[INFO] cloning repository https://github.com/maxcohn/netcat-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maxcohn/netcat-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxcohn%2Fnetcat-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxcohn%2Fnetcat-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d89de0f27ea21dd88b209cd5ba44afc78d7385d6 [INFO] checking maxcohn/netcat-rs against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxcohn%2Fnetcat-rs" "/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/maxcohn/netcat-rs 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 git repo https://github.com/maxcohn/netcat-rs [INFO] finished tweaking git repo https://github.com/maxcohn/netcat-rs [INFO] tweaked toml for git repo https://github.com/maxcohn/netcat-rs written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/maxcohn/netcat-rs 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a8176fc3d3bdb480d46966db928fd0ed72547160ba6d060ba884282ea0d5135a [INFO] running `Command { std: "docker" "start" "-a" "a8176fc3d3bdb480d46966db928fd0ed72547160ba6d060ba884282ea0d5135a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a8176fc3d3bdb480d46966db928fd0ed72547160ba6d060ba884282ea0d5135a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a8176fc3d3bdb480d46966db928fd0ed72547160ba6d060ba884282ea0d5135a", kill_on_drop: false }` [INFO] [stdout] a8176fc3d3bdb480d46966db928fd0ed72547160ba6d060ba884282ea0d5135a [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5ece38e41db561a654ac560d7ee38b1bb4cdbcc1402e8c09895c062740b6af4b [INFO] running `Command { std: "docker" "start" "-a" "5ece38e41db561a654ac560d7ee38b1bb4cdbcc1402e8c09895c062740b6af4b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.68 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking netcat-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `BufRead` is imported redundantly [INFO] [stdout] --> src/main.rs:3:15 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::prelude::*; [INFO] [stdout] | ------------------- the item `BufRead` is already imported here [INFO] [stdout] 3 | use std::io::{BufRead, BufReader}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `BufRead` is imported redundantly [INFO] [stdout] --> src/main.rs:3:15 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::prelude::*; [INFO] [stdout] | ------------------- the item `BufRead` is already imported here [INFO] [stdout] 3 | use std::io::{BufRead, BufReader}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` 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` profile [unoptimized + debuginfo] target(s) in 4.08s [INFO] running `Command { std: "docker" "inspect" "5ece38e41db561a654ac560d7ee38b1bb4cdbcc1402e8c09895c062740b6af4b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5ece38e41db561a654ac560d7ee38b1bb4cdbcc1402e8c09895c062740b6af4b", kill_on_drop: false }` [INFO] [stdout] 5ece38e41db561a654ac560d7ee38b1bb4cdbcc1402e8c09895c062740b6af4b [INFO] checking maxcohn/netcat-rs against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxcohn%2Fnetcat-rs" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/maxcohn/netcat-rs 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 git repo https://github.com/maxcohn/netcat-rs [INFO] finished tweaking git repo https://github.com/maxcohn/netcat-rs [INFO] tweaked toml for git repo https://github.com/maxcohn/netcat-rs written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/maxcohn/netcat-rs 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] fcbcdfcc9dbe8dd943a54807f8b92b14ed50076f8d5eabd710f41bceef842f98 [INFO] running `Command { std: "docker" "start" "-a" "fcbcdfcc9dbe8dd943a54807f8b92b14ed50076f8d5eabd710f41bceef842f98", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fcbcdfcc9dbe8dd943a54807f8b92b14ed50076f8d5eabd710f41bceef842f98", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fcbcdfcc9dbe8dd943a54807f8b92b14ed50076f8d5eabd710f41bceef842f98", kill_on_drop: false }` [INFO] [stdout] fcbcdfcc9dbe8dd943a54807f8b92b14ed50076f8d5eabd710f41bceef842f98 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] cb4096aa8c2df3d00a04963cfc2f916781443807a8bf64b67ceffac27d2efe65 [INFO] running `Command { std: "docker" "start" "-a" "cb4096aa8c2df3d00a04963cfc2f916781443807a8bf64b67ceffac27d2efe65", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.68 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking netcat-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `BufRead` is imported redundantly [INFO] [stdout] --> src/main.rs:3:15 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::prelude::*; [INFO] [stdout] | ------------------- the item `BufRead` is already imported here [INFO] [stdout] 3 | use std::io::{BufRead, BufReader}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `BufRead` is imported redundantly [INFO] [stdout] --> src/main.rs:3:15 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::prelude::*; [INFO] [stdout] | ------------------- the item `BufRead` is already imported here [INFO] [stdout] 3 | use std::io::{BufRead, BufReader}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` 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` profile [unoptimized + debuginfo] target(s) in 4.16s [INFO] running `Command { std: "docker" "inspect" "cb4096aa8c2df3d00a04963cfc2f916781443807a8bf64b67ceffac27d2efe65", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cb4096aa8c2df3d00a04963cfc2f916781443807a8bf64b67ceffac27d2efe65", kill_on_drop: false }` [INFO] [stdout] cb4096aa8c2df3d00a04963cfc2f916781443807a8bf64b67ceffac27d2efe65