[INFO] fetching crate teensy-loader 0.1.2...
[INFO] checking teensy-loader-0.1.2 against master#39b841dfe36f90a7cd111e7f0c55f32594f6e578 for pr-77035
[INFO] extracting crate teensy-loader 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate teensy-loader 0.1.2 on toolchain 39b841dfe36f90a7cd111e7f0c55f32594f6e578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate teensy-loader 0.1.2
[INFO] finished tweaking crates.io crate teensy-loader 0.1.2
[INFO] tweaked toml for crates.io crate teensy-loader 0.1.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate teensy-loader 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d8f637441ffd1fe224756533ddc7631c3ac9777ecc5b9016b80663987e010fac
[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" "d8f637441ffd1fe224756533ddc7631c3ac9777ecc5b9016b80663987e010fac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8f637441ffd1fe224756533ddc7631c3ac9777ecc5b9016b80663987e010fac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8f637441ffd1fe224756533ddc7631c3ac9777ecc5b9016b80663987e010fac", kill_on_drop: false }`
[INFO] [stdout] d8f637441ffd1fe224756533ddc7631c3ac9777ecc5b9016b80663987e010fac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efa9f05fa208c1fc2b980061a76440c1d9559f56c6d203c101342f02791e682d
[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" "efa9f05fa208c1fc2b980061a76440c1d9559f56c6d203c101342f02791e682d", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.42
[INFO] [stderr]    Compiling rle-decode-fast v1.0.1
[INFO] [stderr]    Compiling adler32 v1.0.3
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking bit-vec v0.5.1
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking elf v0.0.10
[INFO] [stderr]    Compiling libflate v0.1.27
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking bit-set v0.5.1
[INFO] [stderr]    Compiling filetime v0.2.7
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling tar v0.4.26
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling libusb1-sys v0.3.1
[INFO] [stderr]     Checking backtrace v0.3.37
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking rusb v0.5.1
[INFO] [stderr]     Checking teensy-loader v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]   --> src/payload.rs:85:26
[INFO] [stdout]    |
[INFO] [stdout] 85 |                     .map({ |v| Some(*v) })
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]   --> src/payload.rs:85:26
[INFO] [stdout]    |
[INFO] [stdout] 85 |                     .map({ |v| Some(*v) })
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[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 [unoptimized + debuginfo] target(s) in 17.20s
[INFO] running `Command { std: "docker" "inspect" "efa9f05fa208c1fc2b980061a76440c1d9559f56c6d203c101342f02791e682d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efa9f05fa208c1fc2b980061a76440c1d9559f56c6d203c101342f02791e682d", kill_on_drop: false }`
[INFO] [stdout] efa9f05fa208c1fc2b980061a76440c1d9559f56c6d203c101342f02791e682d