[INFO] cloning repository https://github.com/Kelerchian/expr-bcrypt-qthreaded
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Kelerchian/expr-bcrypt-qthreaded" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKelerchian%2Fexpr-bcrypt-qthreaded", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKelerchian%2Fexpr-bcrypt-qthreaded'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f52b332ca4dc317df2f202fbe9fb52f7cc0ec058
[INFO] checking Kelerchian/expr-bcrypt-qthreaded against master#cfbc6d4cf1acbac5c025acf8ed68929caa551df3 for pr-75494-beta
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKelerchian%2Fexpr-bcrypt-qthreaded" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Kelerchian/expr-bcrypt-qthreaded on toolchain cfbc6d4cf1acbac5c025acf8ed68929caa551df3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Kelerchian/expr-bcrypt-qthreaded
[INFO] finished tweaking git repo https://github.com/Kelerchian/expr-bcrypt-qthreaded
[INFO] tweaked toml for git repo https://github.com/Kelerchian/expr-bcrypt-qthreaded written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Kelerchian/expr-bcrypt-qthreaded already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bcrypt v0.6.2
[INFO] [stderr]   Downloaded random-pick v1.2.8
[INFO] [stderr]   Downloaded random-integer v1.1.1
[INFO] [stderr]   Downloaded passwords v3.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17130a9bf21525172cba663706c745ed21008568c0d4e75dab486821b99d00c2
[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" "17130a9bf21525172cba663706c745ed21008568c0d4e75dab486821b99d00c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17130a9bf21525172cba663706c745ed21008568c0d4e75dab486821b99d00c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17130a9bf21525172cba663706c745ed21008568c0d4e75dab486821b99d00c2", kill_on_drop: false }`
[INFO] [stdout] 17130a9bf21525172cba663706c745ed21008568c0d4e75dab486821b99d00c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ac05eac717869a13ea3f3558fa144a1ff2bd3e57dfb30ff74cdd1585df1787d
[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" "8ac05eac717869a13ea3f3558fa144a1ff2bd3e57dfb30ff74cdd1585df1787d", kill_on_drop: false }`
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking base64 v0.12.0
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking block-cipher-trait v0.6.2
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking blowfish v0.4.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking random-integer v1.1.1
[INFO] [stderr]     Checking bcrypt v0.6.2
[INFO] [stderr]     Checking random-pick v1.2.8
[INFO] [stderr]     Checking passwords v3.0.0
[INFO] [stderr]     Checking expr-bcrypt-qthreaded v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Receiver`
[INFO] [stdout]   --> src/bcrypt_example/qthreaded.rs:10:23
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::sync::mpsc::{Receiver, Sender};
[INFO] [stdout]    |                       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Receiver`
[INFO] [stdout]   --> src/bcrypt_example/qthreaded.rs:10:23
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::sync::mpsc::{Receiver, Sender};
[INFO] [stdout]    |                       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bcrypt_example/qthreaded.rs:68:13
[INFO] [stdout]    |
[INFO] [stdout] 68 |         for i in 0..*worker_num {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/bcrypt_example/batched.rs:56:25
[INFO] [stdout]    |
[INFO] [stdout] 56 |                     Err(e) => String::from("hash-failed"),
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `results`
[INFO] [stdout]   --> src/bcrypt_example/batched.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let results = join_handles
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_results`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bcrypt_example/qthreaded.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout] 125 |     let mut lines_iter = BufReader::new(&in_file).lines();
[INFO] [stdout]     |         ----^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/bcrypt_example/qthreaded.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |         self.tx.send(None);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/bcrypt_example/batched.rs:58:17
[INFO] [stdout]    |
[INFO] [stdout] 58 |                 out_file.write(res.as_bytes());
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bcrypt_example/qthreaded.rs:68:13
[INFO] [stdout]    |
[INFO] [stdout] 68 |         for i in 0..*worker_num {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/bcrypt_example/batched.rs:56:25
[INFO] [stdout]    |
[INFO] [stdout] 56 |                     Err(e) => String::from("hash-failed"),
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `results`
[INFO] [stdout]   --> src/bcrypt_example/batched.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let results = join_handles
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_results`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bcrypt_example/qthreaded.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout] 125 |     let mut lines_iter = BufReader::new(&in_file).lines();
[INFO] [stdout]     |         ----^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/bcrypt_example/qthreaded.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |         self.tx.send(None);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/bcrypt_example/batched.rs:58:17
[INFO] [stdout]    |
[INFO] [stdout] 58 |                 out_file.write(res.as_bytes());
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.60s
[INFO] running `Command { std: "docker" "inspect" "8ac05eac717869a13ea3f3558fa144a1ff2bd3e57dfb30ff74cdd1585df1787d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ac05eac717869a13ea3f3558fa144a1ff2bd3e57dfb30ff74cdd1585df1787d", kill_on_drop: false }`
[INFO] [stdout] 8ac05eac717869a13ea3f3558fa144a1ff2bd3e57dfb30ff74cdd1585df1787d
