[INFO] fetching crate binjs_meta 0.5.4...
[INFO] checking binjs_meta-0.5.4 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate binjs_meta 0.5.4 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate binjs_meta 0.5.4 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate binjs_meta 0.5.4
[INFO] finished tweaking crates.io crate binjs_meta 0.5.4
[INFO] tweaked toml for crates.io crate binjs_meta 0.5.4 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate binjs_meta 0.5.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded atty v0.2.6
[INFO] [stderr]   Downloaded termion v1.5.1
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b9aecc00ca4aaac7ecff52bcd8b8dbc562d7afc680751fe3f467c32187cd8d0d
[INFO] running `Command { std: "docker" "start" "-a" "b9aecc00ca4aaac7ecff52bcd8b8dbc562d7afc680751fe3f467c32187cd8d0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9aecc00ca4aaac7ecff52bcd8b8dbc562d7afc680751fe3f467c32187cd8d0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9aecc00ca4aaac7ecff52bcd8b8dbc562d7afc680751fe3f467c32187cd8d0d", kill_on_drop: false }`
[INFO] [stdout] b9aecc00ca4aaac7ecff52bcd8b8dbc562d7afc680751fe3f467c32187cd8d0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd52ad68e74199536d87aaacf63d0f4663100d60018e09fdf5c9ebebe65227c2
[INFO] running `Command { std: "docker" "start" "-a" "dd52ad68e74199536d87aaacf63d0f4663100d60018e09fdf5c9ebebe65227c2", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.36
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]    Compiling regex v1.0.3
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking regex-syntax v0.6.16
[INFO] [stderr]     Checking either v1.4.0
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking Inflector v0.11.4
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking linked-hash-map v0.5.1
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]     Checking ansi_term v0.10.2
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking atty v0.2.6
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking yaml-rust v0.4.0
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking clap v2.30.0
[INFO] [stderr]     Checking weedle v0.11.0
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking binjs_meta v0.5.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]  --> src/spec.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std;
[INFO] [stdout]   |     ^^^ the item `std` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]    --> src/util.rs:366:9
[INFO] [stdout]     |
[INFO] [stdout] 366 |     use std;
[INFO] [stdout]     |         ^^^ the item `std` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]  --> src/spec.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std;
[INFO] [stdout]   |     ^^^ the item `std` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]    --> src/util.rs:366:9
[INFO] [stdout]     |
[INFO] [stdout] 366 |     use std;
[INFO] [stdout]     |         ^^^ the item `std` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: named argument `kind` is not used by name
[INFO] [stdout]     --> examples/generate_spidermonkey.rs:1405:17
[INFO] [stdout]      |
[INFO] [stdout] 1401 |     return raiseError(\"FIXME: Not implemented yet ({})\");
[INFO] [stdout]      |                                                     -- this formatting argument uses named argument `kind` by position
[INFO] [stdout] ...
[INFO] [stdout] 1405 |                 kind = kind.to_str(),
[INFO] [stdout]      |                 ^^^^ this named argument is referred to by position in formatting string
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(named_arguments_used_positionally)]` on by default
[INFO] [stdout] help: use the named argument by name to avoid ambiguity
[INFO] [stdout]      |
[INFO] [stdout] 1401 |     return raiseError(\"FIXME: Not implemented yet ({kind})\");
[INFO] [stdout]      |                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ToStr` is imported redundantly
[INFO] [stdout]   --> examples/generate_spidermonkey.rs:20:47
[INFO] [stdout]    |
[INFO] [stdout] 19 | use binjs_meta::spec::*;
[INFO] [stdout]    |     ------------------- the item `ToStr` is already imported here
[INFO] [stdout] 20 | use binjs_meta::util::{Reindentable, ToCases, ToStr};
[INFO] [stdout]    |                                               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]    --> examples/generate_spidermonkey.rs:176:49
[INFO] [stdout]     |
[INFO] [stdout] 176 |                 .unwrap_or_else(|| panic!("Node {} isn't a dictionary"));
[INFO] [stdout]     |                                                 ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]     |
[INFO] [stdout] 176 |                 .unwrap_or_else(|| panic!("Node {} isn't a dictionary", ...));
[INFO] [stdout]     |                                                                       +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 176 |                 .unwrap_or_else(|| panic!("{}", "Node {} isn't a dictionary"));
[INFO] [stdout]     |                                           +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.26s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v5.1.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "dd52ad68e74199536d87aaacf63d0f4663100d60018e09fdf5c9ebebe65227c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd52ad68e74199536d87aaacf63d0f4663100d60018e09fdf5c9ebebe65227c2", kill_on_drop: false }`
[INFO] [stdout] dd52ad68e74199536d87aaacf63d0f4663100d60018e09fdf5c9ebebe65227c2
[INFO] checking binjs_meta-0.5.4 against try#bfe97fcae016881ad333f0ff8cea2cadb9cf136c for pr-121848
[INFO] extracting crate binjs_meta 0.5.4 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate binjs_meta 0.5.4 on toolchain bfe97fcae016881ad333f0ff8cea2cadb9cf136c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate binjs_meta 0.5.4
[INFO] finished tweaking crates.io crate binjs_meta 0.5.4
[INFO] tweaked toml for crates.io crate binjs_meta 0.5.4 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate binjs_meta 0.5.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 85194deebc562af79ec89f63dc5d27941d7a3f6d739f248cbb98215d848f5b98
[INFO] running `Command { std: "docker" "start" "-a" "85194deebc562af79ec89f63dc5d27941d7a3f6d739f248cbb98215d848f5b98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "85194deebc562af79ec89f63dc5d27941d7a3f6d739f248cbb98215d848f5b98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85194deebc562af79ec89f63dc5d27941d7a3f6d739f248cbb98215d848f5b98", kill_on_drop: false }`
[INFO] [stdout] 85194deebc562af79ec89f63dc5d27941d7a3f6d739f248cbb98215d848f5b98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e32db43e6e36ee03d587dfd018d8457bcd0434fe961f77a77e6045886a0a4ac
[INFO] running `Command { std: "docker" "start" "-a" "8e32db43e6e36ee03d587dfd018d8457bcd0434fe961f77a77e6045886a0a4ac", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.36
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]    Compiling regex v1.0.3
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.6.16
[INFO] [stderr]     Checking either v1.4.0
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking ansi_term v0.10.2
[INFO] [stderr]     Checking linked-hash-map v0.5.1
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]     Checking atty v0.2.6
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking Inflector v0.11.4
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking clap v2.30.0
[INFO] [stderr]     Checking yaml-rust v0.4.0
[INFO] [stderr]     Checking weedle v0.11.0
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking binjs_meta v0.5.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]  --> src/spec.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std;
[INFO] [stdout]   |     ^^^ the item `std` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]    --> src/util.rs:366:9
[INFO] [stdout]     |
[INFO] [stdout] 366 |     use std;
[INFO] [stdout]     |         ^^^ the item `std` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]  --> src/spec.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std;
[INFO] [stdout]   |     ^^^ the item `std` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]    --> src/util.rs:366:9
[INFO] [stdout]     |
[INFO] [stdout] 366 |     use std;
[INFO] [stdout]     |         ^^^ the item `std` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: named argument `kind` is not used by name
[INFO] [stdout]     --> examples/generate_spidermonkey.rs:1405:17
[INFO] [stdout]      |
[INFO] [stdout] 1401 |     return raiseError(\"FIXME: Not implemented yet ({})\");
[INFO] [stdout]      |                                                     -- this formatting argument uses named argument `kind` by position
[INFO] [stdout] ...
[INFO] [stdout] 1405 |                 kind = kind.to_str(),
[INFO] [stdout]      |                 ^^^^ this named argument is referred to by position in formatting string
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(named_arguments_used_positionally)]` on by default
[INFO] [stdout] help: use the named argument by name to avoid ambiguity
[INFO] [stdout]      |
[INFO] [stdout] 1401 |     return raiseError(\"FIXME: Not implemented yet ({kind})\");
[INFO] [stdout]      |                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ToStr` is imported redundantly
[INFO] [stdout]   --> examples/generate_spidermonkey.rs:20:47
[INFO] [stdout]    |
[INFO] [stdout] 19 | use binjs_meta::spec::*;
[INFO] [stdout]    |     ------------------- the item `ToStr` is already imported here
[INFO] [stdout] 20 | use binjs_meta::util::{Reindentable, ToCases, ToStr};
[INFO] [stdout]    |                                               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]    --> examples/generate_spidermonkey.rs:176:49
[INFO] [stdout]     |
[INFO] [stdout] 176 |                 .unwrap_or_else(|| panic!("Node {} isn't a dictionary"));
[INFO] [stdout]     |                                                 ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]     |
[INFO] [stdout] 176 |                 .unwrap_or_else(|| panic!("Node {} isn't a dictionary", ...));
[INFO] [stdout]     |                                                                       +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 176 |                 .unwrap_or_else(|| panic!("{}", "Node {} isn't a dictionary"));
[INFO] [stdout]     |                                           +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.20s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v5.1.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "8e32db43e6e36ee03d587dfd018d8457bcd0434fe961f77a77e6045886a0a4ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e32db43e6e36ee03d587dfd018d8457bcd0434fe961f77a77e6045886a0a4ac", kill_on_drop: false }`
[INFO] [stdout] 8e32db43e6e36ee03d587dfd018d8457bcd0434fe961f77a77e6045886a0a4ac
