[INFO] fetching crate crcp 0.3.7...
[INFO] testing crcp-0.3.7 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate crcp 0.3.7 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate crcp 0.3.7 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate crcp 0.3.7
[INFO] finished tweaking crates.io crate crcp 0.3.7
[INFO] tweaked toml for crates.io crate crcp 0.3.7 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate crcp 0.3.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 77a9cad56d4dcda767cea873fc4ffe9b94b8b2215f95379b114899eee0cc95ac
[INFO] running `Command { std: "docker" "start" "-a" "77a9cad56d4dcda767cea873fc4ffe9b94b8b2215f95379b114899eee0cc95ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77a9cad56d4dcda767cea873fc4ffe9b94b8b2215f95379b114899eee0cc95ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77a9cad56d4dcda767cea873fc4ffe9b94b8b2215f95379b114899eee0cc95ac", kill_on_drop: false }`
[INFO] [stdout] 77a9cad56d4dcda767cea873fc4ffe9b94b8b2215f95379b114899eee0cc95ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ded65f90668144f153910a79126c387b76dafe6ee922531365f8c783b9b2fa4
[INFO] running `Command { std: "docker" "start" "-a" "8ded65f90668144f153910a79126c387b76dafe6ee922531365f8c783b9b2fa4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling crcp v0.3.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/distribution_map.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |             &self.weights.insert(*k, el);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 57 |             let _ = &self.weights.insert(*k, el);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.30s
[INFO] running `Command { std: "docker" "inspect" "8ded65f90668144f153910a79126c387b76dafe6ee922531365f8c783b9b2fa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ded65f90668144f153910a79126c387b76dafe6ee922531365f8c783b9b2fa4", kill_on_drop: false }`
[INFO] [stdout] 8ded65f90668144f153910a79126c387b76dafe6ee922531365f8c783b9b2fa4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bcdc4bb81ad155990fb11dfa6a76c93570c86d559c5e3473c806f0d5e85710a6
[INFO] running `Command { std: "docker" "start" "-a" "bcdc4bb81ad155990fb11dfa6a76c93570c86d559c5e3473c806f0d5e85710a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling crcp v0.3.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/distribution_map.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |             &self.weights.insert(*k, el);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 57 |             let _ = &self.weights.insert(*k, el);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/crcp-d56210da250e4674)
[INFO] running `Command { std: "docker" "inspect" "bcdc4bb81ad155990fb11dfa6a76c93570c86d559c5e3473c806f0d5e85710a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcdc4bb81ad155990fb11dfa6a76c93570c86d559c5e3473c806f0d5e85710a6", kill_on_drop: false }`
[INFO] [stdout] bcdc4bb81ad155990fb11dfa6a76c93570c86d559c5e3473c806f0d5e85710a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d4d94e2e5f87b4076157650059d35ac9aabf96828b41bde1924e9ed5d37814fb
[INFO] running `Command { std: "docker" "start" "-a" "d4d94e2e5f87b4076157650059d35ac9aabf96828b41bde1924e9ed5d37814fb", kill_on_drop: false }`
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> src/distribution_map.rs:57:13
[INFO] [stderr]    |
[INFO] [stderr] 57 |             &self.weights.insert(*k, el);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 57 |             let _ = &self.weights.insert(*k, el);
[INFO] [stderr]    |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `crcp` (bin "crcp" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/crcp-d56210da250e4674)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test tests::test_order_16 ... ok
[INFO] [stdout] test tests::test_order_13 ... ok
[INFO] [stdout] test tests::test_order_4 ... ok
[INFO] [stdout] test tests::test_order_16_2 ... ok
[INFO] [stdout] test tests::test_add_more_noise_1 ... ok
[INFO] [stdout] test tests::test_add_noise_var_1 ... ok
[INFO] [stdout] test tests::test_reminder_1 ... ok
[INFO] [stdout] test tests::test_reminder_2 ... ok
[INFO] [stdout] test tests::test_reminder_3 ... ok
[INFO] [stdout] test tests::test_reminder_4 ... ok
[INFO] [stdout] test tests::test_reminder_5 ... ok
[INFO] [stdout] test tests::test_weight ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d4d94e2e5f87b4076157650059d35ac9aabf96828b41bde1924e9ed5d37814fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4d94e2e5f87b4076157650059d35ac9aabf96828b41bde1924e9ed5d37814fb", kill_on_drop: false }`
[INFO] [stdout] d4d94e2e5f87b4076157650059d35ac9aabf96828b41bde1924e9ed5d37814fb