[INFO] updating cached repository https://github.com/Hindol/euler
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/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] 268290adaabf245f82356b12c42822ea9bbe6d2e
[INFO] testing Hindol/euler against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FHindol%2Feuler" "work/builds/worker-11/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Hindol/euler on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Hindol/euler
[INFO] finished tweaking git repo https://github.com/Hindol/euler
[INFO] tweaked toml for git repo https://github.com/Hindol/euler written to work/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/Hindol/euler already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/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=warn" "-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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 67726fa3ce9200fbcbf63b53538462e4bebf96f53f17ad9b4f0499715751fa0d
[INFO] running `"docker" "start" "-a" "67726fa3ce9200fbcbf63b53538462e4bebf96f53f17ad9b4f0499715751fa0d"`
[INFO] [stderr] warning: `panic` setting is ignored for `test` profile
[INFO] [stderr] warning: profile `doc` is deprecated and has no effect
[INFO] [stderr] warning: `panic` setting is ignored for `bench` profile
[INFO] [stderr]    Compiling permutohedron v0.2.2
[INFO] [stderr]    Compiling euler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: unexpected token: `...`
[INFO] [stderr]   --> src/main.rs:19:19
[INFO] [stderr]    |
[INFO] [stderr] 19 |         for i in 1...7 {
[INFO] [stderr]    |                   ^^^
[INFO] [stderr] help: use `..` for an exclusive range
[INFO] [stderr]    |
[INFO] [stderr] 19 |         for i in 1..7 {
[INFO] [stderr]    |                   ^^
[INFO] [stderr] help: or `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr] 19 |         for i in 1..=7 {
[INFO] [stderr]    |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] error: unexpected token: `...`
[INFO] [stderr]   --> src/main.rs:20:29
[INFO] [stderr]    |
[INFO] [stderr] 20 |             let num = perm[i...(i + 2)].iter().fold(0, |num, digit| { num * 10 + digit });
[INFO] [stderr]    |                             ^^^
[INFO] [stderr] help: use `..` for an exclusive range
[INFO] [stderr]    |
[INFO] [stderr] 20 |             let num = perm[i..(i + 2)].iter().fold(0, |num, digit| { num * 10 + digit });
[INFO] [stderr]    |                             ^^
[INFO] [stderr] help: or `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr] 20 |             let num = perm[i..=(i + 2)].iter().fold(0, |num, digit| { num * 10 + digit });
[INFO] [stderr]    |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::collections::range`
[INFO] [stderr]  --> src/main.rs:8:23
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::collections::range::RangeArgument;
[INFO] [stderr]   |                       ^^^^^ could not find `range` in `collections`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(collections_range)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(inclusive_range)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(inclusive_range_syntax)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::RangeInclusive`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::ops::RangeInclusive;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashSet`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::collections::HashSet;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 6 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `euler`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "67726fa3ce9200fbcbf63b53538462e4bebf96f53f17ad9b4f0499715751fa0d"`
[INFO] running `"docker" "rm" "-f" "67726fa3ce9200fbcbf63b53538462e4bebf96f53f17ad9b4f0499715751fa0d"`
[INFO] [stdout] 67726fa3ce9200fbcbf63b53538462e4bebf96f53f17ad9b4f0499715751fa0d