[INFO] cloning repository https://github.com/zeroclock/rust_tutorial_url [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zeroclock/rust_tutorial_url" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzeroclock%2Frust_tutorial_url", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzeroclock%2Frust_tutorial_url'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a21e0e05c229fdefb90557c4833c4fb2360a390e [INFO] checking zeroclock/rust_tutorial_url against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzeroclock%2Frust_tutorial_url" "/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/zeroclock/rust_tutorial_url on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/zeroclock/rust_tutorial_url [INFO] finished tweaking git repo https://github.com/zeroclock/rust_tutorial_url [INFO] tweaked toml for git repo https://github.com/zeroclock/rust_tutorial_url written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/zeroclock/rust_tutorial_url 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded pretty_env_logger v0.2.5 [INFO] [stderr] Downloaded syn v1.0.18 [INFO] [stderr] Downloaded regex v1.3.7 [INFO] [stderr] Downloaded backtrace-sys v0.1.37 [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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2577a6bc1d9ea3bbb9204875dd7a19ffee2e0b1a14ce34b65e4a93acfedcb1eb [INFO] running `Command { std: "docker" "start" "-a" "2577a6bc1d9ea3bbb9204875dd7a19ffee2e0b1a14ce34b65e4a93acfedcb1eb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2577a6bc1d9ea3bbb9204875dd7a19ffee2e0b1a14ce34b65e4a93acfedcb1eb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2577a6bc1d9ea3bbb9204875dd7a19ffee2e0b1a14ce34b65e4a93acfedcb1eb", kill_on_drop: false }` [INFO] [stdout] 2577a6bc1d9ea3bbb9204875dd7a19ffee2e0b1a14ce34b65e4a93acfedcb1eb [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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 08f5ed58d384316565fe68d93218bd5fd5a602447dd424fa91fc04eb3ef1f843 [INFO] running `Command { std: "docker" "start" "-a" "08f5ed58d384316565fe68d93218bd5fd5a602447dd424fa91fc04eb3ef1f843", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.69 [INFO] [stderr] Compiling proc-macro2 v1.0.12 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling cc v1.0.52 [INFO] [stderr] Compiling syn v1.0.18 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling num-integer v0.1.42 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking quick-error v1.2.3 [INFO] [stderr] Compiling unicode-segmentation v1.6.0 [INFO] [stderr] Checking matches v0.1.8 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking smallvec v1.4.0 [INFO] [stderr] Checking regex-syntax v0.6.17 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking humantime v1.3.0 [INFO] [stderr] Checking unicode-bidi v0.3.4 [INFO] [stderr] Checking unicode-normalization v0.1.12 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Checking rustc-demangle v0.1.16 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking termcolor v1.1.0 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking percent-encoding v1.0.1 [INFO] [stderr] Checking aho-corasick v0.7.10 [INFO] [stderr] Compiling backtrace-sys v0.1.37 [INFO] [stderr] Compiling quote v1.0.4 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Checking idna v0.1.5 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking url v1.7.2 [INFO] [stderr] Checking chrono v0.4.11 [INFO] [stderr] Checking backtrace v0.3.46 [INFO] [stderr] Checking regex v1.3.7 [INFO] [stderr] Checking env_logger v0.5.13 [INFO] [stderr] Compiling structopt-derive v0.2.18 [INFO] [stderr] Checking pretty_env_logger v0.2.5 [INFO] [stderr] Compiling synstructure v0.12.3 [INFO] [stderr] Checking structopt v0.2.18 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stderr] Checking url v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `pretty_env_logger` is imported redundantly [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use pretty_env_logger; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ the item `pretty_env_logger` 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 `pretty_env_logger` is imported redundantly [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use pretty_env_logger; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ the item `pretty_env_logger` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:31:5 [INFO] [stdout] | [INFO] [stdout] 31 | handle.read_to_string(&mut buf); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 31 | let _ = handle.read_to_string(&mut buf); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:48:9 [INFO] [stdout] | [INFO] [stdout] 48 | Opt::clap().print_help(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 48 | let _ = Opt::clap().print_help(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:31:5 [INFO] [stdout] | [INFO] [stdout] 31 | handle.read_to_string(&mut buf); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 31 | let _ = handle.read_to_string(&mut buf); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:48:9 [INFO] [stdout] | [INFO] [stdout] 48 | Opt::clap().print_help(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 48 | let _ = Opt::clap().print_help(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.02s [INFO] running `Command { std: "docker" "inspect" "08f5ed58d384316565fe68d93218bd5fd5a602447dd424fa91fc04eb3ef1f843", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "08f5ed58d384316565fe68d93218bd5fd5a602447dd424fa91fc04eb3ef1f843", kill_on_drop: false }` [INFO] [stdout] 08f5ed58d384316565fe68d93218bd5fd5a602447dd424fa91fc04eb3ef1f843