[INFO] cloning repository https://github.com/cursorweb/Europa-Lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cursorweb/Europa-Lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcursorweb%2FEuropa-Lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcursorweb%2FEuropa-Lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 993eb9fe1ff3a69eae2ac90c2e5e0559df606b80
[INFO] checking cursorweb/Europa-Lang against try#9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869 for pr-129249
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcursorweb%2FEuropa-Lang" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cursorweb/Europa-Lang on toolchain 9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cursorweb/Europa-Lang
[INFO] finished tweaking git repo https://github.com/cursorweb/Europa-Lang
[INFO] tweaked toml for git repo https://github.com/cursorweb/Europa-Lang written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/cursorweb/Europa-Lang 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" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aea1eb97e292640a3aac9a7fca9c3f4fcb273a6d863093aef06ae4f0df1fd6fc
[INFO] running `Command { std: "docker" "start" "-a" "aea1eb97e292640a3aac9a7fca9c3f4fcb273a6d863093aef06ae4f0df1fd6fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aea1eb97e292640a3aac9a7fca9c3f4fcb273a6d863093aef06ae4f0df1fd6fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aea1eb97e292640a3aac9a7fca9c3f4fcb273a6d863093aef06ae4f0df1fd6fc", kill_on_drop: false }`
[INFO] [stdout] aea1eb97e292640a3aac9a7fca9c3f4fcb273a6d863093aef06ae4f0df1fd6fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06e1a34dfee8b8025614d144dfe7dbb7296563078ab05c416cf75748c2f43910
[INFO] running `Command { std: "docker" "start" "-a" "06e1a34dfee8b8025614d144dfe7dbb7296563078ab05c416cf75748c2f43910", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking iana-time-zone v0.1.60
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking unicode-segmentation v1.8.0
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking fd-lock v3.0.2
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking rustyline v9.1.1
[INFO] [stderr]     Checking europa-lang v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this conversion is useless `String` to `String`
[INFO] [stdout]   --> src/functions/user.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 | /         format!(
[INFO] [stdout] 78 | |             "<User Fn {}>",
[INFO] [stdout] 79 | |             match &self.name.ttype {
[INFO] [stdout] 80 | |                 TType::Identifier(s) => s,
[INFO] [stdout] ...  |
[INFO] [stdout] 84 | |         .into()
[INFO] [stdout]    | |_______________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `String` to `String`
[INFO] [stdout]    --> src/interpreter.rs:286:29
[INFO] [stdout]     |
[INFO] [stdout] 286 | / ...                   format!(
[INFO] [stdout] 287 | | ...                       "Expected {} argument{}, but got {}.",
[INFO] [stdout] 288 | | ...                       ar,
[INFO] [stdout] 289 | | ...                       if ar == 1 { "" } else { "s" },
[INFO] [stdout] ...   |
[INFO] [stdout] 292 | | ...                   .into(),
[INFO] [stdout]     | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `String` to `String`
[INFO] [stdout]    --> src/interpreter.rs:399:33
[INFO] [stdout]     |
[INFO] [stdout] 399 | / ...                   format!(
[INFO] [stdout] 400 | | ...                       "The item '{}' does not exist in the module '{}'.",
[INFO] [stdout] 401 | | ...                       prop_string, module.name
[INFO] [stdout] 402 | | ...                   )
[INFO] [stdout] 403 | | ...                   .into(),
[INFO] [stdout]     | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `String` to `String`
[INFO] [stdout]    --> src/parser.rs:212:35
[INFO] [stdout]     |
[INFO] [stdout] 212 |         self.consume(TType::Semi, format!("Expected ';' after {}", stype).into())?;
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `String` to `String`
[INFO] [stdout]    --> src/parser.rs:703:17
[INFO] [stdout]     |
[INFO] [stdout] 703 |                 format!("Expected '(' after {}", kind).into(),
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `String` to `String`
[INFO] [stdout]    --> src/resolver.rs:134:45
[INFO] [stdout]     |
[INFO] [stdout] 134 | / ...                   format!(
[INFO] [stdout] 135 | | ...                       "The item '{}' does not exist in the module '{}'.",
[INFO] [stdout] 136 | | ...                       name_string, name
[INFO] [stdout] 137 | | ...                   )
[INFO] [stdout] 138 | | ...                   .into(),
[INFO] [stdout]     | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `String` to `String`
[INFO] [stdout]   --> src/types/array.rs:36:25
[INFO] [stdout]    |
[INFO] [stdout] 36 |                         format!("Only whole numbers are valid index ranges (got {}).", i).into(),
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `String` to `String`
[INFO] [stdout]   --> src/types/array.rs:51:25
[INFO] [stdout]    |
[INFO] [stdout] 51 |                         format!("Index {} out of array range 0-{}.", i, len - 1).into(),
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `europa-lang` (bin "europa-lang") due to 8 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this conversion is useless `String` to `String`
[INFO] [stdout]   --> src/functions/user.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 | /         format!(
[INFO] [stdout] 78 | |             "<User Fn {}>",
[INFO] [stdout] 79 | |             match &self.name.ttype {
[INFO] [stdout] 80 | |                 TType::Identifier(s) => s,
[INFO] [stdout] ...  |
[INFO] [stdout] 84 | |         .into()
[INFO] [stdout]    | |_______________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `String` to `String`
[INFO] [stdout]    --> src/interpreter.rs:286:29
[INFO] [stdout]     |
[INFO] [stdout] 286 | / ...                   format!(
[INFO] [stdout] 287 | | ...                       "Expected {} argument{}, but got {}.",
[INFO] [stdout] 288 | | ...                       ar,
[INFO] [stdout] 289 | | ...                       if ar == 1 { "" } else { "s" },
[INFO] [stdout] ...   |
[INFO] [stdout] 292 | | ...                   .into(),
[INFO] [stdout]     | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `String` to `String`
[INFO] [stdout]    --> src/interpreter.rs:399:33
[INFO] [stdout]     |
[INFO] [stdout] 399 | / ...                   format!(
[INFO] [stdout] 400 | | ...                       "The item '{}' does not exist in the module '{}'.",
[INFO] [stdout] 401 | | ...                       prop_string, module.name
[INFO] [stdout] 402 | | ...                   )
[INFO] [stdout] 403 | | ...                   .into(),
[INFO] [stdout]     | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `String` to `String`
[INFO] [stdout]    --> src/parser.rs:212:35
[INFO] [stdout]     |
[INFO] [stdout] 212 |         self.consume(TType::Semi, format!("Expected ';' after {}", stype).into())?;
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `String` to `String`
[INFO] [stdout]    --> src/parser.rs:703:17
[INFO] [stdout]     |
[INFO] [stdout] 703 |                 format!("Expected '(' after {}", kind).into(),
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `String` to `String`
[INFO] [stdout]    --> src/resolver.rs:134:45
[INFO] [stdout]     |
[INFO] [stdout] 134 | / ...                   format!(
[INFO] [stdout] 135 | | ...                       "The item '{}' does not exist in the module '{}'.",
[INFO] [stdout] 136 | | ...                       name_string, name
[INFO] [stdout] 137 | | ...                   )
[INFO] [stdout] 138 | | ...                   .into(),
[INFO] [stdout]     | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `String` to `String`
[INFO] [stdout]   --> src/types/array.rs:36:25
[INFO] [stdout]    |
[INFO] [stdout] 36 |                         format!("Only whole numbers are valid index ranges (got {}).", i).into(),
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this conversion is useless `String` to `String`
[INFO] [stdout]   --> src/types/array.rs:51:25
[INFO] [stdout]    |
[INFO] [stdout] 51 |                         format!("Index {} out of array range 0-{}.", i, len - 1).into(),
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `europa-lang` (bin "europa-lang" test) due to 8 previous errors
[INFO] running `Command { std: "docker" "inspect" "06e1a34dfee8b8025614d144dfe7dbb7296563078ab05c416cf75748c2f43910", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06e1a34dfee8b8025614d144dfe7dbb7296563078ab05c416cf75748c2f43910", kill_on_drop: false }`
[INFO] [stdout] 06e1a34dfee8b8025614d144dfe7dbb7296563078ab05c416cf75748c2f43910