[INFO] fetching crate immutable_string 0.1.1...
[INFO] testing immutable_string-0.1.1 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate immutable_string 0.1.1 into /workspace/builds/worker-23/source
[INFO] validating manifest of crates.io crate immutable_string 0.1.1 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate immutable_string 0.1.1
[INFO] finished tweaking crates.io crate immutable_string 0.1.1
[INFO] tweaked toml for crates.io crate immutable_string 0.1.1 written to /workspace/builds/worker-23/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c27049bc3caea4294c307359f579ce05576bdbfe5725a71566e4ea4558519538
[INFO] running `Command { std: "docker" "start" "-a" "c27049bc3caea4294c307359f579ce05576bdbfe5725a71566e4ea4558519538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c27049bc3caea4294c307359f579ce05576bdbfe5725a71566e4ea4558519538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c27049bc3caea4294c307359f579ce05576bdbfe5725a71566e4ea4558519538", kill_on_drop: false }`
[INFO] [stdout] c27049bc3caea4294c307359f579ce05576bdbfe5725a71566e4ea4558519538
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6eafc189e6e90cdc3b54c98710e22bed83eeb779e2f4374986095b541f09408f
[INFO] running `Command { std: "docker" "start" "-a" "6eafc189e6e90cdc3b54c98710e22bed83eeb779e2f4374986095b541f09408f", kill_on_drop: false }`
[INFO] [stderr]    Compiling weak-table v0.3.2
[INFO] [stderr]    Compiling immutable_string v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.74s
[INFO] running `Command { std: "docker" "inspect" "6eafc189e6e90cdc3b54c98710e22bed83eeb779e2f4374986095b541f09408f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6eafc189e6e90cdc3b54c98710e22bed83eeb779e2f4374986095b541f09408f", kill_on_drop: false }`
[INFO] [stdout] 6eafc189e6e90cdc3b54c98710e22bed83eeb779e2f4374986095b541f09408f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66f1d1508f0e378f4831d6c02a50ea7567477b6c1bfd26a67cd536460c0a235d
[INFO] running `Command { std: "docker" "start" "-a" "66f1d1508f0e378f4831d6c02a50ea7567477b6c1bfd26a67cd536460c0a235d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling immutable_string v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.85s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/immutable_string-4457b08ab0bc2f40)
[INFO] running `Command { std: "docker" "inspect" "66f1d1508f0e378f4831d6c02a50ea7567477b6c1bfd26a67cd536460c0a235d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66f1d1508f0e378f4831d6c02a50ea7567477b6c1bfd26a67cd536460c0a235d", kill_on_drop: false }`
[INFO] [stdout] 66f1d1508f0e378f4831d6c02a50ea7567477b6c1bfd26a67cd536460c0a235d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1fe681e55104e4566194ba818ff3ff0c24a1c912debd03ed6cc57be1626c068f
[INFO] running `Command { std: "docker" "start" "-a" "1fe681e55104e4566194ba818ff3ff0c24a1c912debd03ed6cc57be1626c068f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.99s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/immutable_string-4457b08ab0bc2f40)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::display ... ok
[INFO] [stdout] test tests::iter_collect ... ok
[INFO] [stdout] test tests::two_insertion_sharing ... ok
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests immutable_string
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - ImmutableString::use_count (line 37) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.68s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1fe681e55104e4566194ba818ff3ff0c24a1c912debd03ed6cc57be1626c068f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fe681e55104e4566194ba818ff3ff0c24a1c912debd03ed6cc57be1626c068f", kill_on_drop: false }`
[INFO] [stdout] 1fe681e55104e4566194ba818ff3ff0c24a1c912debd03ed6cc57be1626c068f