[INFO] fetching crate hashtag 1.0.1...
[INFO] checking hashtag-1.0.1 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate hashtag 1.0.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate hashtag 1.0.1
[INFO] finished tweaking crates.io crate hashtag 1.0.1
[INFO] tweaked toml for crates.io crate hashtag 1.0.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate hashtag 1.0.1 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate hashtag 1.0.1 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c76bd47a16bed348211d4e18c76e1e2e7c0a02628fa7df0d8f4471bdead3ab0
[INFO] running `Command { std: "docker" "start" "-a" "8c76bd47a16bed348211d4e18c76e1e2e7c0a02628fa7df0d8f4471bdead3ab0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c76bd47a16bed348211d4e18c76e1e2e7c0a02628fa7df0d8f4471bdead3ab0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c76bd47a16bed348211d4e18c76e1e2e7c0a02628fa7df0d8f4471bdead3ab0", kill_on_drop: false }`
[INFO] [stdout] 8c76bd47a16bed348211d4e18c76e1e2e7c0a02628fa7df0d8f4471bdead3ab0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 470f18c125955df88f7042ae219a426463d1e524625b828a99b88c01c8aa913c
[INFO] running `Command { std: "docker" "start" "-a" "470f18c125955df88f7042ae219a426463d1e524625b828a99b88c01c8aa913c", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.62
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking hashtag v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `serde`
[INFO] [stdout]  --> tests/integration_test.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde::{Deserialize, Serialize};
[INFO] [stdout]   |     ^^^^^ use of unresolved module or unlinked crate `serde`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `serde`, use `cargo add serde` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> tests/integration_test.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `HashtagTest: serde::de::Deserialize<'_>` is not satisfied
[INFO] [stdout]     --> tests/integration_test.rs:20:9
[INFO] [stdout]      |
[INFO] [stdout] 20   |         serde_json::from_str(&contents).expect("Failed to parse json");
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `serde::de::Deserialize<'_>` is not implemented for `HashtagTest`
[INFO] [stdout]      |
[INFO] [stdout]      = help: the following other types implement trait `serde::de::Deserialize<'de>`:
[INFO] [stdout]                &'a Path
[INFO] [stdout]                &'a [u8]
[INFO] [stdout]                &'a str
[INFO] [stdout]                ()
[INFO] [stdout]                (T0, T1)
[INFO] [stdout]                (T0, T1, T2)
[INFO] [stdout]                (T0, T1, T2, T3)
[INFO] [stdout]                (T0, T1, T2, T3, T4)
[INFO] [stdout]              and 127 others
[INFO] [stdout]      = note: required for `Vec<HashtagTest>` to implement `serde::de::Deserialize<'_>`
[INFO] [stdout] note: required by a bound in `serde_json::from_str`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_json-1.0.62/src/de.rs:2584:8
[INFO] [stdout]      |
[INFO] [stdout] 2582 | pub fn from_str<'a, T>(s: &'a str) -> Result<T>
[INFO] [stdout]      |        -------- required by a bound in this function
[INFO] [stdout] 2583 | where
[INFO] [stdout] 2584 |     T: de::Deserialize<'a>,
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^^ required by this bound in `from_str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hashtag` (test "integration_test") due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "470f18c125955df88f7042ae219a426463d1e524625b828a99b88c01c8aa913c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "470f18c125955df88f7042ae219a426463d1e524625b828a99b88c01c8aa913c", kill_on_drop: false }`
[INFO] [stdout] 470f18c125955df88f7042ae219a426463d1e524625b828a99b88c01c8aa913c