[INFO] cloning repository https://github.com/parkcheolu/mini-redis
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/parkcheolu/mini-redis" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparkcheolu%2Fmini-redis", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparkcheolu%2Fmini-redis'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] decca24b8c7c30cc61dc34152c53a97fd5f7ad7c
[INFO] checking parkcheolu/mini-redis against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparkcheolu%2Fmini-redis" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/parkcheolu/mini-redis on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/parkcheolu/mini-redis
[INFO] finished tweaking git repo https://github.com/parkcheolu/mini-redis
[INFO] tweaked toml for git repo https://github.com/parkcheolu/mini-redis written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/parkcheolu/mini-redis already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-stream v0.1.3
[INFO] [stderr]   Downloaded tracing-attributes v0.1.12
[INFO] [stderr]   Downloaded pin-project-lite v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f5d0293ab8f72f0ae29195b06b1bf0bc02215d5fa388ba3dda36906f7e24ce99
[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" "f5d0293ab8f72f0ae29195b06b1bf0bc02215d5fa388ba3dda36906f7e24ce99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5d0293ab8f72f0ae29195b06b1bf0bc02215d5fa388ba3dda36906f7e24ce99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5d0293ab8f72f0ae29195b06b1bf0bc02215d5fa388ba3dda36906f7e24ce99", kill_on_drop: false }`
[INFO] [stdout] f5d0293ab8f72f0ae29195b06b1bf0bc02215d5fa388ba3dda36906f7e24ce99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 41e63cf61a72bdb1a1fdd3cba086e7e2c9bbf7c8f228c1dd70bcfc0283f8bbe7
[INFO] running `Command { std: "docker" "start" "-a" "41e63cf61a72bdb1a1fdd3cba086e7e2c9bbf7c8f228c1dd70bcfc0283f8bbe7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking pin-project-lite v0.2.2
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking futures-core v0.3.12
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling tokio v1.0.1
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking sharded-slab v0.1.1
[INFO] [stderr]     Checking serde_json v1.0.62
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking tracing-log v0.1.1
[INFO] [stderr]     Checking tracing-serde v0.1.2
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking parking_lot_core v0.8.2
[INFO] [stderr]     Checking mio v0.7.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atoi v0.4.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.12
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling async-stream-impl v0.3.0
[INFO] [stderr]     Checking async-stream v0.3.0
[INFO] [stderr]     Checking tracing v0.1.23
[INFO] [stderr]     Checking tracing-subscriber v0.2.15
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking tokio-stream v0.1.3
[INFO] [stderr]     Checking mini-redis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `instrument`
[INFO] [stdout]   --> src/client.rs:11:22
[INFO] [stdout]    |
[INFO] [stdout] 11 | use tracing::{debug, instrument};
[INFO] [stdout]    |                      ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `instrument`
[INFO] [stdout]  --> src/cmd/get.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tracing::{debug, instrument};
[INFO] [stdout]   |                      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `instrument`
[INFO] [stdout]  --> src/cmd/set.rs:6:22
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tracing::{debug, instrument};
[INFO] [stdout]   |                      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `instrument`
[INFO] [stdout]  --> src/cmd/unknown.rs:3:22
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tracing::{debug, instrument};
[INFO] [stdout]   |                      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `instrument`
[INFO] [stdout]   --> src/client.rs:11:22
[INFO] [stdout]    |
[INFO] [stdout] 11 | use tracing::{debug, instrument};
[INFO] [stdout]    |                      ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `instrument`
[INFO] [stdout]  --> src/cmd/get.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tracing::{debug, instrument};
[INFO] [stdout]   |                      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `instrument`
[INFO] [stdout]  --> src/cmd/set.rs:6:22
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tracing::{debug, instrument};
[INFO] [stdout]   |                      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `instrument`
[INFO] [stdout]   --> src/server.rs:15:35
[INFO] [stdout]    |
[INFO] [stdout] 15 | use tracing::{debug, error, info, instrument};
[INFO] [stdout]    |                                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `instrument`
[INFO] [stdout]  --> src/cmd/unknown.rs:3:22
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tracing::{debug, instrument};
[INFO] [stdout]   |                      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `instrument`
[INFO] [stdout]   --> src/server.rs:15:35
[INFO] [stdout]    |
[INFO] [stdout] 15 | use tracing::{debug, error, info, instrument};
[INFO] [stdout]    |                                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 44.22s
[INFO] running `Command { std: "docker" "inspect" "41e63cf61a72bdb1a1fdd3cba086e7e2c9bbf7c8f228c1dd70bcfc0283f8bbe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41e63cf61a72bdb1a1fdd3cba086e7e2c9bbf7c8f228c1dd70bcfc0283f8bbe7", kill_on_drop: false }`
[INFO] [stdout] 41e63cf61a72bdb1a1fdd3cba086e7e2c9bbf7c8f228c1dd70bcfc0283f8bbe7