[INFO] cloning repository https://github.com/simonecarriero/property-based-testing-101 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/simonecarriero/property-based-testing-101" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimonecarriero%2Fproperty-based-testing-101", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimonecarriero%2Fproperty-based-testing-101'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 467abd697ed9c7aee45b809099b4c0044bcd1e7f [INFO] checking simonecarriero/property-based-testing-101 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimonecarriero%2Fproperty-based-testing-101" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/simonecarriero/property-based-testing-101 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/simonecarriero/property-based-testing-101 [INFO] finished tweaking git repo https://github.com/simonecarriero/property-based-testing-101 [INFO] tweaked toml for git repo https://github.com/simonecarriero/property-based-testing-101 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/simonecarriero/property-based-testing-101 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded quickcheck v0.9.2 [INFO] [stderr] Downloaded fake v2.3.0 [INFO] [stderr] Downloaded libc v0.2.136 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4f70caa3d8a6ca81122f980f0e737f0cfdb145ab3114b363f4031892f080c865 [INFO] running `Command { std: "docker" "start" "-a" "4f70caa3d8a6ca81122f980f0e737f0cfdb145ab3114b363f4031892f080c865", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4f70caa3d8a6ca81122f980f0e737f0cfdb145ab3114b363f4031892f080c865", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4f70caa3d8a6ca81122f980f0e737f0cfdb145ab3114b363f4031892f080c865", kill_on_drop: false }` [INFO] [stdout] 4f70caa3d8a6ca81122f980f0e737f0cfdb145ab3114b363f4031892f080c865 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 840caeb3a79fe8fa94d61b7ca7c7a6ce95840ca51c26042ccf8ef4e8be22aebf [INFO] running `Command { std: "docker" "start" "-a" "840caeb3a79fe8fa94d61b7ca7c7a6ce95840ca51c26042ccf8ef4e8be22aebf", kill_on_drop: false }` [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling libc v0.2.136 [INFO] [stderr] Compiling getrandom v0.1.16 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Checking ppv-lite86 v0.2.16 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Checking regex-syntax v0.6.27 [INFO] [stderr] Compiling anyhow v1.0.66 [INFO] [stderr] Checking property-based-testing-101 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `Wallet` is never constructed [INFO] [stdout] --> src/wallet.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct Wallet { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `execute`, `buy`, and `sell` are never used [INFO] [stdout] --> src/wallet.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 8 | impl Wallet { [INFO] [stdout] | ----------- associated items in this implementation [INFO] [stdout] 9 | pub fn new() -> Wallet { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 13 | pub fn execute(&mut self, operation: &Operation) -> Result { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 34 | fn buy(&mut self, quantity: u16) -> Result<(), anyhow::Error> { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | fn sell(&mut self, quantity: u16) -> Result<(), anyhow::Error> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Operation` is never constructed [INFO] [stdout] --> src/wallet.rs:49:12 [INFO] [stdout] | [INFO] [stdout] 49 | pub struct Operation(Vec); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Operation` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Transaction` is never used [INFO] [stdout] --> src/wallet.rs:52:10 [INFO] [stdout] | [INFO] [stdout] 52 | pub enum Transaction { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Transaction` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `Quantity` is never used [INFO] [stdout] --> src/wallet.rs:57:6 [INFO] [stdout] | [INFO] [stdout] 57 | type Quantity = i16; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking aho-corasick v0.7.19 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking regex v1.6.0 [INFO] [stderr] Checking fake v2.3.0 [INFO] [stderr] Checking env_logger v0.7.1 [INFO] [stderr] Checking quickcheck v0.9.2 [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.22s [INFO] running `Command { std: "docker" "inspect" "840caeb3a79fe8fa94d61b7ca7c7a6ce95840ca51c26042ccf8ef4e8be22aebf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "840caeb3a79fe8fa94d61b7ca7c7a6ce95840ca51c26042ccf8ef4e8be22aebf", kill_on_drop: false }` [INFO] [stdout] 840caeb3a79fe8fa94d61b7ca7c7a6ce95840ca51c26042ccf8ef4e8be22aebf [INFO] checking simonecarriero/property-based-testing-101 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimonecarriero%2Fproperty-based-testing-101" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/simonecarriero/property-based-testing-101 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/simonecarriero/property-based-testing-101 [INFO] finished tweaking git repo https://github.com/simonecarriero/property-based-testing-101 [INFO] tweaked toml for git repo https://github.com/simonecarriero/property-based-testing-101 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/simonecarriero/property-based-testing-101 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 427e00a0c53fbc20c4369d3e6f8ed9ceffc9dec2a022baa12253c2120f8b041d [INFO] running `Command { std: "docker" "start" "-a" "427e00a0c53fbc20c4369d3e6f8ed9ceffc9dec2a022baa12253c2120f8b041d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "427e00a0c53fbc20c4369d3e6f8ed9ceffc9dec2a022baa12253c2120f8b041d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "427e00a0c53fbc20c4369d3e6f8ed9ceffc9dec2a022baa12253c2120f8b041d", kill_on_drop: false }` [INFO] [stdout] 427e00a0c53fbc20c4369d3e6f8ed9ceffc9dec2a022baa12253c2120f8b041d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 056a56b1c7cacdaac7b889e706d0d3c892a3f99129c64f33c5b32d30c56ecd2b [INFO] running `Command { std: "docker" "start" "-a" "056a56b1c7cacdaac7b889e706d0d3c892a3f99129c64f33c5b32d30c56ecd2b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.136 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling getrandom v0.1.16 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Checking ppv-lite86 v0.2.16 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Compiling anyhow v1.0.66 [INFO] [stderr] Checking regex-syntax v0.6.27 [INFO] [stderr] Checking property-based-testing-101 v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking aho-corasick v0.7.19 [INFO] [stdout] warning: struct `Wallet` is never constructed [INFO] [stdout] --> src/wallet.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct Wallet { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `execute`, `buy`, and `sell` are never used [INFO] [stdout] --> src/wallet.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 8 | impl Wallet { [INFO] [stdout] | ----------- associated items in this implementation [INFO] [stdout] 9 | pub fn new() -> Wallet { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 13 | pub fn execute(&mut self, operation: &Operation) -> Result { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 34 | fn buy(&mut self, quantity: u16) -> Result<(), anyhow::Error> { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | fn sell(&mut self, quantity: u16) -> Result<(), anyhow::Error> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Operation` is never constructed [INFO] [stdout] --> src/wallet.rs:49:12 [INFO] [stdout] | [INFO] [stdout] 49 | pub struct Operation(Vec); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Operation` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Transaction` is never used [INFO] [stdout] --> src/wallet.rs:52:10 [INFO] [stdout] | [INFO] [stdout] 52 | pub enum Transaction { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Transaction` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `Quantity` is never used [INFO] [stdout] --> src/wallet.rs:57:6 [INFO] [stdout] | [INFO] [stdout] 57 | type Quantity = i16; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking regex v1.6.0 [INFO] [stderr] Checking fake v2.3.0 [INFO] [stderr] Checking env_logger v0.7.1 [INFO] [stderr] Checking quickcheck v0.9.2 [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.99s [INFO] running `Command { std: "docker" "inspect" "056a56b1c7cacdaac7b889e706d0d3c892a3f99129c64f33c5b32d30c56ecd2b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "056a56b1c7cacdaac7b889e706d0d3c892a3f99129c64f33c5b32d30c56ecd2b", kill_on_drop: false }` [INFO] [stdout] 056a56b1c7cacdaac7b889e706d0d3c892a3f99129c64f33c5b32d30c56ecd2b