[INFO] fetching crate imagnum 0.2.29...
[INFO] checking imagnum-0.2.29 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate imagnum 0.2.29 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate imagnum 0.2.29
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate imagnum 0.2.29
[INFO] tweaked toml for crates.io crate imagnum 0.2.29 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate imagnum 0.2.29 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 crates.io crate imagnum 0.2.29 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 778c440ffcf82faa88fbd030977ae8b172ee009adbd703599a53002a3d0aeb5e
[INFO] running `Command { std: "docker" "start" "-a" "778c440ffcf82faa88fbd030977ae8b172ee009adbd703599a53002a3d0aeb5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "778c440ffcf82faa88fbd030977ae8b172ee009adbd703599a53002a3d0aeb5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "778c440ffcf82faa88fbd030977ae8b172ee009adbd703599a53002a3d0aeb5e", kill_on_drop: false }`
[INFO] [stdout] 778c440ffcf82faa88fbd030977ae8b172ee009adbd703599a53002a3d0aeb5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] cfa526b121748ee680f83acd10df0782ef9f51f01e5dfac78456bd4a6ef9a251
[INFO] running `Command { std: "docker" "start" "-a" "cfa526b121748ee680f83acd10df0782ef9f51f01e5dfac78456bd4a6ef9a251", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling bigdecimal v0.4.9
[INFO] [stderr]    Compiling pastey v0.1.1
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking imagnum v0.2.29 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<i128, Infallible>
[INFO] [stdout]     --> core/impls.rs:1704:33
[INFO] [stdout]      |
[INFO] [stdout] 1704 |                                 val.try_into().map_err(|_| ERR_INVALID_FORMAT)
[INFO] [stdout]      |                                 ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1780 | impl_from_for_int!(i8, u8, i16, u16, i32, u32, i64, u64, i128, u128, isize, 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 `impl_from_for_int` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `imagnum` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<i128, Infallible>
[INFO] [stdout]     --> core/impls.rs:1704:33
[INFO] [stdout]      |
[INFO] [stdout] 1704 |                                 val.try_into().map_err(|_| ERR_INVALID_FORMAT)
[INFO] [stdout]      |                                 ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1780 | impl_from_for_int!(i8, u8, i16, u16, i32, u32, i64, u64, i128, u128, isize, 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 `impl_from_for_int` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `imagnum` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "cfa526b121748ee680f83acd10df0782ef9f51f01e5dfac78456bd4a6ef9a251", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfa526b121748ee680f83acd10df0782ef9f51f01e5dfac78456bd4a6ef9a251", kill_on_drop: false }`
[INFO] [stdout] cfa526b121748ee680f83acd10df0782ef9f51f01e5dfac78456bd4a6ef9a251
