[INFO] updating cached repository https://github.com/rudolfschmidt/acc
[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] [stderr] From https://github.com/rudolfschmidt/acc
[INFO] [stderr]    ec8b758..a7272ce  master     -> master
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a7272ce1f169806993d31ed1f873bea84b4af0f3
[INFO] checking rudolfschmidt/acc against try#22dd2dd1dc07f63ae9394352d412f020d2985684 for pr-74627
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frudolfschmidt%2Facc" "/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/rudolfschmidt/acc on toolchain 22dd2dd1dc07f63ae9394352d412f020d2985684
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+22dd2dd1dc07f63ae9394352d412f020d2985684" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rudolfschmidt/acc
[INFO] finished tweaking git repo https://github.com/rudolfschmidt/acc
[INFO] tweaked toml for git repo https://github.com/rudolfschmidt/acc written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/rudolfschmidt/acc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+22dd2dd1dc07f63ae9394352d412f020d2985684" "fetch" "--locked" "--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/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" "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" "+22dd2dd1dc07f63ae9394352d412f020d2985684" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 712ec099b70008da239791080c4b45cd0f6667117c039d69ec61100608e3292a
[INFO] running `Command { std: "docker" "start" "-a" "712ec099b70008da239791080c4b45cd0f6667117c039d69ec61100608e3292a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "712ec099b70008da239791080c4b45cd0f6667117c039d69ec61100608e3292a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "712ec099b70008da239791080c4b45cd0f6667117c039d69ec61100608e3292a", kill_on_drop: false }`
[INFO] [stdout] 712ec099b70008da239791080c4b45cd0f6667117c039d69ec61100608e3292a
[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" "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" "+22dd2dd1dc07f63ae9394352d412f020d2985684" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5a122dc81dbdd833c457c5eb8bac80459d120ed8098bbc18b42e940da9c4de5
[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" "e5a122dc81dbdd833c457c5eb8bac80459d120ed8098bbc18b42e940da9c4de5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking acc v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `unbalanced_amount`
[INFO] [stdout]    --> src/lib/parsers/modeler.rs:218:8
[INFO] [stdout]     |
[INFO] [stdout] 218 |             let unbalanced_amount = match self.tokens.get(self.index) {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unbalanced_amount`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unbalanced_amount`
[INFO] [stdout]    --> src/lib/parsers/modeler.rs:218:8
[INFO] [stdout]     |
[INFO] [stdout] 218 |             let unbalanced_amount = match self.tokens.get(self.index) {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unbalanced_amount`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unbalanced_amount`
[INFO] [stdout]    --> src/lib/parsers/modeler.rs:218:8
[INFO] [stdout]     |
[INFO] [stdout] 218 |             let unbalanced_amount = match self.tokens.get(self.index) {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unbalanced_amount`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unbalanced_amount`
[INFO] [stdout]    --> src/lib/parsers/modeler.rs:218:8
[INFO] [stdout]     |
[INFO] [stdout] 218 |             let unbalanced_amount = match self.tokens.get(self.index) {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unbalanced_amount`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_tokens`
[INFO] [stdout]  --> src/lib/parsers/debug.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn print_tokens(tokens: &[Token]) {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_transactions`
[INFO] [stdout]   --> src/lib/parsers/debug.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn print_transactions(transactions: &[Transaction]) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_tokens`
[INFO] [stdout]  --> src/lib/parsers/debug.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn print_tokens(tokens: &[Token]) {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_transactions`
[INFO] [stdout]   --> src/lib/parsers/debug.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn print_transactions(transactions: &[Transaction]) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.00s
[INFO] running `Command { std: "docker" "inspect" "e5a122dc81dbdd833c457c5eb8bac80459d120ed8098bbc18b42e940da9c4de5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5a122dc81dbdd833c457c5eb8bac80459d120ed8098bbc18b42e940da9c4de5", kill_on_drop: false }`
[INFO] [stdout] e5a122dc81dbdd833c457c5eb8bac80459d120ed8098bbc18b42e940da9c4de5