[INFO] cloning repository https://github.com/the-cobalt/nothing
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/the-cobalt/nothing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthe-cobalt%2Fnothing", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthe-cobalt%2Fnothing'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0001bb02e05b0296933cb3709a6e68c77e6ba18a
[INFO] checking the-cobalt/nothing against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthe-cobalt%2Fnothing" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/the-cobalt/nothing on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/the-cobalt/nothing
[INFO] finished tweaking git repo https://github.com/the-cobalt/nothing
[INFO] tweaked toml for git repo https://github.com/the-cobalt/nothing written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/the-cobalt/nothing already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded log4rs v0.13.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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] 68ac4b6e8b731379bf6bad453ed3473f5a3ccbf93619e29d0645cc645c752731
[INFO] running `Command { std: "docker" "start" "-a" "68ac4b6e8b731379bf6bad453ed3473f5a3ccbf93619e29d0645cc645c752731", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68ac4b6e8b731379bf6bad453ed3473f5a3ccbf93619e29d0645cc645c752731", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68ac4b6e8b731379bf6bad453ed3473f5a3ccbf93619e29d0645cc645c752731", kill_on_drop: false }`
[INFO] [stdout] 68ac4b6e8b731379bf6bad453ed3473f5a3ccbf93619e29d0645cc645c752731
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0e368645577f2a8bda5acc34f660319b60510aaba38aa2c4c6271fceb3c9adb
[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" "b0e368645577f2a8bda5acc34f660319b60510aaba38aa2c4c6271fceb3c9adb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.78
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking rust-ini v0.13.0
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking instant v0.1.7
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking miniz_oxide v0.4.2
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking ordered-float v1.1.0
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking backtrace v0.3.51
[INFO] [stderr]     Checking flate2 v1.0.18
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking os_type v2.2.0
[INFO] [stderr]     Checking serde_test v0.8.23
[INFO] [stderr]     Checking linked-hash-map v0.3.0
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking serde-hjson v0.8.2
[INFO] [stderr]     Checking serde_json v1.0.58
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking serde-value v0.6.0
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking serde_yaml v0.8.13
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]     Checking config v0.9.3
[INFO] [stderr]     Checking human-panic v1.0.3
[INFO] [stderr]     Checking log4rs v0.13.0
[INFO] [stderr]     Checking nothing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `info`, `warn`
[INFO] [stdout]  --> src/main.rs:6:25
[INFO] [stdout]   |
[INFO] [stdout] 6 | use log::{debug, error, info, trace, warn, LevelFilter};
[INFO] [stdout]   |                         ^^^^         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `info`, `warn`
[INFO] [stdout]  --> src/main.rs:6:25
[INFO] [stdout]   |
[INFO] [stdout] 6 | use log::{debug, error, info, trace, warn, LevelFilter};
[INFO] [stdout]   |                         ^^^^         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `put_args`
[INFO] [stdout]   --> src/main.rs:71:17
[INFO] [stdout]    |
[INFO] [stdout] 71 |         ("put", put_args) => {
[INFO] [stdout]    |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_put_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `take_args`
[INFO] [stdout]   --> src/main.rs:74:18
[INFO] [stdout]    |
[INFO] [stdout] 74 |         ("take", take_args) => {
[INFO] [stdout]    |                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_take_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `check_args`
[INFO] [stdout]   --> src/main.rs:78:19
[INFO] [stdout]    |
[INFO] [stdout] 78 |         ("check", check_args) => {
[INFO] [stdout]    |                   ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_check_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `marker_args`
[INFO] [stdout]   --> src/main.rs:82:20
[INFO] [stdout]    |
[INFO] [stdout] 82 |         ("marker", marker_args) => {
[INFO] [stdout]    |                    ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_marker_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `info_args`
[INFO] [stdout]   --> src/main.rs:86:18
[INFO] [stdout]    |
[INFO] [stdout] 86 |         ("info", info_args) => {
[INFO] [stdout]    |                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_info_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `up_args`
[INFO] [stdout]   --> src/main.rs:90:16
[INFO] [stdout]    |
[INFO] [stdout] 90 |         ("up", up_args) => {
[INFO] [stdout]    |                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_up_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filed_args`
[INFO] [stdout]   --> src/main.rs:94:19
[INFO] [stdout]    |
[INFO] [stdout] 94 |         ("filed", filed_args) => {
[INFO] [stdout]    |                   ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filed_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `list_args`
[INFO] [stdout]   --> src/main.rs:98:18
[INFO] [stdout]    |
[INFO] [stdout] 98 |         ("list", list_args) => {
[INFO] [stdout]    |                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `look_args`
[INFO] [stdout]    --> src/main.rs:102:18
[INFO] [stdout]     |
[INFO] [stdout] 102 |         ("look", look_args) => {
[INFO] [stdout]     |                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_look_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `isrepo_args`
[INFO] [stdout]    --> src/main.rs:150:20
[INFO] [stdout]     |
[INFO] [stdout] 150 |         ("isrepo", isrepo_args) => {
[INFO] [stdout]     |                    ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_isrepo_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ver_args`
[INFO] [stdout]    --> src/main.rs:154:17
[INFO] [stdout]     |
[INFO] [stdout] 154 |         ("ver", ver_args) => {
[INFO] [stdout]     |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ver_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `put_args`
[INFO] [stdout]   --> src/main.rs:71:17
[INFO] [stdout]    |
[INFO] [stdout] 71 |         ("put", put_args) => {
[INFO] [stdout]    |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_put_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `take_args`
[INFO] [stdout]   --> src/main.rs:74:18
[INFO] [stdout]    |
[INFO] [stdout] 74 |         ("take", take_args) => {
[INFO] [stdout]    |                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_take_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `check_args`
[INFO] [stdout]   --> src/main.rs:78:19
[INFO] [stdout]    |
[INFO] [stdout] 78 |         ("check", check_args) => {
[INFO] [stdout]    |                   ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_check_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `marker_args`
[INFO] [stdout]   --> src/main.rs:82:20
[INFO] [stdout]    |
[INFO] [stdout] 82 |         ("marker", marker_args) => {
[INFO] [stdout]    |                    ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_marker_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `info_args`
[INFO] [stdout]   --> src/main.rs:86:18
[INFO] [stdout]    |
[INFO] [stdout] 86 |         ("info", info_args) => {
[INFO] [stdout]    |                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_info_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `up_args`
[INFO] [stdout]   --> src/main.rs:90:16
[INFO] [stdout]    |
[INFO] [stdout] 90 |         ("up", up_args) => {
[INFO] [stdout]    |                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_up_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filed_args`
[INFO] [stdout]   --> src/main.rs:94:19
[INFO] [stdout]    |
[INFO] [stdout] 94 |         ("filed", filed_args) => {
[INFO] [stdout]    |                   ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filed_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `list_args`
[INFO] [stdout]   --> src/main.rs:98:18
[INFO] [stdout]    |
[INFO] [stdout] 98 |         ("list", list_args) => {
[INFO] [stdout]    |                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `look_args`
[INFO] [stdout]    --> src/main.rs:102:18
[INFO] [stdout]     |
[INFO] [stdout] 102 |         ("look", look_args) => {
[INFO] [stdout]     |                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_look_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `isrepo_args`
[INFO] [stdout]    --> src/main.rs:150:20
[INFO] [stdout]     |
[INFO] [stdout] 150 |         ("isrepo", isrepo_args) => {
[INFO] [stdout]     |                    ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_isrepo_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ver_args`
[INFO] [stdout]    --> src/main.rs:154:17
[INFO] [stdout]     |
[INFO] [stdout] 154 |         ("ver", ver_args) => {
[INFO] [stdout]     |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ver_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.44s
[INFO] running `Command { std: "docker" "inspect" "b0e368645577f2a8bda5acc34f660319b60510aaba38aa2c4c6271fceb3c9adb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0e368645577f2a8bda5acc34f660319b60510aaba38aa2c4c6271fceb3c9adb", kill_on_drop: false }`
[INFO] [stdout] b0e368645577f2a8bda5acc34f660319b60510aaba38aa2c4c6271fceb3c9adb