[INFO] fetching crate darktoken 0.0.6...
[INFO] testing darktoken-0.0.6 against beta-2023-04-20 for beta-1.70-1
[INFO] extracting crate darktoken 0.0.6 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate darktoken 0.0.6 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate darktoken 0.0.6
[INFO] finished tweaking crates.io crate darktoken 0.0.6
[INFO] tweaked toml for crates.io crate darktoken 0.0.6 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate darktoken 0.0.6 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" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 0299b062c6663d3df57f2dc481e2aae233edfa3a9732c9da1abee534fb7e628d
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[INFO] [stderr]    Compiling getrandom v0.1.14
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[INFO] [stderr]    Compiling bls12_381 v0.1.1
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling rand_core v0.5.1
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[INFO] [stderr]    Compiling darktoken v0.0.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.36s
[INFO] running `Command { std: "docker" "inspect" "0299b062c6663d3df57f2dc481e2aae233edfa3a9732c9da1abee534fb7e628d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0299b062c6663d3df57f2dc481e2aae233edfa3a9732c9da1abee534fb7e628d", kill_on_drop: false }`
[INFO] [stdout] 0299b062c6663d3df57f2dc481e2aae233edfa3a9732c9da1abee534fb7e628d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd35070c2359ce941d824e2b74b7deb7eea401822664248087fa7dd11aef5b46
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[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling serde v1.0.104
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[INFO] [stderr]    Compiling dirs-sys v0.3.4
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[INFO] [stderr]    Compiling itoa v0.4.5
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[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling serde_json v1.0.48
[INFO] [stderr]    Compiling darktoken v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `from_string` is never used
[INFO] [stdout]   --> examples/test.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl Foo {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 39 |     fn from_string(&self, serialized: &str) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `App`, `Arg`, `SubCommand`
[INFO] [stdout]  --> examples/darktoken.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use clap::{App, Arg, SubCommand};
[INFO] [stdout]   |            ^^^  ^^^  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> examples/darktoken.rs:951:5
[INFO] [stdout]     |
[INFO] [stdout] 949 |       return;
[INFO] [stdout]     |       ------ any code following this expression is unreachable
[INFO] [stdout] 950 |
[INFO] [stdout] 951 | /     let settings = CoconutSettings {
[INFO] [stdout] 952 | |         attributes: 2,
[INFO] [stdout] 953 | |
[INFO] [stdout] 954 | |         threshold: 5,
[INFO] [stdout] 955 | |         total: 7,
[INFO] [stdout] 956 | |     };
[INFO] [stdout]     | |______^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sign_request`
[INFO] [stdout]    --> examples/darktoken.rs:116:13
[INFO] [stdout]     |
[INFO] [stdout] 116 |         let sign_request = self.coconut.make_blind_sign_request(
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sign_request`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token1`
[INFO] [stdout]    --> examples/darktoken.rs:986:13
[INFO] [stdout]     |
[INFO] [stdout] 986 |         Ok((token1, token2)) => println!("split worked."),
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_token1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token2`
[INFO] [stdout]    --> examples/darktoken.rs:986:21
[INFO] [stdout]     |
[INFO] [stdout] 986 |         Ok((token1, token2)) => println!("split worked."),
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_token2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `deposit_new` is never used
[INFO] [stdout]    --> examples/darktoken.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 96  | impl<'a> Wallet<'a> {
[INFO] [stdout]     | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 108 |     fn deposit_new(&self, value: u64) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CommitProofBuilder` is never constructed
[INFO] [stdout]    --> examples/darktoken.rs:374:8
[INFO] [stdout]     |
[INFO] [stdout] 374 | struct CommitProofBuilder<'a, R: darktoken::RngInstance> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CommitProof` is never constructed
[INFO] [stdout]    --> examples/darktoken.rs:392:8
[INFO] [stdout]     |
[INFO] [stdout] 392 | struct CommitProof {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `commitments`, and `finish` are never used
[INFO] [stdout]    --> examples/darktoken.rs:398:8
[INFO] [stdout]     |
[INFO] [stdout] 397 | impl<'a, R: darktoken::RngInstance> CommitProofBuilder<'a, R> {
[INFO] [stdout]     | ------------------------------------------------------------- associated items in this implementation
[INFO] [stdout] 398 |     fn new(
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 412 |     fn commitments(&self) -> Box<dyn darktoken::ProofCommitments + 'a> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 422 |     fn finish(&self, challenge: &bls::Scalar) -> CommitProof {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `commitments` is never used
[INFO] [stdout]    --> examples/darktoken.rs:441:8
[INFO] [stdout]     |
[INFO] [stdout] 440 | impl CommitProof {
[INFO] [stdout]     | ---------------- method in this implementation
[INFO] [stdout] 441 |     fn commitments<'a, R: darktoken::RngInstance>(
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> examples/darktoken.rs:779:9
[INFO] [stdout]     |
[INFO] [stdout] 779 |         fs::remove_file(&token_path);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 779 |         let _ = fs::remove_file(&token_path);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> examples/darktoken.rs:807:13
[INFO] [stdout]     |
[INFO] [stdout] 807 |             fs::remove_file(&token_path);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 807 |             let _ = fs::remove_file(&token_path);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.92s
[INFO] running `Command { std: "docker" "inspect" "bd35070c2359ce941d824e2b74b7deb7eea401822664248087fa7dd11aef5b46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd35070c2359ce941d824e2b74b7deb7eea401822664248087fa7dd11aef5b46", kill_on_drop: false }`
[INFO] [stdout] bd35070c2359ce941d824e2b74b7deb7eea401822664248087fa7dd11aef5b46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] aa704879b6132ad7993800bc6cb911a66b83fad6a8c7214da97d0eb8f1886142
[INFO] running `Command { std: "docker" "start" "-a" "aa704879b6132ad7993800bc6cb911a66b83fad6a8c7214da97d0eb8f1886142", kill_on_drop: false }`
[INFO] [stderr] warning: method `from_string` is never used
[INFO] [stderr]   --> examples/test.rs:39:8
[INFO] [stderr]    |
[INFO] [stderr] 31 | impl Foo {
[INFO] [stderr]    | -------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 39 |     fn from_string(&self, serialized: &str) -> Self {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `App`, `Arg`, `SubCommand`
[INFO] [stderr]  --> examples/darktoken.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | use clap::{App, Arg, SubCommand};
[INFO] [stderr]   |            ^^^  ^^^  ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> examples/darktoken.rs:951:5
[INFO] [stderr]     |
[INFO] [stderr] 949 |       return;
[INFO] [stderr]     |       ------ any code following this expression is unreachable
[INFO] [stderr] 950 |
[INFO] [stderr] 951 | /     let settings = CoconutSettings {
[INFO] [stderr] 952 | |         attributes: 2,
[INFO] [stderr] 953 | |
[INFO] [stderr] 954 | |         threshold: 5,
[INFO] [stderr] 955 | |         total: 7,
[INFO] [stderr] 956 | |     };
[INFO] [stderr]     | |______^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sign_request`
[INFO] [stderr]    --> examples/darktoken.rs:116:13
[INFO] [stderr]     |
[INFO] [stderr] 116 |         let sign_request = self.coconut.make_blind_sign_request(
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sign_request`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `token1`
[INFO] [stderr]    --> examples/darktoken.rs:986:13
[INFO] [stderr]     |
[INFO] [stderr] 986 |         Ok((token1, token2)) => println!("split worked."),
[INFO] [stderr]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_token1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `token2`
[INFO] [stderr]    --> examples/darktoken.rs:986:21
[INFO] [stderr]     |
[INFO] [stderr] 986 |         Ok((token1, token2)) => println!("split worked."),
[INFO] [stderr]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_token2`
[INFO] [stderr] 
[INFO] [stderr] warning: method `deposit_new` is never used
[INFO] [stderr]    --> examples/darktoken.rs:108:8
[INFO] [stderr]     |
[INFO] [stderr] 96  | impl<'a> Wallet<'a> {
[INFO] [stderr]     | ------------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 108 |     fn deposit_new(&self, value: u64) {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `CommitProofBuilder` is never constructed
[INFO] [stderr]    --> examples/darktoken.rs:374:8
[INFO] [stderr]     |
[INFO] [stderr] 374 | struct CommitProofBuilder<'a, R: darktoken::RngInstance> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `CommitProof` is never constructed
[INFO] [stderr]    --> examples/darktoken.rs:392:8
[INFO] [stderr]     |
[INFO] [stderr] 392 | struct CommitProof {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `commitments`, and `finish` are never used
[INFO] [stderr]    --> examples/darktoken.rs:398:8
[INFO] [stderr]     |
[INFO] [stderr] 397 | impl<'a, R: darktoken::RngInstance> CommitProofBuilder<'a, R> {
[INFO] [stderr]     | ------------------------------------------------------------- associated items in this implementation
[INFO] [stderr] 398 |     fn new(
[INFO] [stderr]     |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 412 |     fn commitments(&self) -> Box<dyn darktoken::ProofCommitments + 'a> {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 422 |     fn finish(&self, challenge: &bls::Scalar) -> CommitProof {
[INFO] [stderr]     |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `commitments` is never used
[INFO] [stderr]    --> examples/darktoken.rs:441:8
[INFO] [stderr]     |
[INFO] [stderr] 440 | impl CommitProof {
[INFO] [stderr]     | ---------------- method in this implementation
[INFO] [stderr] 441 |     fn commitments<'a, R: darktoken::RngInstance>(
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> examples/darktoken.rs:779:9
[INFO] [stderr]     |
[INFO] [stderr] 779 |         fs::remove_file(&token_path);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 779 |         let _ = fs::remove_file(&token_path);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> examples/darktoken.rs:807:13
[INFO] [stderr]     |
[INFO] [stderr] 807 |             fs::remove_file(&token_path);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 807 |             let _ = fs::remove_file(&token_path);
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `darktoken` (example "test") generated 1 warning
[INFO] [stderr] warning: `darktoken` (example "darktoken") generated 12 warnings (run `cargo fix --example "darktoken"` to apply 4 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/darktoken-9b893218c81811cf)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test hashable::test_hash_to_point_g1affine ... ok
[INFO] [stdout] test parameters::test_parameters ... ok
[INFO] [stdout] test proofs::tests::test_signature_request_proof ... ok
[INFO] [stdout] test proofs::tests::test_credential_proof ... ok
[INFO] [stdout] test coconut::tests::test_multiparty_keygen ... ok
[INFO] [stdout] test coconut::tests::test_multiparty_coconut ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.10s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests darktoken
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "aa704879b6132ad7993800bc6cb911a66b83fad6a8c7214da97d0eb8f1886142", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa704879b6132ad7993800bc6cb911a66b83fad6a8c7214da97d0eb8f1886142", kill_on_drop: false }`
[INFO] [stdout] aa704879b6132ad7993800bc6cb911a66b83fad6a8c7214da97d0eb8f1886142
