[INFO] fetching crate duma 0.1.0...
[INFO] checking duma-0.1.0 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] extracting crate duma 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate duma 0.1.0 on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate duma 0.1.0
[INFO] finished tweaking crates.io crate duma 0.1.0
[INFO] tweaked toml for crates.io crate duma 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ftp v3.0.1
[INFO] [stderr]   Downloaded mrq v0.1.0
[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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 420f7816729bfd9d17ca4b5c075cbb8d431f0a827a9ace842bc9227fcea8bb91
[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" "420f7816729bfd9d17ca4b5c075cbb8d431f0a827a9ace842bc9227fcea8bb91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "420f7816729bfd9d17ca4b5c075cbb8d431f0a827a9ace842bc9227fcea8bb91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "420f7816729bfd9d17ca4b5c075cbb8d431f0a827a9ace842bc9227fcea8bb91", kill_on_drop: false }`
[INFO] [stdout] 420f7816729bfd9d17ca4b5c075cbb8d431f0a827a9ace842bc9227fcea8bb91
[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=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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d8f04e9dd1d62b7ad397192017f539e76fbb6ad75d5adab73b978e4134cf734
[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" "3d8f04e9dd1d62b7ad397192017f539e76fbb6ad75d5adab73b978e4134cf734", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]     Checking spin v0.5.2
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[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]     Checking smallvec v1.4.2
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[INFO] [stderr]    Compiling serde v1.0.115
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[INFO] [stderr]     Checking rustc-demangle v0.1.16
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[INFO] [stderr]    Compiling serde_json v1.0.57
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[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking lock_api v0.4.1
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[INFO] [stderr]     Checking unicode-normalization v0.1.13
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[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
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[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking parking_lot_core v0.8.0
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[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.0
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[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking webpki v0.19.1
[INFO] [stderr]     Checking sct v0.5.0
[INFO] [stderr]     Checking tiny_http v0.6.2
[INFO] [stderr]     Checking ftp v3.0.1
[INFO] [stderr]     Checking webpki-roots v0.16.0
[INFO] [stderr]     Checking rustls v0.15.2
[INFO] [stderr]     Checking console v0.12.0
[INFO] [stderr]     Checking globset v0.4.5
[INFO] [stderr]     Checking console v0.7.7
[INFO] [stderr]     Checking predicates v1.0.5
[INFO] [stderr]     Checking ignore v0.4.16
[INFO] [stderr]     Checking indicatif v0.11.0
[INFO] [stderr]     Checking globwalk v0.5.0
[INFO] [stderr]     Checking assert_fs v0.11.3
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking mrq v0.1.0
[INFO] [stderr]     Checking duma v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking assert_cmd v0.11.1
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]  --> tests/server.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::sync::{Once, ONCE_INIT};
[INFO] [stdout]   |                       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> tests/server.rs:10:21
[INFO] [stdout]    |
[INFO] [stdout] 10 | static INIT: Once = ONCE_INIT;
[INFO] [stdout]    |                     ^^^^^^^^^ help: replace the use of the deprecated constant: `Once::new()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]  --> tests/server.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::sync::{Once, ONCE_INIT};
[INFO] [stdout]   |                       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> tests/server.rs:10:21
[INFO] [stdout]    |
[INFO] [stdout] 10 | static INIT: Once = ONCE_INIT;
[INFO] [stdout]    |                     ^^^^^^^^^ help: replace the use of the deprecated constant: `Once::new()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 31s
[INFO] running `Command { std: "docker" "inspect" "3d8f04e9dd1d62b7ad397192017f539e76fbb6ad75d5adab73b978e4134cf734", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d8f04e9dd1d62b7ad397192017f539e76fbb6ad75d5adab73b978e4134cf734", kill_on_drop: false }`
[INFO] [stdout] 3d8f04e9dd1d62b7ad397192017f539e76fbb6ad75d5adab73b978e4134cf734