[INFO] cloning repository https://github.com/yuk1ty/lsh-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yuk1ty/lsh-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuk1ty%2Flsh-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuk1ty%2Flsh-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aee999e0e28cf0d8655f92006fc66c6b607830ed
[INFO] checking yuk1ty/lsh-rs against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuk1ty%2Flsh-rs" "/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/yuk1ty/lsh-rs on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yuk1ty/lsh-rs
[INFO] finished tweaking git repo https://github.com/yuk1ty/lsh-rs
[INFO] tweaked toml for git repo https://github.com/yuk1ty/lsh-rs written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/yuk1ty/lsh-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bytes v0.4.6
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94b765e500724411f047e7960bcb340b8ad55e17e9fa3484fd4ec5bc6b129ad6
[INFO] running `Command { std: "docker" "start" "-a" "94b765e500724411f047e7960bcb340b8ad55e17e9fa3484fd4ec5bc6b129ad6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94b765e500724411f047e7960bcb340b8ad55e17e9fa3484fd4ec5bc6b129ad6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94b765e500724411f047e7960bcb340b8ad55e17e9fa3484fd4ec5bc6b129ad6", kill_on_drop: false }`
[INFO] [stdout] 94b765e500724411f047e7960bcb340b8ad55e17e9fa3484fd4ec5bc6b129ad6
[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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78e4bfc5776f4cc3dabed8f537fe3baa421b7ecca11d8d4ed7381ed43c02ec9c
[INFO] running `Command { std: "docker" "start" "-a" "78e4bfc5776f4cc3dabed8f537fe3baa421b7ecca11d8d4ed7381ed43c02ec9c", kill_on_drop: false }`
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking byteorder v1.2.2
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]     Checking bytes v0.4.6
[INFO] [stderr]     Checking lsh_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function `values` is never used
[INFO] [stdout]   --> src/lsh/mod.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | impl Commands {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 47 |     fn values() -> Vec<String> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `values` is never used
[INFO] [stdout]   --> src/lsh/mod.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | impl Commands {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 47 |     fn values() -> Vec<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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.38s
[INFO] running `Command { std: "docker" "inspect" "78e4bfc5776f4cc3dabed8f537fe3baa421b7ecca11d8d4ed7381ed43c02ec9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78e4bfc5776f4cc3dabed8f537fe3baa421b7ecca11d8d4ed7381ed43c02ec9c", kill_on_drop: false }`
[INFO] [stdout] 78e4bfc5776f4cc3dabed8f537fe3baa421b7ecca11d8d4ed7381ed43c02ec9c
[INFO] checking yuk1ty/lsh-rs against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuk1ty%2Flsh-rs" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yuk1ty/lsh-rs on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yuk1ty/lsh-rs
[INFO] finished tweaking git repo https://github.com/yuk1ty/lsh-rs
[INFO] tweaked toml for git repo https://github.com/yuk1ty/lsh-rs written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/yuk1ty/lsh-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3dd905034423b2fb50f21f0f26b8acd8fe0119ab0dfcdab99ebfaaa9ca6ae997
[INFO] running `Command { std: "docker" "start" "-a" "3dd905034423b2fb50f21f0f26b8acd8fe0119ab0dfcdab99ebfaaa9ca6ae997", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3dd905034423b2fb50f21f0f26b8acd8fe0119ab0dfcdab99ebfaaa9ca6ae997", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3dd905034423b2fb50f21f0f26b8acd8fe0119ab0dfcdab99ebfaaa9ca6ae997", kill_on_drop: false }`
[INFO] [stdout] 3dd905034423b2fb50f21f0f26b8acd8fe0119ab0dfcdab99ebfaaa9ca6ae997
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce8d2fb7d03d205e2a6525a591d9934d1345edea8ceefb3f973662fe35da0c17
[INFO] running `Command { std: "docker" "start" "-a" "ce8d2fb7d03d205e2a6525a591d9934d1345edea8ceefb3f973662fe35da0c17", kill_on_drop: false }`
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking byteorder v1.2.2
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]     Checking bytes v0.4.6
[INFO] [stderr]     Checking lsh_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function `values` is never used
[INFO] [stdout]   --> src/lsh/mod.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | impl Commands {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 47 |     fn values() -> Vec<String> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `values` is never used
[INFO] [stdout]   --> src/lsh/mod.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | impl Commands {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 47 |     fn values() -> Vec<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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.79s
[INFO] running `Command { std: "docker" "inspect" "ce8d2fb7d03d205e2a6525a591d9934d1345edea8ceefb3f973662fe35da0c17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce8d2fb7d03d205e2a6525a591d9934d1345edea8ceefb3f973662fe35da0c17", kill_on_drop: false }`
[INFO] [stdout] ce8d2fb7d03d205e2a6525a591d9934d1345edea8ceefb3f973662fe35da0c17