[INFO] fetching crate qtmon 0.1.1...
[INFO] documenting qtmon-0.1.1 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate qtmon 0.1.1 into /workspace/builds/worker-117/source
[INFO] validating manifest of crates.io crate qtmon 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 qtmon 0.1.1
[INFO] finished tweaking crates.io crate qtmon 0.1.1
[INFO] tweaked toml for crates.io crate qtmon 0.1.1 written to /workspace/builds/worker-117/source/Cargo.toml
[INFO] crate crates.io crate qtmon 0.1.1 already has a lockfile, it will not be regenerated
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/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] f45310d419c2979a037721659b69ebd903c98a162d8a57501d87108a2adcabb1
[INFO] running `Command { std: "docker" "start" "-a" "f45310d419c2979a037721659b69ebd903c98a162d8a57501d87108a2adcabb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f45310d419c2979a037721659b69ebd903c98a162d8a57501d87108a2adcabb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f45310d419c2979a037721659b69ebd903c98a162d8a57501d87108a2adcabb1", kill_on_drop: false }`
[INFO] [stdout] f45310d419c2979a037721659b69ebd903c98a162d8a57501d87108a2adcabb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/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] 91e0828d6aba62bf667436ce296990e547ac15bbec7764738744b141b920af2a
[INFO] running `Command { std: "docker" "start" "-a" "91e0828d6aba62bf667436ce296990e547ac15bbec7764738744b141b920af2a", 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 v0.2.80
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.50
[INFO] [stderr]    Compiling cc v1.0.65
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking once_cell v1.5.2
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[INFO] [stderr]    Compiling typenum v1.12.0
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[INFO] [stderr]     Checking futures-sink v0.3.8
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[INFO] [stderr]     Checking futures-io v0.3.8
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling native-tls v0.2.6
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling encoding_rs v0.8.26
[INFO] [stderr]     Checking cpuid-bool v0.1.2
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[INFO] [stderr]     Checking iovec v0.1.4
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[INFO] [stderr]     Checking atty v0.2.14
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[INFO] [stderr]    Compiling darling_core v0.10.2
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[INFO] [stderr]    Compiling pin-project-internal v1.0.2
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[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
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[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking tokio-util v0.3.1
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[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking ron v0.6.2
[INFO] [stderr]     Checking serde_with v1.6.0
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking rustbreak v2.0.0
[INFO] [stderr]     Checking flexi_logger v0.16.2
[INFO] [stderr]     Checking hyper v0.13.9
[INFO] [stderr]     Checking hyper-rustls v0.21.0
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking warp v0.2.5
[INFO] [stderr]     Checking reqwest v0.10.9
[INFO] [stderr]     Checking questrade-rs v0.1.1
[INFO] [stderr]  Documenting qtmon v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(drain_filter)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `qtmon`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name qtmon src/main.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern chrono=/opt/rustwide/target/debug/deps/libchrono-0311e23297fbec4b.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-68376974c16f2714.rmeta --extern dirs=/opt/rustwide/target/debug/deps/libdirs-b131d081fd1fa76f.rmeta --extern flexi_logger=/opt/rustwide/target/debug/deps/libflexi_logger-0a52f145478afcdb.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-c051095d70aab061.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-ad9dab5804e289b3.rmeta --extern questrade_rs=/opt/rustwide/target/debug/deps/libquestrade_rs-8d7c50e49282c889.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-57cbf0f765ff5ab6.rmeta --extern ron=/opt/rustwide/target/debug/deps/libron-9f76742976d07ebf.rmeta --extern rustbreak=/opt/rustwide/target/debug/deps/librustbreak-69b9c6781fadd0c7.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-2cb2ef739f70d9c7.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-f9bee74214a0df27.rmeta --extern warp=/opt/rustwide/target/debug/deps/libwarp-7fce02d3b1035b4e.rmeta --cap-lints=warn --crate-version 0.1.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "91e0828d6aba62bf667436ce296990e547ac15bbec7764738744b141b920af2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91e0828d6aba62bf667436ce296990e547ac15bbec7764738744b141b920af2a", kill_on_drop: false }`
[INFO] [stdout] 91e0828d6aba62bf667436ce296990e547ac15bbec7764738744b141b920af2a
