[INFO] cloning repository https://github.com/NaoPross/rusbtmc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NaoPross/rusbtmc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNaoPross%2Frusbtmc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNaoPross%2Frusbtmc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b070bd7936a9676cc12d44b65c72cb94010fccd1
[INFO] checking NaoPross/rusbtmc/b070bd7936a9676cc12d44b65c72cb94010fccd1 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNaoPross%2Frusbtmc" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/NaoPross/rusbtmc on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/NaoPross/rusbtmc
[INFO] finished tweaking git repo https://github.com/NaoPross/rusbtmc
[INFO] tweaked toml for git repo https://github.com/NaoPross/rusbtmc written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/NaoPross/rusbtmc 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3de5f2421b6a56d9c910e3a554cd8317ef16ee4f9d96ad5630b5e33e7ef3d689
[INFO] running `Command { std: "docker" "start" "-a" "3de5f2421b6a56d9c910e3a554cd8317ef16ee4f9d96ad5630b5e33e7ef3d689", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3de5f2421b6a56d9c910e3a554cd8317ef16ee4f9d96ad5630b5e33e7ef3d689", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3de5f2421b6a56d9c910e3a554cd8317ef16ee4f9d96ad5630b5e33e7ef3d689", kill_on_drop: false }`
[INFO] [stdout] 3de5f2421b6a56d9c910e3a554cd8317ef16ee4f9d96ad5630b5e33e7ef3d689
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dtail_expr_drop_order" "-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 39852ec2e12d3dde2bba714c4bab114733d3c5e6ed1e108c4b4cc66378697e9a
[INFO] running `Command { std: "docker" "start" "-a" "39852ec2e12d3dde2bba714c4bab114733d3c5e6ed1e108c4b4cc66378697e9a", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling nix v0.16.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling rusb v0.8.1
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling libusb1-sys v0.5.0
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]     Checking thiserror v1.0.25
[INFO] [stderr]     Checking serialport v4.0.1
[INFO] [stderr]     Checking rusbtmc v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `In` is never constructed
[INFO] [stdout]   --> src/lib.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | enum Direction {
[INFO] [stdout]    |      --------- variant in this enum
[INFO] [stdout] 55 |     In,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `In` is never constructed
[INFO] [stdout]   --> src/lib.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | enum Direction {
[INFO] [stdout]    |      --------- variant in this enum
[INFO] [stdout] 55 |     In,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `VendorSpecific` is never constructed
[INFO] [stdout]   --> src/lib.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | enum MsgId {
[INFO] [stdout]    |      ----- variant in this enum
[INFO] [stdout] 60 |     DeviceDependent,
[INFO] [stdout] 61 |     VendorSpecific,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `bcd_usbtmc` is never read
[INFO] [stdout]   --> src/lib.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub struct Capabilities {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 69 |     /* version number (in BCD) */
[INFO] [stdout] 70 |     bcd_usbtmc: u16,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Capabilities` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `VendorSpecific` is never constructed
[INFO] [stdout]   --> src/lib.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | enum MsgId {
[INFO] [stdout]    |      ----- variant in this enum
[INFO] [stdout] 60 |     DeviceDependent,
[INFO] [stdout] 61 |     VendorSpecific,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `bcd_usbtmc` is never read
[INFO] [stdout]   --> src/lib.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub struct Capabilities {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 69 |     /* version number (in BCD) */
[INFO] [stdout] 70 |     bcd_usbtmc: u16,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Capabilities` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.67s
[INFO] running `Command { std: "docker" "inspect" "39852ec2e12d3dde2bba714c4bab114733d3c5e6ed1e108c4b4cc66378697e9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39852ec2e12d3dde2bba714c4bab114733d3c5e6ed1e108c4b4cc66378697e9a", kill_on_drop: false }`
[INFO] [stdout] 39852ec2e12d3dde2bba714c4bab114733d3c5e6ed1e108c4b4cc66378697e9a