[INFO] updating cached repository https://github.com/ljcusack/rust-playpen
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] de9e77d2d9a207a506493bc2d739ac4e070c4465
[INFO] checking ljcusack/rust-playpen against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fljcusack%2Frust-playpen" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ljcusack/rust-playpen on toolchain c9edc02e8320a9e5799d185910ece7d491f524e6-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ljcusack/rust-playpen
[INFO] finished tweaking git repo https://github.com/ljcusack/rust-playpen
[INFO] tweaked toml for git repo https://github.com/ljcusack/rust-playpen written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/ljcusack/rust-playpen already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 38c14de39b89c1422705be6890b66d8b05843a97cf624b45fadbd3e56c2567e6
[INFO] running `"docker" "start" "-a" "38c14de39b89c1422705be6890b66d8b05843a97cf624b45fadbd3e56c2567e6"`
[INFO] [stderr]     Checking hello_world v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: chained comparison operators require parentheses
[INFO] [stderr]  --> src/bin/consumers.rs:3:46
[INFO] [stderr]   |
[INFO] [stderr] 3 |     let one_to_one_hundred = (1..101).collect<Vec<i32>>();
[INFO] [stderr]   |                                              ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: use `::<...>` instead of `<...>` if you meant to specify type arguments
[INFO] [stderr]   = help: or use `(...)` if you meant to specify fn arguments
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `size`
[INFO] [stderr]  --> src/bin/list.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     size: i32,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `head`
[INFO] [stderr]  --> src/bin/list.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     head: Link<T>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `item`
[INFO] [stderr]  --> src/bin/list.rs:9:4
[INFO] [stderr]   |
[INFO] [stderr] 9 |    item: T,
[INFO] [stderr]   |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `next`
[INFO] [stderr]   --> src/bin/list.rs:10:4
[INFO] [stderr]    |
[INFO] [stderr] 10 |    next: Link<T>,
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Morning`
[INFO] [stderr]   --> src/bin/match.rs:10:4
[INFO] [stderr]    |
[INFO] [stderr] 10 |    Morning(i32),
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Afternoon`
[INFO] [stderr]   --> src/bin/match.rs:12:4
[INFO] [stderr]    |
[INFO] [stderr] 12 |    Afternoon(i32),
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `hello_world`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: field is never used: `size`
[INFO] [stderr]  --> src/bin/list.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     size: i32,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `head`
[INFO] [stderr]  --> src/bin/list.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     head: Link<T>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `item`
[INFO] [stderr]  --> src/bin/list.rs:9:4
[INFO] [stderr]   |
[INFO] [stderr] 9 |    item: T,
[INFO] [stderr]   |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `next`
[INFO] [stderr]   --> src/bin/list.rs:10:4
[INFO] [stderr]    |
[INFO] [stderr] 10 |    next: Link<T>,
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "38c14de39b89c1422705be6890b66d8b05843a97cf624b45fadbd3e56c2567e6"`
[INFO] running `"docker" "rm" "-f" "38c14de39b89c1422705be6890b66d8b05843a97cf624b45fadbd3e56c2567e6"`
[INFO] [stdout] 38c14de39b89c1422705be6890b66d8b05843a97cf624b45fadbd3e56c2567e6