[INFO] updating cached repository https://github.com/dcoxall/maze
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7938ae86ac3e6239f3dc42b1a88e704f9ffc24c7
[INFO] testing dcoxall/maze against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdcoxall%2Fmaze" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dcoxall/maze on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/dcoxall/maze
[INFO] finished tweaking git repo https://github.com/dcoxall/maze
[INFO] tweaked toml for git repo https://github.com/dcoxall/maze written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/dcoxall/maze already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5c530525e81013455f0d74c0a0427914f43ba7bb7e706a4cc468fa104e85ca5a
[INFO] running `"docker" "start" "-a" "5c530525e81013455f0d74c0a0427914f43ba7bb7e706a4cc468fa104e85ca5a"`
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling color_quant v1.0.1
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling gif v0.10.2
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling maze v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:37:19
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let maze: Box<Iterator<Item=Grid>> = match m.value_of("algorithm") {
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Grid>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.74s
[INFO] running `"docker" "inspect" "5c530525e81013455f0d74c0a0427914f43ba7bb7e706a4cc468fa104e85ca5a"`
[INFO] running `"docker" "rm" "-f" "5c530525e81013455f0d74c0a0427914f43ba7bb7e706a4cc468fa104e85ca5a"`
[INFO] [stdout] 5c530525e81013455f0d74c0a0427914f43ba7bb7e706a4cc468fa104e85ca5a
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] eb9b351a67b0efbc13de426109401e388994738b8710f338e57c2815066da8c2
[INFO] running `"docker" "start" "-a" "eb9b351a67b0efbc13de426109401e388994738b8710f338e57c2815066da8c2"`
[INFO] [stderr]    Compiling maze v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:37:19
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let maze: Box<Iterator<Item=Grid>> = match m.value_of("algorithm") {
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Grid>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `"docker" "inspect" "eb9b351a67b0efbc13de426109401e388994738b8710f338e57c2815066da8c2"`
[INFO] running `"docker" "rm" "-f" "eb9b351a67b0efbc13de426109401e388994738b8710f338e57c2815066da8c2"`
[INFO] [stdout] eb9b351a67b0efbc13de426109401e388994738b8710f338e57c2815066da8c2
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e952c06c83bc6eb23581cbaa425aaae9ed6f2bf689049fcbedbe2c647573ac4d
[INFO] running `"docker" "start" "-a" "e952c06c83bc6eb23581cbaa425aaae9ed6f2bf689049fcbedbe2c647573ac4d"`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:37:19
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let maze: Box<Iterator<Item=Grid>> = match m.value_of("algorithm") {
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Grid>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.28s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/maze-24870078f9dda70e
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "e952c06c83bc6eb23581cbaa425aaae9ed6f2bf689049fcbedbe2c647573ac4d"`
[INFO] running `"docker" "rm" "-f" "e952c06c83bc6eb23581cbaa425aaae9ed6f2bf689049fcbedbe2c647573ac4d"`
[INFO] [stdout] e952c06c83bc6eb23581cbaa425aaae9ed6f2bf689049fcbedbe2c647573ac4d