[INFO] cloning repository https://github.com/bdejean/cmd_cache
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bdejean/cmd_cache" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbdejean%2Fcmd_cache", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbdejean%2Fcmd_cache'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 85a67a50460fa2becb2c697c8b90592fab61e3a1
[INFO] testing bdejean/cmd_cache against 1.75.0 for beta-1.76-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbdejean%2Fcmd_cache" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bdejean/cmd_cache on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bdejean/cmd_cache
[INFO] finished tweaking git repo https://github.com/bdejean/cmd_cache
[INFO] tweaked toml for git repo https://github.com/bdejean/cmd_cache written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/bdejean/cmd_cache already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_hc v0.2.0
[INFO] [stderr]   Downloaded rand_chacha v0.2.2
[INFO] [stderr]   Downloaded autocfg v1.0.0
[INFO] [stderr]   Downloaded rdrand v0.4.0
[INFO] [stderr]   Downloaded fuchsia-cprng v0.1.1
[INFO] [stderr]   Downloaded num-integer v0.1.43
[INFO] [stderr]   Downloaded rand_core v0.3.1
[INFO] [stderr]   Downloaded rand v0.3.23
[INFO] [stderr]   Downloaded rand_core v0.5.1
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.8
[INFO] [stderr]   Downloaded gcc v0.3.55
[INFO] [stderr]   Downloaded remove_dir_all v0.5.3
[INFO] [stderr]   Downloaded rand v0.4.6
[INFO] [stderr]   Downloaded chrono v0.4.11
[INFO] [stderr]   Downloaded libc v0.2.71
[INFO] [stderr]   Downloaded rand_core v0.4.2
[INFO] [stderr]   Downloaded wasi v0.9.0+wasi-snapshot-preview1
[INFO] [stderr]   Downloaded num-traits v0.2.12
[INFO] [stderr]   Downloaded tempfile v3.1.0
[INFO] [stderr]   Downloaded time v0.1.43
[INFO] [stderr]   Downloaded getrandom v0.1.14
[INFO] [stderr]   Downloaded rand v0.7.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd2e8f0dec756b2fffa633c7c28c885dfde7c9769d125dc77da833b6ae52bf66
[INFO] running `Command { std: "docker" "start" "-a" "bd2e8f0dec756b2fffa633c7c28c885dfde7c9769d125dc77da833b6ae52bf66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd2e8f0dec756b2fffa633c7c28c885dfde7c9769d125dc77da833b6ae52bf66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd2e8f0dec756b2fffa633c7c28c885dfde7c9769d125dc77da833b6ae52bf66", kill_on_drop: false }`
[INFO] [stdout] bd2e8f0dec756b2fffa633c7c28c885dfde7c9769d125dc77da833b6ae52bf66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7cc331732222ffc0cd0654ac4ba34c84ff1fa41b11c62af2c606b09985bf9a6
[INFO] running `Command { std: "docker" "start" "-a" "a7cc331732222ffc0cd0654ac4ba34c84ff1fa41b11c62af2c606b09985bf9a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling cmd_cache v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.80s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "a7cc331732222ffc0cd0654ac4ba34c84ff1fa41b11c62af2c606b09985bf9a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7cc331732222ffc0cd0654ac4ba34c84ff1fa41b11c62af2c606b09985bf9a6", kill_on_drop: false }`
[INFO] [stdout] a7cc331732222ffc0cd0654ac4ba34c84ff1fa41b11c62af2c606b09985bf9a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8594573bfc302447f5ee27124f1c1295dcfef07e33141189a5d1363c35b4a938
[INFO] running `Command { std: "docker" "start" "-a" "8594573bfc302447f5ee27124f1c1295dcfef07e33141189a5d1363c35b4a938", kill_on_drop: false }`
[INFO] [stderr]    Compiling cmd_cache v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `clean_env` is never used
[INFO] [stdout]    --> src/main.rs:160:8
[INFO] [stdout]     |
[INFO] [stdout] 160 |     fn clean_env(key: &str) -> Option<String> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `restore_env` is never used
[INFO] [stdout]    --> src/main.rs:170:8
[INFO] [stdout]     |
[INFO] [stdout] 170 |     fn restore_env(key: &str, value: Option<String>) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.19s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "8594573bfc302447f5ee27124f1c1295dcfef07e33141189a5d1363c35b4a938", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8594573bfc302447f5ee27124f1c1295dcfef07e33141189a5d1363c35b4a938", kill_on_drop: false }`
[INFO] [stdout] 8594573bfc302447f5ee27124f1c1295dcfef07e33141189a5d1363c35b4a938
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1a73d319381d8f03e200333d7f958c96476c2ae51240d4bb6864560feb3b09bd
[INFO] running `Command { std: "docker" "start" "-a" "1a73d319381d8f03e200333d7f958c96476c2ae51240d4bb6864560feb3b09bd", kill_on_drop: false }`
[INFO] [stderr] warning: function `clean_env` is never used
[INFO] [stderr]    --> src/main.rs:160:8
[INFO] [stderr]     |
[INFO] [stderr] 160 |     fn clean_env(key: &str) -> Option<String> {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `restore_env` is never used
[INFO] [stderr]    --> src/main.rs:170:8
[INFO] [stderr]     |
[INFO] [stderr] 170 |     fn restore_env(key: &str, value: Option<String>) {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `cmd_cache` (bin "cmd_cache" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/cmd_cache-4146a9dd7abcbff6)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test test::test_concat_args ... ok
[INFO] [stdout] test test::test_check_file ... ok
[INFO] [stdout] test test::test_hash ... ok
[INFO] [stdout] test test::test_get_max_days ... ok
[INFO] [stdout] test test::test_check_or_create_dir ... ok
[INFO] [stdout] test test::test_cmd_cache ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1a73d319381d8f03e200333d7f958c96476c2ae51240d4bb6864560feb3b09bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a73d319381d8f03e200333d7f958c96476c2ae51240d4bb6864560feb3b09bd", kill_on_drop: false }`
[INFO] [stdout] 1a73d319381d8f03e200333d7f958c96476c2ae51240d4bb6864560feb3b09bd