[INFO] fetching crate self_update 0.39.0...
[INFO] checking self_update-0.39.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate self_update 0.39.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate self_update 0.39.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate self_update 0.39.0
[INFO] finished tweaking crates.io crate self_update 0.39.0
[INFO] tweaked toml for crates.io crate self_update 0.39.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate self_update 0.39.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cpufeatures v0.2.10
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[INFO] [stderr]   Downloaded ed25519-dalek v2.0.0
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[INFO] [stderr]   Downloaded curve25519-dalek v4.1.1
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e499e39d49fcf8159a150037dff54c426b0596a877797f5b8fb8d4fd82cd2ea3
[INFO] running `Command { std: "docker" "start" "-a" "e499e39d49fcf8159a150037dff54c426b0596a877797f5b8fb8d4fd82cd2ea3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e499e39d49fcf8159a150037dff54c426b0596a877797f5b8fb8d4fd82cd2ea3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e499e39d49fcf8159a150037dff54c426b0596a877797f5b8fb8d4fd82cd2ea3", kill_on_drop: false }`
[INFO] [stdout] e499e39d49fcf8159a150037dff54c426b0596a877797f5b8fb8d4fd82cd2ea3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 788b85bd3763010754643b32bf8daa3030d46e1bd01a16085d69af89796a0c0e
[INFO] running `Command { std: "docker" "start" "-a" "788b85bd3763010754643b32bf8daa3030d46e1bd01a16085d69af89796a0c0e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling cc v1.0.71
[INFO] [stderr]    Compiling pkg-config v0.3.22
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling tokio v1.13.0
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]     Checking futures-sink v0.3.17
[INFO] [stderr]     Checking futures-io v0.3.17
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]     Checking tinyvec v1.5.0
[INFO] [stderr]     Checking openssl-probe v0.1.4
[INFO] [stderr]    Compiling rustix v0.38.11
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking httpdate v1.0.1
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[INFO] [stderr]    Compiling serde_json v1.0.69
[INFO] [stderr]    Compiling portable-atomic v0.3.19
[INFO] [stderr]    Compiling encoding_rs v0.8.29
[INFO] [stderr]     Checking regex-syntax v0.6.25
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[INFO] [stderr]     Checking fastrand v2.0.0
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]    Compiling semver v1.0.16
[INFO] [stderr]    Compiling self_update v0.39.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking quick-xml v0.23.1
[INFO] [stderr]     Checking urlencoding v2.1.2
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[INFO] [stderr]     Checking serde_urlencoded v0.7.0
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[INFO] [stderr]     Checking reqwest v0.11.6
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]  --> src/backends/gitea.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | use reqwest::{self, header};
[INFO] [stdout]   |               ^^^^ the item `reqwest` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]  --> src/backends/github.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | use reqwest::{self, header};
[INFO] [stdout]   |               ^^^^ the item `reqwest` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]  --> src/backends/gitlab.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | use reqwest::{self, header};
[INFO] [stdout]   |               ^^^^ the item `reqwest` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]  --> src/update.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use reqwest::{self, header};
[INFO] [stdout]   |               ^^^^ the item `reqwest` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]  --> src/backends/gitea.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | use reqwest::{self, header};
[INFO] [stdout]   |               ^^^^ the item `reqwest` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]  --> src/backends/github.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | use reqwest::{self, header};
[INFO] [stdout]   |               ^^^^ the item `reqwest` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]  --> src/backends/gitlab.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | use reqwest::{self, header};
[INFO] [stdout]   |               ^^^^ the item `reqwest` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]  --> src/update.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use reqwest::{self, header};
[INFO] [stdout]   |               ^^^^ the item `reqwest` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `archive_file_path`
[INFO] [stdout]     --> src/lib.rs:1054:13
[INFO] [stdout]      |
[INFO] [stdout] 1054 |         let archive_file_path = archive_file_path.as_ref();
[INFO] [stdout]      |             ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_archive_file_path`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `archive_file`
[INFO] [stdout]     --> src/lib.rs:1050:13
[INFO] [stdout]      |
[INFO] [stdout] 1050 |         mut archive_file: fs::File,
[INFO] [stdout]      |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_archive_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/lib.rs:1050:9
[INFO] [stdout]      |
[INFO] [stdout] 1050 |         mut archive_file: fs::File,
[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: function `test_extract_into` is never used
[INFO] [stdout]    --> src/lib.rs:985:8
[INFO] [stdout]     |
[INFO] [stdout] 985 |     fn test_extract_into(tmpfile_prefix: &str, src_archive_path: &str, archive_kind: ArchiveKind) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_extract_file` is never used
[INFO] [stdout]     --> src/lib.rs:1016:8
[INFO] [stdout]      |
[INFO] [stdout] 1016 |     fn test_extract_file(tmpfile_prefix: &str, src_archive_path: &str, archive_kind: ArchiveKind) {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_test_archive` is never used
[INFO] [stdout]     --> src/lib.rs:1049:8
[INFO] [stdout]      |
[INFO] [stdout] 1049 |     fn build_test_archive<T: AsRef<Path>>(
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.77s
[INFO] running `Command { std: "docker" "inspect" "788b85bd3763010754643b32bf8daa3030d46e1bd01a16085d69af89796a0c0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "788b85bd3763010754643b32bf8daa3030d46e1bd01a16085d69af89796a0c0e", kill_on_drop: false }`
[INFO] [stdout] 788b85bd3763010754643b32bf8daa3030d46e1bd01a16085d69af89796a0c0e