[INFO] updating cached repository https://github.com/tech6hutch/lang-compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b876793959149a653e4614da96686ca7ea121203
[INFO] testing tech6hutch/lang-compiler against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftech6hutch%2Flang-compiler" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tech6hutch/lang-compiler on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tech6hutch/lang-compiler
[INFO] finished tweaking git repo https://github.com/tech6hutch/lang-compiler
[INFO] tweaked toml for git repo https://github.com/tech6hutch/lang-compiler written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/tech6hutch/lang-compiler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e3f6fa2122f0ad67fab22762abd9bf3f0ed81fe06c8956b383d258e1c6f33336
[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" "e3f6fa2122f0ad67fab22762abd9bf3f0ed81fe06c8956b383d258e1c6f33336", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3f6fa2122f0ad67fab22762abd9bf3f0ed81fe06c8956b383d258e1c6f33336", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3f6fa2122f0ad67fab22762abd9bf3f0ed81fe06c8956b383d258e1c6f33336", kill_on_drop: false }`
[INFO] [stdout] e3f6fa2122f0ad67fab22762abd9bf3f0ed81fe06c8956b383d258e1c6f33336
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36339d622464349ccb19613f40f5e41100a0fa8bba1b9906a4c457076c3b7cab
[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" "36339d622464349ccb19613f40f5e41100a0fa8bba1b9906a4c457076c3b7cab", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling unicode_names2 v0.4.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling if_chain v1.0.0
[INFO] [stderr]    Compiling normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling bigdecimal v0.1.0
[INFO] [stderr]    Compiling lang-compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Display`, `Formatter`, `self`
[INFO] [stdout]  --> src/parser.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fmt::{self, Display, Debug, Formatter},
[INFO] [stdout]   |           ^^^^  ^^^^^^^         ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/interpreter.rs:103:25
[INFO] [stdout]     |
[INFO] [stdout] 103 |                         _ => return Err(RuntimeError::OperandTypeError {
[INFO] [stdout]     |                         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operator`
[INFO] [stdout]   --> src/errors.rs:95:40
[INFO] [stdout]    |
[INFO] [stdout] 95 |             &OperandTypeError { arity, ref operator, type_str } => {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^ help: try ignoring the field: `operator: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `if_some`
[INFO] [stdout]  --> src/util.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn if_some<T>(b: bool, t: T) -> Option<T> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `if_then`
[INFO] [stdout]  --> src/util.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn if_then<T, F: FnOnce() -> T>(b: bool, f: F) -> Option<T> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next_col`
[INFO] [stdout]   --> src/text.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 88 |     pub fn next_col(&self) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `TempStr`
[INFO] [stdout]    --> src/lexer.rs:215:5
[INFO] [stdout]     |
[INFO] [stdout] 215 |     TempStr(TemplateStringToken),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `synchronize`
[INFO] [stdout]    --> src/parser.rs:179:4
[INFO] [stdout]     |
[INFO] [stdout] 179 | fn synchronize(iter: MyIterType!()) {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.30s
[INFO] running `Command { std: "docker" "inspect" "36339d622464349ccb19613f40f5e41100a0fa8bba1b9906a4c457076c3b7cab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36339d622464349ccb19613f40f5e41100a0fa8bba1b9906a4c457076c3b7cab", kill_on_drop: false }`
[INFO] [stdout] 36339d622464349ccb19613f40f5e41100a0fa8bba1b9906a4c457076c3b7cab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e364d623e5d657f81468e683e0a15654212b00b442f62b7707be4cf287c41ae
[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" "6e364d623e5d657f81468e683e0a15654212b00b442f62b7707be4cf287c41ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling lang-compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Display`, `Formatter`, `self`
[INFO] [stdout]  --> src/parser.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fmt::{self, Display, Debug, Formatter},
[INFO] [stdout]   |           ^^^^  ^^^^^^^         ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/interpreter.rs:103:25
[INFO] [stdout]     |
[INFO] [stdout] 103 |                         _ => return Err(RuntimeError::OperandTypeError {
[INFO] [stdout]     |                         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operator`
[INFO] [stdout]   --> src/errors.rs:95:40
[INFO] [stdout]    |
[INFO] [stdout] 95 |             &OperandTypeError { arity, ref operator, type_str } => {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^ help: try ignoring the field: `operator: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `if_some`
[INFO] [stdout]  --> src/util.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn if_some<T>(b: bool, t: T) -> Option<T> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `if_then`
[INFO] [stdout]  --> src/util.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn if_then<T, F: FnOnce() -> T>(b: bool, f: F) -> Option<T> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next_col`
[INFO] [stdout]   --> src/text.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 88 |     pub fn next_col(&self) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `TempStr`
[INFO] [stdout]    --> src/lexer.rs:215:5
[INFO] [stdout]     |
[INFO] [stdout] 215 |     TempStr(TemplateStringToken),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `synchronize`
[INFO] [stdout]    --> src/parser.rs:179:4
[INFO] [stdout]     |
[INFO] [stdout] 179 | fn synchronize(iter: MyIterType!()) {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.44s
[INFO] running `Command { std: "docker" "inspect" "6e364d623e5d657f81468e683e0a15654212b00b442f62b7707be4cf287c41ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e364d623e5d657f81468e683e0a15654212b00b442f62b7707be4cf287c41ae", kill_on_drop: false }`
[INFO] [stdout] 6e364d623e5d657f81468e683e0a15654212b00b442f62b7707be4cf287c41ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1cbf556370c346dbccdfdc0d2df4de6f22c4ae5c99e86da6068591694a2b155b
[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" "1cbf556370c346dbccdfdc0d2df4de6f22c4ae5c99e86da6068591694a2b155b", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused imports: `Display`, `Formatter`, `self`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/parser.rs:2:11
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 2 |     fmt::{self, Display, Debug, Formatter},
[INFO] [stdout] 
[INFO] [stderr]   |           ^^^^  ^^^^^^^         ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/interpreter.rs:103:25
[INFO] [stderr]     |
[INFO] [stderr] 103 |                         _ => return Err(RuntimeError::OperandTypeError {
[INFO] [stderr]     |                         ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `operator`
[INFO] [stderr]   --> src/errors.rs:95:40
[INFO] [stderr]    |
[INFO] [stderr] 95 |             &OperandTypeError { arity, ref operator, type_str } => {
[INFO] [stderr]    |                                        ^^^^^^^^^^^^ help: try ignoring the field: `operator: _`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `if_some`
[INFO] [stderr]  --> src/util.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn if_some<T>(b: bool, t: T) -> Option<T> {
[INFO] [stderr]   |        ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `if_then`
[INFO] [stderr]  --> src/util.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn if_then<T, F: FnOnce() -> T>(b: bool, f: F) -> Option<T> {
[INFO] [stderr]   |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `next_col`
[INFO] [stderr]   --> src/text.rs:88:12
[INFO] [stderr]    |
[INFO] [stderr] 88 |     pub fn next_col(&self) -> Self {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `TempStr`
[INFO] [stderr]    --> src/lexer.rs:215:5
[INFO] [stderr]     |
[INFO] [stderr] 215 |     TempStr(TemplateStringToken),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `synchronize`
[INFO] [stderr]    --> src/parser.rs:179:4
[INFO] [stderr]     |
[INFO] [stderr] 179 | fn synchronize(iter: MyIterType!()) {
[INFO] [stderr]     |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lang_compiler-2adec08eec03451b
[INFO] running `Command { std: "docker" "inspect" "1cbf556370c346dbccdfdc0d2df4de6f22c4ae5c99e86da6068591694a2b155b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cbf556370c346dbccdfdc0d2df4de6f22c4ae5c99e86da6068591694a2b155b", kill_on_drop: false }`
[INFO] [stdout] 1cbf556370c346dbccdfdc0d2df4de6f22c4ae5c99e86da6068591694a2b155b