[INFO] fetching crate cons-list 0.0.3...
[INFO] checking cons-list-0.0.3 against beta for pr-78714
[INFO] extracting crate cons-list 0.0.3 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate cons-list 0.0.3 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 cons-list 0.0.3
[INFO] finished tweaking crates.io crate cons-list 0.0.3
[INFO] tweaked toml for crates.io crate cons-list 0.0.3 written to /workspace/builds/worker-7/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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stdout] e8711fb1393cca704dd0c302473ae07d09a95a34803927631c37de051c306738
[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" "e8711fb1393cca704dd0c302473ae07d09a95a34803927631c37de051c306738", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8711fb1393cca704dd0c302473ae07d09a95a34803927631c37de051c306738", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8711fb1393cca704dd0c302473ae07d09a95a34803927631c37de051c306738", kill_on_drop: false }`
[INFO] [stdout] e8711fb1393cca704dd0c302473ae07d09a95a34803927631c37de051c306738
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] ae0c6aeb3011983c4c1731cc23ddce44c2b7b92c138a8da6b415fb6ce0412a69
[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" "ae0c6aeb3011983c4c1731cc23ddce44c2b7b92c138a8da6b415fb6ce0412a69", kill_on_drop: false }`
[INFO] [stderr]     Checking cons-list v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:223:9
[INFO] [stdout]     |
[INFO] [stdout] 223 |         try!(write!(f, "["));
[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/lib.rs:227:17
[INFO] [stdout]     |
[INFO] [stdout] 227 |                 try!(write!(f, ", "));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:229:13
[INFO] [stdout]     |
[INFO] [stdout] 229 |             try!(write!(f, "{:?}", *e));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:13:19
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![cfg_attr(test, feature(test))]
[INFO] [stdout]    |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:223:9
[INFO] [stdout]     |
[INFO] [stdout] 223 |         try!(write!(f, "["));
[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/lib.rs:227:17
[INFO] [stdout]     |
[INFO] [stdout] 227 |                 try!(write!(f, ", "));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:229:13
[INFO] [stdout]     |
[INFO] [stdout] 229 |             try!(write!(f, "{:?}", *e));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `test::Bencher`
[INFO] [stdout]    --> src/lib.rs:427:9
[INFO] [stdout]     |
[INFO] [stdout] 427 |     use test::Bencher;
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `std::hash::SipHasher`: use `std::collections::hash_map::DefaultHasher` instead
[INFO] [stdout]    --> src/lib.rs:359:21
[INFO] [stdout]     |
[INFO] [stdout] 359 |         let mut h = hash::SipHasher::new();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::hash::SipHasher::new`: use `std::collections::hash_map::DefaultHasher` instead
[INFO] [stdout]    --> src/lib.rs:359:21
[INFO] [stdout]     |
[INFO] [stdout] 359 |         let mut h = hash::SipHasher::new();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cons-list`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "ae0c6aeb3011983c4c1731cc23ddce44c2b7b92c138a8da6b415fb6ce0412a69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae0c6aeb3011983c4c1731cc23ddce44c2b7b92c138a8da6b415fb6ce0412a69", kill_on_drop: false }`
[INFO] [stdout] ae0c6aeb3011983c4c1731cc23ddce44c2b7b92c138a8da6b415fb6ce0412a69