[INFO] cloning repository https://github.com/brecert/a2048
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/brecert/a2048" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrecert%2Fa2048", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrecert%2Fa2048'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] adadeeaf611f4e713924427b30e8122c94f61f23
[INFO] testing brecert/a2048 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrecert%2Fa2048" "/workspace/builds/worker-34/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-34/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/brecert/a2048 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/brecert/a2048
[INFO] finished tweaking git repo https://github.com/brecert/a2048
[INFO] tweaked toml for git repo https://github.com/brecert/a2048 written to /workspace/builds/worker-34/source/Cargo.toml
[INFO] crate git repo https://github.com/brecert/a2048 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded argh v0.1.6
[INFO] [stderr]   Downloaded argh_shared v0.1.6
[INFO] [stderr]   Downloaded argh_derive v0.1.6
[INFO] [stderr]   Downloaded no-std-compat v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17dd84d421cb887b099607fcff49cd5a125bb9d7d53c110f81a77a2bf2846bf9
[INFO] running `Command { std: "docker" "start" "-a" "17dd84d421cb887b099607fcff49cd5a125bb9d7d53c110f81a77a2bf2846bf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17dd84d421cb887b099607fcff49cd5a125bb9d7d53c110f81a77a2bf2846bf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17dd84d421cb887b099607fcff49cd5a125bb9d7d53c110f81a77a2bf2846bf9", kill_on_drop: false }`
[INFO] [stdout] 17dd84d421cb887b099607fcff49cd5a125bb9d7d53c110f81a77a2bf2846bf9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2cff85d9ae0c18b31d000b18c30a1c61cc43e2b460454961565ec02c232f2e16
[INFO] running `Command { std: "docker" "start" "-a" "2cff85d9ae0c18b31d000b18c30a1c61cc43e2b460454961565ec02c232f2e16", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling argh_shared v0.1.6
[INFO] [stderr]    Compiling no-std-compat v0.4.1
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]    Compiling grid v0.5.1-alpha.0 (https://github.com/brecert/grid#4b840059)
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling termion v1.5.6
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling argh_derive v0.1.6
[INFO] [stderr]    Compiling argh v0.1.6
[INFO] [stderr]    Compiling a2048 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.94s
[INFO] running `Command { std: "docker" "inspect" "2cff85d9ae0c18b31d000b18c30a1c61cc43e2b460454961565ec02c232f2e16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cff85d9ae0c18b31d000b18c30a1c61cc43e2b460454961565ec02c232f2e16", kill_on_drop: false }`
[INFO] [stdout] 2cff85d9ae0c18b31d000b18c30a1c61cc43e2b460454961565ec02c232f2e16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e70ee75d8a87bea25bd2c8ce37585e790d63fb90e9701026b40d31b82ce448f
[INFO] running `Command { std: "docker" "start" "-a" "8e70ee75d8a87bea25bd2c8ce37585e790d63fb90e9701026b40d31b82ce448f", kill_on_drop: false }`
[INFO] [stderr]    Compiling a2048 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "8e70ee75d8a87bea25bd2c8ce37585e790d63fb90e9701026b40d31b82ce448f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e70ee75d8a87bea25bd2c8ce37585e790d63fb90e9701026b40d31b82ce448f", kill_on_drop: false }`
[INFO] [stdout] 8e70ee75d8a87bea25bd2c8ce37585e790d63fb90e9701026b40d31b82ce448f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c1bbef382289d161d4780361c00c1f4ab17c940c686bdd25a5ce339442daf6a1
[INFO] running `Command { std: "docker" "start" "-a" "c1bbef382289d161d4780361c00c1f4ab17c940c686bdd25a5ce339442daf6a1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.86s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/a2048-067da19ffb9f51dc)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/a2048-548015fe9e774889)
[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; finished in 0.00s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests a2048
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - sort_zeros (line 13) ... ok
[INFO] [stdout] test src/lib.rs - merge_2048 (line 45) ... ok
[INFO] [stdout] test src/lib.rs - sort_zeros (line 20) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.79s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c1bbef382289d161d4780361c00c1f4ab17c940c686bdd25a5ce339442daf6a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1bbef382289d161d4780361c00c1f4ab17c940c686bdd25a5ce339442daf6a1", kill_on_drop: false }`
[INFO] [stdout] c1bbef382289d161d4780361c00c1f4ab17c940c686bdd25a5ce339442daf6a1