[INFO] cloning repository https://github.com/dax/contextswitch
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dax/contextswitch" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdax%2Fcontextswitch", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdax%2Fcontextswitch'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cc20cdc0f219e034732cf976909da21815ca60b3
[INFO] testing dax/contextswitch/cc20cdc0f219e034732cf976909da21815ca60b3 against master#d7bd9cd469ff6871420007f091ef52fc32d2ca99 for pr-121417
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdax%2Fcontextswitch" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dax/contextswitch on toolchain d7bd9cd469ff6871420007f091ef52fc32d2ca99
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d7bd9cd469ff6871420007f091ef52fc32d2ca99" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dax/contextswitch
[INFO] finished tweaking git repo https://github.com/dax/contextswitch
[INFO] tweaked toml for git repo https://github.com/dax/contextswitch written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dax/contextswitch 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" "+d7bd9cd469ff6871420007f091ef52fc32d2ca99" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/dax/uikit-rs.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded configparser v3.0.0
[INFO] [stderr]   Downloaded rust-ini v0.17.0
[INFO] [stderr]   Downloaded config v0.12.0
[INFO] [stderr]   Downloaded ordered-multimap v0.3.1
[INFO] [stderr]   Downloaded dlv-list v0.2.3
[INFO] [stderr]   Downloaded mktemp v0.4.1
[INFO] [stderr]   Downloaded tracing-actix-web v0.5.1
[INFO] [stderr]   Downloaded actix-files v0.6.0
[INFO] [stderr]   Downloaded async-trait v0.1.52
[INFO] [stderr]   Downloaded ipnet v2.4.0
[INFO] [stderr]   Downloaded reqwest v0.11.10
[INFO] [stderr]   Downloaded h2 v0.3.12
[INFO] [stderr]   Downloaded hyper v0.14.17
[INFO] [stderr]   Downloaded tracing-bunyan-formatter v0.3.2
[INFO] [stderr]   Downloaded proptest v1.0.0
[INFO] [stderr]   Downloaded tokio-util v0.7.0
[INFO] [stderr]   Downloaded rstest v0.12.0
[INFO] [stderr]   Downloaded brotli v3.3.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+d7bd9cd469ff6871420007f091ef52fc32d2ca99" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be0e3b457321ac07c0e37a7fcf361f8f739b5c55560ce837c9a3f04e9665f57a
[INFO] running `Command { std: "docker" "start" "-a" "be0e3b457321ac07c0e37a7fcf361f8f739b5c55560ce837c9a3f04e9665f57a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be0e3b457321ac07c0e37a7fcf361f8f739b5c55560ce837c9a3f04e9665f57a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be0e3b457321ac07c0e37a7fcf361f8f739b5c55560ce837c9a3f04e9665f57a", kill_on_drop: false }`
[INFO] [stdout] be0e3b457321ac07c0e37a7fcf361f8f739b5c55560ce837c9a3f04e9665f57a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+d7bd9cd469ff6871420007f091ef52fc32d2ca99" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6db27167b9b048ee2c78c7d6393365cf91c99ddd9f8d27c7a6a92d549dce712
[INFO] running `Command { std: "docker" "start" "-a" "b6db27167b9b048ee2c78c7d6393365cf91c99ddd9f8d27c7a6a92d549dce712", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling syn v1.0.89
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]    Compiling ryu v1.0.9
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling quote v1.0.16
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling http v0.2.6
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling contextswitch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:66:17
[INFO] [stdout]    |
[INFO] [stdout] 66 |     use serde::{self, Deserialize, Deserializer, Serializer};
[INFO] [stdout]    |                 ^^^^ the item `serde` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:154:17
[INFO] [stdout]     |
[INFO] [stdout] 154 |     use serde::{self, Deserialize, Deserializer, Serializer};
[INFO] [stdout]     |                 ^^^^ the item `serde` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:178:17
[INFO] [stdout]     |
[INFO] [stdout] 178 |     use serde::{self, Deserialize, Deserializer, Serializer};
[INFO] [stdout]     |                 ^^^^ the item `serde` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.22s
[INFO] running `Command { std: "docker" "inspect" "b6db27167b9b048ee2c78c7d6393365cf91c99ddd9f8d27c7a6a92d549dce712", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6db27167b9b048ee2c78c7d6393365cf91c99ddd9f8d27c7a6a92d549dce712", kill_on_drop: false }`
[INFO] [stdout] b6db27167b9b048ee2c78c7d6393365cf91c99ddd9f8d27c7a6a92d549dce712
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+d7bd9cd469ff6871420007f091ef52fc32d2ca99" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a924fdc3b57392a17c54e364323debecd42981751b14cf5574b5cc02d6dacebe
[INFO] running `Command { std: "docker" "start" "-a" "a924fdc3b57392a17c54e364323debecd42981751b14cf5574b5cc02d6dacebe", kill_on_drop: false }`
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:66:17
[INFO] [stdout]    |
[INFO] [stdout] 66 |     use serde::{self, Deserialize, Deserializer, Serializer};
[INFO] [stdout]    |                 ^^^^ the item `serde` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling contextswitch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:154:17
[INFO] [stdout]     |
[INFO] [stdout] 154 |     use serde::{self, Deserialize, Deserializer, Serializer};
[INFO] [stdout]     |                 ^^^^ the item `serde` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:178:17
[INFO] [stdout]     |
[INFO] [stdout] 178 |     use serde::{self, Deserialize, Deserializer, Serializer};
[INFO] [stdout]     |                 ^^^^ the item `serde` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:66:17
[INFO] [stdout]    |
[INFO] [stdout] 66 |     use serde::{self, Deserialize, Deserializer, Serializer};
[INFO] [stdout]    |                 ^^^^ the item `serde` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:154:17
[INFO] [stdout]     |
[INFO] [stdout] 154 |     use serde::{self, Deserialize, Deserializer, Serializer};
[INFO] [stdout]     |                 ^^^^ the item `serde` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:178:17
[INFO] [stdout]     |
[INFO] [stdout] 178 |     use serde::{self, Deserialize, Deserializer, Serializer};
[INFO] [stdout]     |                 ^^^^ the item `serde` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "a924fdc3b57392a17c54e364323debecd42981751b14cf5574b5cc02d6dacebe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a924fdc3b57392a17c54e364323debecd42981751b14cf5574b5cc02d6dacebe", kill_on_drop: false }`
[INFO] [stdout] a924fdc3b57392a17c54e364323debecd42981751b14cf5574b5cc02d6dacebe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+d7bd9cd469ff6871420007f091ef52fc32d2ca99" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e61dc44232133ed06216703a2603988eac01741a5fadc309d072a84e9a47c945
[INFO] running `Command { std: "docker" "start" "-a" "e61dc44232133ed06216703a2603988eac01741a5fadc309d072a84e9a47c945", kill_on_drop: false }`
[INFO] [stderr] warning: the item `serde` is imported redundantly
[INFO] [stderr]   --> src/lib.rs:66:17
[INFO] [stderr]    |
[INFO] [stderr] 66 |     use serde::{self, Deserialize, Deserializer, Serializer};
[INFO] [stderr]    |                 ^^^^ the item `serde` is already defined here
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `serde` is imported redundantly
[INFO] [stderr]    --> src/lib.rs:154:17
[INFO] [stderr]     |
[INFO] [stderr] 154 |     use serde::{self, Deserialize, Deserializer, Serializer};
[INFO] [stderr]     |                 ^^^^ the item `serde` is already defined here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `serde` is imported redundantly
[INFO] [stderr]    --> src/lib.rs:178:17
[INFO] [stderr]     |
[INFO] [stderr] 178 |     use serde::{self, Deserialize, Deserializer, Serializer};
[INFO] [stderr]     |                 ^^^^ the item `serde` is already defined here
[INFO] [stderr] 
[INFO] [stderr] warning: `contextswitch` (lib) generated 3 warnings
[INFO] [stderr] warning: `contextswitch` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/contextswitch-aeab2084e870c763)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests contextswitch
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e61dc44232133ed06216703a2603988eac01741a5fadc309d072a84e9a47c945", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e61dc44232133ed06216703a2603988eac01741a5fadc309d072a84e9a47c945", kill_on_drop: false }`
[INFO] [stdout] e61dc44232133ed06216703a2603988eac01741a5fadc309d072a84e9a47c945