[INFO] fetching crate antikoerper 0.2.0...
[INFO] checking antikoerper-0.2.0 against beta for pr-78714
[INFO] extracting crate antikoerper 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate antikoerper 0.2.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate antikoerper 0.2.0
[INFO] finished tweaking crates.io crate antikoerper 0.2.0
[INFO] tweaked toml for crates.io crate antikoerper 0.2.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] f06af53c0ebdf83fd9a2cc3f2ea9a8d0a149839a43f90637b6d82b125d3e6f69
[INFO] running `Command { std: "docker" "start" "-a" "f06af53c0ebdf83fd9a2cc3f2ea9a8d0a149839a43f90637b6d82b125d3e6f69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f06af53c0ebdf83fd9a2cc3f2ea9a8d0a149839a43f90637b6d82b125d3e6f69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f06af53c0ebdf83fd9a2cc3f2ea9a8d0a149839a43f90637b6d82b125d3e6f69", kill_on_drop: false }`
[INFO] [stdout] f06af53c0ebdf83fd9a2cc3f2ea9a8d0a149839a43f90637b6d82b125d3e6f69
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d3acab2175ade4e391690a03633694b6ee1373dcbc70e4e5b6b7eb20b4b4925
[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" "1d3acab2175ade4e391690a03633694b6ee1373dcbc70e4e5b6b7eb20b4b4925", kill_on_drop: false }`
[INFO] [stderr]     Checking toml v0.1.30
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking antikoerper v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/conf.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |         try!(r.read_to_string(&mut buffer));
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/item.rs:183:20
[INFO] [stdout]     |
[INFO] [stdout] 183 |         let kind = try!(sources.into_iter().filter(|x| x.is_ok()).next().unwrap());
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/conf.rs:35:23
[INFO] [stdout]    |
[INFO] [stdout] 35 |     cause: Option<Box<::std::error::Error>>,
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/conf.rs:69:21
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub fn load(r: &mut Read, o: PathBuf) -> Result<Config, ConfigError> {
[INFO] [stdout]    |                     ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/conf.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |         try!(r.read_to_string(&mut buffer));
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/item.rs:183:20
[INFO] [stdout]     |
[INFO] [stdout] 183 |         let kind = try!(sources.into_iter().filter(|x| x.is_ok()).next().unwrap());
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/conf.rs:35:23
[INFO] [stdout]    |
[INFO] [stdout] 35 |     cause: Option<Box<::std::error::Error>>,
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/conf.rs:69:21
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub fn load(r: &mut Read, o: PathBuf) -> Result<Config, ConfigError> {
[INFO] [stdout]    |                     ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/item.rs:224:9
[INFO] [stdout]     |
[INFO] [stdout] 220 |             return ::std::cmp::Ordering::Greater
[INFO] [stdout]     |             ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 224 |         ::std::cmp::Ordering::Equal
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/item.rs:224:9
[INFO] [stdout]     |
[INFO] [stdout] 220 |             return ::std::cmp::Ordering::Greater
[INFO] [stdout]     |             ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 224 |         ::std::cmp::Ordering::Equal
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.03s
[INFO] running `Command { std: "docker" "inspect" "1d3acab2175ade4e391690a03633694b6ee1373dcbc70e4e5b6b7eb20b4b4925", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d3acab2175ade4e391690a03633694b6ee1373dcbc70e4e5b6b7eb20b4b4925", kill_on_drop: false }`
[INFO] [stdout] 1d3acab2175ade4e391690a03633694b6ee1373dcbc70e4e5b6b7eb20b4b4925