[INFO] fetching crate snet 0.2.0... [INFO] checking snet-0.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate snet 0.2.0 into /workspace/builds/worker-2-tc1/source [INFO] validating manifest of crates.io crate snet 0.2.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate snet 0.2.0 [INFO] finished tweaking crates.io crate snet 0.2.0 [INFO] tweaked toml for crates.io crate snet 0.2.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 49 packages [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding cfg-if v0.1.10 (latest: v1.0.0) [INFO] [stderr] Adding clap v2.34.0 (latest: v4.5.4) [INFO] [stderr] Adding hermit-abi v0.1.19 (latest: v0.3.9) [INFO] [stderr] Adding libudev v0.2.0 (latest: v0.3.0) [INFO] [stderr] Adding mach v0.1.2 (latest: v0.3.2) [INFO] [stderr] Adding mach v0.2.3 (latest: v0.3.2) [INFO] [stderr] Adding nix v0.14.1 (latest: v0.28.0) [INFO] [stderr] Adding redox_syscall v0.4.1 (latest: v0.5.1) [INFO] [stderr] Adding serialport v3.3.0 (latest: v4.3.0) [INFO] [stderr] Adding strsim v0.8.0 (latest: v0.11.1) [INFO] [stderr] Adding textwrap v0.11.0 (latest: v0.16.1) [INFO] [stderr] Adding windows-targets v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_i686_gnu v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_i686_msvc v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded IOKit-sys v0.1.5 [INFO] [stderr] Downloaded mach v0.2.3 [INFO] [stderr] Downloaded CoreFoundation-sys v0.1.4 [INFO] [stderr] Downloaded mach v0.1.2 [INFO] [stderr] Downloaded serialport v3.3.0 [INFO] [stderr] Downloaded bus v2.4.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6fec6167eb2c084b5ae6142b0b4edd2a14ad5a8616810ffba9ede196218d6123 [INFO] running `Command { std: "docker" "start" "-a" "6fec6167eb2c084b5ae6142b0b4edd2a14ad5a8616810ffba9ede196218d6123", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6fec6167eb2c084b5ae6142b0b4edd2a14ad5a8616810ffba9ede196218d6123", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6fec6167eb2c084b5ae6142b0b4edd2a14ad5a8616810ffba9ede196218d6123", kill_on_drop: false }` [INFO] [stdout] 6fec6167eb2c084b5ae6142b0b4edd2a14ad5a8616810ffba9ede196218d6123 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 23a64ecb997098fb6c517c302ad998f820cbe22a9691cddddd962290ce59ef87 [INFO] running `Command { std: "docker" "start" "-a" "23a64ecb997098fb6c517c302ad998f820cbe22a9691cddddd962290ce59ef87", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Compiling pkg-config v0.3.30 [INFO] [stderr] Compiling nix v0.14.1 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Compiling libudev-sys v0.1.4 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking parking_lot_core v0.9.9 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking libudev v0.2.0 [INFO] [stderr] Checking bus v2.4.1 [INFO] [stderr] Checking serialport v3.3.0 [INFO] [stderr] Checking snet v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `mpsc` is imported redundantly [INFO] [stdout] --> src/main.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use std::sync::mpsc; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 22 | use std::sync::*; [INFO] [stdout] | ------------ the item `mpsc` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Write` is imported redundantly [INFO] [stdout] --> src/main.rs:15:21 [INFO] [stdout] | [INFO] [stdout] 13 | use std::io::prelude::*; [INFO] [stdout] | ------------------- the item `Write` is already imported here [INFO] [stdout] 14 | use std::sync::mpsc; [INFO] [stdout] 15 | use std::io::{self, Write}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `mpsc` is imported redundantly [INFO] [stdout] --> src/main.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use std::sync::mpsc; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 22 | use std::sync::*; [INFO] [stdout] | ------------ the item `mpsc` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Write` is imported redundantly [INFO] [stdout] --> src/main.rs:15:21 [INFO] [stdout] | [INFO] [stdout] 13 | use std::io::prelude::*; [INFO] [stdout] | ------------------- the item `Write` is already imported here [INFO] [stdout] 14 | use std::sync::mpsc; [INFO] [stdout] 15 | use std::io::{self, Write}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.03s [INFO] running `Command { std: "docker" "inspect" "23a64ecb997098fb6c517c302ad998f820cbe22a9691cddddd962290ce59ef87", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "23a64ecb997098fb6c517c302ad998f820cbe22a9691cddddd962290ce59ef87", kill_on_drop: false }` [INFO] [stdout] 23a64ecb997098fb6c517c302ad998f820cbe22a9691cddddd962290ce59ef87 [INFO] checking snet-0.2.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] extracting crate snet 0.2.0 into /workspace/builds/worker-2-tc2/source [INFO] validating manifest of crates.io crate snet 0.2.0 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate snet 0.2.0 [INFO] finished tweaking crates.io crate snet 0.2.0 [INFO] tweaked toml for crates.io crate snet 0.2.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2c30f444d701bdd305ff4b18785dc014f0e9ea80a1c5f691beb92dee6804412a [INFO] running `Command { std: "docker" "start" "-a" "2c30f444d701bdd305ff4b18785dc014f0e9ea80a1c5f691beb92dee6804412a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2c30f444d701bdd305ff4b18785dc014f0e9ea80a1c5f691beb92dee6804412a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2c30f444d701bdd305ff4b18785dc014f0e9ea80a1c5f691beb92dee6804412a", kill_on_drop: false }` [INFO] [stdout] 2c30f444d701bdd305ff4b18785dc014f0e9ea80a1c5f691beb92dee6804412a [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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e8e259b374938300b03930c1ee5bec62b24f8a3ec5f6033393e17b0e2b6238ba [INFO] running `Command { std: "docker" "start" "-a" "e8e259b374938300b03930c1ee5bec62b24f8a3ec5f6033393e17b0e2b6238ba", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Compiling pkg-config v0.3.30 [INFO] [stderr] Compiling nix v0.14.1 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Compiling libudev-sys v0.1.4 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking parking_lot_core v0.9.9 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking libudev v0.2.0 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking bus v2.4.1 [INFO] [stderr] Checking serialport v3.3.0 [INFO] [stderr] Checking snet v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `mpsc` is imported redundantly [INFO] [stdout] --> src/main.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use std::sync::mpsc; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 22 | use std::sync::*; [INFO] [stdout] | ------------ the item `mpsc` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Write` is imported redundantly [INFO] [stdout] --> src/main.rs:15:21 [INFO] [stdout] | [INFO] [stdout] 13 | use std::io::prelude::*; [INFO] [stdout] | ------------------- the item `Write` is already imported here [INFO] [stdout] 14 | use std::sync::mpsc; [INFO] [stdout] 15 | use std::io::{self, Write}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `mpsc` is imported redundantly [INFO] [stdout] --> src/main.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use std::sync::mpsc; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 22 | use std::sync::*; [INFO] [stdout] | ------------ the item `mpsc` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Write` is imported redundantly [INFO] [stdout] --> src/main.rs:15:21 [INFO] [stdout] | [INFO] [stdout] 13 | use std::io::prelude::*; [INFO] [stdout] | ------------------- the item `Write` is already imported here [INFO] [stdout] 14 | use std::sync::mpsc; [INFO] [stdout] 15 | use std::io::{self, Write}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.89s [INFO] running `Command { std: "docker" "inspect" "e8e259b374938300b03930c1ee5bec62b24f8a3ec5f6033393e17b0e2b6238ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e8e259b374938300b03930c1ee5bec62b24f8a3ec5f6033393e17b0e2b6238ba", kill_on_drop: false }` [INFO] [stdout] e8e259b374938300b03930c1ee5bec62b24f8a3ec5f6033393e17b0e2b6238ba