[INFO] cloning repository https://github.com/HuQingyang/markdown-img-to-base64
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HuQingyang/markdown-img-to-base64" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHuQingyang%2Fmarkdown-img-to-base64", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHuQingyang%2Fmarkdown-img-to-base64'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bf665090f918e55618e0bc05b1812042f0f6f6a8
[INFO] checking HuQingyang/markdown-img-to-base64 against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHuQingyang%2Fmarkdown-img-to-base64" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HuQingyang/markdown-img-to-base64 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/HuQingyang/markdown-img-to-base64
[INFO] finished tweaking git repo https://github.com/HuQingyang/markdown-img-to-base64
[INFO] tweaked toml for git repo https://github.com/HuQingyang/markdown-img-to-base64 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/HuQingyang/markdown-img-to-base64 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lazycell v1.2.0
[INFO] [stderr]   Downloaded openssl-sys v0.9.36
[INFO] [stderr]   Downloaded serde_urlencoded v0.5.3
[INFO] [stderr]   Downloaded libflate v0.1.16
[INFO] [stderr]   Downloaded security-framework-sys v0.2.1
[INFO] [stderr]   Downloaded openssl v0.10.12
[INFO] [stderr]   Downloaded security-framework v0.2.1
[INFO] [stderr]   Downloaded deflate v0.7.18
[INFO] [stderr]   Downloaded hyper-tls v0.3.0
[INFO] [stderr]   Downloaded utf8-ranges v1.0.1
[INFO] [stderr]   Downloaded nom v2.2.1
[INFO] [stderr]   Downloaded aho-corasick v0.6.8
[INFO] [stderr]   Downloaded mime v0.3.9
[INFO] [stderr]   Downloaded http v0.1.13
[INFO] [stderr]   Downloaded encoding_rs v0.8.6
[INFO] [stderr]   Downloaded image v0.12.4
[INFO] [stderr]   Downloaded regex v1.0.5
[INFO] [stderr]   Downloaded hyper v0.12.10
[INFO] [stderr]   Downloaded reqwest v0.9.0
[INFO] [stderr]   Downloaded serde_json v1.0.28
[INFO] [stderr]   Downloaded tempfile v3.0.4
[INFO] [stderr]   Downloaded url v1.7.1
[INFO] [stderr]   Downloaded native-tls v0.2.1
[INFO] [stderr]   Downloaded tree_magic v0.2.0
[INFO] [stderr]   Downloaded image-base64 v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] da029089f44ccb9462b2b9434a06ae0940d2539838c315f6032b0bec6f08fe54
[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" "da029089f44ccb9462b2b9434a06ae0940d2539838c315f6032b0bec6f08fe54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da029089f44ccb9462b2b9434a06ae0940d2539838c315f6032b0bec6f08fe54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da029089f44ccb9462b2b9434a06ae0940d2539838c315f6032b0bec6f08fe54", kill_on_drop: false }`
[INFO] [stdout] da029089f44ccb9462b2b9434a06ae0940d2539838c315f6032b0bec6f08fe54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06e13d2cc6adb83790472ac5693aa6eaddda57216592843c506a232f49bd3246
[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" "06e13d2cc6adb83790472ac5693aa6eaddda57216592843c506a232f49bd3246", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking futures v0.1.24
[INFO] [stderr]     Checking lazycell v1.2.0
[INFO] [stderr]    Compiling rand_core v0.2.1
[INFO] [stderr]    Compiling httparse v1.3.2
[INFO] [stderr]    Compiling openssl v0.10.12
[INFO] [stderr]    Compiling native-tls v0.2.1
[INFO] [stderr]     Checking indexmap v1.0.1
[INFO] [stderr]     Checking string v0.1.1
[INFO] [stderr]     Checking inflate v0.1.1
[INFO] [stderr]     Checking log v0.4.5
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]    Compiling unicase v2.1.0
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking base64 v0.4.2
[INFO] [stderr]     Checking encoding_rs v0.8.6
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]    Compiling openssl-sys v0.9.36
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]     Checking lock_api v0.1.3
[INFO] [stderr]     Checking bytes v0.4.10
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking tree_magic v0.2.0
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking serde_json v1.0.28
[INFO] [stderr]     Checking crossbeam-epoch v0.5.2
[INFO] [stderr]     Checking num-iter v0.1.37
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking serde_urlencoded v0.5.3
[INFO] [stderr]     Checking libflate v0.1.16
[INFO] [stderr]    Compiling phf_shared v0.7.23
[INFO] [stderr]     Checking crossbeam-deque v0.6.1
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[INFO] [stderr]     Checking aho-corasick v0.6.8
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[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking http v0.1.13
[INFO] [stderr]     Checking png v0.6.2
[INFO] [stderr]     Checking parking_lot_core v0.3.1
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[INFO] [stderr]     Checking phf v0.7.23
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[INFO] [stderr]    Compiling phf_generator v0.7.23
[INFO] [stderr]     Checking tokio-threadpool v0.1.6
[INFO] [stderr]     Checking tokio-current-thread v0.1.1
[INFO] [stderr]     Checking tokio-timer v0.2.6
[INFO] [stderr]    Compiling phf_codegen v0.7.23
[INFO] [stderr]     Checking image v0.12.4
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking tokio-reactor v0.1.5
[INFO] [stderr]     Checking tokio-codec v0.1.0
[INFO] [stderr]     Checking tokio-fs v0.1.3
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking tokio-tcp v0.1.1
[INFO] [stderr]     Checking tokio-udp v0.1.2
[INFO] [stderr]     Checking tokio-uds v0.2.1
[INFO] [stderr]     Checking tokio v0.1.8
[INFO] [stderr]     Checking h2 v0.1.12
[INFO] [stderr]     Checking image-base64 v0.1.0
[INFO] [stderr]     Checking hyper v0.12.10
[INFO] [stderr]     Checking hyper-tls v0.3.0
[INFO] [stderr]     Checking reqwest v0.9.0
[INFO] [stderr]     Checking markdown-img-to-base64 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |         fs::rename(&filepath, &new_path);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 110 |         fs::remove_file(new_path);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 114 |         fs::remove_file(filepath);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |         fs::rename(&filepath, &new_path);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 110 |         fs::remove_file(new_path);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 114 |         fs::remove_file(filepath);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.78s
[INFO] running `Command { std: "docker" "inspect" "06e13d2cc6adb83790472ac5693aa6eaddda57216592843c506a232f49bd3246", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06e13d2cc6adb83790472ac5693aa6eaddda57216592843c506a232f49bd3246", kill_on_drop: false }`
[INFO] [stdout] 06e13d2cc6adb83790472ac5693aa6eaddda57216592843c506a232f49bd3246