[INFO] cloning repository https://github.com/aaronhipple/magic-squares [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aaronhipple/magic-squares" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faaronhipple%2Fmagic-squares", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faaronhipple%2Fmagic-squares'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0155b84593dd36686aca9dbcbf51c080b6d91eca [INFO] checking aaronhipple/magic-squares against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faaronhipple%2Fmagic-squares" "/workspace/builds/worker-11/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/aaronhipple/magic-squares on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/aaronhipple/magic-squares [INFO] finished tweaking git repo https://github.com/aaronhipple/magic-squares [INFO] tweaked toml for git repo https://github.com/aaronhipple/magic-squares written to /workspace/builds/worker-11/source/Cargo.toml [INFO] crate git repo https://github.com/aaronhipple/magic-squares already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 8da1b44525eb9cc0b6070d963f0b54cc5da416e63779fc921af54c39d127bd17 [INFO] running `Command { std: "docker" "start" "-a" "8da1b44525eb9cc0b6070d963f0b54cc5da416e63779fc921af54c39d127bd17", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8da1b44525eb9cc0b6070d963f0b54cc5da416e63779fc921af54c39d127bd17", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8da1b44525eb9cc0b6070d963f0b54cc5da416e63779fc921af54c39d127bd17", kill_on_drop: false }` [INFO] [stdout] 8da1b44525eb9cc0b6070d963f0b54cc5da416e63779fc921af54c39d127bd17 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 38821a968b9b40f93ee187f7488b2b11c29b753a180b1abf8705003d604538e9 [INFO] running `Command { std: "docker" "start" "-a" "38821a968b9b40f93ee187f7488b2b11c29b753a180b1abf8705003d604538e9", kill_on_drop: false }` [INFO] [stderr] Checking magic_squares v0.0.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `sum` is never read [INFO] [stdout] --> src/main.rs:14:13 [INFO] [stdout] | [INFO] [stdout] 14 | let mut sum = 0; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `sum` is never read [INFO] [stdout] --> src/main.rs:14:13 [INFO] [stdout] | [INFO] [stdout] 14 | let mut sum = 0; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.76s [INFO] running `Command { std: "docker" "inspect" "38821a968b9b40f93ee187f7488b2b11c29b753a180b1abf8705003d604538e9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "38821a968b9b40f93ee187f7488b2b11c29b753a180b1abf8705003d604538e9", kill_on_drop: false }` [INFO] [stdout] 38821a968b9b40f93ee187f7488b2b11c29b753a180b1abf8705003d604538e9