[INFO] fetching crate rcombinators 0.1.0...
[INFO] checking rcombinators-0.1.0 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate rcombinators 0.1.0 into /workspace/builds/worker-103/source
[INFO] validating manifest of crates.io crate rcombinators 0.1.0 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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-103/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--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-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 41d372a646101fe205e1fdf6d72c61ec36f715eee345c7fbcc078a314bf417b6
[INFO] running `Command { std: "docker" "start" "-a" "41d372a646101fe205e1fdf6d72c61ec36f715eee345c7fbcc078a314bf417b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41d372a646101fe205e1fdf6d72c61ec36f715eee345c7fbcc078a314bf417b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41d372a646101fe205e1fdf6d72c61ec36f715eee345c7fbcc078a314bf417b6", kill_on_drop: false }`
[INFO] [stdout] 41d372a646101fe205e1fdf6d72c61ec36f715eee345c7fbcc078a314bf417b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1b34670a64827e79f5f89ec7c83465bec71994b06a78c504c80fded61ece800
[INFO] running `Command { std: "docker" "start" "-a" "e1b34670a64827e79f5f89ec7c83465bec71994b06a78c504c80fded61ece800", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]     Checking utf8reader v0.1.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking time-test v0.2.2
[INFO] [stderr]     Checking rcombinators v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `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 associated function `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 associated function `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 associated function `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: use of deprecated associated function `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 associated function `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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.79s
[INFO] running `Command { std: "docker" "inspect" "e1b34670a64827e79f5f89ec7c83465bec71994b06a78c504c80fded61ece800", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1b34670a64827e79f5f89ec7c83465bec71994b06a78c504c80fded61ece800", kill_on_drop: false }`
[INFO] [stdout] e1b34670a64827e79f5f89ec7c83465bec71994b06a78c504c80fded61ece800