[INFO] cloning repository https://github.com/kodek16/rs-view-tracker [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kodek16/rs-view-tracker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkodek16%2Frs-view-tracker", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkodek16%2Frs-view-tracker'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] de52bbe24b285feba1f0241792f746cc2943effa [INFO] checking kodek16/rs-view-tracker against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkodek16%2Frs-view-tracker" "/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/kodek16/rs-view-tracker 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/kodek16/rs-view-tracker [INFO] finished tweaking git repo https://github.com/kodek16/rs-view-tracker [INFO] tweaked toml for git repo https://github.com/kodek16/rs-view-tracker written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/kodek16/rs-view-tracker 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 tokio v0.1.5 [INFO] [stderr] Downloaded tokio-timer v0.2.1 [INFO] [stderr] Downloaded parse-zoneinfo v0.1.1 [INFO] [stderr] Downloaded tokio-threadpool v0.1.2 [INFO] [stderr] Downloaded chrono v0.4.1 [INFO] [stderr] Downloaded hyper v0.11.25 [INFO] [stderr] Downloaded chrono-tz v0.4.1 [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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] eaafdcc6f4aa6340f4ff6f07b7738ea8baeba2e575c114049812f8cc99db02bf [INFO] running `Command { std: "docker" "start" "-a" "eaafdcc6f4aa6340f4ff6f07b7738ea8baeba2e575c114049812f8cc99db02bf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "eaafdcc6f4aa6340f4ff6f07b7738ea8baeba2e575c114049812f8cc99db02bf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eaafdcc6f4aa6340f4ff6f07b7738ea8baeba2e575c114049812f8cc99db02bf", kill_on_drop: false }` [INFO] [stdout] eaafdcc6f4aa6340f4ff6f07b7738ea8baeba2e575c114049812f8cc99db02bf [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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8dc24925faf1a61a3d1b29014307ab05518e0f7dee5395b9781469bfe27517e8 [INFO] running `Command { std: "docker" "start" "-a" "8dc24925faf1a61a3d1b29014307ab05518e0f7dee5395b9781469bfe27517e8", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.40 [INFO] [stderr] Checking cfg-if v0.1.2 [INFO] [stderr] Checking futures v0.1.21 [INFO] [stderr] Checking byteorder v1.2.2 [INFO] [stderr] Checking slab v0.4.0 [INFO] [stderr] Checking nodrop v0.1.12 [INFO] [stderr] Checking lazycell v0.6.0 [INFO] [stderr] Checking lazy_static v1.0.0 [INFO] [stderr] Checking log v0.4.1 [INFO] [stderr] Checking arrayvec v0.4.7 [INFO] [stderr] Checking crossbeam-utils v0.3.2 [INFO] [stderr] Compiling void v1.0.2 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Compiling unreachable v1.0.0 [INFO] [stderr] Checking crossbeam-utils v0.2.2 [INFO] [stderr] Compiling ucd-util v0.1.1 [INFO] [stderr] Compiling regex v0.2.10 [INFO] [stderr] Compiling thread_local v0.3.5 [INFO] [stderr] Checking crossbeam-epoch v0.4.1 [INFO] [stderr] Compiling regex-syntax v0.5.3 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking net2 v0.2.32 [INFO] [stderr] Checking bytes v0.4.6 [INFO] [stderr] Compiling memchr v2.0.1 [INFO] [stderr] Checking rand v0.4.2 [INFO] [stderr] Checking num_cpus v1.8.0 [INFO] [stderr] Compiling aho-corasick v0.6.4 [INFO] [stderr] Checking crossbeam-deque v0.3.0 [INFO] [stderr] Compiling version_check v0.1.3 [INFO] [stderr] Checking mio v0.6.14 [INFO] [stderr] Compiling utf8-ranges v1.0.0 [INFO] [stderr] Compiling proc-macro2 v0.3.5 [INFO] [stderr] Checking time v0.1.39 [INFO] [stderr] Checking scoped-tls v0.1.1 [INFO] [stderr] Compiling unicase v2.1.0 [INFO] [stderr] Checking num-traits v0.2.2 [INFO] [stderr] Compiling quote v0.5.1 [INFO] [stderr] Checking rand v0.3.22 [INFO] [stderr] Checking log v0.3.9 [INFO] [stderr] Checking tokio-executor v0.1.2 [INFO] [stderr] Checking tokio-io v0.1.6 [INFO] [stderr] Compiling syn v0.13.1 [INFO] [stderr] Checking tokio-service v0.1.0 [INFO] [stderr] Checking tokio-timer v0.2.1 [INFO] [stderr] Checking tokio-threadpool v0.1.2 [INFO] [stderr] Checking num-integer v0.1.36 [INFO] [stderr] Checking smallvec v0.2.1 [INFO] [stderr] Checking slab v0.3.0 [INFO] [stderr] Checking safemem v0.2.0 [INFO] [stderr] Checking take v0.1.0 [INFO] [stderr] Checking tokio-reactor v0.1.1 [INFO] [stderr] Checking base64 v0.9.0 [INFO] [stderr] Checking chrono v0.4.1 [INFO] [stderr] Checking mime v0.3.5 [INFO] [stderr] Checking futures-cpupool v0.1.8 [INFO] [stderr] Checking relay v0.1.1 [INFO] [stderr] Checking percent-encoding v1.0.1 [INFO] [stderr] Checking language-tags v0.2.2 [INFO] [stderr] Checking serde v1.0.37 [INFO] [stderr] Checking httparse v1.2.4 [INFO] [stderr] Checking tokio-tcp v0.1.0 [INFO] [stderr] Checking tokio-udp v0.1.0 [INFO] [stderr] Checking tokio v0.1.5 [INFO] [stderr] Checking tokio-core v0.1.16 [INFO] [stderr] Checking tokio-proto v0.1.1 [INFO] [stderr] Compiling serde_derive_internals v0.23.0 [INFO] [stderr] Checking hyper v0.11.25 [INFO] [stderr] Compiling parse-zoneinfo v0.1.1 [INFO] [stderr] Compiling serde_derive v1.0.37 [INFO] [stderr] Compiling chrono-tz v0.4.1 [INFO] [stderr] Checking toml v0.4.6 [INFO] [stderr] Checking rs-view-tracker v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `toml` is imported redundantly [INFO] [stdout] --> src/config.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use toml; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/main.rs:5:1 [INFO] [stdout] | [INFO] [stdout] 5 | extern crate toml; [INFO] [stdout] | ------------------ the item `toml` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `toml` is imported redundantly [INFO] [stdout] --> src/config.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use toml; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/main.rs:5:1 [INFO] [stdout] | [INFO] [stdout] 5 | extern crate toml; [INFO] [stdout] | ------------------ the item `toml` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:38:23 [INFO] [stdout] | [INFO] [stdout] 38 | type Future = Box>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 38 | type Future = Box>; [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:38:23 [INFO] [stdout] | [INFO] [stdout] 38 | type Future = Box>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 38 | type Future = Box>; [INFO] [stdout] | +++ [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 5.78s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.13.1 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3` [INFO] running `Command { std: "docker" "inspect" "8dc24925faf1a61a3d1b29014307ab05518e0f7dee5395b9781469bfe27517e8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8dc24925faf1a61a3d1b29014307ab05518e0f7dee5395b9781469bfe27517e8", kill_on_drop: false }` [INFO] [stdout] 8dc24925faf1a61a3d1b29014307ab05518e0f7dee5395b9781469bfe27517e8 [INFO] checking kodek16/rs-view-tracker against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkodek16%2Frs-view-tracker" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/kodek16/rs-view-tracker 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/kodek16/rs-view-tracker [INFO] finished tweaking git repo https://github.com/kodek16/rs-view-tracker [INFO] tweaked toml for git repo https://github.com/kodek16/rs-view-tracker written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/kodek16/rs-view-tracker 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 36094268b44750df2ba9474a0d8c381bd73446bfbb90eb2afb74c7b182be903e [INFO] running `Command { std: "docker" "start" "-a" "36094268b44750df2ba9474a0d8c381bd73446bfbb90eb2afb74c7b182be903e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "36094268b44750df2ba9474a0d8c381bd73446bfbb90eb2afb74c7b182be903e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "36094268b44750df2ba9474a0d8c381bd73446bfbb90eb2afb74c7b182be903e", kill_on_drop: false }` [INFO] [stdout] 36094268b44750df2ba9474a0d8c381bd73446bfbb90eb2afb74c7b182be903e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 642e350acb892816dbb17218dd0c3b0742120107077a4228862dbe31b53ef91a [INFO] running `Command { std: "docker" "start" "-a" "642e350acb892816dbb17218dd0c3b0742120107077a4228862dbe31b53ef91a", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.40 [INFO] [stderr] Checking cfg-if v0.1.2 [INFO] [stderr] Checking futures v0.1.21 [INFO] [stderr] Checking byteorder v1.2.2 [INFO] [stderr] Checking nodrop v0.1.12 [INFO] [stderr] Checking slab v0.4.0 [INFO] [stderr] Checking lazycell v0.6.0 [INFO] [stderr] Checking lazy_static v1.0.0 [INFO] [stderr] Checking log v0.4.1 [INFO] [stderr] Checking arrayvec v0.4.7 [INFO] [stderr] Checking crossbeam-utils v0.3.2 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Compiling void v1.0.2 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Checking crossbeam-utils v0.2.2 [INFO] [stderr] Compiling unreachable v1.0.0 [INFO] [stderr] Compiling ucd-util v0.1.1 [INFO] [stderr] Compiling regex v0.2.10 [INFO] [stderr] Compiling version_check v0.1.3 [INFO] [stderr] Compiling thread_local v0.3.5 [INFO] [stderr] Checking crossbeam-epoch v0.4.1 [INFO] [stderr] Compiling regex-syntax v0.5.3 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking bytes v0.4.6 [INFO] [stderr] Checking net2 v0.2.32 [INFO] [stderr] Compiling memchr v2.0.1 [INFO] [stderr] Checking num_cpus v1.8.0 [INFO] [stderr] Checking rand v0.4.2 [INFO] [stderr] Checking crossbeam-deque v0.3.0 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/bytes-0.4.6/src/bytes.rs:2116:17 [INFO] [stdout] | [INFO] [stdout] 2116 | panic!(); // TODO: abort [INFO] [stdout] | ^^^^^^^^ cannot infer type [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling aho-corasick v0.6.4 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling utf8-ranges v1.0.0 [INFO] [stderr] Checking mio v0.6.14 [INFO] [stderr] Compiling proc-macro2 v0.3.5 [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `bytes` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/mio-0.6.14/src/poll.rs:2065:13 [INFO] [stdout] | [INFO] [stdout] 2065 | panic!(); [INFO] [stdout] | ^^^^^^^^ cannot infer type [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [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 `mio` (lib) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "642e350acb892816dbb17218dd0c3b0742120107077a4228862dbe31b53ef91a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "642e350acb892816dbb17218dd0c3b0742120107077a4228862dbe31b53ef91a", kill_on_drop: false }` [INFO] [stdout] 642e350acb892816dbb17218dd0c3b0742120107077a4228862dbe31b53ef91a