[INFO] fetching crate chicon 0.1.3...
[INFO] checking chicon-0.1.3 against try#81275a1445c7502a974118e0c69b795ab60be991 for pr-80243
[INFO] extracting crate chicon 0.1.3 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate chicon 0.1.3 on toolchain 81275a1445c7502a974118e0c69b795ab60be991
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate chicon 0.1.3
[INFO] finished tweaking crates.io crate chicon 0.1.3
[INFO] tweaked toml for crates.io crate chicon 0.1.3 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libssh2-sys v0.2.20
[INFO] [stderr]   Downloaded rusoto_s3 v0.39.0
[INFO] [stderr]   Downloaded tokio-process v0.2.5
[INFO] [stderr]   Downloaded tokio-signal v0.2.9
[INFO] [stderr]   Downloaded rusoto_credential v0.39.0
[INFO] [stderr]   Downloaded rusoto_core v0.39.0
[INFO] [stderr]   Downloaded osauth v0.2.5
[INFO] [stderr]   Downloaded ssh2 v0.3.3
[INFO] [stderr]   Downloaded osproto v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8e544892c67e0d2335529d7c7f2820d0b730cd2763b280609999c3b9fcac6837
[INFO] running `Command { std: "docker" "start" "-a" "8e544892c67e0d2335529d7c7f2820d0b730cd2763b280609999c3b9fcac6837", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e544892c67e0d2335529d7c7f2820d0b730cd2763b280609999c3b9fcac6837", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e544892c67e0d2335529d7c7f2820d0b730cd2763b280609999c3b9fcac6837", kill_on_drop: false }`
[INFO] [stdout] 8e544892c67e0d2335529d7c7f2820d0b730cd2763b280609999c3b9fcac6837
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 879477ef81028a5e5d7cbb2d0883a102af62929034449e33f8a15aab6e9eb2ca
[INFO] running `Command { std: "docker" "start" "-a" "879477ef81028a5e5d7cbb2d0883a102af62929034449e33f8a15aab6e9eb2ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]     Checking shlex v0.1.1
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking md5 v0.3.8
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling libssh2-sys v0.2.20
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]    Compiling rusoto_core v0.39.0
[INFO] [stderr]     Checking xml-rs v0.7.0
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]     Checking url_serde v0.2.0
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking digest v0.7.6
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[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking parking_lot v0.9.0
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[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking osproto v0.1.2
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-signal v0.2.9
[INFO] [stderr]     Checking tokio-process v0.2.5
[INFO] [stderr]     Checking tokio v0.1.22
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[INFO] [stderr]     Checking hyper v0.12.35
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[INFO] [stderr]     Checking rusoto_credential v0.39.0
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[INFO] [stderr]     Checking rusoto_s3 v0.39.0
[INFO] [stderr]     Checking osauth v0.2.5
[INFO] [stderr]     Checking chicon v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/mem.rs:328:13
[INFO] [stdout]     |
[INFO] [stdout] 328 |         let mut cloned_content: Vec<u8>;
[INFO] [stdout]     |             ----^^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/mem.rs:328:13
[INFO] [stdout]     |
[INFO] [stdout] 328 |         let mut cloned_content: Vec<u8>;
[INFO] [stdout]     |             ----^^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 03s
[INFO] running `Command { std: "docker" "inspect" "879477ef81028a5e5d7cbb2d0883a102af62929034449e33f8a15aab6e9eb2ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "879477ef81028a5e5d7cbb2d0883a102af62929034449e33f8a15aab6e9eb2ca", kill_on_drop: false }`
[INFO] [stdout] 879477ef81028a5e5d7cbb2d0883a102af62929034449e33f8a15aab6e9eb2ca