[INFO] cloning repository https://github.com/chad-russell/seam
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chad-russell/seam" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchad-russell%2Fseam", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchad-russell%2Fseam'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a5c9d4e7437eecadde29c26cfc7e8e307e2dd12a
[INFO] checking chad-russell/seam against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchad-russell%2Fseam" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chad-russell/seam on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chad-russell/seam
[INFO] finished tweaking git repo https://github.com/chad-russell/seam
[INFO] tweaked toml for git repo https://github.com/chad-russell/seam written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/chad-russell/seam already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3fddf766b729d34d135e9111d9356a3e99681ba520bda40b169269c0dafcaf86
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3fddf766b729d34d135e9111d9356a3e99681ba520bda40b169269c0dafcaf86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3fddf766b729d34d135e9111d9356a3e99681ba520bda40b169269c0dafcaf86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fddf766b729d34d135e9111d9356a3e99681ba520bda40b169269c0dafcaf86", kill_on_drop: false }`
[INFO] [stdout] 3fddf766b729d34d135e9111d9356a3e99681ba520bda40b169269c0dafcaf86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8fb6a53b21748383f24b3497105bed4e089249b0809668668df070dd199c1337
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8fb6a53b21748383f24b3497105bed4e089249b0809668668df070dd199c1337", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking smallvec v1.4.1
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling cranelift-entity v0.67.0
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.67.0
[INFO] [stderr]    Compiling target-lexicon v0.11.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking errno v0.2.6
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.67.0
[INFO] [stderr]     Checking cranelift-bforest v0.67.0
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking regalloc v0.0.30
[INFO] [stderr]     Checking mio v0.7.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]    Compiling raw-cpuid v7.0.3
[INFO] [stderr]     Checking crossterm v0.17.7
[INFO] [stderr]     Checking string-interner v0.12.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]    Compiling cranelift-codegen v0.67.0
[INFO] [stderr]     Checking cranelift-frontend v0.67.0
[INFO] [stderr]     Checking cranelift-module v0.67.0
[INFO] [stderr]     Checking cranelift-native v0.67.0
[INFO] [stderr]     Checking cranelift v0.67.0
[INFO] [stderr]     Checking cranelift-simplejit v0.67.0
[INFO] [stderr]     Checking seam v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Node`
[INFO] [stdout]   --> src/main.rs:18:28
[INFO] [stdout]    |
[INFO] [stdout] 18 | use parser::{CompileError, Node, Range, Token, Type};
[INFO] [stdout]    |                            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Node`
[INFO] [stdout]   --> src/main.rs:18:28
[INFO] [stdout]    |
[INFO] [stdout] 18 | use parser::{CompileError, Node, Range, Token, Type};
[INFO] [stdout]    |                            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens_range`
[INFO] [stdout]     --> src/parser.rs:1595:29
[INFO] [stdout]      |
[INFO] [stdout] 1595 |                         let tokens_range = Range::new(tokens_start, range.end);
[INFO] [stdout]      |                             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens_range`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/semantic.rs:533:17
[INFO] [stdout]     |
[INFO] [stdout] 533 |                 input,
[INFO] [stdout]     |                 ^^^^^ help: try ignoring the field: `input: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens_range`
[INFO] [stdout]     --> src/parser.rs:1595:29
[INFO] [stdout]      |
[INFO] [stdout] 1595 |                         let tokens_range = Range::new(tokens_start, range.end);
[INFO] [stdout]      |                             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens_range`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/semantic.rs:533:17
[INFO] [stdout]     |
[INFO] [stdout] 533 |                 input,
[INFO] [stdout]     |                 ^^^^^ help: try ignoring the field: `input: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `append_source`
[INFO] [stdout]    --> src/backend.rs:156:12
[INFO] [stdout]     |
[INFO] [stdout] 156 |     pub fn append_source(&mut self, source: &str) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `F32`
[INFO] [stdout]    --> src/parser.rs:148:5
[INFO] [stdout]     |
[INFO] [stdout] 148 |     F32,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `F64`
[INFO] [stdout]    --> src/parser.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 |     F64,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PushToken`
[INFO] [stdout]    --> src/parser.rs:871:5
[INFO] [stdout]     |
[INFO] [stdout] 871 |     PushToken(Id, Id),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_repl`
[INFO] [stdout]     --> src/parser.rs:2006:12
[INFO] [stdout]      |
[INFO] [stdout] 2006 |     pub fn parse_repl(&mut self) -> Result<Id, CompileError> {
[INFO] [stdout]      |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `repl`
[INFO] [stdout]   --> src/main.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn repl() -> Result<(), CompileError> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `repl_loop`
[INFO] [stdout]   --> src/main.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn repl_loop(backend: &mut Backend, repl_stmt_count: i64) -> Result<(), CompileError> {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `append_source`
[INFO] [stdout]    --> src/backend.rs:156:12
[INFO] [stdout]     |
[INFO] [stdout] 156 |     pub fn append_source(&mut self, source: &str) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `F32`
[INFO] [stdout]    --> src/parser.rs:148:5
[INFO] [stdout]     |
[INFO] [stdout] 148 |     F32,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `F64`
[INFO] [stdout]    --> src/parser.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 |     F64,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PushToken`
[INFO] [stdout]    --> src/parser.rs:871:5
[INFO] [stdout]     |
[INFO] [stdout] 871 |     PushToken(Id, Id),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_repl`
[INFO] [stdout]     --> src/parser.rs:2006:12
[INFO] [stdout]      |
[INFO] [stdout] 2006 |     pub fn parse_repl(&mut self) -> Result<Id, CompileError> {
[INFO] [stdout]      |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `repl`
[INFO] [stdout]   --> src/main.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn repl() -> Result<(), CompileError> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `repl_loop`
[INFO] [stdout]   --> src/main.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn repl_loop(backend: &mut Backend, repl_stmt_count: i64) -> Result<(), CompileError> {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]     --> src/backend.rs:1708:9
[INFO] [stdout]      |
[INFO] [stdout] 1708 |         self.backend.module.define_data(data_id, &data_ctx);
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]     --> src/backend.rs:1708:9
[INFO] [stdout]      |
[INFO] [stdout] 1708 |         self.backend.module.define_data(data_id, &data_ctx);
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 11s
[INFO] running `Command { std: "docker" "inspect" "8fb6a53b21748383f24b3497105bed4e089249b0809668668df070dd199c1337", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fb6a53b21748383f24b3497105bed4e089249b0809668668df070dd199c1337", kill_on_drop: false }`
[INFO] [stdout] 8fb6a53b21748383f24b3497105bed4e089249b0809668668df070dd199c1337