[INFO] fetching crate tnt 0.4.0...
[INFO] checking tnt-0.4.0 against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] extracting crate tnt 0.4.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate tnt 0.4.0 on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tnt 0.4.0
[INFO] finished tweaking crates.io crate tnt 0.4.0
[INFO] tweaked toml for crates.io crate tnt 0.4.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate tnt 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] daeee9117be4b08686bb4237388edc08b5d430ed4bde5635c9b98e88da04f8ce
[INFO] running `Command { std: "docker" "start" "-a" "daeee9117be4b08686bb4237388edc08b5d430ed4bde5635c9b98e88da04f8ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "daeee9117be4b08686bb4237388edc08b5d430ed4bde5635c9b98e88da04f8ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "daeee9117be4b08686bb4237388edc08b5d430ed4bde5635c9b98e88da04f8ce", kill_on_drop: false }`
[INFO] [stdout] daeee9117be4b08686bb4237388edc08b5d430ed4bde5635c9b98e88da04f8ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fcc64f9e1172f41568c76ccb01916beba6ee34dd59f49dc3384fa174d5fa0ce5
[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" "fcc64f9e1172f41568c76ccb01916beba6ee34dd59f49dc3384fa174d5fa0ce5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.67
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking fancy-regex v0.5.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking tnt v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Parser`, `error::Error`
[INFO] [stdout]  --> src/parser/parse_formula.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use pest::{Parser, error::Error, iterators::Pairs};
[INFO] [stdout]   |            ^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `english_expr_successor`
[INFO] [stdout]    --> src/translate.rs:117:8
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub fn english_expr_successor(text: String) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `english_expr_successor`
[INFO] [stdout]    --> src/translate.rs:117:8
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub fn english_expr_successor(text: String) -> String {
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.31s
[INFO] running `Command { std: "docker" "inspect" "fcc64f9e1172f41568c76ccb01916beba6ee34dd59f49dc3384fa174d5fa0ce5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcc64f9e1172f41568c76ccb01916beba6ee34dd59f49dc3384fa174d5fa0ce5", kill_on_drop: false }`
[INFO] [stdout] fcc64f9e1172f41568c76ccb01916beba6ee34dd59f49dc3384fa174d5fa0ce5