[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/f52b332ca4dc317df2f202fbe9fb52f7cc0ec058 against try#264a7c4a1c917c83d13895a31231f9d93c7b67e1 for pr-132289
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKelerchian%2Fexpr-bcrypt-qthreaded" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Kelerchian/expr-bcrypt-qthreaded on toolchain 264a7c4a1c917c83d13895a31231f9d93c7b67e1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+264a7c4a1c917c83d13895a31231f9d93c7b67e1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-7-tc2/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+264a7c4a1c917c83d13895a31231f9d93c7b67e1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded random-integer v1.1.1
[INFO] [stderr]   Downloaded random-pick v1.2.8
[INFO] [stderr]   Downloaded bcrypt v0.6.2
[INFO] [stderr]   Downloaded passwords v3.0.0
[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_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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+264a7c4a1c917c83d13895a31231f9d93c7b67e1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 840e6c7558d957743b71dd6e816b76ffb2e3cf421a29f0f05102e775c66aaeef
[INFO] running `Command { std: "docker" "start" "-a" "840e6c7558d957743b71dd6e816b76ffb2e3cf421a29f0f05102e775c66aaeef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "840e6c7558d957743b71dd6e816b76ffb2e3cf421a29f0f05102e775c66aaeef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "840e6c7558d957743b71dd6e816b76ffb2e3cf421a29f0f05102e775c66aaeef", kill_on_drop: false }`
[INFO] [stdout] 840e6c7558d957743b71dd6e816b76ffb2e3cf421a29f0f05102e775c66aaeef
[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=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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+264a7c4a1c917c83d13895a31231f9d93c7b67e1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 61f829c62a02d1db1c53fabb3970acdb337e5168f5d76ecb4e3c0d7f9a62f11b
[INFO] running `Command { std: "docker" "start" "-a" "61f829c62a02d1db1c53fabb3970acdb337e5168f5d76ecb4e3c0d7f9a62f11b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking base64 v0.12.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking block-cipher-trait v0.6.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking blowfish v0.4.0
[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: 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 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: 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 `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: 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] 57 |         let _ = self.tx.send(None);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `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] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 58 |                 let _ = out_file.write(res.as_bytes());
[INFO] [stdout]    |                 +++++++
[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: 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 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: 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 `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: 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] 57 |         let _ = self.tx.send(None);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `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] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 58 |                 let _ = out_file.write(res.as_bytes());
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.52s
[INFO] running `Command { std: "docker" "inspect" "61f829c62a02d1db1c53fabb3970acdb337e5168f5d76ecb4e3c0d7f9a62f11b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61f829c62a02d1db1c53fabb3970acdb337e5168f5d76ecb4e3c0d7f9a62f11b", kill_on_drop: false }`
[INFO] [stdout] 61f829c62a02d1db1c53fabb3970acdb337e5168f5d76ecb4e3c0d7f9a62f11b
