[INFO] fetching crate rcombinators 0.1.0...
[INFO] building rcombinators-0.1.0 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate rcombinators 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate rcombinators 0.1.0 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rcombinators 0.1.0
[INFO] finished tweaking crates.io crate rcombinators 0.1.0
[INFO] tweaked toml for crates.io crate rcombinators 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages to latest compatible versions
[INFO] [stderr]       Adding time-test v0.2.3 (available: v0.3.0)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded time-test v0.2.3
[INFO] [stderr]   Downloaded utf8reader v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d83bd0b041e10e1c08f3e60a94ac3a60a6a286602d847c83be8d2e0245f0b67a
[INFO] running `Command { std: "docker" "start" "-a" "d83bd0b041e10e1c08f3e60a94ac3a60a6a286602d847c83be8d2e0245f0b67a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d83bd0b041e10e1c08f3e60a94ac3a60a6a286602d847c83be8d2e0245f0b67a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d83bd0b041e10e1c08f3e60a94ac3a60a6a286602d847c83be8d2e0245f0b67a", kill_on_drop: false }`
[INFO] [stdout] d83bd0b041e10e1c08f3e60a94ac3a60a6a286602d847c83be8d2e0245f0b67a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36982f780ce85fffc6dc8c3ef64f9f23a418ae1afa2966399b6c99d54b4dbda1
[INFO] running `Command { std: "docker" "start" "-a" "36982f780ce85fffc6dc8c3ef64f9f23a418ae1afa2966399b6c99d54b4dbda1", kill_on_drop: false }`
[INFO] [stderr]    Compiling time v0.1.45
[INFO] [stderr]    Compiling utf8reader v0.1.0
[INFO] [stderr]    Compiling time-test v0.2.3
[INFO] [stderr]    Compiling rcombinators v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/primitives.rs:158:44
[INFO] [stdout]     |
[INFO] [stdout] 158 |                 Err(ParseError::ExecFail(e.description().to_string()))
[INFO] [stdout]     |                                            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/primitives.rs:177:40
[INFO] [stdout]     |
[INFO] [stdout] 177 |         Err(e) => return Err(execerr(e.description())),
[INFO] [stdout]     |                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/primitives.rs:184:44
[INFO] [stdout]     |
[INFO] [stdout] 184 |             Err(e) => return Err(execerr(e.description())),
[INFO] [stdout]     |                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "36982f780ce85fffc6dc8c3ef64f9f23a418ae1afa2966399b6c99d54b4dbda1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36982f780ce85fffc6dc8c3ef64f9f23a418ae1afa2966399b6c99d54b4dbda1", kill_on_drop: false }`
[INFO] [stdout] 36982f780ce85fffc6dc8c3ef64f9f23a418ae1afa2966399b6c99d54b4dbda1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6cc559a749e58ef1675ce787213170c7b1f21c77ad241b03db43f83ef5851994
[INFO] running `Command { std: "docker" "start" "-a" "6cc559a749e58ef1675ce787213170c7b1f21c77ad241b03db43f83ef5851994", kill_on_drop: false }`
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/primitives.rs:158:44
[INFO] [stdout]     |
[INFO] [stdout] 158 |                 Err(ParseError::ExecFail(e.description().to_string()))
[INFO] [stdout]     |                                            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/primitives.rs:177:40
[INFO] [stdout]     |
[INFO] [stdout] 177 |         Err(e) => return Err(execerr(e.description())),
[INFO] [stdout]     |                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rcombinators v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/primitives.rs:184:44
[INFO] [stdout]     |
[INFO] [stdout] 184 |             Err(e) => return Err(execerr(e.description())),
[INFO] [stdout]     |                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/combinators.rs:556:17
[INFO] [stdout]     |
[INFO] [stdout] 555 |                 panic!("lazy should not run this function!");
[INFO] [stdout]     |                 -------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 556 |                 Uint8::new()
[INFO] [stdout]     |                 ^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/primitives.rs:158:44
[INFO] [stdout]     |
[INFO] [stdout] 158 |                 Err(ParseError::ExecFail(e.description().to_string()))
[INFO] [stdout]     |                                            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/primitives.rs:177:40
[INFO] [stdout]     |
[INFO] [stdout] 177 |         Err(e) => return Err(execerr(e.description())),
[INFO] [stdout]     |                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/primitives.rs:184:44
[INFO] [stdout]     |
[INFO] [stdout] 184 |             Err(e) => return Err(execerr(e.description())),
[INFO] [stdout]     |                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "6cc559a749e58ef1675ce787213170c7b1f21c77ad241b03db43f83ef5851994", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cc559a749e58ef1675ce787213170c7b1f21c77ad241b03db43f83ef5851994", kill_on_drop: false }`
[INFO] [stdout] 6cc559a749e58ef1675ce787213170c7b1f21c77ad241b03db43f83ef5851994