[INFO] cloning repository https://github.com/tamamu/gmml
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tamamu/gmml" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftamamu%2Fgmml", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftamamu%2Fgmml'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 62efdd50353d41e015058187aec6d0422a14ee2b
[INFO] testing tamamu/gmml against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftamamu%2Fgmml" "/workspace/builds/worker-61/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-61/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tamamu/gmml 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 git repo https://github.com/tamamu/gmml
[INFO] finished tweaking git repo https://github.com/tamamu/gmml
[INFO] tweaked toml for git repo https://github.com/tamamu/gmml written to /workspace/builds/worker-61/source/Cargo.toml
[INFO] crate git repo https://github.com/tamamu/gmml already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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] 452fb15eafba0173adb8b496408f5f545c64450ff2afe67d43ce9bd1b0eea7ec
[INFO] running `Command { std: "docker" "start" "-a" "452fb15eafba0173adb8b496408f5f545c64450ff2afe67d43ce9bd1b0eea7ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "452fb15eafba0173adb8b496408f5f545c64450ff2afe67d43ce9bd1b0eea7ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "452fb15eafba0173adb8b496408f5f545c64450ff2afe67d43ce9bd1b0eea7ec", kill_on_drop: false }`
[INFO] [stdout] 452fb15eafba0173adb8b496408f5f545c64450ff2afe67d43ce9bd1b0eea7ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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] 74a0fb40db782322febc3ea1b807a0f0355a765639b2c627352310a44eed86d8
[INFO] running `Command { std: "docker" "start" "-a" "74a0fb40db782322febc3ea1b807a0f0355a765639b2c627352310a44eed86d8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling gmml v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message contains a brace
[INFO] [stdout]    --> src/parse.rs:450:48
[INFO] [stdout]     |
[INFO] [stdout] 450 |             _ => panic!("parsing error: expect {, string, number, or identifier"),
[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] 450 |             _ => panic!("{}", "parsing error: expect {, string, number, or identifier"),
[INFO] [stdout]     |                         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains a brace
[INFO] [stdout]    --> src/parse.rs:514:48
[INFO] [stdout]     |
[INFO] [stdout] 514 |             _ => panic!("parsing error: expect {"),
[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] 514 |             _ => panic!("{}", "parsing error: expect {"),
[INFO] [stdout]     |                         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains a brace
[INFO] [stdout]    --> src/parse.rs:544:48
[INFO] [stdout]     |
[INFO] [stdout] 544 |             _ => panic!("parsing error: expect }"),
[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] 544 |             _ => panic!("{}", "parsing error: expect }"),
[INFO] [stdout]     |                         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/bin/gmml.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.10s
[INFO] running `Command { std: "docker" "inspect" "74a0fb40db782322febc3ea1b807a0f0355a765639b2c627352310a44eed86d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74a0fb40db782322febc3ea1b807a0f0355a765639b2c627352310a44eed86d8", kill_on_drop: false }`
[INFO] [stdout] 74a0fb40db782322febc3ea1b807a0f0355a765639b2c627352310a44eed86d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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] 63d1977cac7a107da8bb9a29f97a12c97922ece7965b42e1029759905b13efeb
[INFO] running `Command { std: "docker" "start" "-a" "63d1977cac7a107da8bb9a29f97a12c97922ece7965b42e1029759905b13efeb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: panic message contains a brace
[INFO] [stdout]    --> src/parse.rs:450:48
[INFO] [stdout]     |
[INFO] [stdout] 450 |             _ => panic!("parsing error: expect {, string, number, or identifier"),
[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] 450 |             _ => panic!("{}", "parsing error: expect {, string, number, or identifier"),
[INFO] [stdout]     |                         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling gmml v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message contains a brace
[INFO] [stdout]    --> src/parse.rs:514:48
[INFO] [stdout]     |
[INFO] [stdout] 514 |             _ => panic!("parsing error: expect {"),
[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] 514 |             _ => panic!("{}", "parsing error: expect {"),
[INFO] [stdout]     |                         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains a brace
[INFO] [stdout]    --> src/parse.rs:544:48
[INFO] [stdout]     |
[INFO] [stdout] 544 |             _ => panic!("parsing error: expect }"),
[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] 544 |             _ => panic!("{}", "parsing error: expect }"),
[INFO] [stdout]     |                         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/bin/gmml.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/bin/gmml.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains a brace
[INFO] [stdout]    --> src/parse.rs:450:48
[INFO] [stdout]     |
[INFO] [stdout] 450 |             _ => panic!("parsing error: expect {, string, number, or identifier"),
[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] 450 |             _ => panic!("{}", "parsing error: expect {, string, number, or identifier"),
[INFO] [stdout]     |                         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains a brace
[INFO] [stdout]    --> src/parse.rs:514:48
[INFO] [stdout]     |
[INFO] [stdout] 514 |             _ => panic!("parsing error: expect {"),
[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] 514 |             _ => panic!("{}", "parsing error: expect {"),
[INFO] [stdout]     |                         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains a brace
[INFO] [stdout]    --> src/parse.rs:544:48
[INFO] [stdout]     |
[INFO] [stdout] 544 |             _ => panic!("parsing error: expect }"),
[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] 544 |             _ => panic!("{}", "parsing error: expect }"),
[INFO] [stdout]     |                         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.98s
[INFO] running `Command { std: "docker" "inspect" "63d1977cac7a107da8bb9a29f97a12c97922ece7965b42e1029759905b13efeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63d1977cac7a107da8bb9a29f97a12c97922ece7965b42e1029759905b13efeb", kill_on_drop: false }`
[INFO] [stdout] 63d1977cac7a107da8bb9a29f97a12c97922ece7965b42e1029759905b13efeb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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] 703729d3ba66fcc13c457b2bd3537426090389001015cdf429e97e58d4d1233b
[INFO] running `Command { std: "docker" "start" "-a" "703729d3ba66fcc13c457b2bd3537426090389001015cdf429e97e58d4d1233b", kill_on_drop: false }`
[INFO] [stderr] warning: panic message contains a brace
[INFO] [stderr]    --> src/parse.rs:450:48
[INFO] [stderr]     |
[INFO] [stderr] 450 |             _ => panic!("parsing error: expect {, string, number, or identifier"),
[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] 450 |             _ => panic!("{}", "parsing error: expect {, string, number, or identifier"),
[INFO] [stderr]     |                         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message contains a brace
[INFO] [stderr]    --> src/parse.rs:514:48
[INFO] [stderr]     |
[INFO] [stderr] 514 |             _ => panic!("parsing error: expect {"),
[INFO] [stderr]     |                                                ^
[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] 514 |             _ => panic!("{}", "parsing error: expect {"),
[INFO] [stderr]     |                         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message contains a brace
[INFO] [stderr]    --> src/parse.rs:544:48
[INFO] [stderr]     |
[INFO] [stderr] 544 |             _ => panic!("parsing error: expect }"),
[INFO] [stderr]     |                                                ^
[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] 544 |             _ => panic!("{}", "parsing error: expect }"),
[INFO] [stderr]     |                         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `gmml` (lib) generated 3 warnings
[INFO] [stderr] warning: `gmml` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr] warning: unused import: `std::fs`
[INFO] [stderr]  --> src/bin/gmml.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fs;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `gmml` (bin "gmml") generated 1 warning
[INFO] [stderr] warning: `gmml` (bin "gmml" 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/gmml-94aefd075cc09e7a)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/gmml-56f296e5a67067ae)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/example.rs (/opt/rustwide/target/debug/deps/example-45ba0dd259ed181a)
[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 1 test
[INFO] [stdout] test tests::parse_example ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests gmml
[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" "703729d3ba66fcc13c457b2bd3537426090389001015cdf429e97e58d4d1233b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "703729d3ba66fcc13c457b2bd3537426090389001015cdf429e97e58d4d1233b", kill_on_drop: false }`
[INFO] [stdout] 703729d3ba66fcc13c457b2bd3537426090389001015cdf429e97e58d4d1233b