[INFO] fetching crate named_constants 0.1.0...
[INFO] testing named_constants-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate named_constants 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate named_constants 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate named_constants 0.1.0
[INFO] finished tweaking crates.io crate named_constants 0.1.0
[INFO] tweaked toml for crates.io crate named_constants 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71d77f5de28e13e8fc4d5e33111e3c03c128645e5d213e9259f83cfdd53659d9
[INFO] running `Command { std: "docker" "start" "-a" "71d77f5de28e13e8fc4d5e33111e3c03c128645e5d213e9259f83cfdd53659d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71d77f5de28e13e8fc4d5e33111e3c03c128645e5d213e9259f83cfdd53659d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71d77f5de28e13e8fc4d5e33111e3c03c128645e5d213e9259f83cfdd53659d9", kill_on_drop: false }`
[INFO] [stdout] 71d77f5de28e13e8fc4d5e33111e3c03c128645e5d213e9259f83cfdd53659d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7acf5d1471cd97ec9ecb129dd1a500821abbc9f1e55686a0e74c2bb8bf05dbc0
[INFO] running `Command { std: "docker" "start" "-a" "7acf5d1471cd97ec9ecb129dd1a500821abbc9f1e55686a0e74c2bb8bf05dbc0", kill_on_drop: false }`
[INFO] [stderr]    Compiling named_constants v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]    --> src/lib.rs:238:43
[INFO] [stdout]     |
[INFO] [stdout] 238 |                 _ => panic!("named constants must use { } to declare the constants"),
[INFO] [stdout]     |                                                       ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]     |
[INFO] [stdout] 238 |                 _ => panic!("named constants must use { } to declare the constants", ...),
[INFO] [stdout]     |                                                                                    ^^^^^
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 238 |                 _ => panic!("{}", "named constants must use { } to declare the constants"),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.76s
[INFO] running `Command { std: "docker" "inspect" "7acf5d1471cd97ec9ecb129dd1a500821abbc9f1e55686a0e74c2bb8bf05dbc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7acf5d1471cd97ec9ecb129dd1a500821abbc9f1e55686a0e74c2bb8bf05dbc0", kill_on_drop: false }`
[INFO] [stdout] 7acf5d1471cd97ec9ecb129dd1a500821abbc9f1e55686a0e74c2bb8bf05dbc0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 377a2791aa6f531f10582a6d84d166c000b130e9880bb7b53f4bd9baa9f19db1
[INFO] running `Command { std: "docker" "start" "-a" "377a2791aa6f531f10582a6d84d166c000b130e9880bb7b53f4bd9baa9f19db1", 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] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]    --> src/lib.rs:238:43
[INFO] [stdout]     |
[INFO] [stdout] 238 |                 _ => panic!("named constants must use { } to declare the constants"),
[INFO] [stdout]     |                                                       ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]     |
[INFO] [stdout] 238 |                 _ => panic!("named constants must use { } to declare the constants", ...),
[INFO] [stdout]     |                                                                                    ^^^^^
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 238 |                 _ => panic!("{}", "named constants must use { } to declare the constants"),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling named_constants v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]    --> src/lib.rs:238:43
[INFO] [stdout]     |
[INFO] [stdout] 238 |                 _ => panic!("named constants must use { } to declare the constants"),
[INFO] [stdout]     |                                                       ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]     |
[INFO] [stdout] 238 |                 _ => panic!("named constants must use { } to declare the constants", ...),
[INFO] [stdout]     |                                                                                    ^^^^^
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 238 |                 _ => panic!("{}", "named constants must use { } to declare the constants"),
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "377a2791aa6f531f10582a6d84d166c000b130e9880bb7b53f4bd9baa9f19db1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "377a2791aa6f531f10582a6d84d166c000b130e9880bb7b53f4bd9baa9f19db1", kill_on_drop: false }`
[INFO] [stdout] 377a2791aa6f531f10582a6d84d166c000b130e9880bb7b53f4bd9baa9f19db1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 77b532339898e641cc3f99b80b9ddcb1fb351392a3ee368f32b73dc2dd19e30b
[INFO] running `Command { std: "docker" "start" "-a" "77b532339898e641cc3f99b80b9ddcb1fb351392a3ee368f32b73dc2dd19e30b", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: panic message contains an unused formatting placeholder
[INFO] [stdout] running 0 tests
[INFO] [stderr]    --> src/lib.rs:238:43
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 238 |                 _ => panic!("named constants must use { } to declare the constants"),
[INFO] [stdout] 
[INFO] [stderr]     |                                                       ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr]     = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stderr] help: add the missing argument
[INFO] [stderr]     |
[INFO] [stderr] 238 |                 _ => panic!("named constants must use { } to declare the constants", ...),
[INFO] [stderr]     |                                                                                    ^^^^^
[INFO] [stderr] help: or add a "{}" format string to use the message literally
[INFO] [stderr]     |
[INFO] [stderr] 238 |                 _ => panic!("{}", "named constants must use { } to declare the constants"),
[INFO] [stderr]     |                             ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `named_constants` (lib) generated 1 warning
[INFO] [stderr] warning: `named_constants` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/named_constants-97f94c772a69cf81)
[INFO] [stderr]      Running tests/main.rs (/opt/rustwide/target/debug/deps/main-6b68a60bbc32ad75)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test autoincrement2 ... ok
[INFO] [stderr]    Doc-tests named_constants
[INFO] [stdout] test constant_attributes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - named_constants (line 36) ... ok
[INFO] [stdout] test src/lib.rs - named_constants (line 13) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.41s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "77b532339898e641cc3f99b80b9ddcb1fb351392a3ee368f32b73dc2dd19e30b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77b532339898e641cc3f99b80b9ddcb1fb351392a3ee368f32b73dc2dd19e30b", kill_on_drop: false }`
[INFO] [stdout] 77b532339898e641cc3f99b80b9ddcb1fb351392a3ee368f32b73dc2dd19e30b