[INFO] fetching crate dotfiles-rs 0.2.0...
[INFO] checking dotfiles-rs-0.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate dotfiles-rs 0.2.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate dotfiles-rs 0.2.0 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 dotfiles-rs 0.2.0
[INFO] finished tweaking crates.io crate dotfiles-rs 0.2.0
[INFO] tweaked toml for crates.io crate dotfiles-rs 0.2.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate dotfiles-rs 0.2.0 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] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded textwrap v0.16.0
[INFO] [stderr]   Downloaded cargo-yaml v3.0.0
[INFO] [stderr]   Downloaded memchr v0.1.11
[INFO] [stderr]   Downloaded thread-id v2.0.0
[INFO] [stderr]   Downloaded strsim v0.5.2
[INFO] [stderr]   Downloaded termcolor v1.3.0
[INFO] [stderr]   Downloaded unsafe-libyaml v0.2.9
[INFO] [stderr]   Downloaded regex-syntax v0.3.9
[INFO] [stderr]   Downloaded regex v0.1.80
[INFO] [stderr]   Downloaded aho-corasick v0.5.3
[INFO] [stderr]   Downloaded thread_local v0.2.7
[INFO] [stderr]   Downloaded utf8-ranges v0.1.3
[INFO] [stderr]   Downloaded docopt v0.6.86
[INFO] [stderr]   Downloaded rustc-serialize v0.3.24
[INFO] [stderr]   Downloaded toml v0.2.1
[INFO] [stderr]   Downloaded yaml-rust v0.3.5
[INFO] [stderr]   Downloaded git2 v0.14.4
[INFO] [stderr]   Downloaded libgit2-sys v0.13.5+1.4.5
[INFO] [stderr]   Downloaded serde_yaml v0.9.27
[INFO] [stderr]   Downloaded openssl-sys v0.9.95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] db7a48b23ffc6d15958e210bb41559c9983402bdf5af24a1f497621d3acd0ef5
[INFO] running `Command { std: "docker" "start" "-a" "db7a48b23ffc6d15958e210bb41559c9983402bdf5af24a1f497621d3acd0ef5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db7a48b23ffc6d15958e210bb41559c9983402bdf5af24a1f497621d3acd0ef5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db7a48b23ffc6d15958e210bb41559c9983402bdf5af24a1f497621d3acd0ef5", kill_on_drop: false }`
[INFO] [stdout] db7a48b23ffc6d15958e210bb41559c9983402bdf5af24a1f497621d3acd0ef5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] b4cfd37f0474bdfa8e3cb0b71b3f9eb1d8c2981fa77de383dddba3acea1a9a84
[INFO] running `Command { std: "docker" "start" "-a" "b4cfd37f0474bdfa8e3cb0b71b3f9eb1d8c2981fa77de383dddba3acea1a9a84", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr] warning: dotfiles-rs v0.2.0 (/opt/rustwide/workdir) ignoring invalid dependency `cargo-yaml` which is missing a lib target
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling serde v1.0.192
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking os_str_bytes v6.6.1
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking termcolor v1.3.0
[INFO] [stderr]     Checking textwrap v0.16.0
[INFO] [stderr]     Checking unsafe-libyaml v0.2.9
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]     Checking url v2.4.1
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]    Compiling jobserver v0.1.27
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking clap v3.2.25
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.192
[INFO] [stderr]    Compiling libz-sys v1.1.12
[INFO] [stderr]    Compiling openssl-sys v0.9.95
[INFO] [stderr]    Compiling libssh2-sys v0.2.23
[INFO] [stderr]    Compiling libgit2-sys v0.13.5+1.4.5
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking env_logger v0.9.3
[INFO] [stderr]     Checking git2 v0.14.4
[INFO] [stderr]     Checking serde_yaml v0.9.27
[INFO] [stderr]     Checking dotfiles-rs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]  --> src/cli.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::string::String;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `String` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]  --> src/cli.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::string::String;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `String` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]  --> src/path.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::string::String;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `String` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]  --> src/path.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::string::String;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `String` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::string::String;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `String` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::string::String;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `String` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.38s
[INFO] running `Command { std: "docker" "inspect" "b4cfd37f0474bdfa8e3cb0b71b3f9eb1d8c2981fa77de383dddba3acea1a9a84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4cfd37f0474bdfa8e3cb0b71b3f9eb1d8c2981fa77de383dddba3acea1a9a84", kill_on_drop: false }`
[INFO] [stdout] b4cfd37f0474bdfa8e3cb0b71b3f9eb1d8c2981fa77de383dddba3acea1a9a84