[INFO] cloning repository https://github.com/leokang28/rust_crash_course [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/leokang28/rust_crash_course" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleokang28%2Frust_crash_course", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleokang28%2Frust_crash_course'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 839a09465ba49ca150a3c8b4fbbbc3768fa1d14c [INFO] checking leokang28/rust_crash_course against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleokang28%2Frust_crash_course" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/leokang28/rust_crash_course 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/leokang28/rust_crash_course [INFO] finished tweaking git repo https://github.com/leokang28/rust_crash_course [INFO] tweaked toml for git repo https://github.com/leokang28/rust_crash_course written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/leokang28/rust_crash_course 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] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded instant v0.1.8 [INFO] [stderr] Downloaded crossbeam-utils v0.8.0 [INFO] [stderr] Downloaded const_fn v0.4.3 [INFO] [stderr] Downloaded async-io v1.2.0 [INFO] [stderr] Downloaded futures-lite v1.11.2 [INFO] [stderr] Downloaded gdk-pixbuf v0.8.0 [INFO] [stderr] Downloaded pango-sys v0.9.1 [INFO] [stderr] Downloaded atk-sys v0.9.1 [INFO] [stderr] Downloaded cairo-sys-rs v0.9.2 [INFO] [stderr] Downloaded gdk-pixbuf-sys v0.9.1 [INFO] [stderr] Downloaded pin-project-internal v1.0.1 [INFO] [stderr] Downloaded ncurses v5.99.0 [INFO] [stderr] Downloaded gio v0.8.1 [INFO] [stderr] Downloaded glib v0.9.3 [INFO] [stderr] Downloaded libc v0.2.80 [INFO] [stderr] Downloaded gtk v0.8.1 [INFO] [stderr] Downloaded gio-sys v0.9.1 [INFO] [stderr] Downloaded gtk-sys v0.9.2 [INFO] [stderr] Downloaded async-std v1.7.0 [INFO] [stderr] Downloaded pancurses v0.16.1 [INFO] [stderr] Downloaded atk v0.8.0 [INFO] [stderr] Downloaded cairo-rs v0.8.1 [INFO] [stderr] Downloaded gdk v0.12.1 [INFO] [stderr] Downloaded gdk-sys v0.9.1 [INFO] [stderr] Downloaded pin-project v1.0.1 [INFO] [stderr] Downloaded pango v0.8.0 [INFO] [stderr] Downloaded glib-sys v0.9.1 [INFO] [stderr] Downloaded gobject-sys v0.9.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 46f6731fe6f394f75bb0cd33ee14196b017a0211a2efa3e2c163366361d9d06e [INFO] running `Command { std: "docker" "start" "-a" "46f6731fe6f394f75bb0cd33ee14196b017a0211a2efa3e2c163366361d9d06e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "46f6731fe6f394f75bb0cd33ee14196b017a0211a2efa3e2c163366361d9d06e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "46f6731fe6f394f75bb0cd33ee14196b017a0211a2efa3e2c163366361d9d06e", kill_on_drop: false }` [INFO] [stdout] 46f6731fe6f394f75bb0cd33ee14196b017a0211a2efa3e2c163366361d9d06e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 98ec83eb1182d62abd2f9203983739b62fbbffcda496073b5f78c21f5a791872 [INFO] running `Command { std: "docker" "start" "-a" "98ec83eb1182d62abd2f9203983739b62fbbffcda496073b5f78c21f5a791872", kill_on_drop: false }` [INFO] [stderr] Compiling pkg-config v0.3.19 [INFO] [stderr] Compiling libc v0.2.80 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Checking futures-core v0.3.8 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.48 [INFO] [stderr] Checking once_cell v1.4.1 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Checking futures-io v0.3.8 [INFO] [stderr] Compiling proc-macro-nested v0.1.6 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Checking cache-padded v1.1.1 [INFO] [stderr] Checking fastrand v1.4.0 [INFO] [stderr] Checking futures-channel v0.3.8 [INFO] [stderr] Checking pin-project-lite v0.1.11 [INFO] [stderr] Checking concurrent-queue v1.2.2 [INFO] [stderr] Checking parking v2.0.0 [INFO] [stderr] Checking waker-fn v1.1.0 [INFO] [stderr] Compiling gio v0.8.1 [INFO] [stderr] Checking vec-arena v1.0.0 [INFO] [stderr] Compiling cc v1.0.61 [INFO] [stderr] Checking futures-task v0.3.8 [INFO] [stderr] Checking event-listener v2.5.1 [INFO] [stderr] Compiling gdk-pixbuf v0.8.0 [INFO] [stderr] Compiling cairo-rs v0.8.1 [INFO] [stderr] Compiling const_fn v0.4.3 [INFO] [stderr] Checking async-task v4.0.3 [INFO] [stderr] Compiling pango v0.8.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.0 [INFO] [stderr] Compiling gdk v0.12.1 [INFO] [stderr] Compiling atk v0.8.0 [INFO] [stderr] Checking async-channel v1.5.1 [INFO] [stderr] Compiling gtk v0.8.1 [INFO] [stderr] Compiling glib-sys v0.9.1 [INFO] [stderr] Compiling gobject-sys v0.9.1 [INFO] [stderr] Compiling gio-sys v0.9.1 [INFO] [stderr] Compiling pango-sys v0.9.1 [INFO] [stderr] Compiling cairo-sys-rs v0.9.2 [INFO] [stderr] Compiling gdk-pixbuf-sys v0.9.1 [INFO] [stderr] Compiling atk-sys v0.9.1 [INFO] [stderr] Compiling gdk-sys v0.9.1 [INFO] [stderr] Compiling gtk-sys v0.9.2 [INFO] [stderr] Checking futures-lite v1.11.2 [INFO] [stderr] Checking atomic-waker v1.0.0 [INFO] [stderr] Checking kv-log-macro v1.0.7 [INFO] [stderr] Checking async-mutex v1.4.0 [INFO] [stderr] Checking rust_crash_course v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking nb-connect v1.0.2 [INFO] [stderr] Checking polling v2.0.2 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> examples/borrow.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | struct Foo(i32); [INFO] [stdout] | --- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `Foo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 2 | struct Foo(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `use_vale` is never used [INFO] [stdout] --> examples/borrow.rs:16:4 [INFO] [stdout] | [INFO] [stdout] 16 | fn use_vale(v: &Foo) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking bouncy v0.1.0 (/opt/rustwide/workdir/bouncy) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> bouncy/src/parse_args.rs:8:20 [INFO] [stdout] | [INFO] [stdout] 8 | InvalidInteger(String), [INFO] [stdout] | -------------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 8 | InvalidInteger(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> examples/copy.rs:2:15 [INFO] [stdout] | [INFO] [stdout] 2 | struct Foobar(i32); [INFO] [stdout] | ------ ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `Foobar` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 2 | struct Foobar(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `chars` [INFO] [stdout] --> src/byteliteral.rs:12:13 [INFO] [stdout] | [INFO] [stdout] 12 | let chars = arg.chars(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_chars` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> bouncy/src/parse_args.rs:8:20 [INFO] [stdout] | [INFO] [stdout] 8 | InvalidInteger(String), [INFO] [stdout] | -------------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 8 | InvalidInteger(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `chars` [INFO] [stdout] --> src/byteliteral.rs:12:13 [INFO] [stdout] | [INFO] [stdout] 12 | let chars = arg.chars(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_chars` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> examples/lexical.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | struct Foo(i32); [INFO] [stdout] | --- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `Foo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 2 | struct Foo(()); [INFO] [stdout] | ~~ [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] Compiling ncurses v5.99.0 [INFO] [stderr] Checking async-io v1.2.0 [INFO] [stderr] Checking async-executor v1.4.0 [INFO] [stderr] Checking blocking v1.0.2 [INFO] [stderr] Checking async-global-executor v1.4.3 [INFO] [stderr] Checking pancurses v0.16.1 [INFO] [stderr] Checking bouncy4 v0.1.0 (/opt/rustwide/workdir/bouncy4) [INFO] [stderr] Compiling pin-project-internal v1.0.1 [INFO] [stderr] Compiling futures-macro v0.3.8 [INFO] [stderr] Compiling async-attributes v1.1.1 [INFO] [stderr] Checking async-std v1.7.0 [INFO] [stderr] Checking pin-project v1.0.1 [INFO] [stderr] Checking futures-util v0.3.8 [INFO] [stderr] Checking sleepus-interruptus v0.1.0 (/opt/rustwide/workdir/sleepus-interruptus) [INFO] [stdout] warning: unused variable: `ctx` [INFO] [stdout] --> sleepus-interruptus/src/main.rs:32:35 [INFO] [stdout] | [INFO] [stdout] 32 | fn poll(self: Pin<&mut Self>, ctx: &mut Context) -> Poll { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_ctx` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ctx` [INFO] [stdout] --> sleepus-interruptus/src/main.rs:32:35 [INFO] [stdout] | [INFO] [stdout] 32 | fn poll(self: Pin<&mut Self>, ctx: &mut Context) -> Poll { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_ctx` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused implementer of `Future` that must be used [INFO] [stdout] --> sleepus-interruptus/src/main.rs:66:5 [INFO] [stdout] | [INFO] [stdout] 66 | sleepus.await; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: futures do nothing unless you `.await` or poll them [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused implementer of `Future` that must be used [INFO] [stdout] --> sleepus-interruptus/src/main.rs:66:5 [INFO] [stdout] | [INFO] [stdout] 66 | sleepus.await; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: futures do nothing unless you `.await` or poll them [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [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] Checking futures-executor v0.3.8 [INFO] [stderr] Checking glib v0.9.3 [INFO] [stderr] Checking clicky v0.1.0 (/opt/rustwide/workdir/clicky) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 36.36s [INFO] running `Command { std: "docker" "inspect" "98ec83eb1182d62abd2f9203983739b62fbbffcda496073b5f78c21f5a791872", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "98ec83eb1182d62abd2f9203983739b62fbbffcda496073b5f78c21f5a791872", kill_on_drop: false }` [INFO] [stdout] 98ec83eb1182d62abd2f9203983739b62fbbffcda496073b5f78c21f5a791872 [INFO] checking leokang28/rust_crash_course against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleokang28%2Frust_crash_course" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/leokang28/rust_crash_course on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/leokang28/rust_crash_course [INFO] finished tweaking git repo https://github.com/leokang28/rust_crash_course [INFO] tweaked toml for git repo https://github.com/leokang28/rust_crash_course written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/leokang28/rust_crash_course 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7f1cdff84de9d47f9652a740ad04b0ae640b759e8a306cfa6ad6227803e5a784 [INFO] running `Command { std: "docker" "start" "-a" "7f1cdff84de9d47f9652a740ad04b0ae640b759e8a306cfa6ad6227803e5a784", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7f1cdff84de9d47f9652a740ad04b0ae640b759e8a306cfa6ad6227803e5a784", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7f1cdff84de9d47f9652a740ad04b0ae640b759e8a306cfa6ad6227803e5a784", kill_on_drop: false }` [INFO] [stdout] 7f1cdff84de9d47f9652a740ad04b0ae640b759e8a306cfa6ad6227803e5a784 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3cc9eb973ca53e5d6f6fb7f0eb6b5b78887db7aa8109beccdd28ddeeb7cd91b1 [INFO] running `Command { std: "docker" "start" "-a" "3cc9eb973ca53e5d6f6fb7f0eb6b5b78887db7aa8109beccdd28ddeeb7cd91b1", kill_on_drop: false }` [INFO] [stderr] Compiling pkg-config v0.3.19 [INFO] [stderr] Compiling libc v0.2.80 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Checking futures-core v0.3.8 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.48 [INFO] [stderr] Checking once_cell v1.4.1 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Checking pin-utils v0.1.0 [INFO] [stderr] Checking futures-io v0.3.8 [INFO] [stderr] Compiling proc-macro-nested v0.1.6 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Checking cache-padded v1.1.1 [INFO] [stderr] Checking fastrand v1.4.0 [INFO] [stderr] Checking concurrent-queue v1.2.2 [INFO] [stderr] Checking pin-project-lite v0.1.11 [INFO] [stderr] Checking waker-fn v1.1.0 [INFO] [stderr] Checking futures-channel v0.3.8 [INFO] [stderr] Checking parking v2.0.0 [INFO] [stderr] Checking futures-task v0.3.8 [INFO] [stderr] Compiling gio v0.8.1 [INFO] [stderr] Checking vec-arena v1.0.0 [INFO] [stderr] Compiling cairo-rs v0.8.1 [INFO] [stderr] Compiling pango v0.8.0 [INFO] [stderr] Compiling const_fn v0.4.3 [INFO] [stderr] Compiling gdk-pixbuf v0.8.0 [INFO] [stderr] Checking async-task v4.0.3 [INFO] [stderr] Checking event-listener v2.5.1 [INFO] [stderr] Compiling cc v1.0.61 [INFO] [stderr] Compiling crossbeam-utils v0.8.0 [INFO] [stderr] Compiling gdk v0.12.1 [INFO] [stderr] Compiling atk v0.8.0 [INFO] [stderr] Checking atomic-waker v1.0.0 [INFO] [stderr] Compiling gtk v0.8.1 [INFO] [stderr] Checking async-channel v1.5.1 [INFO] [stderr] Checking async-mutex v1.4.0 [INFO] [stderr] Checking rust_crash_course v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking bouncy v0.1.0 (/opt/rustwide/workdir/bouncy) [INFO] [stdout] warning: unused variable: `chars` [INFO] [stdout] --> src/byteliteral.rs:12:13 [INFO] [stdout] | [INFO] [stdout] 12 | let chars = arg.chars(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_chars` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling glib-sys v0.9.1 [INFO] [stderr] Compiling gobject-sys v0.9.1 [INFO] [stderr] Compiling gio-sys v0.9.1 [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> examples/lexical.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | struct Foo(i32); [INFO] [stdout] | --- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `Foo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 2 | struct Foo(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling cairo-sys-rs v0.9.2 [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> examples/borrow.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | struct Foo(i32); [INFO] [stdout] | --- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `Foo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 2 | struct Foo(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `use_vale` is never used [INFO] [stdout] --> examples/borrow.rs:16:4 [INFO] [stdout] | [INFO] [stdout] 16 | fn use_vale(v: &Foo) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> bouncy/src/parse_args.rs:8:20 [INFO] [stdout] | [INFO] [stdout] 8 | InvalidInteger(String), [INFO] [stdout] | -------------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 8 | InvalidInteger(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling gdk-pixbuf-sys v0.9.1 [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling pango-sys v0.9.1 [INFO] [stderr] Compiling gdk-sys v0.9.1 [INFO] [stderr] Compiling atk-sys v0.9.1 [INFO] [stderr] Compiling gtk-sys v0.9.2 [INFO] [stderr] Checking futures-lite v1.11.2 [INFO] [stderr] Checking kv-log-macro v1.0.7 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> examples/copy.rs:2:15 [INFO] [stdout] | [INFO] [stdout] 2 | struct Foobar(i32); [INFO] [stdout] | ------ ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `Foobar` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 2 | struct Foobar(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `chars` [INFO] [stdout] --> src/byteliteral.rs:12:13 [INFO] [stdout] | [INFO] [stdout] 12 | let chars = arg.chars(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_chars` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking nb-connect v1.0.2 [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> bouncy/src/parse_args.rs:8:20 [INFO] [stdout] | [INFO] [stdout] 8 | InvalidInteger(String), [INFO] [stdout] | -------------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 8 | InvalidInteger(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking polling v2.0.2 [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/futures-lite-1.11.2/src/future.rs:469:27 [INFO] [stdout] | [INFO] [stdout] 469 | let t1 = res1.map_err(|_| unreachable!()).unwrap(); [INFO] [stdout] | ^^^^^^^ cannot infer type of the type parameter `F` declared on the method `map_err` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 469 | let t1 = res1.map_err::(|_| unreachable!()).unwrap(); [INFO] [stdout] | ++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling ncurses v5.99.0 [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `futures-lite` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "3cc9eb973ca53e5d6f6fb7f0eb6b5b78887db7aa8109beccdd28ddeeb7cd91b1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3cc9eb973ca53e5d6f6fb7f0eb6b5b78887db7aa8109beccdd28ddeeb7cd91b1", kill_on_drop: false }` [INFO] [stdout] 3cc9eb973ca53e5d6f6fb7f0eb6b5b78887db7aa8109beccdd28ddeeb7cd91b1