[INFO] cloning repository https://github.com/GrayStrider/rust-minigrep
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GrayStrider/rust-minigrep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGrayStrider%2Frust-minigrep", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGrayStrider%2Frust-minigrep'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f24d519340290e6883024ed9d45914b2b629a3b8
[INFO] testing GrayStrider/rust-minigrep against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGrayStrider%2Frust-minigrep" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/GrayStrider/rust-minigrep on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/GrayStrider/rust-minigrep
[INFO] finished tweaking git repo https://github.com/GrayStrider/rust-minigrep
[INFO] tweaked toml for git repo https://github.com/GrayStrider/rust-minigrep written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/GrayStrider/rust-minigrep already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded assert_cmd v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 945aa2640bb88dbc85ddc8059a0168edaa6ba2c27505394f66a4b6879cb613ba
[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" "945aa2640bb88dbc85ddc8059a0168edaa6ba2c27505394f66a4b6879cb613ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "945aa2640bb88dbc85ddc8059a0168edaa6ba2c27505394f66a4b6879cb613ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "945aa2640bb88dbc85ddc8059a0168edaa6ba2c27505394f66a4b6879cb613ba", kill_on_drop: false }`
[INFO] [stdout] 945aa2640bb88dbc85ddc8059a0168edaa6ba2c27505394f66a4b6879cb613ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1f3d50bbc8632ee210121e4c18e82d30253337ef0a25fd0574420efbf968d5f
[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" "b1f3d50bbc8632ee210121e4c18e82d30253337ef0a25fd0574420efbf968d5f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling predicates-core v1.0.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling difference v2.0.0
[INFO] [stderr]    Compiling treeline v0.1.0
[INFO] [stderr]    Compiling predicates-tree v1.0.0
[INFO] [stderr]    Compiling predicates v1.0.5
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling assert_cmd v1.0.1
[INFO] [stderr]    Compiling minigrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.36s
[INFO] running `Command { std: "docker" "inspect" "b1f3d50bbc8632ee210121e4c18e82d30253337ef0a25fd0574420efbf968d5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1f3d50bbc8632ee210121e4c18e82d30253337ef0a25fd0574420efbf968d5f", kill_on_drop: false }`
[INFO] [stdout] b1f3d50bbc8632ee210121e4c18e82d30253337ef0a25fd0574420efbf968d5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ae2dd83be4d187d5612d6472aae96ebcc876b2885c65bf19f4d05fdd187f140
[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" "3ae2dd83be4d187d5612d6472aae96ebcc876b2885c65bf19f4d05fdd187f140", kill_on_drop: false }`
[INFO] [stderr]    Compiling minigrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.86s
[INFO] running `Command { std: "docker" "inspect" "3ae2dd83be4d187d5612d6472aae96ebcc876b2885c65bf19f4d05fdd187f140", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ae2dd83be4d187d5612d6472aae96ebcc876b2885c65bf19f4d05fdd187f140", kill_on_drop: false }`
[INFO] [stdout] 3ae2dd83be4d187d5612d6472aae96ebcc876b2885c65bf19f4d05fdd187f140
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] ffaa64ef996415f0258cb0829c44ce32c955a67276c767d84c7bc73c6cbc01cd
[INFO] running `Command { std: "docker" "start" "-a" "ffaa64ef996415f0258cb0829c44ce32c955a67276c767d84c7bc73c6cbc01cd", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/minigrep-fc38eed7181e73ea
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/minigrep-9599552de779ed3e
[INFO] [stdout] test tests::should_read_args ... ok
[INFO] [stdout] test tests::one_result ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/integration-187a3106ba2368c7
[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 1 test
[INFO] [stderr]    Doc-tests minigrep
[INFO] [stdout] test main ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[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] running `Command { std: "docker" "inspect" "ffaa64ef996415f0258cb0829c44ce32c955a67276c767d84c7bc73c6cbc01cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffaa64ef996415f0258cb0829c44ce32c955a67276c767d84c7bc73c6cbc01cd", kill_on_drop: false }`
[INFO] [stdout] ffaa64ef996415f0258cb0829c44ce32c955a67276c767d84c7bc73c6cbc01cd