[INFO] fetching crate ranged_type 0.1.0...
[INFO] checking ranged_type-0.1.0 against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] extracting crate ranged_type 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate ranged_type 0.1.0 on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-8/source/rust-toolchain
[INFO] started tweaking crates.io crate ranged_type 0.1.0
[INFO] finished tweaking crates.io crate ranged_type 0.1.0
[INFO] tweaked toml for crates.io crate ranged_type 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c04d9e0267c5a713a6eca95537beded9e0bd2033cd111d075503a3668671e544
[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" "c04d9e0267c5a713a6eca95537beded9e0bd2033cd111d075503a3668671e544", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c04d9e0267c5a713a6eca95537beded9e0bd2033cd111d075503a3668671e544", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c04d9e0267c5a713a6eca95537beded9e0bd2033cd111d075503a3668671e544", kill_on_drop: false }`
[INFO] [stdout] c04d9e0267c5a713a6eca95537beded9e0bd2033cd111d075503a3668671e544
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 9c5de94ece4ffdb882bbb3e0ff1e4a384268d694e67e0e3d385f1b9de7a7b4c5
[INFO] running `Command { std: "docker" "start" "-a" "9c5de94ece4ffdb882bbb3e0ff1e4a384268d694e67e0e3d385f1b9de7a7b4c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]     Checking yansi v0.5.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]     Checking libc v0.2.93
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling assert2-macros v0.3.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking assert2 v0.3.5
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking arith_traits v0.1.0
[INFO] [stderr]     Checking arith_wrappers v0.1.0
[INFO] [stderr]     Checking ranged_type v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0635]: unknown feature `const_checked_int_methods`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     const_checked_int_methods,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/ranged_i32.rs:18:48
[INFO] [stdout]    |
[INFO] [stdout] 18 |     const INVARIANT: () = assert!(START < END, msg::ERR_INVALID_RANGE_BOUNDS);
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 18 |     const INVARIANT: () = assert!(START < END, "{}", msg::ERR_INVALID_RANGE_BOUNDS);
[INFO] [stdout]    |                                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ranged_type`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0635]: unknown feature `const_checked_int_methods`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     const_checked_int_methods,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/ranged_i32.rs:18:48
[INFO] [stdout]    |
[INFO] [stdout] 18 |     const INVARIANT: () = assert!(START < END, msg::ERR_INVALID_RANGE_BOUNDS);
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 18 |     const INVARIANT: () = assert!(START < END, "{}", msg::ERR_INVALID_RANGE_BOUNDS);
[INFO] [stdout]    |                                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "9c5de94ece4ffdb882bbb3e0ff1e4a384268d694e67e0e3d385f1b9de7a7b4c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c5de94ece4ffdb882bbb3e0ff1e4a384268d694e67e0e3d385f1b9de7a7b4c5", kill_on_drop: false }`
[INFO] [stdout] 9c5de94ece4ffdb882bbb3e0ff1e4a384268d694e67e0e3d385f1b9de7a7b4c5