[INFO] fetching crate the_rock 0.4.0...
[INFO] testing the_rock-0.4.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate the_rock 0.4.0 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate the_rock 0.4.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate the_rock 0.4.0
[INFO] finished tweaking crates.io crate the_rock 0.4.0
[INFO] tweaked toml for crates.io crate the_rock 0.4.0 written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] crate crates.io crate the_rock 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 618aa62aa6c345120e89d945fce7ba361e3276f88f63ee5634417f5b06b73860
[INFO] running `Command { std: "docker" "start" "-a" "618aa62aa6c345120e89d945fce7ba361e3276f88f63ee5634417f5b06b73860", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "618aa62aa6c345120e89d945fce7ba361e3276f88f63ee5634417f5b06b73860", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "618aa62aa6c345120e89d945fce7ba361e3276f88f63ee5634417f5b06b73860", kill_on_drop: false }`
[INFO] [stdout] 618aa62aa6c345120e89d945fce7ba361e3276f88f63ee5634417f5b06b73860
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10bf706f9370d9b08359002121ec6160b1f214873d6410ae2bc864a8e2b49726
[INFO] running `Command { std: "docker" "start" "-a" "10bf706f9370d9b08359002121ec6160b1f214873d6410ae2bc864a8e2b49726", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling libc v0.2.91
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling array-macro v1.0.5
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]    Compiling signal-hook v0.3.7
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling xi-unicode v0.3.0
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling rust-utils v0.2.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling ahash v0.6.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling term_size v0.3.2
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling ncurses v5.101.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling num v0.3.1
[INFO] [stderr]    Compiling the_rock v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Command`, `Stdio`, `path`
[INFO] [stdout]  --> build.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs, env, path, process::{Command,Stdio}};
[INFO] [stdout]   |                    ^^^^            ^^^^^^^ ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling enum-map-derive v0.4.6
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling enum-map v0.6.4
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling wasmer_enumset_derive v0.5.0
[INFO] [stderr]    Compiling wasmer_enumset v1.0.1
[INFO] [stderr]    Compiling cursive_core v0.2.2
[INFO] [stderr]    Compiling cursive v0.16.3
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.85s
[INFO] running `Command { std: "docker" "inspect" "10bf706f9370d9b08359002121ec6160b1f214873d6410ae2bc864a8e2b49726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10bf706f9370d9b08359002121ec6160b1f214873d6410ae2bc864a8e2b49726", kill_on_drop: false }`
[INFO] [stdout] 10bf706f9370d9b08359002121ec6160b1f214873d6410ae2bc864a8e2b49726
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db814d44d73b60a22f193652110511feba71846f0b69f423527d033689f46970
[INFO] running `Command { std: "docker" "start" "-a" "db814d44d73b60a22f193652110511feba71846f0b69f423527d033689f46970", kill_on_drop: false }`
[INFO] [stderr]    Compiling the_rock v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Command`, `Stdio`, `path`
[INFO] [stdout]  --> build.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs, env, path, process::{Command,Stdio}};
[INFO] [stdout]   |                    ^^^^            ^^^^^^^ ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.74s
[INFO] running `Command { std: "docker" "inspect" "db814d44d73b60a22f193652110511feba71846f0b69f423527d033689f46970", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db814d44d73b60a22f193652110511feba71846f0b69f423527d033689f46970", kill_on_drop: false }`
[INFO] [stdout] db814d44d73b60a22f193652110511feba71846f0b69f423527d033689f46970
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 29a8852884e99c352390b0a6638a5451c4a54e5ba27af264f86daf93a62c149d
[INFO] running `Command { std: "docker" "start" "-a" "29a8852884e99c352390b0a6638a5451c4a54e5ba27af264f86daf93a62c149d", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Command`, `Stdio`, `path`
[INFO] [stderr]  --> build.rs:1:20
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{fs, env, path, process::{Command,Stdio}};
[INFO] [stderr]   |                    ^^^^            ^^^^^^^ ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `the_rock` (build script) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/the_rock-faea368b641b79be)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "29a8852884e99c352390b0a6638a5451c4a54e5ba27af264f86daf93a62c149d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29a8852884e99c352390b0a6638a5451c4a54e5ba27af264f86daf93a62c149d", kill_on_drop: false }`
[INFO] [stdout] 29a8852884e99c352390b0a6638a5451c4a54e5ba27af264f86daf93a62c149d