[INFO] cloning repository https://github.com/nelsonjchen/tla_plus_lecture_description
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nelsonjchen/tla_plus_lecture_description" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnelsonjchen%2Ftla_plus_lecture_description", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnelsonjchen%2Ftla_plus_lecture_description'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 73e786af89dc4dbab85d3f2ad4d50c5673c6b12b
[INFO] checking nelsonjchen/tla_plus_lecture_description against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnelsonjchen%2Ftla_plus_lecture_description" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nelsonjchen/tla_plus_lecture_description on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nelsonjchen/tla_plus_lecture_description
[INFO] finished tweaking git repo https://github.com/nelsonjchen/tla_plus_lecture_description
[INFO] tweaked toml for git repo https://github.com/nelsonjchen/tla_plus_lecture_description written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/nelsonjchen/tla_plus_lecture_description already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b500c0b7282557cee03defbca509fda8dcb513dc0174ff6dab5b1906648c6371
[INFO] running `Command { std: "docker" "start" "-a" "b500c0b7282557cee03defbca509fda8dcb513dc0174ff6dab5b1906648c6371", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b500c0b7282557cee03defbca509fda8dcb513dc0174ff6dab5b1906648c6371", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b500c0b7282557cee03defbca509fda8dcb513dc0174ff6dab5b1906648c6371", kill_on_drop: false }`
[INFO] [stdout] b500c0b7282557cee03defbca509fda8dcb513dc0174ff6dab5b1906648c6371
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f484d5c4d0a10e2ac513c9f38683434854302dae900a67f826f770e6e43fab83
[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" "f484d5c4d0a10e2ac513c9f38683434854302dae900a67f826f770e6e43fab83", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.23
[INFO] [stderr]     Checking time v0.1.37
[INFO] [stderr]     Checking tla_plus_lecture_description v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: multiple lines skipped by escaped newline
[INFO] [stdout]  --> src/main.rs:5:38
[INFO] [stdout]   |
[INFO] [stdout] 5 |   See description for time markers.\n\n\
[INFO] [stdout]   |  ______________________________________^
[INFO] [stdout] 6 | |
[INFO] [stdout] 7 | | IMPORTANT NOTE!: This is a mirror of \
[INFO] [stdout]   | |_ skipping everything up to and including this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple lines skipped by escaped newline
[INFO] [stdout]  --> src/main.rs:5:38
[INFO] [stdout]   |
[INFO] [stdout] 5 |   See description for time markers.\n\n\
[INFO] [stdout]   |  ______________________________________^
[INFO] [stdout] 6 | |
[INFO] [stdout] 7 | | IMPORTANT NOTE!: This is a mirror of \
[INFO] [stdout]   | |_ skipping everything up to and including this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.08s
[INFO] running `Command { std: "docker" "inspect" "f484d5c4d0a10e2ac513c9f38683434854302dae900a67f826f770e6e43fab83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f484d5c4d0a10e2ac513c9f38683434854302dae900a67f826f770e6e43fab83", kill_on_drop: false }`
[INFO] [stdout] f484d5c4d0a10e2ac513c9f38683434854302dae900a67f826f770e6e43fab83