[INFO] fetching crate interpol 0.2.1...
[INFO] testing interpol-0.2.1 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate interpol 0.2.1 into /workspace/builds/worker-28/source
[INFO] validating manifest of crates.io crate interpol 0.2.1 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-28/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b3e2d37e2bdce4aa53eab85f14474f1b09540e789493e2537380d80d961c3bf3
[INFO] running `Command { std: "docker" "start" "-a" "b3e2d37e2bdce4aa53eab85f14474f1b09540e789493e2537380d80d961c3bf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3e2d37e2bdce4aa53eab85f14474f1b09540e789493e2537380d80d961c3bf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3e2d37e2bdce4aa53eab85f14474f1b09540e789493e2537380d80d961c3bf3", kill_on_drop: false }`
[INFO] [stdout] b3e2d37e2bdce4aa53eab85f14474f1b09540e789493e2537380d80d961c3bf3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e94d59c9bfca8f7aefb4c5ee05282044e897365395c9bb81daca5a178c8765e8
[INFO] running `Command { std: "docker" "start" "-a" "e94d59c9bfca8f7aefb4c5ee05282044e897365395c9bb81daca5a178c8765e8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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_panics)]` 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 1.86s
[INFO] running `Command { std: "docker" "inspect" "e94d59c9bfca8f7aefb4c5ee05282044e897365395c9bb81daca5a178c8765e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e94d59c9bfca8f7aefb4c5ee05282044e897365395c9bb81daca5a178c8765e8", kill_on_drop: false }`
[INFO] [stdout] e94d59c9bfca8f7aefb4c5ee05282044e897365395c9bb81daca5a178c8765e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41512785fc27d1d8c3201bd2b38d3e060db364dc9573b6fa7f55d760a69f3e2b
[INFO] running `Command { std: "docker" "start" "-a" "41512785fc27d1d8c3201bd2b38d3e060db364dc9573b6fa7f55d760a69f3e2b", kill_on_drop: false }`
[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_panics)]` 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] [stderr]    Compiling interpol v0.2.1 (/opt/rustwide/workdir)
[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_panics)]` 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 0.42s
[INFO] running `Command { std: "docker" "inspect" "41512785fc27d1d8c3201bd2b38d3e060db364dc9573b6fa7f55d760a69f3e2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41512785fc27d1d8c3201bd2b38d3e060db364dc9573b6fa7f55d760a69f3e2b", kill_on_drop: false }`
[INFO] [stdout] 41512785fc27d1d8c3201bd2b38d3e060db364dc9573b6fa7f55d760a69f3e2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bba5d05f78f5b591f1ec08e7c156fd1b452f4658747aafa0d992e3036c819b96
[INFO] running `Command { std: "docker" "start" "-a" "bba5d05f78f5b591f1ec08e7c156fd1b452f4658747aafa0d992e3036c819b96", kill_on_drop: false }`
[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_panics)]` 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: `interpol` (lib) generated 1 warning
[INFO] [stderr] warning: `interpol` (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/interpol-9e97b9feae49b698)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test.rs (/opt/rustwide/target/debug/deps/test-cd5b4a2c215a17b0)
[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] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_escaping ... ok
[INFO] [stdout] test test_write ... ok
[INFO] [stdout] test test_writeln ... ok
[INFO] [stderr]    Doc-tests interpol
[INFO] [stdout] test test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - (line 33) ... ok
[INFO] [stdout] test src/lib.rs - (line 54) ... ok
[INFO] [stdout] test src/lib.rs - (line 42) ... ok
[INFO] [stdout] test src/lib.rs - (line 10) ... 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 0.27s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bba5d05f78f5b591f1ec08e7c156fd1b452f4658747aafa0d992e3036c819b96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bba5d05f78f5b591f1ec08e7c156fd1b452f4658747aafa0d992e3036c819b96", kill_on_drop: false }`
[INFO] [stdout] bba5d05f78f5b591f1ec08e7c156fd1b452f4658747aafa0d992e3036c819b96