[INFO] fetching crate stegomage 0.1.0...
[INFO] testing stegomage-0.1.0 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739-1
[INFO] extracting crate stegomage 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate stegomage 0.1.0
[INFO] finished tweaking crates.io crate stegomage 0.1.0
[INFO] tweaked toml for crates.io crate stegomage 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate stegomage 0.1.0 on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate stegomage 0.1.0 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" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1898b40b6bc3684b4a3087c1430cc247fd6b7c1605ce169d7f449532e528a8a5
[INFO] running `Command { std: "docker" "start" "-a" "1898b40b6bc3684b4a3087c1430cc247fd6b7c1605ce169d7f449532e528a8a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1898b40b6bc3684b4a3087c1430cc247fd6b7c1605ce169d7f449532e528a8a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1898b40b6bc3684b4a3087c1430cc247fd6b7c1605ce169d7f449532e528a8a5", kill_on_drop: false }`
[INFO] [stdout] 1898b40b6bc3684b4a3087c1430cc247fd6b7c1605ce169d7f449532e528a8a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f068a2fc12aa012b35a7cdb540f6fff36a87cef1f4646dad61943de437e65c37
[INFO] running `Command { std: "docker" "start" "-a" "f068a2fc12aa012b35a7cdb540f6fff36a87cef1f4646dad61943de437e65c37", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling proc-macro2 v1.0.58
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling simd-adler32 v0.3.5
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling weezl v0.1.7
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling futures-sink v0.3.28
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling fdeflate v0.3.0
[INFO] [stderr]    Compiling zune-inflate v0.2.54
[INFO] [stderr]    Compiling miniz_oxide v0.6.2
[INFO] [stderr]    Compiling half v2.2.1
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.58/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a feature with a similar name: `proc_macro_span_file`
[INFO] [stdout]    |
[INFO] [stdout] 92 -     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout] 92 +     feature(proc_macro_span, proc_macro_span_file)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling lebe v0.5.2
[INFO] [stderr]    Compiling bit_field v0.10.2
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling bytemuck v1.13.1
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling flate2 v1.0.26
[INFO] [stderr]    Compiling gif v0.12.0
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f068a2fc12aa012b35a7cdb540f6fff36a87cef1f4646dad61943de437e65c37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f068a2fc12aa012b35a7cdb540f6fff36a87cef1f4646dad61943de437e65c37", kill_on_drop: false }`
[INFO] [stdout] f068a2fc12aa012b35a7cdb540f6fff36a87cef1f4646dad61943de437e65c37
