[INFO] updating cached repository https://github.com/HuQingyang/markdown-img-to-base64
[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] bf665090f918e55618e0bc05b1812042f0f6f6a8
[INFO] testing HuQingyang/markdown-img-to-base64 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHuQingyang%2Fmarkdown-img-to-base64" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HuQingyang/markdown-img-to-base64 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/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-6/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 `"/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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 1a3fbc6a4e5374181d5a876d88158e275280c3358bb7b7c7b797ad181e8e1cdc
[INFO] running `"docker" "start" "-a" "1a3fbc6a4e5374181d5a876d88158e275280c3358bb7b7c7b797ad181e8e1cdc"`
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling lazycell v1.2.0
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]    Compiling rayon v1.0.2
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling serde v1.0.79
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.12
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]    Compiling unicode-normalization v0.1.7
[INFO] [stderr]    Compiling native-tls v0.2.1
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling inflate v0.1.1
[INFO] [stderr]    Compiling utf8-ranges v1.0.1
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling safemem v0.3.0
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]    Compiling dtoa v0.4.3
[INFO] [stderr]    Compiling nom v2.2.1
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]    Compiling unicase v2.1.0
[INFO] [stderr]    Compiling base64 v0.4.2
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling encoding_rs v0.8.6
[INFO] [stderr]    Compiling deflate v0.7.18
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling regex-syntax v0.6.2
[INFO] [stderr]    Compiling gif v0.9.2
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling uuid v0.7.1
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling openssl-sys v0.9.36
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling http v0.1.13
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling url v1.7.1
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling tree_magic v0.2.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling phf_shared v0.7.23
[INFO] [stderr]    Compiling aho-corasick v0.6.8
[INFO] [stderr]    Compiling mime v0.3.9
[INFO] [stderr]    Compiling libflate v0.1.16
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling phf_generator v0.7.23
[INFO] [stderr]    Compiling phf v0.7.23
[INFO] [stderr]    Compiling h2 v0.1.12
[INFO] [stderr]    Compiling png v0.6.2
[INFO] [stderr]    Compiling phf_codegen v0.7.23
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]    Compiling tokio-reactor v0.1.5
[INFO] [stderr]    Compiling serde_json v1.0.28
[INFO] [stderr]    Compiling serde_urlencoded v0.5.3
[INFO] [stderr]    Compiling tokio-uds v0.2.1
[INFO] [stderr]    Compiling tokio-udp v0.1.2
[INFO] [stderr]    Compiling tokio-tcp v0.1.1
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling tokio v0.1.8
[INFO] [stderr]    Compiling hyper v0.12.10
[INFO] [stderr]    Compiling image v0.12.4
[INFO] [stderr]    Compiling hyper-tls v0.3.0
[INFO] [stderr]    Compiling reqwest v0.9.0
[INFO] [stderr]    Compiling image-base64 v0.1.0
[INFO] [stderr]    Compiling markdown-img-to-base64 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:107:9
[INFO] [stderr]     |
[INFO] [stderr] 107 |         fs::rename(&filepath, &new_path);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:110:9
[INFO] [stderr]     |
[INFO] [stderr] 110 |         fs::remove_file(new_path);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:114:9
[INFO] [stderr]     |
[INFO] [stderr] 114 |         fs::remove_file(filepath);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 06s
[INFO] running `"docker" "inspect" "1a3fbc6a4e5374181d5a876d88158e275280c3358bb7b7c7b797ad181e8e1cdc"`
[INFO] running `"docker" "rm" "-f" "1a3fbc6a4e5374181d5a876d88158e275280c3358bb7b7c7b797ad181e8e1cdc"`
[INFO] [stdout] 1a3fbc6a4e5374181d5a876d88158e275280c3358bb7b7c7b797ad181e8e1cdc
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] ef148161fdd74b0a806bf0cbf5cee1816cc74fa8ae09133fe1371006d3563e87
[INFO] running `"docker" "start" "-a" "ef148161fdd74b0a806bf0cbf5cee1816cc74fa8ae09133fe1371006d3563e87"`
[INFO] [stderr]    Compiling markdown-img-to-base64 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:107:9
[INFO] [stderr]     |
[INFO] [stderr] 107 |         fs::rename(&filepath, &new_path);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:110:9
[INFO] [stderr]     |
[INFO] [stderr] 110 |         fs::remove_file(new_path);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:114:9
[INFO] [stderr]     |
[INFO] [stderr] 114 |         fs::remove_file(filepath);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `"docker" "inspect" "ef148161fdd74b0a806bf0cbf5cee1816cc74fa8ae09133fe1371006d3563e87"`
[INFO] running `"docker" "rm" "-f" "ef148161fdd74b0a806bf0cbf5cee1816cc74fa8ae09133fe1371006d3563e87"`
[INFO] [stdout] ef148161fdd74b0a806bf0cbf5cee1816cc74fa8ae09133fe1371006d3563e87
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] d60c1601257fc90c89e419f842360bb58a1e7dbf126a0645f7b05dc31147e75e
[INFO] running `"docker" "start" "-a" "d60c1601257fc90c89e419f842360bb58a1e7dbf126a0645f7b05dc31147e75e"`
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:107:9
[INFO] [stderr]     |
[INFO] [stderr] 107 |         fs::rename(&filepath, &new_path);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:110:9
[INFO] [stderr]     |
[INFO] [stderr] 110 |         fs::remove_file(new_path);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:114:9
[INFO] [stderr]     |
[INFO] [stderr] 114 |         fs::remove_file(filepath);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.84s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/markdown_img_to_base64-1f65f740f97be7ba
[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" "d60c1601257fc90c89e419f842360bb58a1e7dbf126a0645f7b05dc31147e75e"`
[INFO] running `"docker" "rm" "-f" "d60c1601257fc90c89e419f842360bb58a1e7dbf126a0645f7b05dc31147e75e"`
[INFO] [stdout] d60c1601257fc90c89e419f842360bb58a1e7dbf126a0645f7b05dc31147e75e