[INFO] fetching crate md2tex 0.1.3...
[INFO] checking md2tex-0.1.3 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate md2tex 0.1.3 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate md2tex 0.1.3 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate md2tex 0.1.3
[INFO] finished tweaking crates.io crate md2tex 0.1.3
[INFO] tweaked toml for crates.io crate md2tex 0.1.3 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", 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] befedc585421d3dc5c75e8ebb50df642f447e1d9956467f36fb6ecb067d8587f
[INFO] running `Command { std: "docker" "start" "-a" "befedc585421d3dc5c75e8ebb50df642f447e1d9956467f36fb6ecb067d8587f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "befedc585421d3dc5c75e8ebb50df642f447e1d9956467f36fb6ecb067d8587f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "befedc585421d3dc5c75e8ebb50df642f447e1d9956467f36fb6ecb067d8587f", kill_on_drop: false }`
[INFO] [stdout] befedc585421d3dc5c75e8ebb50df642f447e1d9956467f36fb6ecb067d8587f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 90da54aaa84bfec9ed47a90be1cb457d8129a7cfb353e447223ce4d6c4fcff48
[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" "90da54aaa84bfec9ed47a90be1cb457d8129a7cfb353e447223ce4d6c4fcff48", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking siphasher v0.2.3
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking rle-decode-fast v1.0.1
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling pulldown-cmark v0.5.3
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking phf_shared v0.7.24
[INFO] [stderr]     Checking data-url v0.1.0
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking crc32fast v1.2.1
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]     Checking libflate v0.1.27
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking svgtypes v0.4.4
[INFO] [stderr]     Checking harfbuzz_rs v1.2.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking png v0.15.3
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking svgdom v0.17.0
[INFO] [stderr]     Checking usvg v0.7.0
[INFO] [stderr]     Checking euclid v0.20.14
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking png v0.14.1
[INFO] [stderr]     Checking lyon_geom v0.14.1
[INFO] [stderr]     Checking image v0.21.3
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking Inflector v0.11.4
[INFO] [stderr]     Checking lyon_path v0.14.0
[INFO] [stderr]     Checking font-kit v0.4.0
[INFO] [stderr]    Compiling euclid_macros v0.1.0
[INFO] [stderr]     Checking raqote v0.6.4
[INFO] [stderr]     Checking euclid v0.19.9
[INFO] [stderr]     Checking lyon_geom v0.12.7
[INFO] [stderr]     Checking raqote v0.5.5
[INFO] [stderr]     Checking resvg v0.7.0
[INFO] [stderr]     Checking md2tex v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:277:74
[INFO] [stdout]     |
[INFO] [stdout] 277 |                 output.push_str("\\includegraphics[width=\\textwidth]{");;
[INFO] [stdout]     |                                                                          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:277:74
[INFO] [stdout]     |
[INFO] [stdout] 277 |                 output.push_str("\\includegraphics[width=\\textwidth]{");;
[INFO] [stdout]     |                                                                          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `path_str` is never read
[INFO] [stdout]    --> src/lib.rs:254:25
[INFO] [stdout]     |
[INFO] [stdout] 254 |                 let mut path_str = String::new();
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:470:21
[INFO] [stdout]     |
[INFO] [stdout] 470 |                 let mut lang = String::new();
[INFO] [stdout]     |                     ----^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `path_str` is never read
[INFO] [stdout]    --> src/lib.rs:254:25
[INFO] [stdout]     |
[INFO] [stdout] 254 |                 let mut path_str = String::new();
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:470:21
[INFO] [stdout]     |
[INFO] [stdout] 470 |                 let mut lang = String::new();
[INFO] [stdout]     |                     ----^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.89s
[INFO] running `Command { std: "docker" "inspect" "90da54aaa84bfec9ed47a90be1cb457d8129a7cfb353e447223ce4d6c4fcff48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90da54aaa84bfec9ed47a90be1cb457d8129a7cfb353e447223ce4d6c4fcff48", kill_on_drop: false }`
[INFO] [stdout] 90da54aaa84bfec9ed47a90be1cb457d8129a7cfb353e447223ce4d6c4fcff48