[INFO] cloning repository https://github.com/ratnadeepb/memenpsf
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ratnadeepb/memenpsf" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fratnadeepb%2Fmemenpsf", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fratnadeepb%2Fmemenpsf'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 602012b038e94270b0a1cd931b0e7fe6193050d2
[INFO] checking ratnadeepb/memenpsf against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fratnadeepb%2Fmemenpsf" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ratnadeepb/memenpsf on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ratnadeepb/memenpsf
[INFO] finished tweaking git repo https://github.com/ratnadeepb/memenpsf
[INFO] tweaked toml for git repo https://github.com/ratnadeepb/memenpsf written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/ratnadeepb/memenpsf already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-3/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[INFO] the lockfile is outdated, regenerating it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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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] e809745c079c9c258660a79842880e07d7f490671c61deaace7c0e4882e949d2
[INFO] running `Command { std: "docker" "start" "-a" "e809745c079c9c258660a79842880e07d7f490671c61deaace7c0e4882e949d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e809745c079c9c258660a79842880e07d7f490671c61deaace7c0e4882e949d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e809745c079c9c258660a79842880e07d7f490671c61deaace7c0e4882e949d2", kill_on_drop: false }`
[INFO] [stdout] e809745c079c9c258660a79842880e07d7f490671c61deaace7c0e4882e949d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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] 9602fd47f6f4efb782461c92db775e262d6ed7010cbf7fab24c4be193085b9fb
[INFO] running `Command { std: "docker" "start" "-a" "9602fd47f6f4efb782461c92db775e262d6ed7010cbf7fab24c4be193085b9fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking futures-io v0.3.15
[INFO] [stderr]     Checking fastrand v1.4.1
[INFO] [stderr]     Checking async-lock v2.4.0
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking futures-lite v1.11.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.4
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking fd v0.2.3
[INFO] [stderr]     Checking ipc-queue v0.1.0 (/opt/rustwide/workdir/ipc-queue)
[INFO] [stderr]     Checking shm_open_anonymous v1.0.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.4
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking crossbeam-queue v0.3.1
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking async-executor v1.4.1
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking crossbeam v0.8.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]     Checking value-bag v1.0.0-alpha.6
[INFO] [stderr]     Checking polling v2.0.3
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking async-io v1.4.1
[INFO] [stderr]     Checking async-global-executor v2.0.2
[INFO] [stderr]     Checking async-std v1.9.0
[INFO] [stderr]     Checking fdpass v0.1.0 (/opt/rustwide/workdir/fdpass-rs)
[INFO] [stderr]     Checking memenpsf v0.1.0 (/opt/rustwide/workdir/memenpsf)
[INFO] [stdout] warning: unused import: `net::Shutdown`
[INFO] [stdout]  --> memenpsf/src/lib.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     net::Shutdown,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::distributions::uniform::UniformChar`
[INFO] [stdout]   --> memenpsf/src/lib.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use rand::distributions::uniform::UniformChar;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `net::Shutdown`
[INFO] [stdout]  --> memenpsf/src/lib.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     net::Shutdown,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::distributions::uniform::UniformChar`
[INFO] [stdout]   --> memenpsf/src/lib.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use rand::distributions::uniform::UniformChar;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> memenpsf/src/lib.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 8 |     io::{self, Read, Result, Write},
[INFO] [stdout]   |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> memenpsf/src/lib.rs:8:30
[INFO] [stdout]   |
[INFO] [stdout] 8 |     io::{self, Read, Result, Write},
[INFO] [stdout]   |                              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> memenpsf/src/lib.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 8 |     io::{self, Read, Result, Write},
[INFO] [stdout]   |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> memenpsf/src/lib.rs:8:30
[INFO] [stdout]   |
[INFO] [stdout] 8 |     io::{self, Read, Result, Write},
[INFO] [stdout]   |                              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.32s
[INFO] running `Command { std: "docker" "inspect" "9602fd47f6f4efb782461c92db775e262d6ed7010cbf7fab24c4be193085b9fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9602fd47f6f4efb782461c92db775e262d6ed7010cbf7fab24c4be193085b9fb", kill_on_drop: false }`
[INFO] [stdout] 9602fd47f6f4efb782461c92db775e262d6ed7010cbf7fab24c4be193085b9fb