[INFO] cloning repository https://github.com/TooManyBees/fennel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TooManyBees/fennel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTooManyBees%2Ffennel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTooManyBees%2Ffennel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e40c1d7a45a253604be28ef3c02c9380704c8b94
[INFO] checking TooManyBees/fennel against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTooManyBees%2Ffennel" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TooManyBees/fennel on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TooManyBees/fennel
[INFO] finished tweaking git repo https://github.com/TooManyBees/fennel
[INFO] tweaked toml for git repo https://github.com/TooManyBees/fennel written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/TooManyBees/fennel already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (getrandom) 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]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-lite v1.7.0
[INFO] [stderr]   Downloaded bcrypt v0.9.0
[INFO] [stderr]   Downloaded async-fs v1.3.0
[INFO] [stderr]   Downloaded async-barrier v1.0.1
[INFO] [stderr]   Downloaded async-task v4.0.0
[INFO] [stderr]   Downloaded blowfish v0.7.0
[INFO] [stderr]   Downloaded async-io v1.1.2
[INFO] [stderr]   Downloaded generational-arena v0.2.8
[INFO] [stderr]   Downloaded async-mutex v1.3.0
[INFO] [stderr]   Downloaded async-semaphore v1.1.0
[INFO] [stderr]   Downloaded async-rwlock v1.1.0
[INFO] [stderr]   Downloaded wepoll-sys-stjepang v1.0.8
[INFO] [stderr]   Downloaded async-lock v2.1.3
[INFO] [stderr]   Downloaded async-process v1.0.0
[INFO] [stderr]   Downloaded polling v1.1.0
[INFO] [stderr]   Downloaded telnet v0.1.4
[INFO] [stderr]   Downloaded smol v1.1.0
[INFO] [stderr]   Downloaded blocking v1.0.0
[INFO] [stderr]   Downloaded async-channel v1.4.2
[INFO] [stderr]   Downloaded async-net v1.4.1
[INFO] [stderr]   Downloaded nb-connect v1.0.0
[INFO] [stderr]   Downloaded ahash v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6871c8d4f67281975f7c087bdf25535a38f30e1fc2dd1f62ef60887ebf89b49
[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" "f6871c8d4f67281975f7c087bdf25535a38f30e1fc2dd1f62ef60887ebf89b49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6871c8d4f67281975f7c087bdf25535a38f30e1fc2dd1f62ef60887ebf89b49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6871c8d4f67281975f7c087bdf25535a38f30e1fc2dd1f62ef60887ebf89b49", kill_on_drop: false }`
[INFO] [stdout] f6871c8d4f67281975f7c087bdf25535a38f30e1fc2dd1f62ef60887ebf89b49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0bd6315a2965b281d5511a90ca5e280d8315ba43a18069240191fbb6a0c7692f
[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" "0bd6315a2965b281d5511a90ca5e280d8315ba43a18069240191fbb6a0c7692f", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (getrandom) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking async-task v4.0.0
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking telnet v0.1.4
[INFO] [stderr]     Checking async-semaphore v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]     Checking async-channel v1.4.2
[INFO] [stderr]     Checking async-rwlock v1.1.0
[INFO] [stderr]     Checking async-barrier v1.0.1
[INFO] [stderr]     Checking nb-connect v1.0.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking generational-arena v0.2.8
[INFO] [stderr]     Checking generic-array v0.14.4
[INFO] [stderr]     Checking async-lock v2.1.3
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking ahash v0.5.1
[INFO] [stderr]     Checking futures-lite v1.7.0
[INFO] [stderr]     Checking polling v1.1.0
[INFO] [stderr]     Checking cipher v0.2.5
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking blowfish v0.7.0
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]     Checking bcrypt v0.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking blocking v1.0.0
[INFO] [stderr]     Checking async-io v1.1.2
[INFO] [stderr]     Checking async-executor v1.3.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking async-fs v1.3.0
[INFO] [stderr]     Checking async-net v1.4.1
[INFO] [stderr]     Checking async-process v1.0.0
[INFO] [stderr]     Checking smol v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]     Checking serde v1.0.116
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking femme v2.1.1
[INFO] [stderr]     Checking fennel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `max_len`
[INFO] [stdout]   --> src/listener.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     max_len: usize,
[INFO] [stdout]    |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_len`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timeout`
[INFO] [stdout]   --> src/listener.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     timeout: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_timeout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_len`
[INFO] [stdout]   --> src/listener.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     max_len: usize,
[INFO] [stdout]    |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_len`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `timeout`
[INFO] [stdout]   --> src/listener.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     timeout: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_timeout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 08s
[INFO] running `Command { std: "docker" "inspect" "0bd6315a2965b281d5511a90ca5e280d8315ba43a18069240191fbb6a0c7692f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bd6315a2965b281d5511a90ca5e280d8315ba43a18069240191fbb6a0c7692f", kill_on_drop: false }`
[INFO] [stdout] 0bd6315a2965b281d5511a90ca5e280d8315ba43a18069240191fbb6a0c7692f