[INFO] fetching crate ifmt-impl 0.3.2...
[INFO] testing ifmt-impl-0.3.2 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] extracting crate ifmt-impl 0.3.2 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate ifmt-impl 0.3.2 on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ifmt-impl 0.3.2
[INFO] finished tweaking crates.io crate ifmt-impl 0.3.2
[INFO] tweaked toml for crates.io crate ifmt-impl 0.3.2 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 004a416d6adda7e95fb7293efa6014d94f0b999e43ad737f0e058414abb6fa15
[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" "004a416d6adda7e95fb7293efa6014d94f0b999e43ad737f0e058414abb6fa15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "004a416d6adda7e95fb7293efa6014d94f0b999e43ad737f0e058414abb6fa15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "004a416d6adda7e95fb7293efa6014d94f0b999e43ad737f0e058414abb6fa15", kill_on_drop: false }`
[INFO] [stdout] 004a416d6adda7e95fb7293efa6014d94f0b999e43ad737f0e058414abb6fa15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e47ddca55f6b7e163cce9dd351ca869594612bb8788267ded11320076c152290
[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" "e47ddca55f6b7e163cce9dd351ca869594612bb8788267ded11320076c152290", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling syn v1.0.52
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling ifmt-impl v0.3.2 (/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: `#[warn(panic_fmt)]` on by default
[INFO] [stdout]    = note: this message is not used as a format string, but will be in a future Rust edition
[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 a future Rust edition
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.00s
[INFO] running `Command { std: "docker" "inspect" "e47ddca55f6b7e163cce9dd351ca869594612bb8788267ded11320076c152290", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e47ddca55f6b7e163cce9dd351ca869594612bb8788267ded11320076c152290", kill_on_drop: false }`
[INFO] [stdout] e47ddca55f6b7e163cce9dd351ca869594612bb8788267ded11320076c152290
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb02a82e4950e508e070540dea96a132b04418c38b4f46e2b9609bb3f090c569
[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" "fb02a82e4950e508e070540dea96a132b04418c38b4f46e2b9609bb3f090c569", kill_on_drop: false }`
[INFO] [stderr]    Compiling ifmt-impl v0.3.2 (/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: `#[warn(panic_fmt)]` on by default
[INFO] [stdout]    = note: this message is not used as a format string, but will be in a future Rust edition
[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 a future Rust edition
[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: 2 warnings emitted
[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: `#[warn(panic_fmt)]` on by default
[INFO] [stdout]    = note: this message is not used as a format string, but will be in a future Rust edition
[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 a future Rust edition
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.49s
[INFO] running `Command { std: "docker" "inspect" "fb02a82e4950e508e070540dea96a132b04418c38b4f46e2b9609bb3f090c569", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb02a82e4950e508e070540dea96a132b04418c38b4f46e2b9609bb3f090c569", kill_on_drop: false }`
[INFO] [stdout] fb02a82e4950e508e070540dea96a132b04418c38b4f46e2b9609bb3f090c569
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e91b0455170f2f5fff3d82208afb78bb717d8f53c7523d079705c1cb489a0cc9
[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" "e91b0455170f2f5fff3d82208afb78bb717d8f53c7523d079705c1cb489a0cc9", 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: `#[warn(panic_fmt)]` on by default
[INFO] [stderr]    = note: this message is not used as a format string, but will be in a future Rust edition
[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] [stderr]    --> src/lib.rs:326:43
[INFO] [stderr]     |
[INFO] [stderr] 326 |                         panic!("unmatched }");
[INFO] [stderr]     |                                           ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this message is not used as a format string, but will be in a future Rust edition
[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: 2 warnings emitted
[INFO] [stderr] 
[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: `#[warn(panic_fmt)]` on by default
[INFO] [stderr]    = note: this message is not used as a format string, but will be in a future Rust edition
[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] [stderr]    --> src/lib.rs:326:43
[INFO] [stderr]     |
[INFO] [stderr] 326 |                         panic!("unmatched }");
[INFO] [stderr]     |                                           ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this message is not used as a format string, but will be in a future Rust edition
[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: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ifmt_impl-5a46324e96513788
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ifmt-impl
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e91b0455170f2f5fff3d82208afb78bb717d8f53c7523d079705c1cb489a0cc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e91b0455170f2f5fff3d82208afb78bb717d8f53c7523d079705c1cb489a0cc9", kill_on_drop: false }`
[INFO] [stdout] e91b0455170f2f5fff3d82208afb78bb717d8f53c7523d079705c1cb489a0cc9