[INFO] fetching crate chao 0.1.0... [INFO] testing chao-0.1.0 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1 [INFO] extracting crate chao 0.1.0 into /workspace/builds/worker-0-tc1/source [INFO] started tweaking crates.io crate chao 0.1.0 [INFO] finished tweaking crates.io crate chao 0.1.0 [INFO] tweaked toml for crates.io crate chao 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate chao 0.1.0 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 35 packages to latest compatible versions [INFO] [stderr] Adding rustyline v1.0.0 (available: v17.0.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded colored v1.9.4 [INFO] [stderr] Downloaded libchao v0.1.0 [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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4e4a6f2a53c561f74bc5f87c681204a1762568878eca97ad6796c71069855a9b [INFO] running `Command { std: "docker" "start" "-a" "4e4a6f2a53c561f74bc5f87c681204a1762568878eca97ad6796c71069855a9b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4e4a6f2a53c561f74bc5f87c681204a1762568878eca97ad6796c71069855a9b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4e4a6f2a53c561f74bc5f87c681204a1762568878eca97ad6796c71069855a9b", kill_on_drop: false }` [INFO] [stdout] 4e4a6f2a53c561f74bc5f87c681204a1762568878eca97ad6796c71069855a9b [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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 687ad9465be04377d7ca072e3c6730a9531b07de2da6fe8f64c77b6d85265842 [INFO] running `Command { std: "docker" "start" "-a" "687ad9465be04377d7ca072e3c6730a9531b07de2da6fe8f64c77b6d85265842", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Compiling is-terminal v0.4.16 [INFO] [stderr] Compiling ascii v0.9.3 [INFO] [stderr] Compiling byteorder v1.5.0 [INFO] [stderr] Compiling memchr v2.7.5 [INFO] [stderr] Compiling bitflags v0.4.0 [INFO] [stderr] Compiling encode_unicode v0.1.3 [INFO] [stderr] Compiling unreachable v1.0.0 [INFO] [stderr] Compiling itertools v0.7.11 [INFO] [stderr] Compiling colored v1.9.4 [INFO] [stderr] Compiling nix v0.5.1 [INFO] [stderr] Compiling combine v3.8.1 [INFO] [stderr] Compiling rustyline v1.0.0 [INFO] [stderr] Compiling libchao v0.1.0 [INFO] [stdout] error[E0425]: cannot find value `rest` in this scope [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/libchao-0.1.0/src/env.rs:118:20 [INFO] [stdout] | [INFO] [stdout] 118 | [expr, rest..] => match self.eval(expr) { [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: if you meant to collect the rest of the slice in `rest`, use the at operator [INFO] [stdout] | [INFO] [stdout] 118 | [expr, rest @ ..] => match self.eval(expr) { [INFO] [stdout] | + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find value `rest` in this scope [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/libchao-0.1.0/src/env.rs:122:33 [INFO] [stdout] | [INFO] [stdout] 122 | for expr in rest.iter() { [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find value `rest` in this scope [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/libchao-0.1.0/src/env.rs:132:36 [INFO] [stdout] | [INFO] [stdout] 132 | self.bind_args(rest.to_vec(), arg_names.clone()); [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find value `tail` in this scope [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/libchao-0.1.0/src/env.rs:177:20 [INFO] [stdout] | [INFO] [stdout] 177 | [head, tail..] => tail.iter().fold(head.clone(), |acc, x| acc - x.clone()), [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: if you meant to collect the rest of the slice in `tail`, use the at operator [INFO] [stdout] | [INFO] [stdout] 177 | [head, tail @ ..] => tail.iter().fold(head.clone(), |acc, x| acc - x.clone()), [INFO] [stdout] | + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find value `tail` in this scope [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/libchao-0.1.0/src/env.rs:177:31 [INFO] [stdout] | [INFO] [stdout] 177 | [head, tail..] => tail.iter().fold(head.clone(), |acc, x| acc - x.clone()), [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find value `tail` in this scope [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/libchao-0.1.0/src/env.rs:197:20 [INFO] [stdout] | [INFO] [stdout] 197 | [head, tail..] => tail.iter().fold(head.clone(), |acc, x| acc / x.clone()), [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: if you meant to collect the rest of the slice in `tail`, use the at operator [INFO] [stdout] | [INFO] [stdout] 197 | [head, tail @ ..] => tail.iter().fold(head.clone(), |acc, x| acc / x.clone()), [INFO] [stdout] | + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find value `tail` in this scope [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/libchao-0.1.0/src/env.rs:197:31 [INFO] [stdout] | [INFO] [stdout] 197 | [head, tail..] => tail.iter().fold(head.clone(), |acc, x| acc / x.clone()), [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find value `tail` in this scope [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/libchao-0.1.0/src/env.rs:224:20 [INFO] [stdout] | [INFO] [stdout] 224 | [head, tail..] => Bool(tail.iter().all(|ref x| *x == head)), [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: if you meant to collect the rest of the slice in `tail`, use the at operator [INFO] [stdout] | [INFO] [stdout] 224 | [head, tail @ ..] => Bool(tail.iter().all(|ref x| *x == head)), [INFO] [stdout] | + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find value `tail` in this scope [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/libchao-0.1.0/src/env.rs:224:36 [INFO] [stdout] | [INFO] [stdout] 224 | [head, tail..] => Bool(tail.iter().all(|ref x| *x == head)), [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: `X..` patterns in slices are experimental [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/libchao-0.1.0/src/env.rs:118:20 [INFO] [stdout] | [INFO] [stdout] 118 | [expr, rest..] => match self.eval(expr) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #67264 for more information [INFO] [stdout] = help: add `#![feature(half_open_range_patterns_in_slices)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-27; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: `X..` patterns in slices are experimental [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/libchao-0.1.0/src/env.rs:177:20 [INFO] [stdout] | [INFO] [stdout] 177 | [head, tail..] => tail.iter().fold(head.clone(), |acc, x| acc - x.clone()), [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #67264 for more information [INFO] [stdout] = help: add `#![feature(half_open_range_patterns_in_slices)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-27; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: `X..` patterns in slices are experimental [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/libchao-0.1.0/src/env.rs:197:20 [INFO] [stdout] | [INFO] [stdout] 197 | [head, tail..] => tail.iter().fold(head.clone(), |acc, x| acc / x.clone()), [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #67264 for more information [INFO] [stdout] = help: add `#![feature(half_open_range_patterns_in_slices)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-27; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: `X..` patterns in slices are experimental [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/libchao-0.1.0/src/env.rs:224:20 [INFO] [stdout] | [INFO] [stdout] 224 | [head, tail..] => Bool(tail.iter().all(|ref x| *x == head)), [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #67264 for more information [INFO] [stdout] = help: add `#![feature(half_open_range_patterns_in_slices)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-27; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0425, E0658. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0425`. [INFO] [stdout] [INFO] [stderr] error: could not compile `libchao` (lib) due to 13 previous errors [INFO] running `Command { std: "docker" "inspect" "687ad9465be04377d7ca072e3c6730a9531b07de2da6fe8f64c77b6d85265842", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "687ad9465be04377d7ca072e3c6730a9531b07de2da6fe8f64c77b6d85265842", kill_on_drop: false }` [INFO] [stdout] 687ad9465be04377d7ca072e3c6730a9531b07de2da6fe8f64c77b6d85265842