[INFO] fetching crate smt2proxy 0.2.4...
[INFO] testing smt2proxy-0.2.4 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate smt2proxy 0.2.4 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate smt2proxy 0.2.4
[INFO] finished tweaking crates.io crate smt2proxy 0.2.4
[INFO] tweaked toml for crates.io crate smt2proxy 0.2.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate smt2proxy 0.2.4 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate smt2proxy 0.2.4 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" "+b83b707f97d809763b7861afa7638871f3339a33" "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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6c6d1de1e478a23cd6b95684a410e56044d9d66801ba263d418172680a2c9b0a
[INFO] running `Command { std: "docker" "start" "-a" "6c6d1de1e478a23cd6b95684a410e56044d9d66801ba263d418172680a2c9b0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c6d1de1e478a23cd6b95684a410e56044d9d66801ba263d418172680a2c9b0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c6d1de1e478a23cd6b95684a410e56044d9d66801ba263d418172680a2c9b0a", kill_on_drop: false }`
[INFO] [stdout] 6c6d1de1e478a23cd6b95684a410e56044d9d66801ba263d418172680a2c9b0a
[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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4cb6a0ce40bc9573aa409282a52898c00ce4b8b0c5f0cc5f2bfa3ae8191c180e
[INFO] running `Command { std: "docker" "start" "-a" "4cb6a0ce40bc9573aa409282a52898c00ce4b8b0c5f0cc5f2bfa3ae8191c180e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-bigint v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling fst v0.4.7
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling permutation_iterator v0.1.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling structopt-derive v0.4.15
[INFO] [stderr]    Compiling strum_macros v0.21.1
[INFO] [stderr]    Compiling pomelo-impl v0.1.5
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling structopt v0.3.22
[INFO] [stderr]    Compiling strum v0.21.0
[INFO] [stderr]    Compiling pomelo v0.1.5
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/num-bigint-0.3.2/src/biguint/convert.rs:70:19
[INFO] [stdout]    |
[INFO] [stdout] 70 |         .div_ceil(&big_digit::BITS.into())
[INFO] [stdout]    |          -------- ^^^^^^^^^^^^^^^^^^^^^^^ expected `u64`, found `&_`
[INFO] [stdout]    |          |
[INFO] [stdout]    |          arguments to this method are incorrect
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected type `u64`
[INFO] [stdout]            found reference `&_`
[INFO] [stdout] note: method defined here
[INFO] [stdout]   --> /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/num/mod.rs:1151:5
[INFO] [stdout]    = note: this error originates in the macro `uint_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider removing the borrow
[INFO] [stdout]    |
[INFO] [stdout] 70 -         .div_ceil(&big_digit::BITS.into())
[INFO] [stdout] 70 +         .div_ceil(big_digit::BITS.into())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/num-bigint-0.3.2/src/biguint/convert.rs:585:19
[INFO] [stdout]     |
[INFO] [stdout] 585 |         .div_ceil(&u64::from(bits))
[INFO] [stdout]     |          -------- ^^^^^^^^^^^^^^^^ expected `u64`, found `&u64`
[INFO] [stdout]     |          |
[INFO] [stdout]     |          arguments to this method are incorrect
[INFO] [stdout]     |
[INFO] [stdout] note: method defined here
[INFO] [stdout]    --> /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/num/mod.rs:1151:5
[INFO] [stdout]     = note: this error originates in the macro `uint_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider removing the borrow
[INFO] [stdout]     |
[INFO] [stdout] 585 -         .div_ceil(&u64::from(bits))
[INFO] [stdout] 585 +         .div_ceil(u64::from(bits))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/num-bigint-0.3.2/src/biguint/convert.rs:613:19
[INFO] [stdout]     |
[INFO] [stdout] 613 |         .div_ceil(&u64::from(bits))
[INFO] [stdout]     |          -------- ^^^^^^^^^^^^^^^^ expected `u64`, found `&u64`
[INFO] [stdout]     |          |
[INFO] [stdout]     |          arguments to this method are incorrect
[INFO] [stdout]     |
[INFO] [stdout] note: method defined here
[INFO] [stdout]    --> /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/num/mod.rs:1151:5
[INFO] [stdout]     = note: this error originates in the macro `uint_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider removing the borrow
[INFO] [stdout]     |
[INFO] [stdout] 613 -         .div_ceil(&u64::from(bits))
[INFO] [stdout] 613 +         .div_ceil(u64::from(bits))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/num-bigint-0.3.2/src/biguint/serde.rs:92:36
[INFO] [stdout]    |
[INFO] [stdout] 92 |         let len = u32_len.div_ceil(&2);
[INFO] [stdout]    |                           -------- ^^ expected `usize`, found `&{integer}`
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           arguments to this method are incorrect
[INFO] [stdout]    |
[INFO] [stdout] note: method defined here
[INFO] [stdout]   --> /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/num/mod.rs:1248:5
[INFO] [stdout]    = note: this error originates in the macro `uint_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider removing the borrow
[INFO] [stdout]    |
[INFO] [stdout] 92 -         let len = u32_len.div_ceil(&2);
[INFO] [stdout] 92 +         let len = u32_len.div_ceil(2);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/num-bigint-0.3.2/src/biguint.rs:393:54
[INFO] [stdout]     |
[INFO] [stdout] 393 |                 let root_scale = extra_bits.div_ceil(&n64);
[INFO] [stdout]     |                                             -------- ^^^^ expected `u64`, found `&u64`
[INFO] [stdout]     |                                             |
[INFO] [stdout]     |                                             arguments to this method are incorrect
[INFO] [stdout]     |
[INFO] [stdout] note: method defined here
[INFO] [stdout]    --> /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/num/mod.rs:1151:5
[INFO] [stdout]     = note: this error originates in the macro `uint_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider removing the borrow
[INFO] [stdout]     |
[INFO] [stdout] 393 -                 let root_scale = extra_bits.div_ceil(&n64);
[INFO] [stdout] 393 +                 let root_scale = extra_bits.div_ceil(n64);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `num-bigint` (lib) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "4cb6a0ce40bc9573aa409282a52898c00ce4b8b0c5f0cc5f2bfa3ae8191c180e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cb6a0ce40bc9573aa409282a52898c00ce4b8b0c5f0cc5f2bfa3ae8191c180e", kill_on_drop: false }`
[INFO] [stdout] 4cb6a0ce40bc9573aa409282a52898c00ce4b8b0c5f0cc5f2bfa3ae8191c180e