[INFO] fetching crate did_doc 0.3.1...
[INFO] checking did_doc-0.3.1 against master#a836d9b6413d9d593be6c09463ff8c4c70e56599 for pr-84037
[INFO] extracting crate did_doc 0.3.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate did_doc 0.3.1 on toolchain a836d9b6413d9d593be6c09463ff8c4c70e56599
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate did_doc 0.3.1
[INFO] finished tweaking crates.io crate did_doc 0.3.1
[INFO] tweaked toml for crates.io crate did_doc 0.3.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48da0ab67630d5812928f3cdc9a28c9ec3bedd854f442a6d1c099a0099b19615
[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" "48da0ab67630d5812928f3cdc9a28c9ec3bedd854f442a6d1c099a0099b19615", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48da0ab67630d5812928f3cdc9a28c9ec3bedd854f442a6d1c099a0099b19615", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48da0ab67630d5812928f3cdc9a28c9ec3bedd854f442a6d1c099a0099b19615", kill_on_drop: false }`
[INFO] [stdout] 48da0ab67630d5812928f3cdc9a28c9ec3bedd854f442a6d1c099a0099b19615
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "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] ff2f6f7dc7558f3488324e4cfab8484f181cc6b46356144081b88c32a4b68bd8
[INFO] running `Command { std: "docker" "start" "-a" "ff2f6f7dc7558f3488324e4cfab8484f181cc6b46356144081b88c32a4b68bd8", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking strum v0.15.0
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking backtrace v0.3.58
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]    Compiling strum_macros v0.15.0
[INFO] [stderr]     Checking did_doc v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/fields/publickey.rs:106:10
[INFO] [stdout]     |
[INFO] [stdout] 106 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/fields/publickey.rs:106:10
[INFO] [stdout]     |
[INFO] [stdout] 106 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:51:22
[INFO] [stdout]    |
[INFO] [stdout] 51 |         for cause in Fail::iter_chain(&self.inner) {
[INFO] [stdout]    |                      ^^^^ help: use `dyn`: `<dyn Fail>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:51:22
[INFO] [stdout]    |
[INFO] [stdout] 51 |         for cause in Fail::iter_chain(&self.inner) {
[INFO] [stdout]    |                      ^^^^ help: use `dyn`: `<dyn Fail>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.78s
[INFO] running `Command { std: "docker" "inspect" "ff2f6f7dc7558f3488324e4cfab8484f181cc6b46356144081b88c32a4b68bd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff2f6f7dc7558f3488324e4cfab8484f181cc6b46356144081b88c32a4b68bd8", kill_on_drop: false }`
[INFO] [stdout] ff2f6f7dc7558f3488324e4cfab8484f181cc6b46356144081b88c32a4b68bd8