[INFO] cloning repository https://github.com/ulloacastillo/random-forest
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ulloacastillo/random-forest" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fulloacastillo%2Frandom-forest", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fulloacastillo%2Frandom-forest'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 20434c173bab956fec5286530b964f3a0ff0c584
[INFO] checking ulloacastillo/random-forest against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fulloacastillo%2Frandom-forest" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  77% (617/795)
Updating files:  78% (621/795)
Updating files:  79% (629/795)
Updating files:  80% (636/795)
Updating files:  81% (644/795)
Updating files:  82% (652/795)
Updating files:  83% (660/795)
Updating files:  84% (668/795)
Updating files:  85% (676/795)
Updating files:  86% (684/795)
Updating files:  87% (692/795)
Updating files:  88% (700/795)
Updating files:  89% (708/795)
Updating files:  90% (716/795)
Updating files:  91% (724/795)
Updating files:  92% (732/795)
Updating files:  93% (740/795)
Updating files:  94% (748/795)
Updating files:  95% (756/795)
Updating files:  96% (764/795)
Updating files:  97% (772/795)
Updating files:  98% (780/795)
Updating files:  99% (788/795)
Updating files: 100% (795/795)
Updating files: 100% (795/795), done.
[INFO] validating manifest of git repo https://github.com/ulloacastillo/random-forest on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ulloacastillo/random-forest
[INFO] finished tweaking git repo https://github.com/ulloacastillo/random-forest
[INFO] tweaked toml for git repo https://github.com/ulloacastillo/random-forest written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ulloacastillo/random-forest 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-test v0.3.33
[INFO] [stderr]   Downloaded wasm-bindgen-test-macro v0.3.33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a4ca23668ee6b24b93c0d3514fd997b73954304d87ead33c147a5bf97ea354b
[INFO] running `Command { std: "docker" "start" "-a" "9a4ca23668ee6b24b93c0d3514fd997b73954304d87ead33c147a5bf97ea354b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a4ca23668ee6b24b93c0d3514fd997b73954304d87ead33c147a5bf97ea354b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a4ca23668ee6b24b93c0d3514fd997b73954304d87ead33c147a5bf97ea354b", kill_on_drop: false }`
[INFO] [stdout] 9a4ca23668ee6b24b93c0d3514fd997b73954304d87ead33c147a5bf97ea354b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14e8c1b3b2a463f01c14b122ea47b30f574921bd0e9f03dca9968bd4cf959d74
[INFO] running `Command { std: "docker" "start" "-a" "14e8c1b3b2a463f01c14b122ea47b30f574921bd0e9f03dca9968bd4cf959d74", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.44
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling syn v1.0.101
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.83
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling bumpalo v3.11.0
[INFO] [stderr]    Compiling once_cell v1.15.0
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]    Compiling wasm-bindgen v0.2.83
[INFO] [stderr]    Compiling libc v0.2.133
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.44/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[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 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "14e8c1b3b2a463f01c14b122ea47b30f574921bd0e9f03dca9968bd4cf959d74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14e8c1b3b2a463f01c14b122ea47b30f574921bd0e9f03dca9968bd4cf959d74", kill_on_drop: false }`
[INFO] [stdout] 14e8c1b3b2a463f01c14b122ea47b30f574921bd0e9f03dca9968bd4cf959d74
[INFO] checking ulloacastillo/random-forest against try#36dbcaee1a55543dfc181be52a69d99ff46ff62f for pr-122960-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fulloacastillo%2Frandom-forest" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  52% (421/795)
Updating files:  53% (422/795)
Updating files:  54% (430/795)
Updating files:  55% (438/795)
Updating files:  56% (446/795)
Updating files:  57% (454/795)
Updating files:  58% (462/795)
Updating files:  59% (470/795)
Updating files:  60% (477/795)
Updating files:  61% (485/795)
Updating files:  62% (493/795)
Updating files:  63% (501/795)
Updating files:  64% (509/795)
Updating files:  65% (517/795)
Updating files:  66% (525/795)
Updating files:  67% (533/795)
Updating files:  68% (541/795)
Updating files:  69% (549/795)
Updating files:  70% (557/795)
Updating files:  71% (565/795)
Updating files:  72% (573/795)
Updating files:  73% (581/795)
Updating files:  74% (589/795)
Updating files:  75% (597/795)
Updating files:  76% (605/795)
Updating files:  77% (613/795)
Updating files:  78% (621/795)
Updating files:  79% (629/795)
Updating files:  80% (636/795)
Updating files:  81% (644/795)
Updating files:  82% (652/795)
Updating files:  83% (660/795)
Updating files:  84% (668/795)
Updating files:  85% (676/795)
Updating files:  86% (684/795)
Updating files:  87% (692/795)
Updating files:  88% (700/795)
Updating files:  89% (708/795)
Updating files:  90% (716/795)
Updating files:  91% (724/795)
Updating files:  92% (732/795)
Updating files:  93% (740/795)
Updating files:  94% (748/795)
Updating files:  95% (756/795)
Updating files:  96% (764/795)
Updating files:  97% (772/795)
Updating files:  98% (780/795)
Updating files:  99% (788/795)
Updating files: 100% (795/795)
Updating files: 100% (795/795), done.
[INFO] validating manifest of git repo https://github.com/ulloacastillo/random-forest on toolchain 36dbcaee1a55543dfc181be52a69d99ff46ff62f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ulloacastillo/random-forest
[INFO] finished tweaking git repo https://github.com/ulloacastillo/random-forest
[INFO] tweaked toml for git repo https://github.com/ulloacastillo/random-forest written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ulloacastillo/random-forest 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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c33eedf60cc2e189fc945930a2e4fcf7892fe4f21009775c4df31bb3a1b3a0cb
[INFO] running `Command { std: "docker" "start" "-a" "c33eedf60cc2e189fc945930a2e4fcf7892fe4f21009775c4df31bb3a1b3a0cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c33eedf60cc2e189fc945930a2e4fcf7892fe4f21009775c4df31bb3a1b3a0cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c33eedf60cc2e189fc945930a2e4fcf7892fe4f21009775c4df31bb3a1b3a0cb", kill_on_drop: false }`
[INFO] [stdout] c33eedf60cc2e189fc945930a2e4fcf7892fe4f21009775c4df31bb3a1b3a0cb
[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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4126c018f4dd22f6c5e99c8653b03f7d3fc8dfe52e5bdb1b9fe6e283641e56a3
[INFO] running `Command { std: "docker" "start" "-a" "4126c018f4dd22f6c5e99c8653b03f7d3fc8dfe52e5bdb1b9fe6e283641e56a3", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "4126c018f4dd22f6c5e99c8653b03f7d3fc8dfe52e5bdb1b9fe6e283641e56a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4126c018f4dd22f6c5e99c8653b03f7d3fc8dfe52e5bdb1b9fe6e283641e56a3", kill_on_drop: false }`
[INFO] [stdout] 4126c018f4dd22f6c5e99c8653b03f7d3fc8dfe52e5bdb1b9fe6e283641e56a3