[INFO] cloning repository https://github.com/xokz/rustcalc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xokz/rustcalc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxokz%2Frustcalc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxokz%2Frustcalc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a71030912cecede62e9bd3faaaa92f9d93e7b54e
[INFO] building xokz/rustcalc 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%2Fxokz%2Frustcalc" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xokz/rustcalc 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/xokz/rustcalc
[INFO] finished tweaking git repo https://github.com/xokz/rustcalc
[INFO] tweaked toml for git repo https://github.com/xokz/rustcalc written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/xokz/rustcalc 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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] ff0d54975c8144925776e2df52bf1928d89c6d8463885ab9c65bb63d3258fa64
[INFO] running `Command { std: "docker" "start" "-a" "ff0d54975c8144925776e2df52bf1928d89c6d8463885ab9c65bb63d3258fa64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff0d54975c8144925776e2df52bf1928d89c6d8463885ab9c65bb63d3258fa64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff0d54975c8144925776e2df52bf1928d89c6d8463885ab9c65bb63d3258fa64", kill_on_drop: false }`
[INFO] [stdout] ff0d54975c8144925776e2df52bf1928d89c6d8463885ab9c65bb63d3258fa64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 06927fcd1c89a6ed562e4fd1add5ce61d029fc425d8c23885791f71b220de11b
[INFO] running `Command { std: "docker" "start" "-a" "06927fcd1c89a6ed562e4fd1add5ce61d029fc425d8c23885791f71b220de11b", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustcalc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/mathengine/solve.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::mathengine::token::{self, Token::{self, *}};
[INFO] [stdout]   |                                ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_token_list` is never used
[INFO] [stdout]   --> src/mathengine/token.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn print_token_list(tokens: &[Token]) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "06927fcd1c89a6ed562e4fd1add5ce61d029fc425d8c23885791f71b220de11b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06927fcd1c89a6ed562e4fd1add5ce61d029fc425d8c23885791f71b220de11b", kill_on_drop: false }`
[INFO] [stdout] 06927fcd1c89a6ed562e4fd1add5ce61d029fc425d8c23885791f71b220de11b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] ebd5d6abaf884b59908cd33cab0fe523afaa174f9c199686efffbfacb940154c
[INFO] running `Command { std: "docker" "start" "-a" "ebd5d6abaf884b59908cd33cab0fe523afaa174f9c199686efffbfacb940154c", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustcalc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/mathengine/solve.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::mathengine::token::{self, Token::{self, *}};
[INFO] [stdout]   |                                ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_token_list` is never used
[INFO] [stdout]   --> src/mathengine/token.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn print_token_list(tokens: &[Token]) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "ebd5d6abaf884b59908cd33cab0fe523afaa174f9c199686efffbfacb940154c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebd5d6abaf884b59908cd33cab0fe523afaa174f9c199686efffbfacb940154c", kill_on_drop: false }`
[INFO] [stdout] ebd5d6abaf884b59908cd33cab0fe523afaa174f9c199686efffbfacb940154c