[INFO] cloning repository https://github.com/newsch/collascii-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/newsch/collascii-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnewsch%2Fcollascii-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnewsch%2Fcollascii-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0401a5a130d3d9f2719230cde722f2244e36d2fe [INFO] checking newsch/collascii-rs against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnewsch%2Fcollascii-rs" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/newsch/collascii-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/newsch/collascii-rs [INFO] finished tweaking git repo https://github.com/newsch/collascii-rs [INFO] tweaked toml for git repo https://github.com/newsch/collascii-rs written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/newsch/collascii-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] [stderr] Updating crates.io index [INFO] [stderr] Locking 1 package [INFO] [stderr] Downgrading collascii v0.1.0 (/workspace/builds/worker-7-tc1/source) -> v0.0.0 [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded winreg v0.5.1 [INFO] [stderr] Downloaded pancurses v0.16.1 [INFO] [stderr] Downloaded pdcurses-sys v0.7.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 6379cebb825f360faca3f007edc40a8c619d5afbaebf1aa7c9cd06b848adfdf5 [INFO] running `Command { std: "docker" "start" "-a" "6379cebb825f360faca3f007edc40a8c619d5afbaebf1aa7c9cd06b848adfdf5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6379cebb825f360faca3f007edc40a8c619d5afbaebf1aa7c9cd06b848adfdf5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6379cebb825f360faca3f007edc40a8c619d5afbaebf1aa7c9cd06b848adfdf5", kill_on_drop: false }` [INFO] [stdout] 6379cebb825f360faca3f007edc40a8c619d5afbaebf1aa7c9cd06b848adfdf5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] eacd6bd2b2c23c7a1312fff4a2f08184e5a97adf4dcbc6c34d54297a25edb62d [INFO] running `Command { std: "docker" "start" "-a" "eacd6bd2b2c23c7a1312fff4a2f08184e5a97adf4dcbc6c34d54297a25edb62d", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.19 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling libc v0.2.74 [INFO] [stderr] Compiling version_check v0.9.2 [INFO] [stderr] Compiling syn v1.0.38 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling pkg-config v0.3.18 [INFO] [stderr] Compiling cc v1.0.58 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling unicode-segmentation v1.6.0 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking aho-corasick v0.7.13 [INFO] [stderr] Checking quick-error v1.2.3 [INFO] [stderr] Compiling anyhow v1.0.32 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking humantime v1.3.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking termcolor v1.1.0 [INFO] [stderr] Checking clap v2.33.2 [INFO] [stderr] Compiling ncurses v5.99.0 [INFO] [stderr] Checking pancurses v0.16.1 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Checking env_logger v0.7.1 [INFO] [stderr] Compiling thiserror-impl v1.0.20 [INFO] [stderr] Compiling structopt-derive v0.4.9 [INFO] [stderr] Checking thiserror v1.0.20 [INFO] [stderr] Checking structopt v0.3.16 [INFO] [stderr] Checking collascii v0.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Vec` is imported redundantly [INFO] [stdout] --> src/canvas.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::vec::Vec; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Vec` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Vec` is imported redundantly [INFO] [stdout] --> src/canvas.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::vec::Vec; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Vec` is already defined here [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: panic message is not a string literal [INFO] [stdout] --> src/network/message.rs:434:38 [INFO] [stdout] | [INFO] [stdout] 434 | assert!(result.is_err(), *description); [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 434 | assert!(result.is_err(), "{}", *description); [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `anyhow` is imported redundantly [INFO] [stdout] --> examples/server.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 22 | use anyhow; [INFO] [stdout] | ^^^^^^ the item `anyhow` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `env_logger` is imported redundantly [INFO] [stdout] --> examples/server.rs:23:5 [INFO] [stdout] | [INFO] [stdout] 23 | use env_logger; [INFO] [stdout] | ^^^^^^^^^^ the item `env_logger` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `anyhow` is imported redundantly [INFO] [stdout] --> examples/an-ascii-place.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | use anyhow; [INFO] [stdout] | ^^^^^^ the item `anyhow` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `env_logger` is imported redundantly [INFO] [stdout] --> examples/an-ascii-place.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | use env_logger; [INFO] [stdout] | ^^^^^^^^^^ the item `env_logger` 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 18.73s [INFO] running `Command { std: "docker" "inspect" "eacd6bd2b2c23c7a1312fff4a2f08184e5a97adf4dcbc6c34d54297a25edb62d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eacd6bd2b2c23c7a1312fff4a2f08184e5a97adf4dcbc6c34d54297a25edb62d", kill_on_drop: false }` [INFO] [stdout] eacd6bd2b2c23c7a1312fff4a2f08184e5a97adf4dcbc6c34d54297a25edb62d