[INFO] cloning repository https://github.com/BURISTUS/word_of_wisdom
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BURISTUS/word_of_wisdom" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBURISTUS%2Fword_of_wisdom", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBURISTUS%2Fword_of_wisdom'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dcdc8e94a14ecc004d1ebbdff89bf0f3b9e9c348
[INFO] checking BURISTUS/word_of_wisdom against try#5fee451ebd94296ea05214e819c311e164b30af6 for pr-139042
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBURISTUS%2Fword_of_wisdom" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BURISTUS/word_of_wisdom on toolchain 5fee451ebd94296ea05214e819c311e164b30af6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5fee451ebd94296ea05214e819c311e164b30af6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/BURISTUS/word_of_wisdom
[INFO] finished tweaking git repo https://github.com/BURISTUS/word_of_wisdom
[INFO] tweaked toml for git repo https://github.com/BURISTUS/word_of_wisdom written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/BURISTUS/word_of_wisdom 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" "+5fee451ebd94296ea05214e819c311e164b30af6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+5fee451ebd94296ea05214e819c311e164b30af6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9aeee048003f4163cb6d97f9179936c470cd7bdbc4d50e49489f9c1ce707308a
[INFO] running `Command { std: "docker" "start" "-a" "9aeee048003f4163cb6d97f9179936c470cd7bdbc4d50e49489f9c1ce707308a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9aeee048003f4163cb6d97f9179936c470cd7bdbc4d50e49489f9c1ce707308a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9aeee048003f4163cb6d97f9179936c470cd7bdbc4d50e49489f9c1ce707308a", kill_on_drop: false }`
[INFO] [stdout] 9aeee048003f4163cb6d97f9179936c470cd7bdbc4d50e49489f9c1ce707308a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+5fee451ebd94296ea05214e819c311e164b30af6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6901236c552bdc8ca3f8345674f229950333af35dc76a44632267f4df66b7140
[INFO] running `Command { std: "docker" "start" "-a" "6901236c552bdc8ca3f8345674f229950333af35dc76a44632267f4df66b7140", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling parking_lot_core v0.9.6
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]    Compiling serde_json v1.0.91
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking cpufeatures v0.2.5
[INFO] [stderr]    Compiling tokio v1.25.0
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]     Checking mio v0.8.5
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.50/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] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rust-ini v0.13.0
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking aho-corasick v0.7.20
[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" "6901236c552bdc8ca3f8345674f229950333af35dc76a44632267f4df66b7140", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6901236c552bdc8ca3f8345674f229950333af35dc76a44632267f4df66b7140", kill_on_drop: false }`
[INFO] [stdout] 6901236c552bdc8ca3f8345674f229950333af35dc76a44632267f4df66b7140
