[INFO] cloning repository https://github.com/Callum-Irving/postfix-math-parser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Callum-Irving/postfix-math-parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCallum-Irving%2Fpostfix-math-parser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCallum-Irving%2Fpostfix-math-parser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5c8498df634b2358d89fed71762e4dfe049dbd05
[INFO] testing Callum-Irving/postfix-math-parser against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCallum-Irving%2Fpostfix-math-parser" "/workspace/builds/worker-25/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-25/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Callum-Irving/postfix-math-parser on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Callum-Irving/postfix-math-parser
[INFO] finished tweaking git repo https://github.com/Callum-Irving/postfix-math-parser
[INFO] tweaked toml for git repo https://github.com/Callum-Irving/postfix-math-parser written to /workspace/builds/worker-25/source/Cargo.toml
[INFO] crate git repo https://github.com/Callum-Irving/postfix-math-parser already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ddb55a6a0d543fa50e794fd9626f89374e8301abfe2ed4c713a1118d809a66a4
[INFO] running `Command { std: "docker" "start" "-a" "ddb55a6a0d543fa50e794fd9626f89374e8301abfe2ed4c713a1118d809a66a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ddb55a6a0d543fa50e794fd9626f89374e8301abfe2ed4c713a1118d809a66a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddb55a6a0d543fa50e794fd9626f89374e8301abfe2ed4c713a1118d809a66a4", kill_on_drop: false }`
[INFO] [stdout] ddb55a6a0d543fa50e794fd9626f89374e8301abfe2ed4c713a1118d809a66a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf3a61ade665b3a69663885e910d18f64819ed52cbbeb51966de81e482578522
[INFO] running `Command { std: "docker" "start" "-a" "bf3a61ade665b3a69663885e910d18f64819ed52cbbeb51966de81e482578522", 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] [stderr]    Compiling gmp-mpfr-sys v1.4.7
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling az v1.2.0
[INFO] [stderr]    Compiling rug v1.14.0
[INFO] [stderr]    Compiling postfix_calc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `MultipleVariableDef`
[INFO] [stdout]    --> src/interpreter.rs:135:5
[INFO] [stdout]     |
[INFO] [stdout] 135 |     MultipleVariableDef,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `CalcError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/interpreter.rs:127:10
[INFO] [stdout]     |
[INFO] [stdout] 127 | #[derive(Debug)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 30s
[INFO] running `Command { std: "docker" "inspect" "bf3a61ade665b3a69663885e910d18f64819ed52cbbeb51966de81e482578522", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf3a61ade665b3a69663885e910d18f64819ed52cbbeb51966de81e482578522", kill_on_drop: false }`
[INFO] [stdout] bf3a61ade665b3a69663885e910d18f64819ed52cbbeb51966de81e482578522
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bef663713c435b24d9df7c1f99ab79197f7e651af41b7ad478969183450e39c0
[INFO] running `Command { std: "docker" "start" "-a" "bef663713c435b24d9df7c1f99ab79197f7e651af41b7ad478969183450e39c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling postfix_calc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `MultipleVariableDef`
[INFO] [stdout]    --> src/interpreter.rs:135:5
[INFO] [stdout]     |
[INFO] [stdout] 135 |     MultipleVariableDef,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `CalcError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/interpreter.rs:127:10
[INFO] [stdout]     |
[INFO] [stdout] 127 | #[derive(Debug)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/postfix_calc-4d716f561402869d)
[INFO] running `Command { std: "docker" "inspect" "bef663713c435b24d9df7c1f99ab79197f7e651af41b7ad478969183450e39c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bef663713c435b24d9df7c1f99ab79197f7e651af41b7ad478969183450e39c0", kill_on_drop: false }`
[INFO] [stdout] bef663713c435b24d9df7c1f99ab79197f7e651af41b7ad478969183450e39c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b77778cc76530111e1b64895776af85979040e2dc16e2dc3858dbf1cf1fe91ff
[INFO] running `Command { std: "docker" "start" "-a" "b77778cc76530111e1b64895776af85979040e2dc16e2dc3858dbf1cf1fe91ff", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: variant is never constructed: `MultipleVariableDef`
[INFO] [stdout] 
[INFO] [stderr]    --> src/interpreter.rs:135:5
[INFO] [stdout] running 0 tests
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr] 135 |     MultipleVariableDef,
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `CalcError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    --> src/interpreter.rs:127:10
[INFO] [stderr]     |
[INFO] [stderr] 127 | #[derive(Debug)]
[INFO] [stderr]     |          ^^^^^
[INFO] [stderr]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `postfix_calc` (bin "postfix_calc" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.26s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/postfix_calc-4d716f561402869d)
[INFO] running `Command { std: "docker" "inspect" "b77778cc76530111e1b64895776af85979040e2dc16e2dc3858dbf1cf1fe91ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b77778cc76530111e1b64895776af85979040e2dc16e2dc3858dbf1cf1fe91ff", kill_on_drop: false }`
[INFO] [stdout] b77778cc76530111e1b64895776af85979040e2dc16e2dc3858dbf1cf1fe91ff