[INFO] cloning repository https://github.com/swarmer/udpclient [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/swarmer/udpclient" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswarmer%2Fudpclient", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswarmer%2Fudpclient'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3c060933bd4c83f3a47bf263acd5484efbba3081 [INFO] checking swarmer/udpclient against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswarmer%2Fudpclient" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/swarmer/udpclient 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/swarmer/udpclient [INFO] finished tweaking git repo https://github.com/swarmer/udpclient [INFO] tweaked toml for git repo https://github.com/swarmer/udpclient written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/swarmer/udpclient 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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded termion v1.5.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] c479e8c17001cf5d3426cf4ea39f9018bb0e8700e1947f57c966c5895e2809f9 [INFO] running `Command { std: "docker" "start" "-a" "c479e8c17001cf5d3426cf4ea39f9018bb0e8700e1947f57c966c5895e2809f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c479e8c17001cf5d3426cf4ea39f9018bb0e8700e1947f57c966c5895e2809f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c479e8c17001cf5d3426cf4ea39f9018bb0e8700e1947f57c966c5895e2809f9", kill_on_drop: false }` [INFO] [stdout] c479e8c17001cf5d3426cf4ea39f9018bb0e8700e1947f57c966c5895e2809f9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 97f5b719c04fef58b62543e4657d5c36b0708a550499b5eeff7fc5c8bb73cb3a [INFO] running `Command { std: "docker" "start" "-a" "97f5b719c04fef58b62543e4657d5c36b0708a550499b5eeff7fc5c8bb73cb3a", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.58 [INFO] [stderr] Checking cfg-if v0.1.9 [INFO] [stderr] Checking rand_core v0.4.0 [INFO] [stderr] Compiling autocfg v0.1.4 [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Checking futures v0.1.27 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Checking stable_deref_trait v1.1.1 [INFO] [stderr] Compiling arrayvec v0.4.10 [INFO] [stderr] Checking smallvec v0.6.10 [INFO] [stderr] Checking fnv v1.0.6 [INFO] [stderr] Checking nodrop v0.1.13 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Compiling bitflags v1.1.0 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Checking owning_ref v0.4.0 [INFO] [stderr] Checking tokio-trace-core v0.2.0 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking crossbeam-utils v0.6.5 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Checking lock_api v0.1.5 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking crossbeam-queue v0.1.2 [INFO] [stderr] Checking crossbeam-epoch v0.7.1 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking num_cpus v1.10.1 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking crossbeam-deque v0.7.1 [INFO] [stderr] Checking mio v0.6.19 [INFO] [stderr] Checking tokio-executor v0.1.7 [INFO] [stderr] Checking tokio-sync v0.1.6 [INFO] [stderr] Checking tokio-io v0.1.12 [INFO] [stderr] Checking tokio-timer v0.2.11 [INFO] [stderr] Checking tokio-current-thread v0.1.6 [INFO] [stderr] Checking tokio-codec v0.1.1 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking tokio-threadpool v0.1.14 [INFO] [stderr] Checking parking_lot v0.7.1 [INFO] [stderr] Checking tokio-reactor v0.1.9 [INFO] [stderr] Checking tokio-fs v0.1.6 [INFO] [stderr] Checking tokio-uds v0.2.5 [INFO] [stderr] Checking tokio-tcp v0.1.3 [INFO] [stderr] Checking tokio-udp v0.1.3 [INFO] [stderr] Checking tokio v0.1.21 [INFO] [stderr] Checking udpclient v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Read` is imported redundantly [INFO] [stdout] --> src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::Read; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 9 | use tokio::prelude::*; [INFO] [stdout] | ----------------- the item `Read` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `tokio` is imported redundantly [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use tokio; [INFO] [stdout] | ^^^^^ the item `tokio` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Read` is imported redundantly [INFO] [stdout] --> src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::Read; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 9 | use tokio::prelude::*; [INFO] [stdout] | ----------------- the item `Read` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `tokio` is imported redundantly [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use tokio; [INFO] [stdout] | ^^^^^ the item `tokio` is already defined by prelude [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 5.21s [INFO] running `Command { std: "docker" "inspect" "97f5b719c04fef58b62543e4657d5c36b0708a550499b5eeff7fc5c8bb73cb3a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "97f5b719c04fef58b62543e4657d5c36b0708a550499b5eeff7fc5c8bb73cb3a", kill_on_drop: false }` [INFO] [stdout] 97f5b719c04fef58b62543e4657d5c36b0708a550499b5eeff7fc5c8bb73cb3a [INFO] checking swarmer/udpclient against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswarmer%2Fudpclient" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/swarmer/udpclient 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/swarmer/udpclient [INFO] finished tweaking git repo https://github.com/swarmer/udpclient [INFO] tweaked toml for git repo https://github.com/swarmer/udpclient written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/swarmer/udpclient 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 74da85b8999c6f73f6bad2521204af3acaefc1b73583a571d70cc51e96438aaf [INFO] running `Command { std: "docker" "start" "-a" "74da85b8999c6f73f6bad2521204af3acaefc1b73583a571d70cc51e96438aaf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "74da85b8999c6f73f6bad2521204af3acaefc1b73583a571d70cc51e96438aaf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "74da85b8999c6f73f6bad2521204af3acaefc1b73583a571d70cc51e96438aaf", kill_on_drop: false }` [INFO] [stdout] 74da85b8999c6f73f6bad2521204af3acaefc1b73583a571d70cc51e96438aaf [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 78eb1a93500038bcc56fe9d163086557ea68df4718139af6aa2ca3209f2a4120 [INFO] running `Command { std: "docker" "start" "-a" "78eb1a93500038bcc56fe9d163086557ea68df4718139af6aa2ca3209f2a4120", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.58 [INFO] [stderr] Checking cfg-if v0.1.9 [INFO] [stderr] Checking rand_core v0.4.0 [INFO] [stderr] Compiling autocfg v0.1.4 [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Checking futures v0.1.27 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Checking stable_deref_trait v1.1.1 [INFO] [stderr] Checking smallvec v0.6.10 [INFO] [stderr] Compiling arrayvec v0.4.10 [INFO] [stderr] Checking fnv v1.0.6 [INFO] [stderr] Checking nodrop v0.1.13 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Compiling bitflags v1.1.0 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Checking crossbeam-utils v0.6.5 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Checking owning_ref v0.4.0 [INFO] [stderr] Checking tokio-trace-core v0.2.0 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Checking lock_api v0.1.5 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking crossbeam-queue v0.1.2 [INFO] [stderr] Checking crossbeam-epoch v0.7.1 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking num_cpus v1.10.1 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking crossbeam-deque v0.7.1 [INFO] [stderr] Checking mio v0.6.19 [INFO] [stderr] Checking tokio-executor v0.1.7 [INFO] [stderr] Checking tokio-io v0.1.12 [INFO] [stderr] Checking tokio-sync v0.1.6 [INFO] [stderr] Checking tokio-timer v0.2.11 [INFO] [stderr] Checking tokio-current-thread v0.1.6 [INFO] [stderr] Checking tokio-codec v0.1.1 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking tokio-threadpool v0.1.14 [INFO] [stderr] Checking parking_lot v0.7.1 [INFO] [stderr] Checking tokio-fs v0.1.6 [INFO] [stderr] Checking tokio-reactor v0.1.9 [INFO] [stderr] Checking tokio-tcp v0.1.3 [INFO] [stderr] Checking tokio-udp v0.1.3 [INFO] [stderr] Checking tokio-uds v0.2.5 [INFO] [stderr] Checking tokio v0.1.21 [INFO] [stderr] Checking udpclient v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Read` is imported redundantly [INFO] [stdout] --> src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::Read; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 9 | use tokio::prelude::*; [INFO] [stdout] | ----------------- the item `Read` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `tokio` is imported redundantly [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use tokio; [INFO] [stdout] | ^^^^^ the item `tokio` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Read` is imported redundantly [INFO] [stdout] --> src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::Read; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 9 | use tokio::prelude::*; [INFO] [stdout] | ----------------- the item `Read` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `tokio` is imported redundantly [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use tokio; [INFO] [stdout] | ^^^^^ the item `tokio` is already defined by prelude [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 5.95s [INFO] running `Command { std: "docker" "inspect" "78eb1a93500038bcc56fe9d163086557ea68df4718139af6aa2ca3209f2a4120", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "78eb1a93500038bcc56fe9d163086557ea68df4718139af6aa2ca3209f2a4120", kill_on_drop: false }` [INFO] [stdout] 78eb1a93500038bcc56fe9d163086557ea68df4718139af6aa2ca3209f2a4120