[INFO] cloning repository https://github.com/Skadic/lmsg-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Skadic/lmsg-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSkadic%2Flmsg-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSkadic%2Flmsg-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6fa1ea842a5f6abcb7f2010d9f375520e881b516
[INFO] building Skadic/lmsg-rs 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%2FSkadic%2Flmsg-rs" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Skadic/lmsg-rs 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/Skadic/lmsg-rs
[INFO] finished tweaking git repo https://github.com/Skadic/lmsg-rs
[INFO] tweaked toml for git repo https://github.com/Skadic/lmsg-rs written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Skadic/lmsg-rs 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]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded succinct v0.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 7ddc0d623f6ccce86ab3880e173480454e97b207455d2caad6c1b728cb0c6880
[INFO] running `Command { std: "docker" "start" "-a" "7ddc0d623f6ccce86ab3880e173480454e97b207455d2caad6c1b728cb0c6880", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ddc0d623f6ccce86ab3880e173480454e97b207455d2caad6c1b728cb0c6880", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ddc0d623f6ccce86ab3880e173480454e97b207455d2caad6c1b728cb0c6880", kill_on_drop: false }`
[INFO] [stdout] 7ddc0d623f6ccce86ab3880e173480454e97b207455d2caad6c1b728cb0c6880
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] a62b242b155e5ed95de299ac18262ad8179f285c88a11e3c2af3021935e296d3
[INFO] running `Command { std: "docker" "start" "-a" "a62b242b155e5ed95de299ac18262ad8179f285c88a11e3c2af3021935e296d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling wyz v0.5.0
[INFO] [stderr]    Compiling funty v2.0.0
[INFO] [stderr]    Compiling bitvec v1.0.0
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling succinct v0.5.2
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling lmsg_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let input = std::fs::read("res/dna.50MB_prefix_1MB").unwrap();
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.72s
[INFO] running `Command { std: "docker" "inspect" "a62b242b155e5ed95de299ac18262ad8179f285c88a11e3c2af3021935e296d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a62b242b155e5ed95de299ac18262ad8179f285c88a11e3c2af3021935e296d3", kill_on_drop: false }`
[INFO] [stdout] a62b242b155e5ed95de299ac18262ad8179f285c88a11e3c2af3021935e296d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] b5593c38f0ed6a62042f8819d3e21f6adc90717e2692a6da66790e0df52c9357
[INFO] running `Command { std: "docker" "start" "-a" "b5593c38f0ed6a62042f8819d3e21f6adc90717e2692a6da66790e0df52c9357", kill_on_drop: false }`
[INFO] [stderr]    Compiling lmsg_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let input = std::fs::read("res/dna.50MB_prefix_1MB").unwrap();
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "b5593c38f0ed6a62042f8819d3e21f6adc90717e2692a6da66790e0df52c9357", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5593c38f0ed6a62042f8819d3e21f6adc90717e2692a6da66790e0df52c9357", kill_on_drop: false }`
[INFO] [stdout] b5593c38f0ed6a62042f8819d3e21f6adc90717e2692a6da66790e0df52c9357