[INFO] fetching crate gdb-server 0.10.0...
[INFO] checking gdb-server-0.10.0 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] extracting crate gdb-server 0.10.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate gdb-server 0.10.0 on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gdb-server 0.10.0
[INFO] finished tweaking crates.io crate gdb-server 0.10.0
[INFO] tweaked toml for crates.io crate gdb-server 0.10.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate gdb-server 0.10.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded jaylink v0.1.5
[INFO] [stderr]   Downloaded gdb-protocol v0.1.0
[INFO] [stderr]   Downloaded probe-rs-t2rust v0.7.0
[INFO] [stderr]   Downloaded rusb v0.6.5
[INFO] [stderr]   Downloaded libusb1-sys v0.4.2
[INFO] [stderr]   Downloaded ihex v3.0.0
[INFO] [stderr]   Downloaded probe-rs v0.10.0
[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" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a07b94c3d5752a1b09866af6babe3fec0cbb8cc685af802d10fda1c0f9354928
[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" "a07b94c3d5752a1b09866af6babe3fec0cbb8cc685af802d10fda1c0f9354928", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a07b94c3d5752a1b09866af6babe3fec0cbb8cc685af802d10fda1c0f9354928", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a07b94c3d5752a1b09866af6babe3fec0cbb8cc685af802d10fda1c0f9354928", kill_on_drop: false }`
[INFO] [stdout] a07b94c3d5752a1b09866af6babe3fec0cbb8cc685af802d10fda1c0f9354928
[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" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81d2c0f198bb5c090f1c9a8a738255b8bdd3e6f6c5e7aadbb3f6fe439e5df07a
[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" "81d2c0f198bb5c090f1c9a8a738255b8bdd3e6f6c5e7aadbb3f6fe439e5df07a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling cc v1.0.63
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]    Compiling libflate_lz77 v1.0.0
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]     Checking pin-project-lite v0.1.11
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]    Compiling linked-hash-map v0.5.3
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking tap v1.0.0
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking dtoa v0.4.6
[INFO] [stderr]     Checking wasmparser v0.57.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking funty v1.0.1
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]     Checking ihex v3.0.0
[INFO] [stderr]     Checking svg v0.8.0
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking futures-task v0.3.8
[INFO] [stderr]    Compiling yaml-rust v0.4.4
[INFO] [stderr]     Checking futures-channel v0.3.8
[INFO] [stderr]     Checking async-mutex v1.4.0
[INFO] [stderr]     Checking memchr v2.3.4
[INFO] [stderr]     Checking async-channel v1.5.1
[INFO] [stderr]     Checking ryu v1.0.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking miniz_oxide v0.4.3
[INFO] [stderr]     Checking futures-lite v1.11.2
[INFO] [stderr]     Checking gdb-protocol v0.1.0
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]    Compiling nom v6.0.0
[INFO] [stderr]     Checking bitvec v0.19.4
[INFO] [stderr]    Compiling libflate v1.0.3
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]     Checking nb-connect v1.0.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking flate2 v1.0.19
[INFO] [stderr]    Compiling filetime v0.2.13
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]    Compiling tar v0.4.30
[INFO] [stderr]     Checking async-io v1.2.0
[INFO] [stderr]     Checking async-executor v1.4.0
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]    Compiling hidapi v1.2.3
[INFO] [stderr]     Checking async-global-executor v1.4.3
[INFO] [stderr]     Checking async-std v1.7.0
[INFO] [stderr]    Compiling libusb1-sys v0.4.2
[INFO] [stderr]     Checking rusb v0.6.5
[INFO] [stderr]     Checking jaylink v0.1.5
[INFO] [stderr]    Compiling scroll_derive v0.10.4
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling enum-primitive-derive v0.2.1
[INFO] [stderr]    Compiling scroll v0.10.2
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking goblin v0.2.3
[INFO] [stderr]     Checking pin-project v1.0.2
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]    Compiling serde_yaml v0.8.14
[INFO] [stderr]     Checking jep106 v0.2.4
[INFO] [stderr]    Compiling probe-rs-t2rust v0.7.0
[INFO] [stderr]    Compiling probe-rs v0.10.0
[INFO] [stderr]     Checking gdb-server v0.10.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/gdb_server_async.rs:97:25
[INFO] [stdout]    |
[INFO] [stdout] 97 |                     Err(e) => {
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/gdb_server_async.rs:97:25
[INFO] [stdout]    |
[INFO] [stdout] 97 |                     Err(e) => {
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` 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 2m 25s
[INFO] running `Command { std: "docker" "inspect" "81d2c0f198bb5c090f1c9a8a738255b8bdd3e6f6c5e7aadbb3f6fe439e5df07a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81d2c0f198bb5c090f1c9a8a738255b8bdd3e6f6c5e7aadbb3f6fe439e5df07a", kill_on_drop: false }`
[INFO] [stdout] 81d2c0f198bb5c090f1c9a8a738255b8bdd3e6f6c5e7aadbb3f6fe439e5df07a