[INFO] fetching crate interpol 0.2.1...
[INFO] testing interpol-0.2.1 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate interpol 0.2.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate interpol 0.2.1 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate interpol 0.2.1
[INFO] finished tweaking crates.io crate interpol 0.2.1
[INFO] tweaked toml for crates.io crate interpol 0.2.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c5675af4eacb99ec40b76c859416616aa9426c35676702de567b1d4885d9226
[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" "0c5675af4eacb99ec40b76c859416616aa9426c35676702de567b1d4885d9226", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c5675af4eacb99ec40b76c859416616aa9426c35676702de567b1d4885d9226", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c5675af4eacb99ec40b76c859416616aa9426c35676702de567b1d4885d9226", kill_on_drop: false }`
[INFO] [stdout] 0c5675af4eacb99ec40b76c859416616aa9426c35676702de567b1d4885d9226
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5ebb47f1ec839fe32772132797dcf8c06b5c3c5761f602b99618d3236bf00f4
[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" "e5ebb47f1ec839fe32772132797dcf8c06b5c3c5761f602b99618d3236bf00f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling interpol v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message contains a brace
[INFO] [stdout]    --> src/lib.rs:104:49
[INFO] [stdout]     |
[INFO] [stdout] 104 |                 panic!("incorrect occurence of `}`");
[INFO] [stdout]     |                                                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[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] 104 |                 panic!("{}", "incorrect occurence of `}`");
[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 8.70s
[INFO] running `Command { std: "docker" "inspect" "e5ebb47f1ec839fe32772132797dcf8c06b5c3c5761f602b99618d3236bf00f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5ebb47f1ec839fe32772132797dcf8c06b5c3c5761f602b99618d3236bf00f4", kill_on_drop: false }`
[INFO] [stdout] e5ebb47f1ec839fe32772132797dcf8c06b5c3c5761f602b99618d3236bf00f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f3556448e5a71ed6b37421c4074a23fc7c0272d0963375720c9a91961ae98b4
[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" "2f3556448e5a71ed6b37421c4074a23fc7c0272d0963375720c9a91961ae98b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling interpol v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message contains a brace
[INFO] [stdout]    --> src/lib.rs:104:49
[INFO] [stdout]     |
[INFO] [stdout] 104 |                 panic!("incorrect occurence of `}`");
[INFO] [stdout]     |                                                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[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] 104 |                 panic!("{}", "incorrect occurence of `}`");
[INFO] [stdout]     |                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains a brace
[INFO] [stdout]    --> src/lib.rs:104:49
[INFO] [stdout]     |
[INFO] [stdout] 104 |                 panic!("incorrect occurence of `}`");
[INFO] [stdout]     |                                                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[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] 104 |                 panic!("{}", "incorrect occurence of `}`");
[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 0.71s
[INFO] running `Command { std: "docker" "inspect" "2f3556448e5a71ed6b37421c4074a23fc7c0272d0963375720c9a91961ae98b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f3556448e5a71ed6b37421c4074a23fc7c0272d0963375720c9a91961ae98b4", kill_on_drop: false }`
[INFO] [stdout] 2f3556448e5a71ed6b37421c4074a23fc7c0272d0963375720c9a91961ae98b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c60e957bbf23394ae4adc3f6b74a3a569f4a6cfd50051f304bdf55505a7b7d28
[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" "c60e957bbf23394ae4adc3f6b74a3a569f4a6cfd50051f304bdf55505a7b7d28", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: panic message contains a brace
[INFO] [stdout] running 0 tests
[INFO] [stderr]    --> src/lib.rs:104:49
[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] 104 |                 panic!("incorrect occurence of `}`");
[INFO] [stdout] 
[INFO] [stderr]     |                                                 ^
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] running 4 tests
[INFO] [stderr]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout] test test_escaping ... ok
[INFO] [stderr]     = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout] test test ... ok
[INFO] [stderr] help: add a "{}" format string to use the message literally
[INFO] [stdout] test test_writeln ... ok
[INFO] [stderr]     |
[INFO] [stdout] test test_write ... ok
[INFO] [stderr] 104 |                 panic!("{}", "incorrect occurence of `}`");
[INFO] [stdout] 
[INFO] [stderr]     |                        ^^^^^
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: panic message contains a brace
[INFO] [stderr]    --> src/lib.rs:104:49
[INFO] [stderr]     |
[INFO] [stderr] 104 |                 panic!("incorrect occurence of `}`");
[INFO] [stderr]     |                                                 ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_fmt_panic)]` on by default
[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] 104 |                 panic!("{}", "incorrect occurence of `}`");
[INFO] [stderr]     |                        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.21s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/interpol-1ed6c633c64c9b02)
[INFO] [stderr]      Running tests/test.rs (/opt/rustwide/target/debug/deps/test-038bb993e6164965)
[INFO] [stderr]    Doc-tests interpol
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - (line 10) ... ok
[INFO] [stdout] test src/lib.rs - (line 54) ... ok
[INFO] [stdout] test src/lib.rs - (line 33) ... ok
[INFO] [stdout] test src/lib.rs - (line 42) ... ok
[INFO] [stdout] test src/lib.rs - (line 20) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.58s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c60e957bbf23394ae4adc3f6b74a3a569f4a6cfd50051f304bdf55505a7b7d28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c60e957bbf23394ae4adc3f6b74a3a569f4a6cfd50051f304bdf55505a7b7d28", kill_on_drop: false }`
[INFO] [stdout] c60e957bbf23394ae4adc3f6b74a3a569f4a6cfd50051f304bdf55505a7b7d28