[INFO] fetching crate quotemeta 0.1.1...
[INFO] testing quotemeta-0.1.1 against 1.59.0 for beta-1.60-1
[INFO] extracting crate quotemeta 0.1.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate quotemeta 0.1.1 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate quotemeta 0.1.1
[INFO] finished tweaking crates.io crate quotemeta 0.1.1
[INFO] tweaked toml for crates.io crate quotemeta 0.1.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate quotemeta 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f2b367914712268c0b36000cdf4789f75831403296696766561e6ed5297a262e
[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" "f2b367914712268c0b36000cdf4789f75831403296696766561e6ed5297a262e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2b367914712268c0b36000cdf4789f75831403296696766561e6ed5297a262e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2b367914712268c0b36000cdf4789f75831403296696766561e6ed5297a262e", kill_on_drop: false }`
[INFO] [stdout] f2b367914712268c0b36000cdf4789f75831403296696766561e6ed5297a262e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23e9470a7b3f5eb984bab9cd4bd3b520804a828d1bf00c994184b3691c9e3c51
[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" "23e9470a7b3f5eb984bab9cd4bd3b520804a828d1bf00c994184b3691c9e3c51", kill_on_drop: false }`
[INFO] [stderr]    Compiling quotemeta v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "23e9470a7b3f5eb984bab9cd4bd3b520804a828d1bf00c994184b3691c9e3c51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23e9470a7b3f5eb984bab9cd4bd3b520804a828d1bf00c994184b3691c9e3c51", kill_on_drop: false }`
[INFO] [stdout] 23e9470a7b3f5eb984bab9cd4bd3b520804a828d1bf00c994184b3691c9e3c51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52c15555026c93ccb6c043c300ba7574e7a5cd2ce00b99daf5ba3dac93d19327
[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" "52c15555026c93ccb6c043c300ba7574e7a5cd2ce00b99daf5ba3dac93d19327", kill_on_drop: false }`
[INFO] [stderr]    Compiling quotemeta v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `borrow::Cow`
[INFO] [stdout]  --> tests/tests.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     borrow::Cow,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `unquotemeta_types`
[INFO] [stdout]   --> tests/tests.rs:45:18
[INFO] [stdout]    |
[INFO] [stdout] 45 |     macro_rules! unquotemeta_types {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.69s
[INFO] running `Command { std: "docker" "inspect" "52c15555026c93ccb6c043c300ba7574e7a5cd2ce00b99daf5ba3dac93d19327", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52c15555026c93ccb6c043c300ba7574e7a5cd2ce00b99daf5ba3dac93d19327", kill_on_drop: false }`
[INFO] [stdout] 52c15555026c93ccb6c043c300ba7574e7a5cd2ce00b99daf5ba3dac93d19327
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 91617343a65457d8a31762f3629fcc38dcd1486e4885bf7ea04f7bb80eae188f
[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" "91617343a65457d8a31762f3629fcc38dcd1486e4885bf7ea04f7bb80eae188f", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `borrow::Cow`
[INFO] [stderr]  --> tests/tests.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     borrow::Cow,
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition: `unquotemeta_types`
[INFO] [stderr]   --> tests/tests.rs:45:18
[INFO] [stderr]    |
[INFO] [stderr] 45 |     macro_rules! unquotemeta_types {
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `quotemeta` (test "tests") generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/quotemeta-9112fabdb2502ef8)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-2af72639ae48d5b0)
[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] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_types ... ok
[INFO] [stdout] test quotemeta_unquotemeta ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests quotemeta
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:32:53
[INFO] [stderr]    |
[INFO] [stderr] 32 | #![cfg_attr(any(doc, feature = "unstable-doc-cfg"), feature(doc_auto_cfg))]
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "91617343a65457d8a31762f3629fcc38dcd1486e4885bf7ea04f7bb80eae188f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91617343a65457d8a31762f3629fcc38dcd1486e4885bf7ea04f7bb80eae188f", kill_on_drop: false }`
[INFO] [stdout] 91617343a65457d8a31762f3629fcc38dcd1486e4885bf7ea04f7bb80eae188f