[INFO] cloning repository https://github.com/clavierpaul/qr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/clavierpaul/qr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclavierpaul%2Fqr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclavierpaul%2Fqr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 89ce9ded42f24104868e80ac6a762a8141ea95d5
[INFO] checking clavierpaul/qr against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclavierpaul%2Fqr" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/clavierpaul/qr on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/clavierpaul/qr
[INFO] finished tweaking git repo https://github.com/clavierpaul/qr
[INFO] tweaked toml for git repo https://github.com/clavierpaul/qr written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/clavierpaul/qr already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] abf53f64637e820021500f38a1ec49db7bae85ba4a1b43ef0fa2e6809dbc4ab2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "abf53f64637e820021500f38a1ec49db7bae85ba4a1b43ef0fa2e6809dbc4ab2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abf53f64637e820021500f38a1ec49db7bae85ba4a1b43ef0fa2e6809dbc4ab2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abf53f64637e820021500f38a1ec49db7bae85ba4a1b43ef0fa2e6809dbc4ab2", kill_on_drop: false }`
[INFO] [stdout] abf53f64637e820021500f38a1ec49db7bae85ba4a1b43ef0fa2e6809dbc4ab2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 459fd6529003bb3fce766c1bde1985a4d2d51db742b9de31df241f2bed50e538
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "459fd6529003bb3fce766c1bde1985a4d2d51db742b9de31df241f2bed50e538", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]     Checking either v1.6.0
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking tiff v0.5.0
[INFO] [stderr]     Checking crossbeam-utils v0.7.2
[INFO] [stderr]     Checking png v0.16.7
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rayon-core v1.7.1
[INFO] [stderr]     Checking rayon v1.3.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking image v0.23.8
[INFO] [stderr]     Checking qr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `group_two`
[INFO] [stdout]    --> src/qr.rs:102:53
[INFO] [stdout]     |
[INFO] [stdout] 102 |             let (capacity, ec_per_block, group_one, group_two) = blocks_table[self.version - 1];
[INFO] [stdout]     |                                                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_group_two`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `group_two`
[INFO] [stdout]    --> src/qr.rs:102:53
[INFO] [stdout]     |
[INFO] [stdout] 102 |             let (capacity, ec_per_block, group_one, group_two) = blocks_table[self.version - 1];
[INFO] [stdout]     |                                                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_group_two`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.06s
[INFO] running `Command { std: "docker" "inspect" "459fd6529003bb3fce766c1bde1985a4d2d51db742b9de31df241f2bed50e538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "459fd6529003bb3fce766c1bde1985a4d2d51db742b9de31df241f2bed50e538", kill_on_drop: false }`
[INFO] [stdout] 459fd6529003bb3fce766c1bde1985a4d2d51db742b9de31df241f2bed50e538