[INFO] fetching crate ifmt-impl 0.3.3...
[INFO] testing ifmt-impl-0.3.3 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate ifmt-impl 0.3.3 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate ifmt-impl 0.3.3
[INFO] finished tweaking crates.io crate ifmt-impl 0.3.3
[INFO] tweaked toml for crates.io crate ifmt-impl 0.3.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ifmt-impl 0.3.3 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.110)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee80041cebe7956cd9495f8fb4be15b3e735a7be37ff00219cc74a57f8f6789b
[INFO] running `Command { std: "docker" "start" "-a" "ee80041cebe7956cd9495f8fb4be15b3e735a7be37ff00219cc74a57f8f6789b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee80041cebe7956cd9495f8fb4be15b3e735a7be37ff00219cc74a57f8f6789b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee80041cebe7956cd9495f8fb4be15b3e735a7be37ff00219cc74a57f8f6789b", kill_on_drop: false }`
[INFO] [stdout] ee80041cebe7956cd9495f8fb4be15b3e735a7be37ff00219cc74a57f8f6789b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3561c62bb35ad5ff0b5de42e80e106914d840bb0551223d20230c15677a251f
[INFO] running `Command { std: "docker" "start" "-a" "e3561c62bb35ad5ff0b5de42e80e106914d840bb0551223d20230c15677a251f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling ifmt-impl v0.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message contains a brace
[INFO] [stdout]   --> src/lib.rs:82:24
[INFO] [stdout]    |
[INFO] [stdout] 82 |     panic!("unbalanced {");
[INFO] [stdout]    |                        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 82 |     panic!("{}", "unbalanced {");
[INFO] [stdout]    |            +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains a brace
[INFO] [stdout]    --> src/lib.rs:326:43
[INFO] [stdout]     |
[INFO] [stdout] 326 |                         panic!("unmatched }");
[INFO] [stdout]     |                                           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 326 |                         panic!("{}", "unmatched }");
[INFO] [stdout]     |                                +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.29s
[INFO] running `Command { std: "docker" "inspect" "e3561c62bb35ad5ff0b5de42e80e106914d840bb0551223d20230c15677a251f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3561c62bb35ad5ff0b5de42e80e106914d840bb0551223d20230c15677a251f", kill_on_drop: false }`
[INFO] [stdout] e3561c62bb35ad5ff0b5de42e80e106914d840bb0551223d20230c15677a251f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 441c7356c31acd1a626cb225cfa005bfd4329cec816626fea498ac497619fa8d
[INFO] running `Command { std: "docker" "start" "-a" "441c7356c31acd1a626cb225cfa005bfd4329cec816626fea498ac497619fa8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling ifmt-impl v0.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message contains a brace
[INFO] [stdout]   --> src/lib.rs:82:24
[INFO] [stdout]    |
[INFO] [stdout] 82 |     panic!("unbalanced {");
[INFO] [stdout]    |                        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 82 |     panic!("{}", "unbalanced {");
[INFO] [stdout]    |            +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains a brace
[INFO] [stdout]    --> src/lib.rs:326:43
[INFO] [stdout]     |
[INFO] [stdout] 326 |                         panic!("unmatched }");
[INFO] [stdout]     |                                           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 326 |                         panic!("{}", "unmatched }");
[INFO] [stdout]     |                                +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains a brace
[INFO] [stdout]   --> src/lib.rs:82:24
[INFO] [stdout]    |
[INFO] [stdout] 82 |     panic!("unbalanced {");
[INFO] [stdout]    |                        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 82 |     panic!("{}", "unbalanced {");
[INFO] [stdout]    |            +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains a brace
[INFO] [stdout]    --> src/lib.rs:326:43
[INFO] [stdout]     |
[INFO] [stdout] 326 |                         panic!("unmatched }");
[INFO] [stdout]     |                                           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 326 |                         panic!("{}", "unmatched }");
[INFO] [stdout]     |                                +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "441c7356c31acd1a626cb225cfa005bfd4329cec816626fea498ac497619fa8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "441c7356c31acd1a626cb225cfa005bfd4329cec816626fea498ac497619fa8d", kill_on_drop: false }`
[INFO] [stdout] 441c7356c31acd1a626cb225cfa005bfd4329cec816626fea498ac497619fa8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 966c67fc880cc46003e6130cb9f83be7bc7ecceefa32b499ad3bf32149c60db2
[INFO] running `Command { std: "docker" "start" "-a" "966c67fc880cc46003e6130cb9f83be7bc7ecceefa32b499ad3bf32149c60db2", kill_on_drop: false }`
[INFO] [stderr] warning: panic message contains a brace
[INFO] [stderr]   --> src/lib.rs:82:24
[INFO] [stderr]    |
[INFO] [stderr] 82 |     panic!("unbalanced {");
[INFO] [stderr]    |                        ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stderr]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: add a "{}" format string to use the message literally
[INFO] [stderr]    |
[INFO] [stderr] 82 |     panic!("{}", "unbalanced {");
[INFO] [stderr]    |            +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message contains a brace
[INFO] [stdout] 
[INFO] [stderr]    --> src/lib.rs:326:43
[INFO] [stdout] running 0 tests
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr] 326 |                         panic!("unmatched }");
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]     |                                           ^
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stderr]     = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stderr] help: add a "{}" format string to use the message literally
[INFO] [stderr]     |
[INFO] [stderr] 326 |                         panic!("{}", "unmatched }");
[INFO] [stderr]     |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: `ifmt-impl` (lib) generated 2 warnings (run `cargo fix --lib -p ifmt-impl` to apply 2 suggestions)
[INFO] [stderr] warning: `ifmt-impl` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ifmt_impl-11f865a1f13df797)
[INFO] [stderr]    Doc-tests ifmt_impl
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "966c67fc880cc46003e6130cb9f83be7bc7ecceefa32b499ad3bf32149c60db2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "966c67fc880cc46003e6130cb9f83be7bc7ecceefa32b499ad3bf32149c60db2", kill_on_drop: false }`
[INFO] [stdout] 966c67fc880cc46003e6130cb9f83be7bc7ecceefa32b499ad3bf32149c60db2