[INFO] crate ethereum-bigint 0.2.9 is already in cache
[INFO] checking ethereum-bigint-0.2.9 against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] extracting crate ethereum-bigint 0.2.9 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate ethereum-bigint 0.2.9 on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate ethereum-bigint 0.2.9
[INFO] finished tweaking crates.io crate ethereum-bigint 0.2.9
[INFO] tweaked toml for crates.io crate ethereum-bigint 0.2.9 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c64c4a3d25d8273244e14c498698aabe55adccb8a11c0ba91f0fcdde18015e20
[INFO] running `"docker" "start" "-a" "c64c4a3d25d8273244e14c498698aabe55adccb8a11c0ba91f0fcdde18015e20"`
[INFO] [stderr]     Checking elastic-array-plus v0.9.1
[INFO] [stderr]     Checking ethereum-hexutil v0.2.3
[INFO] [stderr]     Checking ethereum-rlp v0.2.3
[INFO] [stderr]     Checking ethereum-bigint v0.2.9 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/uint/mod.rs:1149:8
[INFO] [stderr]      |
[INFO] [stderr] 1149 |                             try!(write!(f, "{:x}", nibble));
[INFO] [stderr]      |                             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 1183 | construct_uint!(U512, 8);
[INFO] [stderr]      | ------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/uint/mod.rs:1166:8
[INFO] [stderr]      |
[INFO] [stderr] 1166 |                             try!(write!(f, "{:X}", nibble));
[INFO] [stderr]      |                             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 1183 | construct_uint!(U512, 8);
[INFO] [stderr]      | ------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/uint/mod.rs:1149:8
[INFO] [stderr]      |
[INFO] [stderr] 1149 |                             try!(write!(f, "{:x}", nibble));
[INFO] [stderr]      |                             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 1184 | construct_uint!(U256, 4);
[INFO] [stderr]      | ------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/uint/mod.rs:1166:8
[INFO] [stderr]      |
[INFO] [stderr] 1166 |                             try!(write!(f, "{:X}", nibble));
[INFO] [stderr]      |                             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 1184 | construct_uint!(U256, 4);
[INFO] [stderr]      | ------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/uint/mod.rs:1149:8
[INFO] [stderr]      |
[INFO] [stderr] 1149 |                             try!(write!(f, "{:x}", nibble));
[INFO] [stderr]      |                             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 1185 | construct_uint!(U128, 2);
[INFO] [stderr]      | ------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/uint/mod.rs:1166:8
[INFO] [stderr]      |
[INFO] [stderr] 1166 |                             try!(write!(f, "{:X}", nibble));
[INFO] [stderr]      |                             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 1185 | construct_uint!(U128, 2);
[INFO] [stderr]      | ------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/uint/mod.rs:1149:8
[INFO] [stderr]      |
[INFO] [stderr] 1149 |                             try!(write!(f, "{:x}", nibble));
[INFO] [stderr]      |                             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 1183 | construct_uint!(U512, 8);
[INFO] [stderr]      | ------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/uint/mod.rs:1166:8
[INFO] [stderr]      |
[INFO] [stderr] 1166 |                             try!(write!(f, "{:X}", nibble));
[INFO] [stderr]      |                             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 1183 | construct_uint!(U512, 8);
[INFO] [stderr]      | ------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/uint/mod.rs:1149:8
[INFO] [stderr]      |
[INFO] [stderr] 1149 |                             try!(write!(f, "{:x}", nibble));
[INFO] [stderr]      |                             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 1184 | construct_uint!(U256, 4);
[INFO] [stderr]      | ------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/uint/mod.rs:1166:8
[INFO] [stderr]      |
[INFO] [stderr] 1166 |                             try!(write!(f, "{:X}", nibble));
[INFO] [stderr]      |                             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 1184 | construct_uint!(U256, 4);
[INFO] [stderr]      | ------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/uint/mod.rs:1149:8
[INFO] [stderr]      |
[INFO] [stderr] 1149 |                             try!(write!(f, "{:x}", nibble));
[INFO] [stderr]      |                             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 1185 | construct_uint!(U128, 2);
[INFO] [stderr]      | ------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/uint/mod.rs:1166:8
[INFO] [stderr]      |
[INFO] [stderr] 1166 |                             try!(write!(f, "{:X}", nibble));
[INFO] [stderr]      |                             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 1185 | construct_uint!(U128, 2);
[INFO] [stderr]      | ------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `H256FastMap`
[INFO] [stderr]    --> src/hash/mod.rs:541:1
[INFO] [stderr]     |
[INFO] [stderr] 541 | pub type H256FastMap<T> = Map<H256, T, BuildHasherDefault<PlainHasher>>;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `H256FastSet`
[INFO] [stderr]    --> src/hash/mod.rs:544:1
[INFO] [stderr]     |
[INFO] [stderr] 544 | pub type H256FastSet = Set<H256, BuildHasherDefault<PlainHasher>>;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `H256FastMap`
[INFO] [stderr]    --> src/hash/mod.rs:541:1
[INFO] [stderr]     |
[INFO] [stderr] 541 | pub type H256FastMap<T> = Map<H256, T, BuildHasherDefault<PlainHasher>>;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `H256FastSet`
[INFO] [stderr]    --> src/hash/mod.rs:544:1
[INFO] [stderr]     |
[INFO] [stderr] 544 | pub type H256FastSet = Set<H256, BuildHasherDefault<PlainHasher>>;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unused arithmetic operation that must be used
[INFO] [stderr]    --> src/uint/tests.rs:334:5
[INFO] [stderr]     |
[INFO] [stderr] 334 | /     U128::from_str("ffffffffffffffffffffffffffffffff").unwrap()
[INFO] [stderr] 335 | |         +
[INFO] [stderr] 336 | |         U128::from_str("ffffffffffffffffffffffffffffffff").unwrap();
[INFO] [stderr]     | |___________________________________________________________________^
[INFO] [stderr]     |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/lib.rs:2:29
[INFO] [stderr]     |
[INFO] [stderr] 2   |         unused_comparisons, unused_must_use,
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: unused arithmetic operation that must be used
[INFO] [stderr]    --> src/uint/tests.rs:370:5
[INFO] [stderr]     |
[INFO] [stderr] 370 | /     U256::from_str("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff").unwrap()
[INFO] [stderr] 371 | |         *
[INFO] [stderr] 372 | |         U256::from_str("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff").unwrap();
[INFO] [stderr]     | |___________________________________________________________________________________________________^
[INFO] [stderr] 
[INFO] [stderr] error: unused arithmetic operation that must be used
[INFO] [stderr]    --> src/uint/tests.rs:389:5
[INFO] [stderr]     |
[INFO] [stderr] 389 | /     U256::from_str("0").unwrap()
[INFO] [stderr] 390 | |         -
[INFO] [stderr] 391 | |         U256::from_str("1").unwrap();
[INFO] [stderr]     | |____________________________________^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `ethereum-bigint`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "c64c4a3d25d8273244e14c498698aabe55adccb8a11c0ba91f0fcdde18015e20"`
[INFO] running `"docker" "rm" "-f" "c64c4a3d25d8273244e14c498698aabe55adccb8a11c0ba91f0fcdde18015e20"`
[INFO] [stdout] c64c4a3d25d8273244e14c498698aabe55adccb8a11c0ba91f0fcdde18015e20
