[INFO] cloning repository https://github.com/leshow/finger-tokio [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/leshow/finger-tokio" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleshow%2Ffinger-tokio", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleshow%2Ffinger-tokio'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6663b59d84d7cf64e6320e26afafea2793ec7da0 [INFO] checking leshow/finger-tokio against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleshow%2Ffinger-tokio" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/leshow/finger-tokio 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/leshow/finger-tokio [INFO] finished tweaking git repo https://github.com/leshow/finger-tokio [INFO] tweaked toml for git repo https://github.com/leshow/finger-tokio written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/leshow/finger-tokio 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] Downloading crates ... [INFO] [stderr] Downloaded iovec v0.1.0 [INFO] [stderr] Downloaded log v0.3.8 [INFO] [stderr] Downloaded byteorder v1.0.0 [INFO] [stderr] Downloaded tokio-core v0.1.8 [INFO] [stderr] Downloaded bytes v0.4.4 [INFO] [stderr] Downloaded num_cpus v1.6.2 [INFO] [stderr] Downloaded futures-cpupool v0.1.5 [INFO] [stderr] Downloaded advapi32-sys v0.1.2 [INFO] [stderr] Downloaded kernel32-sys v0.1.4 [INFO] [stderr] Downloaded mio v0.6.9 [INFO] [stderr] Downloaded winutil v0.1.0 [INFO] [stderr] Downloaded hostname v0.1.3 [INFO] [stderr] Downloaded rand v0.3.15 [INFO] [stderr] Downloaded lazycell v0.4.0 [INFO] [stderr] Downloaded cfg-if v0.1.1 [INFO] [stderr] Downloaded net2 v0.2.29 [INFO] [stderr] Downloaded scoped-tls v0.1.0 [INFO] [stderr] Downloaded libc v0.2.24 [INFO] [stderr] Downloaded futures v0.1.14 [INFO] [stderr] Downloaded tokio-io v0.1.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] e58573f86249ae863ed580ad89def57c0253f226f7581ab0ba964cca6feb5e96 [INFO] running `Command { std: "docker" "start" "-a" "e58573f86249ae863ed580ad89def57c0253f226f7581ab0ba964cca6feb5e96", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e58573f86249ae863ed580ad89def57c0253f226f7581ab0ba964cca6feb5e96", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e58573f86249ae863ed580ad89def57c0253f226f7581ab0ba964cca6feb5e96", kill_on_drop: false }` [INFO] [stdout] e58573f86249ae863ed580ad89def57c0253f226f7581ab0ba964cca6feb5e96 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] ce48fa1d90b8389c2cc5415312a6023a59a1d2edc5470f97a2e0d4243352d86f [INFO] running `Command { std: "docker" "start" "-a" "ce48fa1d90b8389c2cc5415312a6023a59a1d2edc5470f97a2e0d4243352d86f", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.24 [INFO] [stderr] Checking futures v0.1.14 [INFO] [stderr] Checking byteorder v1.0.0 [INFO] [stderr] Checking cfg-if v0.1.1 [INFO] [stderr] Checking log v0.3.8 [INFO] [stderr] Checking lazycell v0.4.0 [INFO] [stderr] Checking slab v0.3.0 [INFO] [stderr] Checking scoped-tls v0.1.0 [INFO] [stderr] Checking smallvec v0.2.1 [INFO] [stderr] Checking take v0.1.0 [INFO] [stderr] Checking iovec v0.1.0 [INFO] [stderr] Checking net2 v0.2.29 [INFO] [stderr] Checking rand v0.3.15 [INFO] [stderr] Checking num_cpus v1.6.2 [INFO] [stderr] Checking hostname v0.1.3 [INFO] [stderr] Checking bytes v0.4.4 [INFO] [stderr] Checking mio v0.6.9 [INFO] [stderr] Checking tokio-io v0.1.2 [INFO] [stderr] Checking tokio-service v0.1.0 [INFO] [stderr] Checking futures-cpupool v0.1.5 [INFO] [stderr] Checking tokio-core v0.1.8 [INFO] [stderr] Checking tokio-proto v0.1.1 [INFO] [stderr] Checking echo-proto v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `From` is imported redundantly [INFO] [stdout] --> src/error.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::convert::From; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `From` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `From` is imported redundantly [INFO] [stdout] --> src/error.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::convert::From; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `From` is already defined 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/error.rs:41:32 [INFO] [stdout] | [INFO] [stdout] 41 | fn cause(&self) -> Option<&Error> { [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] 41 | fn cause(&self) -> Option<&dyn Error> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/error.rs:41:32 [INFO] [stdout] | [INFO] [stdout] 41 | fn cause(&self) -> Option<&Error> { [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] 41 | fn cause(&self) -> Option<&dyn Error> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/error.rs:27:28 [INFO] [stdout] | [INFO] [stdout] 27 | fmt.write_str(self.description())?; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/error.rs:27:28 [INFO] [stdout] | [INFO] [stdout] 27 | fmt.write_str(self.description())?; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.57s [INFO] running `Command { std: "docker" "inspect" "ce48fa1d90b8389c2cc5415312a6023a59a1d2edc5470f97a2e0d4243352d86f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ce48fa1d90b8389c2cc5415312a6023a59a1d2edc5470f97a2e0d4243352d86f", kill_on_drop: false }` [INFO] [stdout] ce48fa1d90b8389c2cc5415312a6023a59a1d2edc5470f97a2e0d4243352d86f