[INFO] updating cached repository https://github.com/lumichael94/turbine
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 57692ccb6fd077d68d344467483514dd91e5c2bc
[INFO] checking lumichael94/turbine against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Flumichael94%2Fturbine" "work/builds/worker-6/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lumichael94/turbine on toolchain c9edc02e8320a9e5799d185910ece7d491f524e6-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/lumichael94/turbine
[INFO] finished tweaking git repo https://github.com/lumichael94/turbine
[INFO] tweaked toml for git repo https://github.com/lumichael94/turbine written to work/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/lumichael94/turbine already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /mnt/big/crater/work/builds/worker-6/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 693ca41cf4f1d1c7a7d934d6f1aab96169ad7dce6ede050fd9bed40d7c6d1d70
[INFO] running `"docker" "start" "-a" "693ca41cf4f1d1c7a7d934d6f1aab96169ad7dce6ede050fd9bed40d7c6d1d70"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libsqlite3-sys v0.4.0
[INFO] [stderr]    Compiling secp256k1 v0.5.6
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]     Checking serde_json v0.6.1
[INFO] [stderr]     Checking bincode v0.4.1
[INFO] [stderr]     Checking rusqlite v0.6.1
[INFO] [stderr]     Checking turbine v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Encodable`
[INFO] [stderr]  --> src/data/log.rs:4:23
[INFO] [stderr]   |
[INFO] [stderr] 4 | use rustc_serialize::{Encodable};
[INFO] [stderr]   |                       ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Encodable`
[INFO] [stderr]  --> src/data/account.rs:4:23
[INFO] [stderr]   |
[INFO] [stderr] 4 | use rustc_serialize::{Encodable};
[INFO] [stderr]   |                       ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Encodable`
[INFO] [stderr]  --> src/data/state.rs:4:23
[INFO] [stderr]   |
[INFO] [stderr] 4 | use rustc_serialize::{Encodable};
[INFO] [stderr]   |                       ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Encodable`
[INFO] [stderr]  --> src/data/log.rs:4:23
[INFO] [stderr]   |
[INFO] [stderr] 4 | use rustc_serialize::{Encodable};
[INFO] [stderr]   |                       ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Encodable`
[INFO] [stderr]  --> src/data/account.rs:4:23
[INFO] [stderr]   |
[INFO] [stderr] 4 | use rustc_serialize::{Encodable};
[INFO] [stderr]   |                       ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Encodable`
[INFO] [stderr]  --> src/data/state.rs:4:23
[INFO] [stderr]   |
[INFO] [stderr] 4 | use rustc_serialize::{Encodable};
[INFO] [stderr]   |                       ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::BufRead`
[INFO] [stderr]  --> src/engine/turbo.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::BufRead;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BufRead`
[INFO] [stderr]  --> src/util/helper.rs:5:28
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{self, Write, BufRead};
[INFO] [stderr]   |                            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::BufRead`
[INFO] [stderr]  --> src/engine/turbo.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::BufRead;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BufRead`
[INFO] [stderr]  --> src/util/helper.rs:5:28
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{self, Write, BufRead};
[INFO] [stderr]   |                            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.02s
[INFO] running `"docker" "inspect" "693ca41cf4f1d1c7a7d934d6f1aab96169ad7dce6ede050fd9bed40d7c6d1d70"`
[INFO] running `"docker" "rm" "-f" "693ca41cf4f1d1c7a7d934d6f1aab96169ad7dce6ede050fd9bed40d7c6d1d70"`
[INFO] [stdout] 693ca41cf4f1d1c7a7d934d6f1aab96169ad7dce6ede050fd9bed40d7c6d1d70