[INFO] cloning repository https://github.com/AsterixxxGallier/positional-lists
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AsterixxxGallier/positional-lists" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAsterixxxGallier%2Fpositional-lists", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAsterixxxGallier%2Fpositional-lists'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0c297df88838548568e44012a83e6c08b4a3a2cc
[INFO] checking AsterixxxGallier/positional-lists against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAsterixxxGallier%2Fpositional-lists" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AsterixxxGallier/positional-lists
[INFO] finished tweaking git repo https://github.com/AsterixxxGallier/positional-lists
[INFO] tweaked toml for git repo https://github.com/AsterixxxGallier/positional-lists written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AsterixxxGallier/positional-lists on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AsterixxxGallier/positional-lists already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1927010f1014dffa57d0ff7109a44ebc9d0ea3c49d39af14a44a56a0ebc0cd37
[INFO] running `Command { std: "docker" "start" "-a" "1927010f1014dffa57d0ff7109a44ebc9d0ea3c49d39af14a44a56a0ebc0cd37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1927010f1014dffa57d0ff7109a44ebc9d0ea3c49d39af14a44a56a0ebc0cd37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1927010f1014dffa57d0ff7109a44ebc9d0ea3c49d39af14a44a56a0ebc0cd37", kill_on_drop: false }`
[INFO] [stdout] 1927010f1014dffa57d0ff7109a44ebc9d0ea3c49d39af14a44a56a0ebc0cd37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44d230bb8df67e1905036196c687422e1e7af717590d45867290ddcde86322d7
[INFO] running `Command { std: "docker" "start" "-a" "44d230bb8df67e1905036196c687422e1e7af717590d45867290ddcde86322d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling slotmap v1.0.7
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling enum_dispatch v0.3.12
[INFO] [stderr]     Checking positional-lists v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(trait_alias)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(trait_alias)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `isolate_most_least_significant_one`
[INFO] [stdout]   --> src/span_tree/mod.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     end.isolate_lowest_one()
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #136909 <https://github.com/rust-lang/rust/issues/136909> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `isolate_most_least_significant_one`
[INFO] [stdout]   --> src/span_tree/mod.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |     len.isolate_highest_one().trailing_zeros()
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #136909 <https://github.com/rust-lang/rust/issues/136909> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `isolate_most_least_significant_one`
[INFO] [stdout]    --> src/span_tree/mod.rs:127:33
[INFO] [stdout]     |
[INFO] [stdout] 127 |         let mask = (differences.isolate_highest_one() << 1).wrapping_sub(1);
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #136909 <https://github.com/rust-lang/rust/issues/136909> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `isolate_most_least_significant_one`
[INFO] [stdout]    --> src/span_tree/mod.rs:138:34
[INFO] [stdout]     |
[INFO] [stdout] 138 |         let mask = !(differences.isolate_highest_one() << 1).wrapping_sub(1);
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #136909 <https://github.com/rust-lang/rust/issues/136909> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `positional-lists` (lib) due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0658]: use of unstable library feature `isolate_most_least_significant_one`
[INFO] [stdout]   --> src/span_tree/mod.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     end.isolate_lowest_one()
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #136909 <https://github.com/rust-lang/rust/issues/136909> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `isolate_most_least_significant_one`
[INFO] [stdout]   --> src/span_tree/mod.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |     len.isolate_highest_one().trailing_zeros()
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #136909 <https://github.com/rust-lang/rust/issues/136909> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `isolate_most_least_significant_one`
[INFO] [stdout]    --> src/span_tree/mod.rs:127:33
[INFO] [stdout]     |
[INFO] [stdout] 127 |         let mask = (differences.isolate_highest_one() << 1).wrapping_sub(1);
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #136909 <https://github.com/rust-lang/rust/issues/136909> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `isolate_most_least_significant_one`
[INFO] [stdout]    --> src/span_tree/mod.rs:138:34
[INFO] [stdout]     |
[INFO] [stdout] 138 |         let mask = !(differences.isolate_highest_one() << 1).wrapping_sub(1);
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #136909 <https://github.com/rust-lang/rust/issues/136909> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `positional-lists` (lib test) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "44d230bb8df67e1905036196c687422e1e7af717590d45867290ddcde86322d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44d230bb8df67e1905036196c687422e1e7af717590d45867290ddcde86322d7", kill_on_drop: false }`
[INFO] [stdout] 44d230bb8df67e1905036196c687422e1e7af717590d45867290ddcde86322d7
