[INFO] cloning repository https://github.com/nyuichi/dot-keyword
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nyuichi/dot-keyword" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnyuichi%2Fdot-keyword", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnyuichi%2Fdot-keyword'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 45a749a646fe2a2b5cd8b09fcd772667e54201f8
[INFO] checking nyuichi/dot-keyword against try#575650af7d7ca88602df28e39d27bf3e456c306e for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnyuichi%2Fdot-keyword" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nyuichi/dot-keyword on toolchain 575650af7d7ca88602df28e39d27bf3e456c306e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nyuichi/dot-keyword
[INFO] removed path dependency syn from git repo https://github.com/nyuichi/dot-keyword
[INFO] finished tweaking git repo https://github.com/nyuichi/dot-keyword
[INFO] tweaked toml for git repo https://github.com/nyuichi/dot-keyword written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/nyuichi/dot-keyword already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (syn) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-4/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (syn) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e264666bf9dbed24e8a6b858a1db9555fb1e095f7a37470b6ecb03d785384dd9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e264666bf9dbed24e8a6b858a1db9555fb1e095f7a37470b6ecb03d785384dd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e264666bf9dbed24e8a6b858a1db9555fb1e095f7a37470b6ecb03d785384dd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e264666bf9dbed24e8a6b858a1db9555fb1e095f7a37470b6ecb03d785384dd9", kill_on_drop: false }`
[INFO] [stdout] e264666bf9dbed24e8a6b858a1db9555fb1e095f7a37470b6ecb03d785384dd9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e683591f6bcfcea806d7e4297b89ea269db287cc97d48d1e4a52bbb6ca82b6ef
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e683591f6bcfcea806d7e4297b89ea269db287cc97d48d1e4a52bbb6ca82b6ef", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (syn) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]     Checking proc-macro2 v1.0.24
[INFO] [stderr]     Checking quote v1.0.8
[INFO] [stderr]     Checking dot-keyword v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: proc macro panicked
[INFO] [stdout]  --> examples/match.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | /     postfix_match! {
[INFO] [stdout] 5 | |         num_opt.match {
[INFO] [stdout] 6 | |             Some(num) => Some(num + 1),
[INFO] [stdout] 7 | |             None => None,
[INFO] [stdout] 8 | |         }
[INFO] [stdout] 9 | |     }
[INFO] [stdout]   | |_____^
[INFO] [stdout]   |
[INFO] [stdout]   = help: message: called `Result::unwrap()` on an `Err` value: Error("expected identifier or integer")
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: proc macro panicked
[INFO] [stdout]   --> examples/match.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     postfix_match! {
[INFO] [stdout] 14 | |         num_opt.match {
[INFO] [stdout] 15 | |             Some(num) => Some(num + 1),
[INFO] [stdout] 16 | |             None => None,
[INFO] [stdout] ...  |
[INFO] [stdout] 20 | |         }
[INFO] [stdout] 21 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: called `Result::unwrap()` on an `Err` value: Error("expected identifier or integer")
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dot-keyword`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "e683591f6bcfcea806d7e4297b89ea269db287cc97d48d1e4a52bbb6ca82b6ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e683591f6bcfcea806d7e4297b89ea269db287cc97d48d1e4a52bbb6ca82b6ef", kill_on_drop: false }`
[INFO] [stdout] e683591f6bcfcea806d7e4297b89ea269db287cc97d48d1e4a52bbb6ca82b6ef