[INFO] fetching crate rendersvg-meetmangukiya 0.9.1...
[INFO] testing rendersvg-meetmangukiya-0.9.1 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1
[INFO] extracting crate rendersvg-meetmangukiya 0.9.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate rendersvg-meetmangukiya 0.9.1
[INFO] finished tweaking crates.io crate rendersvg-meetmangukiya 0.9.1
[INFO] tweaked toml for crates.io crate rendersvg-meetmangukiya 0.9.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rendersvg-meetmangukiya 0.9.1 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rendersvg-meetmangukiya 0.9.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd0abc7b84d92070f4e219e9653c0a3c1721c4c6c065275df96b6892512bc044
[INFO] running `Command { std: "docker" "start" "-a" "bd0abc7b84d92070f4e219e9653c0a3c1721c4c6c065275df96b6892512bc044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd0abc7b84d92070f4e219e9653c0a3c1721c4c6c065275df96b6892512bc044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd0abc7b84d92070f4e219e9653c0a3c1721c4c6c065275df96b6892512bc044", kill_on_drop: false }`
[INFO] [stdout] bd0abc7b84d92070f4e219e9653c0a3c1721c4c6c065275df96b6892512bc044
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bdff416f8883cb52d5eaf85037e064cf02ed45c688fb33657623005750700827
[INFO] running `Command { std: "docker" "start" "-a" "bdff416f8883cb52d5eaf85037e064cf02ed45c688fb33657623005750700827", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling adler32 v1.0.4
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling float-cmp v0.5.3
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling xmlparser v0.13.1
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling unicode-script v0.5.0
[INFO] [stderr]    Compiling rctree v0.3.3
[INFO] [stderr]    Compiling unicode-vo v0.1.0
[INFO] [stderr]    Compiling data-url v0.1.0
[INFO] [stderr]    Compiling miniz_oxide v0.3.6
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling svgtypes v0.5.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling kurbo v0.5.11
[INFO] [stderr]    Compiling xmlwriter v0.1.0
[INFO] [stderr]    Compiling ttf-parser v0.3.0
[INFO] [stderr]    Compiling rgb v0.8.17
[INFO] [stderr]    Compiling base64 v0.11.0
[INFO] [stderr]    Compiling simplecss v0.2.0
[INFO] [stderr]    Compiling roxmltree v0.9.1
[INFO] [stderr]    Compiling fern v0.5.8
[INFO] [stderr]    Compiling png v0.15.3
[INFO] [stderr]    Compiling svgfilters v0.1.0
[INFO] [stderr]    Compiling pico-args v0.2.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.18
[INFO] [stderr]    Compiling flate2 v1.0.14
[INFO] [stderr]    Compiling memmap2 v0.1.0
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]    Compiling harfbuzz-sys v0.3.4
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]    Compiling freetype v0.4.1
[INFO] [stderr]    Compiling harfbuzz_rs v1.0.1
[INFO] [stderr]    Compiling usvg v0.9.0
[INFO] [stderr]    Compiling resvg v0.9.0
[INFO] [stderr]    Compiling rendersvg-meetmangukiya v0.9.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/main.rs:17:40
[INFO] [stdout]    |
[INFO] [stdout] 17 |         return Err(format!("{}", $msg));
[INFO] [stdout]    |                                        ^
[INFO] [stdout] ...
[INFO] [stdout] 38 |         bail!("rendersvg has been built without any backends")
[INFO] [stdout]    |         ------------------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]    = note: to ignore the value produced by the macro, add a semicolon after the invocation of `bail`
[INFO] [stdout]    = note: `#[deny(semicolon_in_expressions_from_macros)]` (part of `#[deny(future_incompatible)]`) on by default
[INFO] [stdout]    = note: this error originates in the macro `bail` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/main.rs:17:40
[INFO] [stdout]    |
[INFO] [stdout] 17 |         return Err(format!("{}", $msg));
[INFO] [stdout]    |                                        ^
[INFO] [stdout] ...
[INFO] [stdout] 46 |             bail!(e)
[INFO] [stdout]    |             -------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]    = note: to ignore the value produced by the macro, add a semicolon after the invocation of `bail`
[INFO] [stdout]    = note: this error originates in the macro `bail` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/main.rs:17:40
[INFO] [stdout]    |
[INFO] [stdout] 17 |         return Err(format!("{}", $msg));
[INFO] [stdout]    |                                        ^
[INFO] [stdout] ...
[INFO] [stdout] 71 |         _ => bail!("unknown backend"),
[INFO] [stdout]    |              ------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: this error originates in the macro `bail` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/main.rs:20:44
[INFO] [stdout]     |
[INFO] [stdout]  20 |         return Err(format!($fmt, $($arg)*));
[INFO] [stdout]     |                                            ^
[INFO] [stdout] ...
[INFO] [stdout] 102 |                 bail!("SVG doesn't have '{}' ID", id)
[INFO] [stdout]     |                 ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `bail`
[INFO] [stdout]     = note: this error originates in the macro `bail` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/main.rs:17:40
[INFO] [stdout]     |
[INFO] [stdout]  17 |         return Err(format!("{}", $msg));
[INFO] [stdout]     |                                        ^
[INFO] [stdout] ...
[INFO] [stdout] 110 |             None => { bail!("failed to allocate an image") }
[INFO] [stdout]     |                       ------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `bail`
[INFO] [stdout]     = note: this error originates in the macro `bail` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/main.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |           return Err(format!("{}", $msg));
[INFO] [stdout]    |           ------------------------------- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 41 | /     let (args, opt) = match args::parse() {
[INFO] [stdout] 42 | |         Ok((args, opt)) => (args, opt),
[INFO] [stdout] 43 | |         Err(e) => {
[INFO] [stdout] 44 | |             args::print_help();
[INFO] [stdout] ...  |
[INFO] [stdout] 48 | |     };
[INFO] [stdout]    | |______^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/args.rs:288:9
[INFO] [stdout]     |
[INFO] [stdout] 288 |     let mut list = Vec::new();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opt`
[INFO] [stdout]   --> src/main.rs:41:16
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let (args, opt) = match args::parse() {
[INFO] [stdout]    |                ^^^ help: if this is intentional, prefix it with an underscore: `_opt`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `backend`
[INFO] [stdout]   --> src/main.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let backend: Box<dyn Render> = match args.backend_name.as_str() {
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_backend`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rendersvg-meetmangukiya` (bin "rendersvg-meetmangukiya") due to 10 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "bdff416f8883cb52d5eaf85037e064cf02ed45c688fb33657623005750700827", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdff416f8883cb52d5eaf85037e064cf02ed45c688fb33657623005750700827", kill_on_drop: false }`
[INFO] [stdout] bdff416f8883cb52d5eaf85037e064cf02ed45c688fb33657623005750700827