[INFO] fetching crate immut_string 0.1.0...
[INFO] testing immut_string-0.1.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate immut_string 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate immut_string 0.1.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate immut_string 0.1.0
[INFO] finished tweaking crates.io crate immut_string 0.1.0
[INFO] tweaked toml for crates.io crate immut_string 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 106ed8dd7d7a543aa99903fe231257179b35e336c88929b3ec53fcb0e28b9681
[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" "106ed8dd7d7a543aa99903fe231257179b35e336c88929b3ec53fcb0e28b9681", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "106ed8dd7d7a543aa99903fe231257179b35e336c88929b3ec53fcb0e28b9681", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "106ed8dd7d7a543aa99903fe231257179b35e336c88929b3ec53fcb0e28b9681", kill_on_drop: false }`
[INFO] [stdout] 106ed8dd7d7a543aa99903fe231257179b35e336c88929b3ec53fcb0e28b9681
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17b6885ef2e2b127fc5c9dd08c2f144cb44dda9cfe665fe1bedf8d7d84cf6bd4
[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" "17b6885ef2e2b127fc5c9dd08c2f144cb44dda9cfe665fe1bedf8d7d84cf6bd4", kill_on_drop: false }`
[INFO] [stderr]    Compiling immut_string v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `Command { std: "docker" "inspect" "17b6885ef2e2b127fc5c9dd08c2f144cb44dda9cfe665fe1bedf8d7d84cf6bd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17b6885ef2e2b127fc5c9dd08c2f144cb44dda9cfe665fe1bedf8d7d84cf6bd4", kill_on_drop: false }`
[INFO] [stdout] 17b6885ef2e2b127fc5c9dd08c2f144cb44dda9cfe665fe1bedf8d7d84cf6bd4
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5730db97178097a4e680c9906c51f9855ff7ee4c29b3b8099b3a9471b67efaf
[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" "c5730db97178097a4e680c9906c51f9855ff7ee4c29b3b8099b3a9471b67efaf", kill_on_drop: false }`
[INFO] [stderr]    Compiling immut_string v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "c5730db97178097a4e680c9906c51f9855ff7ee4c29b3b8099b3a9471b67efaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5730db97178097a4e680c9906c51f9855ff7ee4c29b3b8099b3a9471b67efaf", kill_on_drop: false }`
[INFO] [stdout] c5730db97178097a4e680c9906c51f9855ff7ee4c29b3b8099b3a9471b67efaf
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c932a012f7fef5868d0a7cfddbfd023772b817aed1ede53db2fc55e7f692e2db
[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" "c932a012f7fef5868d0a7cfddbfd023772b817aed1ede53db2fc55e7f692e2db", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/immut_string-01c311ae366fabbd)
[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] [stderr]    Doc-tests immut_string
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/immut_string.rs - immut_string::ImmutString::add (line 97) ... ok
[INFO] [stdout] test src/immut_string.rs - immut_string::ImmutString (line 9) ... ok
[INFO] [stdout] test src/immut_string.rs - immut_string::ImmutString::add (line 141) ... ok
[INFO] [stdout] test src/immut_string.rs - immut_string::ImmutString::add (line 166) ... ok
[INFO] [stdout] test src/immut_string.rs - immut_string::ImmutString::add (line 191) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.43s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c932a012f7fef5868d0a7cfddbfd023772b817aed1ede53db2fc55e7f692e2db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c932a012f7fef5868d0a7cfddbfd023772b817aed1ede53db2fc55e7f692e2db", kill_on_drop: false }`
[INFO] [stdout] c932a012f7fef5868d0a7cfddbfd023772b817aed1ede53db2fc55e7f692e2db
