[INFO] fetching crate eth_pairings 0.2.0...
[INFO] checking eth_pairings-0.2.0 against try#72f88fc4e9458f89516a0b8b0868f3718aec5b47 for pr-74989
[INFO] extracting crate eth_pairings 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate eth_pairings 0.2.0 on toolchain 72f88fc4e9458f89516a0b8b0868f3718aec5b47
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate eth_pairings 0.2.0
[INFO] finished tweaking crates.io crate eth_pairings 0.2.0
[INFO] tweaked toml for crates.io crate eth_pairings 0.2.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded eth_pairings_repr_derive v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 205da62cdab3cb4cdcc997eed82679a5dc9f8b317b72c8495340a138fec56838
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "205da62cdab3cb4cdcc997eed82679a5dc9f8b317b72c8495340a138fec56838", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "205da62cdab3cb4cdcc997eed82679a5dc9f8b317b72c8495340a138fec56838", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "205da62cdab3cb4cdcc997eed82679a5dc9f8b317b72c8495340a138fec56838", kill_on_drop: false }`
[INFO] [stdout] 205da62cdab3cb4cdcc997eed82679a5dc9f8b317b72c8495340a138fec56838
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0ce2bf95a71a520201d4dc361054d5381317237321576354843a3ff90c47e979
[INFO] running `Command { std: "docker" "start" "-a" "0ce2bf95a71a520201d4dc361054d5381317237321576354843a3ff90c47e979", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.40
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling eth_pairings_repr_derive v0.1.0
[INFO] [stderr]     Checking eth_pairings v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/public_interface/g1_ops.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |         })?;;
[INFO] [stdout]    |             ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/public_interface/g1_ops.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |         })?;;
[INFO] [stdout]     |             ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_scalars`
[INFO] [stdout]   --> src/sliding_window_exp.rs:30:49
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn new(base: &F, one: F, window: usize, num_scalars: usize) -> Self {
[INFO] [stdout]    |                                                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_scalars`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stdout] error[E0583]: file not found for module `test`
[INFO] [stdout]   --> src/lib.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | mod test;
[INFO] [stdout]    | ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: to create the module `test`, create file "src/test.rs"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num_bigint::BigUint`
[INFO] [stdout]    --> src/extension_towers/mod.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 100 |     use num_bigint::BigUint;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num_traits::Num`
[INFO] [stdout]    --> src/extension_towers/mod.rs:101:9
[INFO] [stdout]     |
[INFO] [stdout] 101 |     use num_traits::Num;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num_integer::Integer`
[INFO] [stdout]    --> src/extension_towers/mod.rs:102:9
[INFO] [stdout]     |
[INFO] [stdout] 102 |     use num_integer::Integer;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num_traits::Zero`
[INFO] [stdout]    --> src/extension_towers/mod.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |     use num_traits::Zero;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::field::*`
[INFO] [stdout]    --> src/extension_towers/mod.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |     use crate::field::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::fp::Fp`
[INFO] [stdout]    --> src/extension_towers/mod.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |     use crate::fp::Fp;
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Extension2`, `Fp2`
[INFO] [stdout]    --> src/extension_towers/mod.rs:106:40
[INFO] [stdout]     |
[INFO] [stdout] 106 |     use crate::extension_towers::fp2::{Extension2, Fp2};
[INFO] [stdout]     |                                        ^^^^^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Extension3Over2`, `Fp6`
[INFO] [stdout]    --> src/extension_towers/mod.rs:107:52
[INFO] [stdout]     |
[INFO] [stdout] 107 |     use crate::extension_towers::fp6_as_3_over_2::{Extension3Over2, Fp6};
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Extension2Over3Over2`, `Fp12`
[INFO] [stdout]    --> src/extension_towers/mod.rs:108:59
[INFO] [stdout]     |
[INFO] [stdout] 108 |     use crate::extension_towers::fp12_as_2_over3_over_2::{Fp12, Extension2Over3Over2};
[INFO] [stdout]     |                                                           ^^^^  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::traits::FieldElement`
[INFO] [stdout]    --> src/extension_towers/mod.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |     use crate::traits::FieldElement;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/extension_towers/mod.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::traits::ZeroAndOne`
[INFO] [stdout]    --> src/extension_towers/mod.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 112 |     use crate::traits::ZeroAndOne;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Fp12`
[INFO] [stdout]    --> src/pairings/bls12/mod.rs:413:59
[INFO] [stdout]     |
[INFO] [stdout] 413 |     use crate::extension_towers::fp12_as_2_over3_over_2::{Fp12, Extension2Over3Over2};
[INFO] [stdout]     |                                                           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `CurveParameters`
[INFO] [stdout]    --> src/pairings/bls12/mod.rs:416:30
[INFO] [stdout]     |
[INFO] [stdout] 416 |     use crate::weierstrass::{CurveParameters, CurveOverFpParameters, CurveOverFp2Parameters};
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `CurveParameters`
[INFO] [stdout]    --> src/pairings/bn/mod.rs:517:30
[INFO] [stdout]     |
[INFO] [stdout] 517 |     use crate::weierstrass::{CurveParameters, CurveOverFpParameters, CurveOverFp2Parameters};
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/public_interface/g1_ops.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |         })?;;
[INFO] [stdout]    |             ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/public_interface/g1_ops.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |         })?;;
[INFO] [stdout]     |             ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `CurveParameters`
[INFO] [stdout]   --> src/lib.rs:50:30
[INFO] [stdout]    |
[INFO] [stdout] 50 |     use crate::weierstrass::{CurveParameters, CurveOverFpParameters};
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::representation::ElementRepr`
[INFO] [stdout]    --> src/lib.rs:150:13
[INFO] [stdout]     |
[INFO] [stdout] 150 |         use crate::representation::ElementRepr;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RngCore`
[INFO] [stdout]    --> src/lib.rs:213:20
[INFO] [stdout]     |
[INFO] [stdout] 213 |         use rand::{RngCore, SeedableRng};
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0583`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `eth_pairings`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "0ce2bf95a71a520201d4dc361054d5381317237321576354843a3ff90c47e979", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ce2bf95a71a520201d4dc361054d5381317237321576354843a3ff90c47e979", kill_on_drop: false }`
[INFO] [stdout] 0ce2bf95a71a520201d4dc361054d5381317237321576354843a3ff90c47e979
