[INFO] cloning repository https://github.com/caameron/Pixel-Converter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/caameron/Pixel-Converter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcaameron%2FPixel-Converter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcaameron%2FPixel-Converter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] daf0bb1ccb4fb8e861915cc7c734ff1521190310
[INFO] testing caameron/Pixel-Converter against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcaameron%2FPixel-Converter" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/caameron/Pixel-Converter on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/caameron/Pixel-Converter
[INFO] finished tweaking git repo https://github.com/caameron/Pixel-Converter
[INFO] tweaked toml for git repo https://github.com/caameron/Pixel-Converter written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/caameron/Pixel-Converter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v0.14.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68cf1ccb0367d65256e40dc02cd44d1e69abc2bcca5ac403275a556ef7cdc13f
[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" "68cf1ccb0367d65256e40dc02cd44d1e69abc2bcca5ac403275a556ef7cdc13f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68cf1ccb0367d65256e40dc02cd44d1e69abc2bcca5ac403275a556ef7cdc13f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68cf1ccb0367d65256e40dc02cd44d1e69abc2bcca5ac403275a556ef7cdc13f", kill_on_drop: false }`
[INFO] [stdout] 68cf1ccb0367d65256e40dc02cd44d1e69abc2bcca5ac403275a556ef7cdc13f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--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] a810b5bcccfeea501cea92eb645a0f92ee8d06545482610b8508dd9410142ba4
[INFO] running `Command { std: "docker" "start" "-a" "a810b5bcccfeea501cea92eb645a0f92ee8d06545482610b8508dd9410142ba4", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.4
[INFO] [stderr]    Compiling nodrop v0.1.12
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling libc v0.2.42
[INFO] [stderr]    Compiling byteorder v1.2.3
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling bitflags v1.0.3
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling proc-macro2 v0.4.9
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling inflate v0.4.3
[INFO] [stderr]    Compiling rayon v1.0.2
[INFO] [stderr]    Compiling gif v0.10.0
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling deflate v0.7.18
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling quote v0.6.4
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling rand v0.5.4
[INFO] [stderr]    Compiling syn v0.14.5
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling png v0.12.0
[INFO] [stderr]    Compiling num-derive v0.2.2
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling image v0.19.0
[INFO] [stderr]    Compiling pixel-converter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.23s
[INFO] running `Command { std: "docker" "inspect" "a810b5bcccfeea501cea92eb645a0f92ee8d06545482610b8508dd9410142ba4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a810b5bcccfeea501cea92eb645a0f92ee8d06545482610b8508dd9410142ba4", kill_on_drop: false }`
[INFO] [stdout] a810b5bcccfeea501cea92eb645a0f92ee8d06545482610b8508dd9410142ba4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc014cfe717951168f469ac843bf26f70f81d1f8e1fbf581ad8684cade13a7d6
[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" "dc014cfe717951168f469ac843bf26f70f81d1f8e1fbf581ad8684cade13a7d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling pixel-converter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `Command { std: "docker" "inspect" "dc014cfe717951168f469ac843bf26f70f81d1f8e1fbf581ad8684cade13a7d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc014cfe717951168f469ac843bf26f70f81d1f8e1fbf581ad8684cade13a7d6", kill_on_drop: false }`
[INFO] [stdout] dc014cfe717951168f469ac843bf26f70f81d1f8e1fbf581ad8684cade13a7d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", 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] 9732a9fff1d418daad8a1ada6fea5d7ef2e2ae8d0830f86df5881b5bbf21e968
[INFO] running `Command { std: "docker" "start" "-a" "9732a9fff1d418daad8a1ada6fea5d7ef2e2ae8d0830f86df5881b5bbf21e968", 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]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/pixel_converter-e94df1f56bb48c24)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stderr] error: test failed, to rerun pass '--bin pixel-converter'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/pixel_converter-e94df1f56bb48c24` (signal: 11, SIGSEGV: invalid memory reference)
[INFO] running `Command { std: "docker" "inspect" "9732a9fff1d418daad8a1ada6fea5d7ef2e2ae8d0830f86df5881b5bbf21e968", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9732a9fff1d418daad8a1ada6fea5d7ef2e2ae8d0830f86df5881b5bbf21e968", kill_on_drop: false }`
[INFO] [stdout] 9732a9fff1d418daad8a1ada6fea5d7ef2e2ae8d0830f86df5881b5bbf21e968