[INFO] fetching crate mastring 0.2.0...
[INFO] testing mastring-0.2.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate mastring 0.2.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate mastring 0.2.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate mastring 0.2.0
[INFO] tweaked toml for crates.io crate mastring 0.2.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mastring 0.2.0 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mastring 0.2.0 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 02a0aa758d6e56e270d45c6f7d639fcad592494c839b9ebe2ae15d6f585040ea
[INFO] running `Command { std: "docker" "start" "-a" "02a0aa758d6e56e270d45c6f7d639fcad592494c839b9ebe2ae15d6f585040ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "02a0aa758d6e56e270d45c6f7d639fcad592494c839b9ebe2ae15d6f585040ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02a0aa758d6e56e270d45c6f7d639fcad592494c839b9ebe2ae15d6f585040ea", kill_on_drop: false }`
[INFO] [stdout] 02a0aa758d6e56e270d45c6f7d639fcad592494c839b9ebe2ae15d6f585040ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=forbid" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 66e86b10288a990f3821f8211b3435fd954ad1869aeb4aeea24615a9b60143cb
[INFO] running `Command { std: "docker" "start" "-a" "66e86b10288a990f3821f8211b3435fd954ad1869aeb4aeea24615a9b60143cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling mastring v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "66e86b10288a990f3821f8211b3435fd954ad1869aeb4aeea24615a9b60143cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66e86b10288a990f3821f8211b3435fd954ad1869aeb4aeea24615a9b60143cb", kill_on_drop: false }`
[INFO] [stdout] 66e86b10288a990f3821f8211b3435fd954ad1869aeb4aeea24615a9b60143cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=forbid" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] c401761d6036c1d4cfc761431f66c8627f963df911af2f8d12447875889715b1
[INFO] running `Command { std: "docker" "start" "-a" "c401761d6036c1d4cfc761431f66c8627f963df911af2f8d12447875889715b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling mastring v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.82s
[INFO] running `Command { std: "docker" "inspect" "c401761d6036c1d4cfc761431f66c8627f963df911af2f8d12447875889715b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c401761d6036c1d4cfc761431f66c8627f963df911af2f8d12447875889715b1", kill_on_drop: false }`
[INFO] [stdout] c401761d6036c1d4cfc761431f66c8627f963df911af2f8d12447875889715b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=forbid" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 566bcd4d2e30890e2a106a935724e99217b58ca1bfed662b81f408ffb9255cb8
[INFO] running `Command { std: "docker" "start" "-a" "566bcd4d2e30890e2a106a935724e99217b58ca1bfed662b81f408ffb9255cb8", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/mastring-6a7b0d89e1eedeb5)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_len_transmutation ... ok
[INFO] [stdout] test test_reserve_extra_internal ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/bytestring.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/bytestring-0b9ae8d58bddeb89)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test test_clear ... ok
[INFO] [stdout] test test_clone_and_drop ... ok
[INFO] [stdout] test test_debug ... ok
[INFO] [stdout] test test_deref ... ok
[INFO] [stdout] test test_deref_mut ... ok
[INFO] [stdout] test test_from_builder ... ok
[INFO] [stdout] test test_from_static ... ok
[INFO] [stdout] test test_add_and_eq ... ok
[INFO] [stdout] test test_capacity ... ok
[INFO] [stdout] test test_into_vec ... ok
[INFO] [stdout] test test_new ... ok
[INFO] [stdout] test test_from_slice ... ok
[INFO] [stdout] test test_from_vec ... ok
[INFO] [stdout] test test_get_mode ... ok
[INFO] [stdout] test test_reserve ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/bytestringbuilder.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/bytestringbuilder-f220c8eff74edca0)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test test_add_and_eq ... ok
[INFO] [stdout] test test_clone_and_drop ... ok
[INFO] [stdout] test test_clear ... ok
[INFO] [stdout] test test_debug ... ok
[INFO] [stdout] test test_deref ... ok
[INFO] [stdout] test test_capacity ... ok
[INFO] [stdout] test test_from_vec ... ok
[INFO] [stdout] test test_from_slice ... ok
[INFO] [stdout] test test_from_mabs ... ok
[INFO] [stdout] test test_reserve ... ok
[INFO] [stdout] test test_into_vec ... ok
[INFO] [stdout] test test_new ... ok
[INFO] [stdout] test test_deref_mut ... ok
[INFO] [stdout] test test_get_mode ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/string.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/string-3df978d03559caa6)
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test test_capacity ... ok
[INFO] [stdout] test test_add_and_eq ... ok
[INFO] [stdout] test test_as_mut_slice ... ok
[INFO] [stdout] test test_clear ... ok
[INFO] [stdout] test test_clone_and_drop ... ok
[INFO] [stdout] test test_debug ... ok
[INFO] [stdout] test test_deref_mut ... ok
[INFO] [stdout] test test_from_static ... ok
[INFO] [stdout] test test_from_utf8 ... ok
[INFO] [stdout] test test_from_utf8_unchecked ... ok
[INFO] [stdout] test test_deref ... ok
[INFO] [stdout] test test_from_utf8_lossy ... ok
[INFO] [stderr]      Running tests/stringbuilder.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/stringbuilder-4d7005d9e4e94d0d)
[INFO] [stdout] test test_from_builder ... ok
[INFO] [stdout] test test_display ... ok
[INFO] [stdout] test test_from_slice ... ok
[INFO] [stdout] test test_from_str ... ok
[INFO] [stdout] test test_get_mode ... ok
[INFO] [stdout] test test_into_bytes ... ok
[INFO] [stdout] test test_into_vec ... ok
[INFO] [stdout] test test_into_string ... ok
[INFO] [stdout] test test_new ... ok
[INFO] [stdout] test test_reserve ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 22 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test test_add_and_eq ... ok
[INFO] [stdout] test test_clone_and_drop ... ok
[INFO] [stdout] test test_display ... ok
[INFO] [stdout] test test_from_mas ... ok
[INFO] [stdout] test test_debug ... ok
[INFO] [stdout] test test_from_string ... ok
[INFO] [stdout] test test_from_slice ... ok
[INFO] [stdout] test test_deref_mut ... ok
[INFO] [stdout] test test_as_mut_slice ... ok
[INFO] [stdout] test test_from_utf8_lossy ... ok
[INFO] [stdout] test test_from_utf8_unchecked ... ok
[INFO] [stdout] test test_get_mode ... ok
[INFO] [stdout] test test_into_bytes ... ok
[INFO] [stdout] test test_into_string ... ok
[INFO] [stdout] test test_capacity ... ok
[INFO] [stdout] test test_into_vec ... ok
[INFO] [stdout] test test_clear ... ok
[INFO] [stdout] test test_new ... ok
[INFO] [stdout] test test_reserve ... ok
[INFO] [stdout] test test_from_utf8 ... ok
[INFO] [stdout] test test_deref ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "566bcd4d2e30890e2a106a935724e99217b58ca1bfed662b81f408ffb9255cb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "566bcd4d2e30890e2a106a935724e99217b58ca1bfed662b81f408ffb9255cb8", kill_on_drop: false }`
[INFO] [stdout] 566bcd4d2e30890e2a106a935724e99217b58ca1bfed662b81f408ffb9255cb8