[INFO] cloning repository https://github.com/MonliH/fluo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MonliH/fluo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMonliH%2Ffluo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMonliH%2Ffluo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e794dc9217e962971ec52b52db881cb970c4e625
[INFO] testing MonliH/fluo against try#ed7f3d77595b4831fdf085f2529aa13b5b51ff7d for pr-134530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMonliH%2Ffluo" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MonliH/fluo on toolchain ed7f3d77595b4831fdf085f2529aa13b5b51ff7d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MonliH/fluo
[INFO] finished tweaking git repo https://github.com/MonliH/fluo
[INFO] tweaked toml for git repo https://github.com/MonliH/fluo written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/MonliH/fluo 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" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] testing MonliH/fluo against try#ed7f3d77595b4831fdf085f2529aa13b5b51ff7d for pr-134530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMonliH%2Ffluo" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MonliH/fluo on toolchain ed7f3d77595b4831fdf085f2529aa13b5b51ff7d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MonliH/fluo
[INFO] finished tweaking git repo https://github.com/MonliH/fluo
[INFO] tweaked toml for git repo https://github.com/MonliH/fluo written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/MonliH/fluo 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" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf2cd8bb882b365d8dfe629db0c6a06e45c015f8f0b35dc14c95f9b3208e4982
[INFO] running `Command { std: "docker" "start" "-a" "bf2cd8bb882b365d8dfe629db0c6a06e45c015f8f0b35dc14c95f9b3208e4982", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf2cd8bb882b365d8dfe629db0c6a06e45c015f8f0b35dc14c95f9b3208e4982", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf2cd8bb882b365d8dfe629db0c6a06e45c015f8f0b35dc14c95f9b3208e4982", kill_on_drop: false }`
[INFO] [stdout] bf2cd8bb882b365d8dfe629db0c6a06e45c015f8f0b35dc14c95f9b3208e4982
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c00d4ba73957a0a68c03b195c558c1453293717e8e202bef38f407ca8a97e4a2
[INFO] running `Command { std: "docker" "start" "-a" "c00d4ba73957a0a68c03b195c558c1453293717e8e202bef38f407ca8a97e4a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling ahash v0.7.4
[INFO] [stderr]    Compiling codespan-reporting v0.11.1
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling fluoc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/common/diagnostic.rs:10:19
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct FileId(usize);
[INFO] [stdout]    |            ------ ^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `FileId` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `single_char` is never used
[INFO] [stdout]   --> src/common/diagnostic.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Span {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn single_char(s: usize, fid: FileId) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `span` is never read
[INFO] [stdout]   --> src/common/diagnostic.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct Diagnostic {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 45 |     span: Span,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Diagnostic` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_owned`, `with_annot_owned`, and `with_annot` are never used
[INFO] [stdout]   --> src/common/diagnostic.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 49 | impl Diagnostic {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub fn new_owned(ty: ErrorType, msg: String, span: Span) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |     pub fn with_annot_owned(mut self, msg: String, span: Span) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     pub fn with_annot(mut self, msg: &'static str, span: Span) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new_owned` and `new` are never used
[INFO] [stdout]    --> src/common/diagnostic.rs:110:12
[INFO] [stdout]     |
[INFO] [stdout] 109 | impl Annotation {
[INFO] [stdout]     | --------------- associated functions in this implementation
[INFO] [stdout] 110 |     pub fn new_owned(msg: String, span: Span) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 |     pub fn new(msg: &'static str, span: Span) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `inner` is never used
[INFO] [stdout]   --> src/common/interner.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl StrId {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 11 |     pub fn inner(self) -> usize {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `with_capacity` is never used
[INFO] [stdout]   --> src/common/interner.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl Interner {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 25 |     pub fn with_capacity(cap: usize) -> Interner {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Statement` is never used
[INFO] [stdout]  --> src/frontend/ast.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Statement {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Statement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expr` is never used
[INFO] [stdout]  --> src/frontend/ast.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub enum Expr {}
[INFO] [stdout]   |          ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/frontend/lex.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum Token {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 22 |     Equals,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 23 |     Colon,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 24 |
[INFO] [stdout] 25 |     Fn,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 26 |     End,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 27 |     Type,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 28 |     Case,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 29 |     Do,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 30 |     Import,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 31 |
[INFO] [stdout] 32 |     String(StrId),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 33 |     Operator(StrId),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `is_operator`, and `consume_until` are never used
[INFO] [stdout]    --> src/frontend/lex.rs:50:12
[INFO] [stdout]     |
[INFO] [stdout] 49  | impl<'a> Lexer<'a> {
[INFO] [stdout]     | ------------------ associated items in this implementation
[INFO] [stdout] 50  |     pub fn new(
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 105 |     fn is_operator(c: char) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 156 |     fn consume_until(&mut self, predicate: impl Fn(char) -> bool) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.76s
[INFO] running `Command { std: "docker" "inspect" "c00d4ba73957a0a68c03b195c558c1453293717e8e202bef38f407ca8a97e4a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c00d4ba73957a0a68c03b195c558c1453293717e8e202bef38f407ca8a97e4a2", kill_on_drop: false }`
[INFO] [stdout] c00d4ba73957a0a68c03b195c558c1453293717e8e202bef38f407ca8a97e4a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fae8e3b8f9cae4d3290b7a6b141ee106545f64c356ff16e629edcd008a2369a0
[INFO] running `Command { std: "docker" "start" "-a" "fae8e3b8f9cae4d3290b7a6b141ee106545f64c356ff16e629edcd008a2369a0", kill_on_drop: false }`
[INFO] [stderr]    Compiling fluoc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `token` is never read
[INFO] [stdout]    --> src/frontend/lex.rs:205:25
[INFO] [stdout]     |
[INFO] [stdout] 205 |                           token += 1;
[INFO] [stdout]     |                           ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 223 | /     match_tokens!(
[INFO] [stdout] 224 | |         atom_test,
[INFO] [stdout] 225 | |         "(:testing ok)",
[INFO] [stdout] 226 | |         {0 => "testing", 1 => "ok"},
[INFO] [stdout] ...   |
[INFO] [stdout] 230 | |         Token::RParen
[INFO] [stdout] 231 | |     );
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `match_tokens` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `token` is never read
[INFO] [stdout]    --> src/frontend/lex.rs:205:25
[INFO] [stdout]     |
[INFO] [stdout] 205 |                           token += 1;
[INFO] [stdout]     |                           ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 233 | /     match_tokens!(
[INFO] [stdout] 234 | |         ident_with_space,
[INFO] [stdout] 235 | |         "abc efghijklmno_pqrstuvwxyz _QWERTYUIOP ASDFGHJKL ZXCVBNM",
[INFO] [stdout] ...   |
[INFO] [stdout] 247 | |         Token::Ident(StrId(4))
[INFO] [stdout] 248 | |     );
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: this warning originates in the macro `match_tokens` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/common/diagnostic.rs:10:19
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct FileId(usize);
[INFO] [stdout]    |            ------ ^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `FileId` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `single_char` is never used
[INFO] [stdout]   --> src/common/diagnostic.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Span {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn single_char(s: usize, fid: FileId) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `span` is never read
[INFO] [stdout]   --> src/common/diagnostic.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct Diagnostic {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 45 |     span: Span,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Diagnostic` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_owned`, `with_annot_owned`, and `with_annot` are never used
[INFO] [stdout]   --> src/common/diagnostic.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 49 | impl Diagnostic {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub fn new_owned(ty: ErrorType, msg: String, span: Span) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |     pub fn with_annot_owned(mut self, msg: String, span: Span) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     pub fn with_annot(mut self, msg: &'static str, span: Span) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new_owned` and `new` are never used
[INFO] [stdout]    --> src/common/diagnostic.rs:110:12
[INFO] [stdout]     |
[INFO] [stdout] 109 | impl Annotation {
[INFO] [stdout]     | --------------- associated functions in this implementation
[INFO] [stdout] 110 |     pub fn new_owned(msg: String, span: Span) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 |     pub fn new(msg: &'static str, span: Span) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `inner` is never used
[INFO] [stdout]   --> src/common/interner.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl StrId {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 11 |     pub fn inner(self) -> usize {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `with_capacity` is never used
[INFO] [stdout]   --> src/common/interner.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl Interner {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 25 |     pub fn with_capacity(cap: usize) -> Interner {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Statement` is never used
[INFO] [stdout]  --> src/frontend/ast.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Statement {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Statement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expr` is never used
[INFO] [stdout]  --> src/frontend/ast.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub enum Expr {}
[INFO] [stdout]   |          ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/frontend/lex.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum Token {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 22 |     Equals,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 23 |     Colon,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 24 |
[INFO] [stdout] 25 |     Fn,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 26 |     End,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 27 |     Type,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 28 |     Case,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 29 |     Do,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 30 |     Import,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 31 |
[INFO] [stdout] 32 |     String(StrId),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 33 |     Operator(StrId),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `is_operator` and `consume_until` are never used
[INFO] [stdout]    --> src/frontend/lex.rs:105:8
[INFO] [stdout]     |
[INFO] [stdout] 49  | impl<'a> Lexer<'a> {
[INFO] [stdout]     | ------------------ associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 105 |     fn is_operator(c: char) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 156 |     fn consume_until(&mut self, predicate: impl Fn(char) -> bool) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "fae8e3b8f9cae4d3290b7a6b141ee106545f64c356ff16e629edcd008a2369a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fae8e3b8f9cae4d3290b7a6b141ee106545f64c356ff16e629edcd008a2369a0", kill_on_drop: false }`
[INFO] [stdout] fae8e3b8f9cae4d3290b7a6b141ee106545f64c356ff16e629edcd008a2369a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d94acce59ed028f8bfb03b51bf7e0faff20905ad631eb3e8a9d5b4933ff1545c
[INFO] running `Command { std: "docker" "start" "-a" "d94acce59ed028f8bfb03b51bf7e0faff20905ad631eb3e8a9d5b4933ff1545c", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `token` is never read
[INFO] [stderr]    --> src/frontend/lex.rs:205:25
[INFO] [stderr]     |
[INFO] [stderr] 205 |                           token += 1;
[INFO] [stderr]     |                           ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 223 | /     match_tokens!(
[INFO] [stderr] 224 | |         atom_test,
[INFO] [stderr] 225 | |         "(:testing ok)",
[INFO] [stderr] 226 | |         {0 => "testing", 1 => "ok"},
[INFO] [stderr] ...   |
[INFO] [stderr] 230 | |         Token::RParen
[INFO] [stderr] 231 | |     );
[INFO] [stderr]     | |_____- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = note: this warning originates in the macro `match_tokens` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `token` is never read
[INFO] [stderr]    --> src/frontend/lex.rs:205:25
[INFO] [stderr]     |
[INFO] [stderr] 205 |                           token += 1;
[INFO] [stderr]     |                           ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 233 | /     match_tokens!(
[INFO] [stderr] 234 | |         ident_with_space,
[INFO] [stderr] 235 | |         "abc efghijklmno_pqrstuvwxyz _QWERTYUIOP ASDFGHJKL ZXCVBNM",
[INFO] [stderr] ...   |
[INFO] [stderr] 247 | |         Token::Ident(StrId(4))
[INFO] [stderr] 248 | |     );
[INFO] [stderr]     | |_____- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: this warning originates in the macro `match_tokens` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/common/diagnostic.rs:10:19
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub struct FileId(usize);
[INFO] [stderr]    |            ------ ^^^^^
[INFO] [stderr]    |            |
[INFO] [stderr]    |            field in this struct
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider removing this field
[INFO] [stderr]    = note: `FileId` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `single_char` is never used
[INFO] [stderr]   --> src/common/diagnostic.rs:30:12
[INFO] [stderr]    |
[INFO] [stderr] 25 | impl Span {
[INFO] [stderr]    | --------- associated function in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 30 |     pub fn single_char(s: usize, fid: FileId) -> Self {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `span` is never read
[INFO] [stderr]   --> src/common/diagnostic.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub struct Diagnostic {
[INFO] [stderr]    |            ---------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 45 |     span: Span,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Diagnostic` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new_owned`, `with_annot_owned`, and `with_annot` are never used
[INFO] [stderr]   --> src/common/diagnostic.rs:59:12
[INFO] [stderr]    |
[INFO] [stderr] 49 | impl Diagnostic {
[INFO] [stderr]    | --------------- associated items in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 59 |     pub fn new_owned(ty: ErrorType, msg: String, span: Span) -> Self {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 68 |     pub fn with_annot_owned(mut self, msg: String, span: Span) -> Self {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 73 |     pub fn with_annot(mut self, msg: &'static str, span: Span) -> Self {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated functions `new_owned` and `new` are never used
[INFO] [stderr]    --> src/common/diagnostic.rs:110:12
[INFO] [stderr]     |
[INFO] [stderr] 109 | impl Annotation {
[INFO] [stderr]     | --------------- associated functions in this implementation
[INFO] [stderr] 110 |     pub fn new_owned(msg: String, span: Span) -> Self {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 121 |     pub fn new(msg: &'static str, span: Span) -> Self {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `inner` is never used
[INFO] [stderr]   --> src/common/interner.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 10 | impl StrId {
[INFO] [stderr]    | ---------- method in this implementation
[INFO] [stderr] 11 |     pub fn inner(self) -> usize {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `with_capacity` is never used
[INFO] [stderr]   --> src/common/interner.rs:25:12
[INFO] [stderr]    |
[INFO] [stderr] 24 | impl Interner {
[INFO] [stderr]    | ------------- associated function in this implementation
[INFO] [stderr] 25 |     pub fn with_capacity(cap: usize) -> Interner {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Statement` is never used
[INFO] [stderr]  --> src/frontend/ast.rs:4:10
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub enum Statement {
[INFO] [stderr]   |          ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Statement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Expr` is never used
[INFO] [stderr]  --> src/frontend/ast.rs:9:10
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub enum Expr {}
[INFO] [stderr]   |          ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: multiple variants are never constructed
[INFO] [stderr]   --> src/frontend/lex.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub enum Token {
[INFO] [stderr]    |          ----- variants in this enum
[INFO] [stderr] ...
[INFO] [stderr] 22 |     Equals,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 23 |     Colon,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 24 |
[INFO] [stderr] 25 |     Fn,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 26 |     End,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 27 |     Type,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 28 |     Case,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 29 |     Do,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 30 |     Import,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 31 |
[INFO] [stderr] 32 |     String(StrId),
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 33 |     Operator(StrId),
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `is_operator` and `consume_until` are never used
[INFO] [stderr]    --> src/frontend/lex.rs:105:8
[INFO] [stderr]     |
[INFO] [stderr] 49  | impl<'a> Lexer<'a> {
[INFO] [stderr]     | ------------------ associated items in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 105 |     fn is_operator(c: char) -> bool {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 156 |     fn consume_until(&mut self, predicate: impl Fn(char) -> bool) -> String {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `fluoc` (bin "fluoc" test) generated 13 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/fluoc-ea0c96a823352395)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test frontend::lex::test_lexer::empty ... ok
[INFO] [stdout] test frontend::lex::test_lexer::ident_with_space ... ok
[INFO] [stdout] test frontend::lex::test_lexer::paren ... ok
[INFO] [stdout] test frontend::lex::test_lexer::paren_with_space ... ok
[INFO] [stdout] test frontend::lex::test_lexer::atom_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d94acce59ed028f8bfb03b51bf7e0faff20905ad631eb3e8a9d5b4933ff1545c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d94acce59ed028f8bfb03b51bf7e0faff20905ad631eb3e8a9d5b4933ff1545c", kill_on_drop: false }`
[INFO] [stdout] d94acce59ed028f8bfb03b51bf7e0faff20905ad631eb3e8a9d5b4933ff1545c