[INFO] cloning repository https://github.com/jaspajjr/rust_learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jaspajjr/rust_learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaspajjr%2Frust_learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaspajjr%2Frust_learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dd5d70acf58db1cba48b6b5158bc769188ac031c
[INFO] checking jaspajjr/rust_learning against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaspajjr%2Frust_learning" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jaspajjr/rust_learning on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jaspajjr/rust_learning
[INFO] finished tweaking git repo https://github.com/jaspajjr/rust_learning
[INFO] tweaked toml for git repo https://github.com/jaspajjr/rust_learning written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/jaspajjr/rust_learning already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34098c4c1a25fd984143e7814c110a4ddaa1696899aa401ad36833a1410dd1c7
[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" "34098c4c1a25fd984143e7814c110a4ddaa1696899aa401ad36833a1410dd1c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34098c4c1a25fd984143e7814c110a4ddaa1696899aa401ad36833a1410dd1c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34098c4c1a25fd984143e7814c110a4ddaa1696899aa401ad36833a1410dd1c7", kill_on_drop: false }`
[INFO] [stdout] 34098c4c1a25fd984143e7814c110a4ddaa1696899aa401ad36833a1410dd1c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef6232a4df8b5c56a42ed5c0d5f255961d171c8f737bcbd7bdcae3302d3df80e
[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" "ef6232a4df8b5c56a42ed5c0d5f255961d171c8f737bcbd7bdcae3302d3df80e", kill_on_drop: false }`
[INFO] [stderr]     Checking sieve v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: can't compare `&bool` with `bool`
[INFO] [stdout]   --> src/main.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |         if item == true {
[INFO] [stdout]    |                 ^^ no implementation for `&bool == bool`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `PartialEq<bool>` is not implemented for `&bool`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: can't compare `&bool` with `bool`
[INFO] [stdout]   --> src/main.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |         if item == true {
[INFO] [stdout]    |                 ^^ no implementation for `&bool == bool`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `PartialEq<bool>` is not implemented for `&bool`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:14:28
[INFO] [stdout]    |
[INFO] [stdout] 14 |             for n in (i*i..num).step_by(i) {
[INFO] [stdout]    |                            ^^^ expected `usize`, found `i32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:14:28
[INFO] [stdout]    |
[INFO] [stdout] 14 |             for n in (i*i..num).step_by(i) {
[INFO] [stdout]    |                            ^^^ expected `usize`, found `i32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sieve`
[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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ef6232a4df8b5c56a42ed5c0d5f255961d171c8f737bcbd7bdcae3302d3df80e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef6232a4df8b5c56a42ed5c0d5f255961d171c8f737bcbd7bdcae3302d3df80e", kill_on_drop: false }`
[INFO] [stdout] ef6232a4df8b5c56a42ed5c0d5f255961d171c8f737bcbd7bdcae3302d3df80e