[INFO] fetching crate libscroll 0.2.4... [INFO] testing libscroll-0.2.4 against beta-2022-04-10 for beta-1.61-1 [INFO] extracting crate libscroll 0.2.4 into /workspace/builds/worker-19/source [INFO] validating manifest of crates.io crate libscroll 0.2.4 on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate libscroll 0.2.4 [INFO] finished tweaking crates.io crate libscroll 0.2.4 [INFO] tweaked toml for crates.io crate libscroll 0.2.4 written to /workspace/builds/worker-19/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 03a47d86a433fece80c4f57c2c65099b46fe4f90c549fe6adcbc9577a3e65d62 [INFO] running `Command { std: "docker" "start" "-a" "03a47d86a433fece80c4f57c2c65099b46fe4f90c549fe6adcbc9577a3e65d62", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "03a47d86a433fece80c4f57c2c65099b46fe4f90c549fe6adcbc9577a3e65d62", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "03a47d86a433fece80c4f57c2c65099b46fe4f90c549fe6adcbc9577a3e65d62", kill_on_drop: false }` [INFO] [stdout] 03a47d86a433fece80c4f57c2c65099b46fe4f90c549fe6adcbc9577a3e65d62 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6131aac696bc43895acb443a9f86386bc26668edf197b83a7b98126b4555b7b7 [INFO] running `Command { std: "docker" "start" "-a" "6131aac696bc43895acb443a9f86386bc26668edf197b83a7b98126b4555b7b7", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Compiling roots v0.0.6 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling tini v0.1.1 [INFO] [stderr] Compiling dirs-sys v0.3.7 [INFO] [stderr] Compiling itertools v0.8.2 [INFO] [stderr] Compiling dirs v4.0.0 [INFO] [stderr] Compiling xdg v2.4.1 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling num-bigint v0.2.6 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Compiling app_dirs v1.2.1 [INFO] [stderr] Compiling flo_curves v0.3.1 [INFO] [stderr] Compiling num v0.2.1 [INFO] [stderr] Compiling libscroll v0.2.4 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(map_first_last)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:2:1 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(half_open_range_patterns)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::borrow::Borrow` [INFO] [stdout] --> src/interpolate.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::borrow::Borrow; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs::File` [INFO] [stdout] --> src/lib.rs:33:5 [INFO] [stdout] | [INFO] [stdout] 33 | use std::fs::File; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(map_first_last)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/interpolate.rs:157:9 [INFO] [stdout] | [INFO] [stdout] 155 | return; [INFO] [stdout] | ------ any code following this expression is unreachable [INFO] [stdout] 156 | [INFO] [stdout] 157 | / println!("Current events are {{{}}}", [INFO] [stdout] 158 | | self.events.iter().fold( [INFO] [stdout] 159 | | String::new(), |s, evt| { s.to_owned() + &evt.to_string()[..] })); [INFO] [stdout] | |______________________________________________________________________________________^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] = note: this warning originates in the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/interpolate.rs:806:9 [INFO] [stdout] | [INFO] [stdout] 805 | panic!("not implemented"); [INFO] [stdout] | ------------------------- any code following this expression is unreachable [INFO] [stdout] 806 | 0.0 [INFO] [stdout] | ^^^ unreachable expression [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::prelude` [INFO] [stdout] --> src/lib.rs:34:5 [INFO] [stdout] | [INFO] [stdout] 34 | use std::io::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 3 previous errors; 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `libscroll` due to 4 previous errors; 5 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "6131aac696bc43895acb443a9f86386bc26668edf197b83a7b98126b4555b7b7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6131aac696bc43895acb443a9f86386bc26668edf197b83a7b98126b4555b7b7", kill_on_drop: false }` [INFO] [stdout] 6131aac696bc43895acb443a9f86386bc26668edf197b83a7b98126b4555b7b7