[INFO] cloning repository https://github.com/GHvW/frothy-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GHvW/frothy-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGHvW%2Ffrothy-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGHvW%2Ffrothy-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f122bce431b431b33644d4fbc77b4e575cfd4016 [INFO] checking GHvW/frothy-rs against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGHvW%2Ffrothy-rs" "/workspace/builds/worker-14/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/GHvW/frothy-rs on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/GHvW/frothy-rs [INFO] finished tweaking git repo https://github.com/GHvW/frothy-rs [INFO] tweaked toml for git repo https://github.com/GHvW/frothy-rs written to /workspace/builds/worker-14/source/Cargo.toml [INFO] crate git repo https://github.com/GHvW/frothy-rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f460cb067ecb851a5b5f7df09dfdec908ee0234e9cbc0cd6117a794e40afd905 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "f460cb067ecb851a5b5f7df09dfdec908ee0234e9cbc0cd6117a794e40afd905", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f460cb067ecb851a5b5f7df09dfdec908ee0234e9cbc0cd6117a794e40afd905", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f460cb067ecb851a5b5f7df09dfdec908ee0234e9cbc0cd6117a794e40afd905", kill_on_drop: false }` [INFO] [stdout] f460cb067ecb851a5b5f7df09dfdec908ee0234e9cbc0cd6117a794e40afd905 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8a7be4744f5c12cf1c8d10681683c1b360f77e0701aed1b9bd676ab45358d90b [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "8a7be4744f5c12cf1c8d10681683c1b360f77e0701aed1b9bd676ab45358d90b", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Checking frothy_rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Read` [INFO] [stdout] --> src/main.rs:3:22 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::{Write, Read}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Read` [INFO] [stdout] --> src/main.rs:3:22 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::{Write, Read}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: `impl Stack` doesn't implement `Debug` [INFO] [stdout] --> src/main.rs:72:37 [INFO] [stdout] | [INFO] [stdout] 72 | println!("current stack: {:?}", *stack); [INFO] [stdout] | ^^^^^^ `impl Stack` cannot be formatted using `{:?}` because it doesn't implement `Debug` [INFO] [stdout] | [INFO] [stdout] = note: required by `std::fmt::Debug::fmt` [INFO] [stdout] = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] help: consider further restricting this bound [INFO] [stdout] | [INFO] [stdout] 71 | fn repl(stack: &mut impl Stack + Debug) -> () { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `frothy_rs` [INFO] [stdout] error[E0277]: `impl Stack` doesn't implement `Debug` [INFO] [stdout] --> src/main.rs:72:37 [INFO] [stdout] | [INFO] [stdout] 72 | println!("current stack: {:?}", *stack); [INFO] [stdout] | ^^^^^^ `impl Stack` cannot be formatted using `{:?}` because it doesn't implement `Debug` [INFO] [stdout] | [INFO] [stdout] = note: required by `std::fmt::Debug::fmt` [INFO] [stdout] = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] help: consider further restricting this bound [INFO] [stdout] | [INFO] [stdout] 71 | fn repl(stack: &mut impl Stack + Debug) -> () { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stdout] error: aborting due to previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "8a7be4744f5c12cf1c8d10681683c1b360f77e0701aed1b9bd676ab45358d90b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8a7be4744f5c12cf1c8d10681683c1b360f77e0701aed1b9bd676ab45358d90b", kill_on_drop: false }` [INFO] [stdout] 8a7be4744f5c12cf1c8d10681683c1b360f77e0701aed1b9bd676ab45358d90b