[INFO] fetching crate size 0.5.0-preview2...
[INFO] checking size-0.5.0-preview2 against master#8549802939cd01111c46e34a7b67cb1933977af9 for pr-132712
[INFO] extracting crate size 0.5.0-preview2 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate size 0.5.0-preview2 on toolchain 8549802939cd01111c46e34a7b67cb1933977af9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8549802939cd01111c46e34a7b67cb1933977af9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate size 0.5.0-preview2
[INFO] finished tweaking crates.io crate size 0.5.0-preview2
[INFO] tweaked toml for crates.io crate size 0.5.0-preview2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate size 0.5.0-preview2 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" "+8549802939cd01111c46e34a7b67cb1933977af9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ryu v1.0.17
[INFO] [stderr]   Downloaded serde_derive v1.0.198
[INFO] [stderr]   Downloaded serde v1.0.198
[INFO] [stderr]   Downloaded syn v2.0.60
[INFO] [stderr]   Downloaded serde_json v1.0.116
[INFO] [stderr]   Downloaded proc-macro2 v1.0.81
[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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+8549802939cd01111c46e34a7b67cb1933977af9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 24dcc47f488d4770e3c21dda8f5dcbf105c08b87975c96010dce90d908898e24
[INFO] running `Command { std: "docker" "start" "-a" "24dcc47f488d4770e3c21dda8f5dcbf105c08b87975c96010dce90d908898e24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24dcc47f488d4770e3c21dda8f5dcbf105c08b87975c96010dce90d908898e24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24dcc47f488d4770e3c21dda8f5dcbf105c08b87975c96010dce90d908898e24", kill_on_drop: false }`
[INFO] [stdout] 24dcc47f488d4770e3c21dda8f5dcbf105c08b87975c96010dce90d908898e24
[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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+8549802939cd01111c46e34a7b67cb1933977af9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a17d629992248a607a2504ec853e7895790f8183169a64ad4d6549c2cee3ef14
[INFO] running `Command { std: "docker" "start" "-a" "a17d629992248a607a2504ec853e7895790f8183169a64ad4d6549c2cee3ef14", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.198
[INFO] [stderr]    Compiling serde_json v1.0.116
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking size v0.5.0-preview2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `serde`
[INFO] [stdout]  --> examples/tweet.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use serde::{Deserialize, Serialize};
[INFO] [stdout]   |     ^^^^^ use of undeclared crate or module `serde`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `main::File: serde::de::Deserialize<'_>` is not satisfied
[INFO] [stdout]     --> examples/tweet.rs:26:19
[INFO] [stdout]      |
[INFO] [stdout] 26   |       let _: File = serde_json::from_str(
[INFO] [stdout]      |  ___________________^
[INFO] [stdout] 27   | |         r#"{
[INFO] [stdout] 28   | |         "name": "Hello.txt",
[INFO] [stdout] 29   | |         "size": "12.92 gigabytes",
[INFO] [stdout] 30   | |         "disk_size": 12920000000
[INFO] [stdout] 31   | |     }"#,
[INFO] [stdout] 32   | |     )
[INFO] [stdout]      | |_____^ the trait `serde::de::Deserialize<'_>` is not implemented for `main::File`
[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 142 others
[INFO] [stdout] note: required by a bound in `serde_json::from_str`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde_json-1.0.116/src/de.rs:2676:8
[INFO] [stdout]      |
[INFO] [stdout] 2674 | pub fn from_str<'a, T>(s: &'a str) -> Result<T>
[INFO] [stdout]      |        -------- required by a bound in this function
[INFO] [stdout] 2675 | where
[INFO] [stdout] 2676 |     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 `size` (example "tweet") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a17d629992248a607a2504ec853e7895790f8183169a64ad4d6549c2cee3ef14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a17d629992248a607a2504ec853e7895790f8183169a64ad4d6549c2cee3ef14", kill_on_drop: false }`
[INFO] [stdout] a17d629992248a607a2504ec853e7895790f8183169a64ad4d6549c2cee3ef14