[INFO] fetching crate impc 0.2.2...
[INFO] checking impc-0.2.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate impc 0.2.2 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate impc 0.2.2
[INFO] finished tweaking crates.io crate impc 0.2.2
[INFO] tweaked toml for crates.io crate impc 0.2.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate impc 0.2.2 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 impc 0.2.2 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] ef152bf51051f817ef46d68adddebb33b14c3ebe7c3c763d8942cfab45a1920b
[INFO] running `Command { std: "docker" "start" "-a" "ef152bf51051f817ef46d68adddebb33b14c3ebe7c3c763d8942cfab45a1920b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef152bf51051f817ef46d68adddebb33b14c3ebe7c3c763d8942cfab45a1920b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef152bf51051f817ef46d68adddebb33b14c3ebe7c3c763d8942cfab45a1920b", kill_on_drop: false }`
[INFO] [stdout] ef152bf51051f817ef46d68adddebb33b14c3ebe7c3c763d8942cfab45a1920b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 66295535ce2c47c5a9aae644dc621f72e250f3bf077cfff9acdb8dcc1e142de9
[INFO] running `Command { std: "docker" "start" "-a" "66295535ce2c47c5a9aae644dc621f72e250f3bf077cfff9acdb8dcc1e142de9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.82
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling serde v1.0.201
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]    Compiling cc v1.0.97
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]    Compiling anyhow v1.0.83
[INFO] [stderr]     Checking rustc-demangle v0.1.24
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling thiserror v1.0.60
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking indent_write v2.2.0
[INFO] [stderr]     Checking joinery v2.1.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking brownstone v3.0.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.61
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking console v0.15.8
[INFO] [stderr]     Checking num-bigint v0.4.5
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking nom-supreme v0.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.201
[INFO] [stderr]    Compiling thiserror-impl v1.0.60
[INFO] [stderr]     Checking better-panic v0.3.0
[INFO] [stderr]     Checking argh_shared v0.1.12
[INFO] [stderr]    Compiling argh_derive v0.1.12
[INFO] [stderr]     Checking argh v0.1.12
[INFO] [stderr]     Checking impc v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<ImpInt<BigUint>, Infallible>
[INFO] [stdout]    --> src/int.rs:115:68
[INFO] [stdout]     |
[INFO] [stdout] 115 |               fn try_from(value: usize) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ____________________________________________________________________^
[INFO] [stdout] 116 | |                 value.try_into().map(Self)
[INFO] [stdout] 117 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout] ...
[INFO] [stdout] 128 |   imp_int_try_from_usize!(u8, u16, u32, u64, u128, BigUint);
[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 `imp_int_try_from_usize` (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<ImpInt<BigUint>, Infallible>
[INFO] [stdout]    --> src/int.rs:116:17
[INFO] [stdout]     |
[INFO] [stdout] 116 |                 value.try_into().map(Self)
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 128 | imp_int_try_from_usize!(u8, u16, u32, u64, u128, BigUint);
[INFO] [stdout]     | --------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `imp_int_try_from_usize` (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<BigUint, Infallible>
[INFO] [stdout]    --> src/int.rs:116:17
[INFO] [stdout]     |
[INFO] [stdout] 116 |                 value.try_into().map(Self)
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 128 | imp_int_try_from_usize!(u8, u16, u32, u64, u128, BigUint);
[INFO] [stdout]     | --------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `imp_int_try_from_usize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/parser/util.rs:50:70
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub fn token<'tok, 'src, T, E>(t: &'tok T) -> impl Parser<&'src [T], &T, E> + Clone
[INFO] [stdout]    |                                    ---- the lifetime is named here   ^^ the same lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'tok`
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub fn token<'tok, 'src, T, E>(t: &'tok T) -> impl Parser<&'src [T], &'tok T, E> + Clone
[INFO] [stdout]    |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `impc` (bin "impc") due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<int::ImpInt<BigUint>, Infallible>
[INFO] [stdout]    --> src/int.rs:115:68
[INFO] [stdout]     |
[INFO] [stdout] 115 |               fn try_from(value: usize) -> Result<Self, Self::Error> {
[INFO] [stdout]     |  ____________________________________________________________________^
[INFO] [stdout] 116 | |                 value.try_into().map(Self)
[INFO] [stdout] 117 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout] ...
[INFO] [stdout] 128 |   imp_int_try_from_usize!(u8, u16, u32, u64, u128, BigUint);
[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 `imp_int_try_from_usize` (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<int::ImpInt<BigUint>, Infallible>
[INFO] [stdout]    --> src/int.rs:116:17
[INFO] [stdout]     |
[INFO] [stdout] 116 |                 value.try_into().map(Self)
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 128 | imp_int_try_from_usize!(u8, u16, u32, u64, u128, BigUint);
[INFO] [stdout]     | --------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `imp_int_try_from_usize` (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<BigUint, Infallible>
[INFO] [stdout]    --> src/int.rs:116:17
[INFO] [stdout]     |
[INFO] [stdout] 116 |                 value.try_into().map(Self)
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 128 | imp_int_try_from_usize!(u8, u16, u32, u64, u128, BigUint);
[INFO] [stdout]     | --------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `imp_int_try_from_usize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/parser/util.rs:50:70
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub fn token<'tok, 'src, T, E>(t: &'tok T) -> impl Parser<&'src [T], &T, E> + Clone
[INFO] [stdout]    |                                    ---- the lifetime is named here   ^^ the same lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'tok`
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub fn token<'tok, 'src, T, E>(t: &'tok T) -> impl Parser<&'src [T], &'tok T, E> + Clone
[INFO] [stdout]    |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `impc` (bin "impc" test) due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "66295535ce2c47c5a9aae644dc621f72e250f3bf077cfff9acdb8dcc1e142de9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66295535ce2c47c5a9aae644dc621f72e250f3bf077cfff9acdb8dcc1e142de9", kill_on_drop: false }`
[INFO] [stdout] 66295535ce2c47c5a9aae644dc621f72e250f3bf077cfff9acdb8dcc1e142de9
