[INFO] cloning repository https://github.com/jswrenn/gulog
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jswrenn/gulog" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjswrenn%2Fgulog", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjswrenn%2Fgulog'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b90cdeb4aa9446fd50ae2013c4ee9969f7cab3a4
[INFO] testing jswrenn/gulog against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjswrenn%2Fgulog" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jswrenn/gulog on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jswrenn/gulog
[INFO] finished tweaking git repo https://github.com/jswrenn/gulog
[INFO] tweaked toml for git repo https://github.com/jswrenn/gulog written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/jswrenn/gulog already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0dd548a5bf50f11b819972a326230069e36eacf42e178d9a9b573548a4373a60
[INFO] running `Command { std: "docker" "start" "-a" "0dd548a5bf50f11b819972a326230069e36eacf42e178d9a9b573548a4373a60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0dd548a5bf50f11b819972a326230069e36eacf42e178d9a9b573548a4373a60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dd548a5bf50f11b819972a326230069e36eacf42e178d9a9b573548a4373a60", kill_on_drop: false }`
[INFO] [stdout] 0dd548a5bf50f11b819972a326230069e36eacf42e178d9a9b573548a4373a60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 085112dd0eeef02d2696e16282377e81e972f2900616be4dcc7affe53e5b62e7
[INFO] running `Command { std: "docker" "start" "-a" "085112dd0eeef02d2696e16282377e81e972f2900616be4dcc7affe53e5b62e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling gulog v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: identifier contains uncommon Unicode codepoints
[INFO] [stdout]   --> src/main.rs:97:36
[INFO] [stdout]    |
[INFO] [stdout] 97 |         (Term::Structure(Structure(functorₛ, termsₛ)), 
[INFO] [stdout]    |                                    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(uncommon_codepoints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: identifier contains uncommon Unicode codepoints
[INFO] [stdout]   --> src/main.rs:97:46
[INFO] [stdout]    |
[INFO] [stdout] 97 |         (Term::Structure(Structure(functorₛ, termsₛ)), 
[INFO] [stdout]    |                                              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: identifier contains uncommon Unicode codepoints
[INFO] [stdout]   --> src/main.rs:98:36
[INFO] [stdout]    |
[INFO] [stdout] 98 |          Term::Structure(Structure(functorₜ, termsₜ))) =>
[INFO] [stdout]    |                                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: identifier contains uncommon Unicode codepoints
[INFO] [stdout]   --> src/main.rs:98:46
[INFO] [stdout]    |
[INFO] [stdout] 98 |          Term::Structure(Structure(functorₜ, termsₜ))) =>
[INFO] [stdout]    |                                              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: identifier contains uncommon Unicode codepoints
[INFO] [stdout]    --> src/main.rs:104:22
[INFO] [stdout]     |
[INFO] [stdout] 104 |                 for (termₛ,termₜ) in zip!(termsₛ,termsₜ) {
[INFO] [stdout]     |                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: identifier contains uncommon Unicode codepoints
[INFO] [stdout]    --> src/main.rs:104:28
[INFO] [stdout]     |
[INFO] [stdout] 104 |                 for (termₛ,termₜ) in zip!(termsₛ,termsₜ) {
[INFO] [stdout]     |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `push_all` found for struct `std::vec::Vec<(Variable, Term)>` in the current scope
[INFO] [stdout]    --> src/main.rs:110:39
[INFO] [stdout]     |
[INFO] [stdout] 110 |                         substitutions.push_all(&unifier[..])
[INFO] [stdout]     |                                       ^^^^^^^^ method not found in `std::vec::Vec<(Variable, Term)>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gulog`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "085112dd0eeef02d2696e16282377e81e972f2900616be4dcc7affe53e5b62e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "085112dd0eeef02d2696e16282377e81e972f2900616be4dcc7affe53e5b62e7", kill_on_drop: false }`
[INFO] [stdout] 085112dd0eeef02d2696e16282377e81e972f2900616be4dcc7affe53e5b62e7