[INFO] cloning repository https://github.com/dolph/gerrit-query
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dolph/gerrit-query" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdolph%2Fgerrit-query", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdolph%2Fgerrit-query'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bae847592d743eacad8ca0858f7fba3902c36c3d
[INFO] checking dolph/gerrit-query against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdolph%2Fgerrit-query" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dolph/gerrit-query on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dolph/gerrit-query
[INFO] finished tweaking git repo https://github.com/dolph/gerrit-query
[INFO] tweaked toml for git repo https://github.com/dolph/gerrit-query written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/dolph/gerrit-query already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-7/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 192563059a073bdfb6f1812549822aad45c3de011bba0c9473d62e84dd3b0841
[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" "192563059a073bdfb6f1812549822aad45c3de011bba0c9473d62e84dd3b0841", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "192563059a073bdfb6f1812549822aad45c3de011bba0c9473d62e84dd3b0841", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "192563059a073bdfb6f1812549822aad45c3de011bba0c9473d62e84dd3b0841", kill_on_drop: false }`
[INFO] [stdout] 192563059a073bdfb6f1812549822aad45c3de011bba0c9473d62e84dd3b0841
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6788c03c9d3f8108cc7f115f3379b5f296e1be75b8dbf71d08b0245176c6878
[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" "b6788c03c9d3f8108cc7f115f3379b5f296e1be75b8dbf71d08b0245176c6878", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking argparse v0.2.2
[INFO] [stderr]     Checking users v0.11.0
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking env_logger v0.8.1
[INFO] [stderr]     Checking gerrit-query v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `unwrap` found for unit type `()` in the current scope
[INFO] [stdout]   --> src/main.rs:18:24
[INFO] [stdout]    |
[INFO] [stdout] 18 |     env_logger::init().unwrap();
[INFO] [stdout]    |                        ^^^^^^ method not found in `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `unwrap` found for unit type `()` in the current scope
[INFO] [stdout]   --> src/main.rs:18:24
[INFO] [stdout]    |
[INFO] [stdout] 18 |     env_logger::init().unwrap();
[INFO] [stdout]    |                        ^^^^^^ method not found in `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `to_string` found for reference `&OsStr` in the current scope
[INFO] [stdout]    --> src/main.rs:32:43
[INFO] [stdout]     |
[INFO] [stdout] 32  |       options.gerrit_username = user.name().to_string();
[INFO] [stdout]     |                                             ^^^^^^^^^ help: there is an associated function with a similar name: `to_os_string`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the method `to_string` exists but the following trait bounds were not satisfied:
[INFO] [stdout]             `OsStr: std::fmt::Display`
[INFO] [stdout]             which is required by `OsStr: ToString`
[INFO] [stdout]             `&OsStr: std::fmt::Display`
[INFO] [stdout]             which is required by `&OsStr: ToString`
[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 E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gerrit-query`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0599]: no method named `to_string` found for reference `&OsStr` in the current scope
[INFO] [stdout]    --> src/main.rs:32:43
[INFO] [stdout]     |
[INFO] [stdout] 32  |       options.gerrit_username = user.name().to_string();
[INFO] [stdout]     |                                             ^^^^^^^^^ help: there is an associated function with a similar name: `to_os_string`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the method `to_string` exists but the following trait bounds were not satisfied:
[INFO] [stdout]             `OsStr: std::fmt::Display`
[INFO] [stdout]             which is required by `OsStr: ToString`
[INFO] [stdout]             `&OsStr: std::fmt::Display`
[INFO] [stdout]             which is required by `&OsStr: ToString`
[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 E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "b6788c03c9d3f8108cc7f115f3379b5f296e1be75b8dbf71d08b0245176c6878", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6788c03c9d3f8108cc7f115f3379b5f296e1be75b8dbf71d08b0245176c6878", kill_on_drop: false }`
[INFO] [stdout] b6788c03c9d3f8108cc7f115f3379b5f296e1be75b8dbf71d08b0245176c6878