stdout]     |
[INFO] [stdout]  44 |                       match Self::try_from(n) {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 134 | / step_integer_impls! {
[INFO] [stdout] 135 | |     narrower than or same width as usize: [u8 i8], [u16 i16], [u32 i32], [u64 i64], [usize isize];
[INFO] [stdout] 136 | |     wider than usize: [u128 i128];
[INFO] [stdout] 137 | | }
[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] [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/step.rs:69:27
[INFO] [stdout]     |
[INFO] [stdout]  69 |                       match $u_narrower::try_from(n) {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 134 | / step_integer_impls! {
[INFO] [stdout] 135 | |     narrower than or same width as usize: [u8 i8], [u16 i16], [u32 i32], [u64 i64], [usize isize];
[INFO] [stdout] 136 | |     wider than usize: [u128 i128];
[INFO] [stdout] 137 | | }
[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] running `Command { std: "docker" "inspect" "404bd228f48a173433959a0f2a6308e756947aa452acd2ba4cb00b759f9e2437", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "404bd228f48a173433959a0f2a6308e756947aa452acd2ba4cb00b759f9e2437", kill_on_drop: false }`
[INFO] [stdout] 404bd228f48a173433959a0f2a6308e756947aa452acd2ba4cb00b759f9e2437
