[INFO] fetching crate upon 0.10.0...
[INFO] checking upon-0.10.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate upon 0.10.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate upon 0.10.0
[INFO] finished tweaking crates.io crate upon 0.10.0
[INFO] tweaked toml for crates.io crate upon 0.10.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate upon 0.10.0 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] crate crates.io crate upon 0.10.0 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] f6ed419dbcdc43349a14c1797cb5c0e02bb7a1db75a8e528492f4590956a583f
[INFO] running `Command { std: "docker" "start" "-a" "f6ed419dbcdc43349a14c1797cb5c0e02bb7a1db75a8e528492f4590956a583f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6ed419dbcdc43349a14c1797cb5c0e02bb7a1db75a8e528492f4590956a583f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6ed419dbcdc43349a14c1797cb5c0e02bb7a1db75a8e528492f4590956a583f", kill_on_drop: false }`
[INFO] [stdout] f6ed419dbcdc43349a14c1797cb5c0e02bb7a1db75a8e528492f4590956a583f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] eaf4e8748d8dfe5b16a31f04b08902fac038228a6a1d6656dadae1168adbb28c
[INFO] running `Command { std: "docker" "start" "-a" "eaf4e8748d8dfe5b16a31f04b08902fac038228a6a1d6656dadae1168adbb28c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling serde_derive v1.0.217
[INFO] [stderr]     Checking serde v1.0.217
[INFO] [stderr]     Checking upon v0.10.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<i64, Infallible>
[INFO] [stdout]   --> src/functions/args.rs:67:29
[INFO] [stdout]    |
[INFO] [stdout] 67 |                             i.try_into().map_err(|_| Error::TryFromInt(stringify!($ty), i))
[INFO] [stdout]    |                             ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 | impl_for_int! { u8 u16 u32 u64 u128 usize i8 i16 i32 i64 isize i128 }
[INFO] [stdout]    | --------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the macro `impl_for_int` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<i128, Infallible>
[INFO] [stdout]   --> src/functions/args.rs:67:29
[INFO] [stdout]    |
[INFO] [stdout] 67 |                             i.try_into().map_err(|_| Error::TryFromInt(stringify!($ty), i))
[INFO] [stdout]    |                             ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 | impl_for_int! { u8 u16 u32 u64 u128 usize i8 i16 i32 i64 isize i128 }
[INFO] [stdout]    | --------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `impl_for_int` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `upon` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<i64, Infallible>
[INFO] [stdout]   --> src/functions/args.rs:67:29
[INFO] [stdout]    |
[INFO] [stdout] 67 |                             i.try_into().map_err(|_| Error::TryFromInt(stringify!($ty), i))
[INFO] [stdout]    |                             ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 | impl_for_int! { u8 u16 u32 u64 u128 usize i8 i16 i32 i64 isize i128 }
[INFO] [stdout]    | --------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the macro `impl_for_int` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<i128, Infallible>
[INFO] [stdout]   --> src/functions/args.rs:67:29
[INFO] [stdout]    |
[INFO] [stdout] 67 |                             i.try_into().map_err(|_| Error::TryFromInt(stringify!($ty), i))
[INFO] [stdout]    |                             ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 | impl_for_int! { u8 u16 u32 u64 u128 usize i8 i16 i32 i64 isize i128 }
[INFO] [stdout]    | --------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `impl_for_int` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `upon` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "eaf4e8748d8dfe5b16a31f04b08902fac038228a6a1d6656dadae1168adbb28c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eaf4e8748d8dfe5b16a31f04b08902fac038228a6a1d6656dadae1168adbb28c", kill_on_drop: false }`
[INFO] [stdout] eaf4e8748d8dfe5b16a31f04b08902fac038228a6a1d6656dadae1168adbb28c