[INFO] fetching crate pseudocode 0.1.7...
[INFO] checking pseudocode-0.1.7 against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] extracting crate pseudocode 0.1.7 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate pseudocode 0.1.7 on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pseudocode 0.1.7
[INFO] finished tweaking crates.io crate pseudocode 0.1.7
[INFO] tweaked toml for crates.io crate pseudocode 0.1.7 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate pseudocode 0.1.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 64d7dc572e2a1c1081981ad27b12d83bf105b63bea4f8f815e0492402228dacb
[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" "64d7dc572e2a1c1081981ad27b12d83bf105b63bea4f8f815e0492402228dacb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64d7dc572e2a1c1081981ad27b12d83bf105b63bea4f8f815e0492402228dacb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64d7dc572e2a1c1081981ad27b12d83bf105b63bea4f8f815e0492402228dacb", kill_on_drop: false }`
[INFO] [stdout] 64d7dc572e2a1c1081981ad27b12d83bf105b63bea4f8f815e0492402228dacb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 947a956c9e96e47ebd674ccf2d2c254bf6864c558b302a2f46f8bea3b8acd6a3
[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" "947a956c9e96e47ebd674ccf2d2c254bf6864c558b302a2f46f8bea3b8acd6a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking pseudocode v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `dump`
[INFO] [stdout]    --> src/lib.rs:317:8
[INFO] [stdout]     |
[INFO] [stdout] 317 |     fn dump(&self) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dump`
[INFO] [stdout]    --> src/lib.rs:317:8
[INFO] [stdout]     |
[INFO] [stdout] 317 |     fn dump(&self) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:958:9
[INFO] [stdout]     |
[INFO] [stdout] 958 | /         parses_to! {
[INFO] [stdout] 959 | |             parser: PseudocodeParser,
[INFO] [stdout] 960 | |             input: "my_variable",
[INFO] [stdout] 961 | |             rule: Rule::identifier,
[INFO] [stdout] 962 | |             tokens: [identifier(0, 11)]
[INFO] [stdout] 963 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:958:9
[INFO] [stdout]     |
[INFO] [stdout] 958 | /         parses_to! {
[INFO] [stdout] 959 | |             parser: PseudocodeParser,
[INFO] [stdout] 960 | |             input: "my_variable",
[INFO] [stdout] 961 | |             rule: Rule::identifier,
[INFO] [stdout] 962 | |             tokens: [identifier(0, 11)]
[INFO] [stdout] 963 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:965:9
[INFO] [stdout]     |
[INFO] [stdout] 965 | /         parses_to! {
[INFO] [stdout] 966 | |             parser: PseudocodeParser,
[INFO] [stdout] 967 | |             input: "\"hello world\"",
[INFO] [stdout] 968 | |             rule: Rule::string,
[INFO] [stdout] 969 | |             tokens: [string(0, 13, [inner(1, 12)])]
[INFO] [stdout] 970 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:965:9
[INFO] [stdout]     |
[INFO] [stdout] 965 | /         parses_to! {
[INFO] [stdout] 966 | |             parser: PseudocodeParser,
[INFO] [stdout] 967 | |             input: "\"hello world\"",
[INFO] [stdout] 968 | |             rule: Rule::string,
[INFO] [stdout] 969 | |             tokens: [string(0, 13, [inner(1, 12)])]
[INFO] [stdout] 970 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.58s
[INFO] running `Command { std: "docker" "inspect" "947a956c9e96e47ebd674ccf2d2c254bf6864c558b302a2f46f8bea3b8acd6a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "947a956c9e96e47ebd674ccf2d2c254bf6864c558b302a2f46f8bea3b8acd6a3", kill_on_drop: false }`
[INFO] [stdout] 947a956c9e96e47ebd674ccf2d2c254bf6864c558b302a2f46f8bea3b8acd6a3