[INFO] cloning repository https://github.com/BlakeEric/a-text-editor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BlakeEric/a-text-editor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlakeEric%2Fa-text-editor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlakeEric%2Fa-text-editor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eaaabdf2c8b6830b12a9e9aeac8762de1b4b7796
[INFO] building BlakeEric/a-text-editor 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%2FBlakeEric%2Fa-text-editor" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BlakeEric/a-text-editor 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/BlakeEric/a-text-editor
[INFO] finished tweaking git repo https://github.com/BlakeEric/a-text-editor
[INFO] tweaked toml for git repo https://github.com/BlakeEric/a-text-editor written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/BlakeEric/a-text-editor 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded termion v3.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] cf74071ac62ce8f5609c254027853a652ec27a897a1884fa9f3d6f67eaf9daa5
[INFO] running `Command { std: "docker" "start" "-a" "cf74071ac62ce8f5609c254027853a652ec27a897a1884fa9f3d6f67eaf9daa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf74071ac62ce8f5609c254027853a652ec27a897a1884fa9f3d6f67eaf9daa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf74071ac62ce8f5609c254027853a652ec27a897a1884fa9f3d6f67eaf9daa5", kill_on_drop: false }`
[INFO] [stdout] cf74071ac62ce8f5609c254027853a652ec27a897a1884fa9f3d6f67eaf9daa5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 489a3d17f61898fed7abe7ce24fd5e7043deeb04a22bccdd3ce9cb10fec85c3f
[INFO] running `Command { std: "docker" "start" "-a" "489a3d17f61898fed7abe7ce24fd5e7043deeb04a22bccdd3ce9cb10fec85c3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]    Compiling bitflags v2.5.0
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling termion v3.0.0
[INFO] [stderr]    Compiling parking_lot v0.12.2
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]    Compiling signal-hook-mio v0.2.3
[INFO] [stderr]    Compiling crossterm v0.27.0
[INFO] [stderr]    Compiling a-text-editor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/editor.rs:213:13
[INFO] [stdout]     |
[INFO] [stdout] 213 |         let mut offset = &mut self.offset;
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.26s
[INFO] running `Command { std: "docker" "inspect" "489a3d17f61898fed7abe7ce24fd5e7043deeb04a22bccdd3ce9cb10fec85c3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "489a3d17f61898fed7abe7ce24fd5e7043deeb04a22bccdd3ce9cb10fec85c3f", kill_on_drop: false }`
[INFO] [stdout] 489a3d17f61898fed7abe7ce24fd5e7043deeb04a22bccdd3ce9cb10fec85c3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 390772e8b8823f61a75099cc0dfa10c8a1ab2f7078077c10a50344fbfaface78
[INFO] running `Command { std: "docker" "start" "-a" "390772e8b8823f61a75099cc0dfa10c8a1ab2f7078077c10a50344fbfaface78", kill_on_drop: false }`
[INFO] [stderr]    Compiling a-text-editor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/editor.rs:213:13
[INFO] [stdout]     |
[INFO] [stdout] 213 |         let mut offset = &mut self.offset;
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "390772e8b8823f61a75099cc0dfa10c8a1ab2f7078077c10a50344fbfaface78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "390772e8b8823f61a75099cc0dfa10c8a1ab2f7078077c10a50344fbfaface78", kill_on_drop: false }`
[INFO] [stdout] 390772e8b8823f61a75099cc0dfa10c8a1ab2f7078077c10a50344fbfaface78