[INFO] cloning repository https://github.com/nptnl/basemath
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nptnl/basemath" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnptnl%2Fbasemath", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnptnl%2Fbasemath'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7a90410d90a86c873abfc8c5dbaefcaa0a9a40f9
[INFO] checking nptnl/basemath against try#b2fb67b8b6007ced9ad3f3b752a6fec899e7859c for pr-138915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnptnl%2Fbasemath" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nptnl/basemath on toolchain b2fb67b8b6007ced9ad3f3b752a6fec899e7859c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b2fb67b8b6007ced9ad3f3b752a6fec899e7859c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nptnl/basemath
[INFO] finished tweaking git repo https://github.com/nptnl/basemath
[INFO] tweaked toml for git repo https://github.com/nptnl/basemath written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/nptnl/basemath 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" "+b2fb67b8b6007ced9ad3f3b752a6fec899e7859c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+b2fb67b8b6007ced9ad3f3b752a6fec899e7859c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d19121d3ed6cdcc4def2d8944d95457582169c49112bb5eb44b29af20db22a01
[INFO] running `Command { std: "docker" "start" "-a" "d19121d3ed6cdcc4def2d8944d95457582169c49112bb5eb44b29af20db22a01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d19121d3ed6cdcc4def2d8944d95457582169c49112bb5eb44b29af20db22a01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d19121d3ed6cdcc4def2d8944d95457582169c49112bb5eb44b29af20db22a01", kill_on_drop: false }`
[INFO] [stdout] d19121d3ed6cdcc4def2d8944d95457582169c49112bb5eb44b29af20db22a01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+b2fb67b8b6007ced9ad3f3b752a6fec899e7859c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4cf58c5263bf63b609919e5f397e94bb443f953efe16c3536e799a4212e2cae5
[INFO] running `Command { std: "docker" "start" "-a" "4cf58c5263bf63b609919e5f397e94bb443f953efe16c3536e799a4212e2cae5", kill_on_drop: false }`
[INFO] [stderr]     Checking basemath v3.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::rules::*`
[INFO] [stdout]  --> src/lin.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::rules::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::rules::*`
[INFO] [stdout]  --> src/lin.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::rules::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "4cf58c5263bf63b609919e5f397e94bb443f953efe16c3536e799a4212e2cae5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cf58c5263bf63b609919e5f397e94bb443f953efe16c3536e799a4212e2cae5", kill_on_drop: false }`
[INFO] [stdout] 4cf58c5263bf63b609919e5f397e94bb443f953efe16c3536e799a4212e2cae5