[INFO] fetching crate rust-bigint 1.2.0...
[INFO] testing rust-bigint-1.2.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate rust-bigint 1.2.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate rust-bigint 1.2.0
[INFO] finished tweaking crates.io crate rust-bigint 1.2.0
[INFO] tweaked toml for crates.io crate rust-bigint 1.2.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust-bigint 1.2.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 20 packages to latest compatible versions
[INFO] [stderr]       Adding getrandom v0.2.16 (available: v0.3.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rust-gmp-kzen v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 01a7d7005aa730f63c775cdb428dd2ca57a65a690c8a529ecc166633019e764b
[INFO] running `Command { std: "docker" "start" "-a" "01a7d7005aa730f63c775cdb428dd2ca57a65a690c8a529ecc166633019e764b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01a7d7005aa730f63c775cdb428dd2ca57a65a690c8a529ecc166633019e764b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01a7d7005aa730f63c775cdb428dd2ca57a65a690c8a529ecc166633019e764b", kill_on_drop: false }`
[INFO] [stdout] 01a7d7005aa730f63c775cdb428dd2ca57a65a690c8a529ecc166633019e764b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dbda3850e64a77bcc478367ed9aff286f7efff5dad05d32ab44ebf3097cb6ae0
[INFO] running `Command { std: "docker" "start" "-a" "dbda3850e64a77bcc478367ed9aff286f7efff5dad05d32ab44ebf3097cb6ae0", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling rust-gmp-kzen v0.5.1
[INFO] [stderr]    Compiling rust-bigint v1.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/big_gmp.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         drop(self);
[INFO] [stdout]    |         ^^^^^----^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `&mut Mpz`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 21 -         drop(self);
[INFO] [stdout] 21 +         let _ = self;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/big_gmp.rs:29:35
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let bytes: Vec<u8> = value.borrow().into();
[INFO] [stdout]    |                                   ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Mpz` does not implement `Borrow`, so calling `borrow` on `&Mpz` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 29 -         let bytes: Vec<u8> = value.borrow().into();
[INFO] [stdout] 29 +         let bytes: Vec<u8> = value.into();
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to clone `Mpz`, implement `Clone` for it
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rust-gmp-kzen-0.5.1/src/mpz.rs:110:1
[INFO] [stdout]    |
[INFO] [stdout] 110+ #[derive(Clone)]
[INFO] [stdout] 111| pub struct Mpz {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.28s
[INFO] running `Command { std: "docker" "inspect" "dbda3850e64a77bcc478367ed9aff286f7efff5dad05d32ab44ebf3097cb6ae0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbda3850e64a77bcc478367ed9aff286f7efff5dad05d32ab44ebf3097cb6ae0", kill_on_drop: false }`
[INFO] [stdout] dbda3850e64a77bcc478367ed9aff286f7efff5dad05d32ab44ebf3097cb6ae0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab0d77c7252faa79b2742908eae4ff24682499a69b69e5163fedd63115665d73
[INFO] running `Command { std: "docker" "start" "-a" "ab0d77c7252faa79b2742908eae4ff24682499a69b69e5163fedd63115665d73", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/big_gmp.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         drop(self);
[INFO] [stdout]    |         ^^^^^----^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `&mut Mpz`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 21 -         drop(self);
[INFO] [stdout] 21 +         let _ = self;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/big_gmp.rs:29:35
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let bytes: Vec<u8> = value.borrow().into();
[INFO] [stdout]    |                                   ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Mpz` does not implement `Borrow`, so calling `borrow` on `&Mpz` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 29 -         let bytes: Vec<u8> = value.borrow().into();
[INFO] [stdout] 29 +         let bytes: Vec<u8> = value.into();
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to clone `Mpz`, implement `Clone` for it
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rust-gmp-kzen-0.5.1/src/mpz.rs:110:1
[INFO] [stdout]    |
[INFO] [stdout] 110+ #[derive(Clone)]
[INFO] [stdout] 111| pub struct Mpz {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rust-bigint v1.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/big_gmp.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         drop(self);
[INFO] [stdout]    |         ^^^^^----^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `&mut Mpz`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 21 -         drop(self);
[INFO] [stdout] 21 +         let _ = self;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/big_gmp.rs:29:35
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let bytes: Vec<u8> = value.borrow().into();
[INFO] [stdout]    |                                   ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Mpz` does not implement `Borrow`, so calling `borrow` on `&Mpz` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 29 -         let bytes: Vec<u8> = value.borrow().into();
[INFO] [stdout] 29 +         let bytes: Vec<u8> = value.into();
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to clone `Mpz`, implement `Clone` for it
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rust-gmp-kzen-0.5.1/src/mpz.rs:110:1
[INFO] [stdout]    |
[INFO] [stdout] 110+ #[derive(Clone)]
[INFO] [stdout] 111| pub struct Mpz {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.45s
[INFO] running `Command { std: "docker" "inspect" "ab0d77c7252faa79b2742908eae4ff24682499a69b69e5163fedd63115665d73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab0d77c7252faa79b2742908eae4ff24682499a69b69e5163fedd63115665d73", kill_on_drop: false }`
[INFO] [stdout] ab0d77c7252faa79b2742908eae4ff24682499a69b69e5163fedd63115665d73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 252812a054682729e5b2bcd9f3efe53d5a746559317da2b5f0980e9dc132fbcf
[INFO] running `Command { std: "docker" "start" "-a" "252812a054682729e5b2bcd9f3efe53d5a746559317da2b5f0980e9dc132fbcf", kill_on_drop: false }`
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout] 
[INFO] [stderr]   --> src/big_gmp.rs:21:9
[INFO] [stdout] running 12 tests
[INFO] [stderr]    |
[INFO] [stderr] 21 |         drop(self);
[INFO] [stderr]    |         ^^^^^----^
[INFO] [stderr]    |              |
[INFO] [stderr]    |              argument has type `&mut Mpz`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]    |
[INFO] [stderr] 21 -         drop(self);
[INFO] [stderr] 21 +         let _ = self;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stderr]   --> src/big_gmp.rs:29:35
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let bytes: Vec<u8> = value.borrow().into();
[INFO] [stderr]    |                                   ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: the type `Mpz` does not implement `Borrow`, so calling `borrow` on `&Mpz` copies the reference, which does not do anything and can be removed
[INFO] [stderr]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stderr] help: remove this redundant call
[INFO] [stderr]    |
[INFO] [stderr] 29 -         let bytes: Vec<u8> = value.borrow().into();
[INFO] [stderr] 29 +         let bytes: Vec<u8> = value.into();
[INFO] [stderr]    |
[INFO] [stderr] help: if you meant to clone `Mpz`, implement `Clone` for it
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rust-gmp-kzen-0.5.1/src/mpz.rs:110:1
[INFO] [stderr]    |
[INFO] [stderr] 110+ #[derive(Clone)]
[INFO] [stderr] 111| pub struct Mpz {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-bigint` (lib) generated 2 warnings (run `cargo fix --lib -p rust-bigint` to apply 1 suggestion)
[INFO] [stderr] warning: `rust-bigint` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_bigint-808fd7b97b4e1fe1)
[INFO] [stdout] test big_gmp::tests::sample_below_test ... ok
[INFO] [stdout] test big_gmp::tests::test_from_hex ... ok
[INFO] [stdout] test big_gmp::tests::strict_sample_range_test ... ok
[INFO] [stdout] test big_gmp::tests::sample_range_test ... ok
[INFO] [stdout] test big_gmp::tests::strict_sample_test ... ok
[INFO] [stdout] test big_gmp::tests::test_mod_pow ... ok
[INFO] [stdout] test big_gmp::tests::test_mod_mul ... ok
[INFO] [stdout] test big_gmp::tests::test_mod_sub_modulo ... ok
[INFO] [stdout] test big_gmp::tests::test_mod_sub_negative_modulo ... ok
[INFO] [stdout] test big_gmp::tests::test_to_hex ... ok
[INFO] [stdout] test big_gmp::tests::sample_below_zero_test - should panic ... ok
[INFO] [stderr]    Doc-tests rust_bigint
[INFO] [stdout] test big_gmp::tests::invalid_range_test - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 4) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.24s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "252812a054682729e5b2bcd9f3efe53d5a746559317da2b5f0980e9dc132fbcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "252812a054682729e5b2bcd9f3efe53d5a746559317da2b5f0980e9dc132fbcf", kill_on_drop: false }`
[INFO] [stdout] 252812a054682729e5b2bcd9f3efe53d5a746559317da2b5f0980e9dc132fbcf