[INFO] cloning repository https://github.com/glazari/mylang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/glazari/mylang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fglazari%2Fmylang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fglazari%2Fmylang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c64bd07597ef2ef79d4c75a5969574f786c10421
[INFO] building glazari/mylang against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fglazari%2Fmylang" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/glazari/mylang on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/glazari/mylang
[INFO] finished tweaking git repo https://github.com/glazari/mylang
[INFO] tweaked toml for git repo https://github.com/glazari/mylang written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/glazari/mylang 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d1d82d2c50e0e1bad5ce575b2e9c38d4d578f37d9e19c9717afe5499ac5a3e61
[INFO] running `Command { std: "docker" "start" "-a" "d1d82d2c50e0e1bad5ce575b2e9c38d4d578f37d9e19c9717afe5499ac5a3e61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1d82d2c50e0e1bad5ce575b2e9c38d4d578f37d9e19c9717afe5499ac5a3e61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1d82d2c50e0e1bad5ce575b2e9c38d4d578f37d9e19c9717afe5499ac5a3e61", kill_on_drop: false }`
[INFO] [stdout] d1d82d2c50e0e1bad5ce575b2e9c38d4d578f37d9e19c9717afe5499ac5a3e61
[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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 791f57c1fc765f4687fa35aff984980ce88489ece1c655531272c6b29e2dfa0e
[INFO] running `Command { std: "docker" "start" "-a" "791f57c1fc765f4687fa35aff984980ce88489ece1c655531272c6b29e2dfa0e", kill_on_drop: false }`
[INFO] [stderr]    Compiling mylang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `fi` is never used
[INFO] [stdout]    --> src/ast.rs:154:12
[INFO] [stdout]     |
[INFO] [stdout] 153 | impl Statement {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] 154 |     pub fn fi(&self) -> FI {
[INFO] [stdout]     |            ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Prefix` is never constructed
[INFO] [stdout]    --> src/parser.rs:460:5
[INFO] [stdout]     |
[INFO] [stdout] 455 | enum Precedence {
[INFO] [stdout]     |      ---------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 460 |     Prefix,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Precedence` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "791f57c1fc765f4687fa35aff984980ce88489ece1c655531272c6b29e2dfa0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "791f57c1fc765f4687fa35aff984980ce88489ece1c655531272c6b29e2dfa0e", kill_on_drop: false }`
[INFO] [stdout] 791f57c1fc765f4687fa35aff984980ce88489ece1c655531272c6b29e2dfa0e
[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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d2e25ff5277293344dc8515eea5cc3a5a9bbae529192322f55614b3a49934b4
[INFO] running `Command { std: "docker" "start" "-a" "7d2e25ff5277293344dc8515eea5cc3a5a9bbae529192322f55614b3a49934b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]    Compiling yansi v0.5.1
[INFO] [stderr]    Compiling pretty_assertions v1.4.0
[INFO] [stderr]    Compiling mylang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `fi` is never used
[INFO] [stdout]    --> src/ast.rs:154:12
[INFO] [stdout]     |
[INFO] [stdout] 153 | impl Statement {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] 154 |     pub fn fi(&self) -> FI {
[INFO] [stdout]     |            ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Prefix` is never constructed
[INFO] [stdout]    --> src/parser.rs:460:5
[INFO] [stdout]     |
[INFO] [stdout] 455 | enum Precedence {
[INFO] [stdout]     |      ---------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 460 |     Prefix,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Precedence` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `Command { std: "docker" "inspect" "7d2e25ff5277293344dc8515eea5cc3a5a9bbae529192322f55614b3a49934b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d2e25ff5277293344dc8515eea5cc3a5a9bbae529192322f55614b3a49934b4", kill_on_drop: false }`
[INFO] [stdout] 7d2e25ff5277293344dc8515eea5cc3a5a9bbae529192322f55614b3a49934b4