[INFO] cloning repository https://github.com/Jos635/cz2020-usbtool
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Jos635/cz2020-usbtool" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJos635%2Fcz2020-usbtool", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJos635%2Fcz2020-usbtool'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ec80516989d4e0c53e5de536848d6103695d3376
[INFO] checking Jos635/cz2020-usbtool/ec80516989d4e0c53e5de536848d6103695d3376 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJos635%2Fcz2020-usbtool" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Jos635/cz2020-usbtool on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Jos635/cz2020-usbtool
[INFO] finished tweaking git repo https://github.com/Jos635/cz2020-usbtool
[INFO] tweaked toml for git repo https://github.com/Jos635/cz2020-usbtool written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Jos635/cz2020-usbtool 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro-error-attr v1.0.3
[INFO] [stderr]   Downloaded arc-swap v0.4.7
[INFO] [stderr]   Downloaded thread-scoped v1.0.2
[INFO] [stderr]   Downloaded pkg-config v0.3.18
[INFO] [stderr]   Downloaded fuse v0.3.1
[INFO] [stderr]   Downloaded cc v1.0.58
[INFO] [stderr]   Downloaded filetime v0.2.11
[INFO] [stderr]   Downloaded crossbeam-channel v0.4.3
[INFO] [stderr]   Downloaded syn v1.0.36
[INFO] [stderr]   Downloaded tar v0.4.29
[INFO] [stderr]   Downloaded proc-macro-error v1.0.3
[INFO] [stderr]   Downloaded socket2 v0.3.12
[INFO] [stderr]   Downloaded xattr v0.2.2
[INFO] [stderr]   Downloaded rusb v0.6.2
[INFO] [stderr]   Downloaded structopt-derive v0.4.8
[INFO] [stderr]   Downloaded structopt v0.3.15
[INFO] [stderr]   Downloaded libusb1-sys v0.3.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 16679231f33c8b799ff1d42fe8c43671321e0d505e712c089538b0bf1b67a4ac
[INFO] running `Command { std: "docker" "start" "-a" "16679231f33c8b799ff1d42fe8c43671321e0d505e712c089538b0bf1b67a4ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16679231f33c8b799ff1d42fe8c43671321e0d505e712c089538b0bf1b67a4ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16679231f33c8b799ff1d42fe8c43671321e0d505e712c089538b0bf1b67a4ac", kill_on_drop: false }`
[INFO] [stdout] 16679231f33c8b799ff1d42fe8c43671321e0d505e712c089538b0bf1b67a4ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16f972dbe619cb1cfcb13d87f79b03e0ab623b874448887483f1b27b9f86b5af
[INFO] running `Command { std: "docker" "start" "-a" "16f972dbe619cb1cfcb13d87f79b03e0ab623b874448887483f1b27b9f86b5af", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling rle-decode-fast v1.0.1
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]    Compiling libflate v0.1.27
[INFO] [stderr]    Compiling fuse v0.3.1
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking thread-scoped v1.0.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking crossbeam-channel v0.4.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling filetime v0.2.11
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]    Compiling tar v0.4.29
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking slice-deque v0.2.4
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking termios v0.3.2
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking buf_redux v0.8.4
[INFO] [stderr]    Compiling libusb1-sys v0.3.7
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking rusb v0.6.2
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]    Compiling structopt-derive v0.4.8
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking structopt v0.3.15
[INFO] [stderr]     Checking cz2020-usbtool v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/fs.rs:960:33
[INFO] [stdout]     |
[INFO] [stdout] 960 | ...                   drop(contents);
[INFO] [stdout]     |                       ^^^^^--------^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            argument has type `&mut Vec<u8>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 960 -                                 drop(contents);
[INFO] [stdout] 960 +                                 let _ = contents;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/fs.rs:960:33
[INFO] [stdout]     |
[INFO] [stdout] 960 | ...                   drop(contents);
[INFO] [stdout]     |                       ^^^^^--------^
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            argument has type `&mut Vec<u8>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 960 -                                 drop(contents);
[INFO] [stdout] 960 +                                 let _ = contents;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.65s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: buf_redux v0.8.4
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "16f972dbe619cb1cfcb13d87f79b03e0ab623b874448887483f1b27b9f86b5af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16f972dbe619cb1cfcb13d87f79b03e0ab623b874448887483f1b27b9f86b5af", kill_on_drop: false }`
[INFO] [stdout] 16f972dbe619cb1cfcb13d87f79b03e0ab623b874448887483f1b27b9f86b5af