[INFO] fetching crate qrs 0.1.1...
[INFO] documenting qrs-0.1.1 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate qrs 0.1.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate qrs 0.1.1 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 qrs 0.1.1
[INFO] finished tweaking crates.io crate qrs 0.1.1
[INFO] tweaked toml for crates.io crate qrs 0.1.1 written to /workspace/builds/worker-7/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] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded c_linked_list v1.1.1
[INFO] [stderr]   Downloaded image v0.12.4
[INFO] [stderr]   Downloaded derive-error-chain v0.10.1
[INFO] [stderr]   Downloaded png v0.6.2
[INFO] [stderr]   Downloaded get_if_addrs-sys v0.1.1
[INFO] [stderr]   Downloaded rocket_contrib v0.2.11
[INFO] [stderr]   Downloaded gif v0.9.2
[INFO] [stderr]   Downloaded rocket_codegen v0.2.11
[INFO] [stderr]   Downloaded pest v0.3.3
[INFO] [stderr]   Downloaded qrcode v0.2.1
[INFO] [stderr]   Downloaded handlebars v0.25.3
[INFO] [stderr]   Downloaded get_if_addrs v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] bf495814bee7dfb1a47f7acec1aeff96c8e1baba4ee8637a829fb537fc892020
[INFO] running `Command { std: "docker" "start" "-a" "bf495814bee7dfb1a47f7acec1aeff96c8e1baba4ee8637a829fb537fc892020", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf495814bee7dfb1a47f7acec1aeff96c8e1baba4ee8637a829fb537fc892020", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf495814bee7dfb1a47f7acec1aeff96c8e1baba4ee8637a829fb537fc892020", kill_on_drop: false }`
[INFO] [stdout] bf495814bee7dfb1a47f7acec1aeff96c8e1baba4ee8637a829fb537fc892020
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "RUSTDOCFLAGS=--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" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1685f86932be60d5e059f246e88d99afbfc14fc38276d530d1cb5fb666d1800
[INFO] running `Command { std: "docker" "start" "-a" "e1685f86932be60d5e059f246e88d99afbfc14fc38276d530d1cb5fb666d1800", 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] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling yansi v0.3.4
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]     Checking ucd-util v0.1.8
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]     Checking serde v0.9.15
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]     Checking inflate v0.1.1
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking gimli v0.25.0
[INFO] [stderr]    Compiling state v0.2.2
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking toml v0.2.1
[INFO] [stderr]     Checking pest v0.3.3
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking rustc-demangle v0.1.20
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking c_linked_list v1.1.1
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking tinyvec v1.3.1
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking object v0.26.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.5
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/state-0.2.2/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_fn)]
[INFO] [stdout]   |            ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/state-0.2.2/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_fn)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `state`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/state-0.2.2/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_fn)]
[INFO] [stdout]   |            ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/state-0.2.2/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_fn)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e1685f86932be60d5e059f246e88d99afbfc14fc38276d530d1cb5fb666d1800", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1685f86932be60d5e059f246e88d99afbfc14fc38276d530d1cb5fb666d1800", kill_on_drop: false }`
[INFO] [stdout] e1685f86932be60d5e059f246e88d99afbfc14fc38276d530d1cb5fb666d1800
