[INFO] cloning repository https://github.com/FrankYang4/learning-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FrankYang4/learning-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFrankYang4%2Flearning-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFrankYang4%2Flearning-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 17008ef4e40720b3cc35879685621cb06d8b553b [INFO] testing FrankYang4/learning-rust against 1.49.0 for beta-1.50-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFrankYang4%2Flearning-rust" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/FrankYang4/learning-rust on toolchain 1.49.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/FrankYang4/learning-rust [INFO] finished tweaking git repo https://github.com/FrankYang4/learning-rust [INFO] tweaked toml for git repo https://github.com/FrankYang4/learning-rust written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/FrankYang4/learning-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4e8db80293a8ccebea1a6ba7992065890160c7dd0a2e726b8d37cd61f1f80bc3 [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" "4e8db80293a8ccebea1a6ba7992065890160c7dd0a2e726b8d37cd61f1f80bc3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4e8db80293a8ccebea1a6ba7992065890160c7dd0a2e726b8d37cd61f1f80bc3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4e8db80293a8ccebea1a6ba7992065890160c7dd0a2e726b8d37cd61f1f80bc3", kill_on_drop: false }` [INFO] [stdout] 4e8db80293a8ccebea1a6ba7992065890160c7dd0a2e726b8d37cd61f1f80bc3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f47a425841209fc4a43b8565da4c912edd70d45bf617302e60b1f27d4c316afb [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" "f47a425841209fc4a43b8565da4c912edd70d45bf617302e60b1f27d4c316afb", kill_on_drop: false }` [INFO] [stderr] Compiling learning_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.32s [INFO] running `Command { std: "docker" "inspect" "f47a425841209fc4a43b8565da4c912edd70d45bf617302e60b1f27d4c316afb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f47a425841209fc4a43b8565da4c912edd70d45bf617302e60b1f27d4c316afb", kill_on_drop: false }` [INFO] [stdout] f47a425841209fc4a43b8565da4c912edd70d45bf617302e60b1f27d4c316afb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] fa9d478ab4ea0140cf20ae0bc0a8b7fb2e01e5f9ff347bf4786f0ed20e4312f3 [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" "fa9d478ab4ea0140cf20ae0bc0a8b7fb2e01e5f9ff347bf4786f0ed20e4312f3", kill_on_drop: false }` [INFO] [stderr] Compiling learning_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> examples/match_pattern.rs:26:14 [INFO] [stdout] | [INFO] [stdout] 26 | d @ 1...5 => println!("weekday {}", d), [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> examples/boxes.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(box_syntax, box_patterns)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: unexpected token: `...` [INFO] [stdout] --> examples/for_loop.rs:3:15 [INFO] [stdout] | [INFO] [stdout] 3 | for i in 0...10 { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] help: use `..` for an exclusive range [INFO] [stdout] | [INFO] [stdout] 3 | for i in 0..10 { [INFO] [stdout] | ^^ [INFO] [stdout] help: or `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] 3 | for i in 0..=10 { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> examples/for_loop.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(inclusive_range_syntax)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `learning_rust` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> examples/vec.rs:23:13 [INFO] [stdout] | [INFO] [stdout] 23 | let mut v5 = &mut v4; [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: floating-point types cannot be used in patterns [INFO] [stdout] --> examples/match_pattern.rs:9:10 [INFO] [stdout] | [INFO] [stdout] 9 | (1.2, y) => println!("x is 1.2, y is {}", y), [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(illegal_floating_point_literal_pattern)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #41620 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stdout] warning: floating-point types cannot be used in patterns [INFO] [stdout] --> examples/match_pattern.rs:10:13 [INFO] [stdout] | [INFO] [stdout] 10 | (x, 4.3) => println!("x is {}, y is 4.3", x), [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #41620 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: floating-point types cannot be used in patterns [INFO] [stdout] --> examples/match_pattern.rs:9:10 [INFO] [stdout] | [INFO] [stdout] 9 | (1.2, y) => println!("x is 1.2, y is {}", y), [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #41620 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: unexpected token: `...` [INFO] [stdout] --> examples/array.rs:10:21 [INFO] [stdout] | [INFO] [stdout] 10 | &arr2[1...2]); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] help: use `..` for an exclusive range [INFO] [stdout] | [INFO] [stdout] 10 | &arr2[1..2]); [INFO] [stdout] | ^^ [INFO] [stdout] help: or `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] 10 | &arr2[1..=2]); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> examples/array.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(inclusive_range_syntax)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "fa9d478ab4ea0140cf20ae0bc0a8b7fb2e01e5f9ff347bf4786f0ed20e4312f3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fa9d478ab4ea0140cf20ae0bc0a8b7fb2e01e5f9ff347bf4786f0ed20e4312f3", kill_on_drop: false }` [INFO] [stdout] fa9d478ab4ea0140cf20ae0bc0a8b7fb2e01e5f9ff347bf4786f0ed20e4312f3