[INFO] cloning repository https://github.com/williamnoble/rust-zero
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/williamnoble/rust-zero" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwilliamnoble%2Frust-zero", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwilliamnoble%2Frust-zero'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0541020b5723bbae3c0491c14c41d538c2e71d61
[INFO] checking williamnoble/rust-zero/0541020b5723bbae3c0491c14c41d538c2e71d61 against master#e22dab387f6b4f6a87dfc54ac2f6013dddb41e68 for pr-136776-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwilliamnoble%2Frust-zero" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/williamnoble/rust-zero
[INFO] finished tweaking git repo https://github.com/williamnoble/rust-zero
[INFO] tweaked toml for git repo https://github.com/williamnoble/rust-zero written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/williamnoble/rust-zero on toolchain e22dab387f6b4f6a87dfc54ac2f6013dddb41e68
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e22dab387f6b4f6a87dfc54ac2f6013dddb41e68" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/williamnoble/rust-zero 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" "+e22dab387f6b4f6a87dfc54ac2f6013dddb41e68" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wiremock v0.5.14
[INFO] [stderr]   Downloaded anyhow v1.0.64
[INFO] [stderr]   Downloaded futures-io v0.3.24
[INFO] [stderr]   Downloaded smallvec v1.8.1
[INFO] [stderr]   Downloaded file-size v1.0.3
[INFO] [stderr]   Downloaded retain_mut v0.1.9
[INFO] [stderr]   Downloaded proc-macro2 v1.0.48
[INFO] [stderr]   Downloaded minimad v0.9.1
[INFO] [stderr]   Downloaded crokey v0.4.3
[INFO] [stderr]   Downloaded notify v5.0.0-pre.14
[INFO] [stderr]   Downloaded hashbrown v0.12.1
[INFO] [stderr]   Downloaded async-trait v0.1.57
[INFO] [stderr]   Downloaded coolor v0.5.0
[INFO] [stderr]   Downloaded unicode-normalization v0.1.20
[INFO] [stderr]   Downloaded crossterm v0.23.2
[INFO] [stderr]   Downloaded actix-http v3.1.0
[INFO] [stderr]   Downloaded fake v2.5.0
[INFO] [stderr]   Downloaded tracing-subscriber v0.3.14
[INFO] [stderr]   Downloaded syn v1.0.106
[INFO] [stderr]   Downloaded tracing-bunyan-formatter v0.3.3
[INFO] [stderr]   Downloaded deadpool v0.9.5
[INFO] [stderr]   Downloaded crossterm_winapi v0.9.0
[INFO] [stderr]   Downloaded utf8parse v0.2.0
[INFO] [stderr]   Downloaded semver v1.0.10
[INFO] [stderr]   Downloaded termimad v0.20.6
[INFO] [stderr]   Downloaded tracing-actix-web v0.5.1
[INFO] [stderr]   Downloaded validator v0.14.0
[INFO] [stderr]   Downloaded vte v0.8.0
[INFO] [stderr]   Downloaded serde-aux v3.1.0
[INFO] [stderr]   Downloaded proc-status v0.1.1
[INFO] [stderr]   Downloaded bacon v2.2.8
[INFO] [stderr]   Downloaded cli-log v2.0.0
[INFO] [stderr]   Downloaded crokey-proc_macros v0.4.0
[INFO] [stderr]   Downloaded lazy-regex-proc_macros v2.3.1
[INFO] [stderr]   Downloaded lazy-regex v2.3.1
[INFO] [stderr]   Downloaded vte_generate_state_changes v0.1.1
[INFO] [stderr]   Downloaded quickcheck_macros v0.9.1
[INFO] [stderr]   Downloaded validator_types v0.14.0
[INFO] [stderr]   Downloaded deadpool-runtime v0.1.2
[INFO] [stderr]   Downloaded unicode-ident v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+e22dab387f6b4f6a87dfc54ac2f6013dddb41e68" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 754d9ba00c63eb19a814fa5cee9e9b5723e10de2882ea58ead7a3a8505e31049
[INFO] running `Command { std: "docker" "start" "-a" "754d9ba00c63eb19a814fa5cee9e9b5723e10de2882ea58ead7a3a8505e31049", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "754d9ba00c63eb19a814fa5cee9e9b5723e10de2882ea58ead7a3a8505e31049", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "754d9ba00c63eb19a814fa5cee9e9b5723e10de2882ea58ead7a3a8505e31049", kill_on_drop: false }`
[INFO] [stdout] 754d9ba00c63eb19a814fa5cee9e9b5723e10de2882ea58ead7a3a8505e31049
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+e22dab387f6b4f6a87dfc54ac2f6013dddb41e68" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1016ffa01e623267fca753a860a52ec12d36f1e907647a89d3002aca19e88f6
[INFO] running `Command { std: "docker" "start" "-a" "e1016ffa01e623267fca753a860a52ec12d36f1e907647a89d3002aca19e88f6", kill_on_drop: false }`
[INFO] [stderr] warning: zero2prod v0.1.0 (/opt/rustwide/workdir) ignoring invalid dependency `bacon` which is missing a lib target
[INFO] [stderr]    Compiling proc-macro2 v1.0.48
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling syn v1.0.106
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]     Checking smallvec v1.8.1
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking futures-io v0.3.24
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking generic-array v0.14.5
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]     Checking tracing-core v0.1.28
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.48/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]    Compiling jobserver v0.1.24
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]     Checking unicode-normalization v0.1.20
[INFO] [stderr]     Checking hashbrown v0.12.1
[INFO] [stderr]    Compiling lock_api v0.4.6
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling untrusted v0.7.1
[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" "e1016ffa01e623267fca753a860a52ec12d36f1e907647a89d3002aca19e88f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1016ffa01e623267fca753a860a52ec12d36f1e907647a89d3002aca19e88f6", kill_on_drop: false }`
[INFO] [stdout] e1016ffa01e623267fca753a860a52ec12d36f1e907647a89d3002aca19e88f6