[INFO] fetching crate chronofold 0.4.0...
[INFO] checking chronofold-0.4.0 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate chronofold 0.4.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate chronofold 0.4.0 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate chronofold 0.4.0
[INFO] finished tweaking crates.io crate chronofold 0.4.0
[INFO] tweaked toml for crates.io crate chronofold 0.4.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7eeb52d07517dd5958625b77b62b14e1033ef6a0ac35ca1a1f1b77c381a89d2c
[INFO] running `Command { std: "docker" "start" "-a" "7eeb52d07517dd5958625b77b62b14e1033ef6a0ac35ca1a1f1b77c381a89d2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7eeb52d07517dd5958625b77b62b14e1033ef6a0ac35ca1a1f1b77c381a89d2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7eeb52d07517dd5958625b77b62b14e1033ef6a0ac35ca1a1f1b77c381a89d2c", kill_on_drop: false }`
[INFO] [stdout] 7eeb52d07517dd5958625b77b62b14e1033ef6a0ac35ca1a1f1b77c381a89d2c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2b121c4715c22626c5fab4b96cbe536d4547e89bf5b5fd160b67a89241a7428
[INFO] running `Command { std: "docker" "start" "-a" "d2b121c4715c22626c5fab4b96cbe536d4547e89bf5b5fd160b67a89241a7428", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking plotters-backend v0.3.5
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking half v1.8.3
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking plotters-svg v0.3.5
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking plotters v0.3.5
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rayon v1.9.0
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking chronofold v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::fmt::*`
[INFO] [stdout]   --> src/lib.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub use crate::fmt::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `IndexShift` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:96:20
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub use crate::index::*;
[INFO] [stdout]    |         --------------- the item `IndexShift` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 96 | use crate::index::{IndexShift, RelativeNextIndex, RelativeReference};
[INFO] [stdout]    |                    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `RelativeNextIndex` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:96:32
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub use crate::index::*;
[INFO] [stdout]    |         --------------- the item `RelativeNextIndex` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 96 | use crate::index::{IndexShift, RelativeNextIndex, RelativeReference};
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `RelativeReference` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:96:51
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub use crate::index::*;
[INFO] [stdout]    |         --------------- the item `RelativeReference` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 96 | use crate::index::{IndexShift, RelativeNextIndex, RelativeReference};
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]     Checking serde_json v1.0.114
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stdout] warning: unused import: `crate::fmt::*`
[INFO] [stdout]   --> src/lib.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub use crate::fmt::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `IndexShift` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:96:20
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub use crate::index::*;
[INFO] [stdout]    |         --------------- the item `IndexShift` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 96 | use crate::index::{IndexShift, RelativeNextIndex, RelativeReference};
[INFO] [stdout]    |                    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `RelativeNextIndex` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:96:32
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub use crate::index::*;
[INFO] [stdout]    |         --------------- the item `RelativeNextIndex` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 96 | use crate::index::{IndexShift, RelativeNextIndex, RelativeReference};
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `RelativeReference` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:96:51
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub use crate::index::*;
[INFO] [stdout]    |         --------------- the item `RelativeReference` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 96 | use crate::index::{IndexShift, RelativeNextIndex, RelativeReference};
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Op<u8, &char>: serde::ser::Serialize` is not satisfied
[INFO] [stdout]     --> benches/dmonad.rs:242:51
[INFO] [stdout]      |
[INFO] [stdout] 242  |             total_ops_bytes += serde_json::to_vec(&op).unwrap().len();
[INFO] [stdout]      |                                ------------------ ^^^ the trait `serde::ser::Serialize` is not implemented for `Op<u8, &char>`
[INFO] [stdout]      |                                |
[INFO] [stdout]      |                                required by a bound introduced by this call
[INFO] [stdout]      |
[INFO] [stdout]      = help: the following other types implement trait `serde::ser::Serialize`:
[INFO] [stdout]                bool
[INFO] [stdout]                char
[INFO] [stdout]                isize
[INFO] [stdout]                i8
[INFO] [stdout]                i16
[INFO] [stdout]                i32
[INFO] [stdout]                i64
[INFO] [stdout]                i128
[INFO] [stdout]              and 145 others
[INFO] [stdout] note: required by a bound in `to_vec`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde_json-1.0.114/src/ser.rs:2177:17
[INFO] [stdout]      |
[INFO] [stdout] 2175 | pub fn to_vec<T>(value: &T) -> Result<Vec<u8>>
[INFO] [stdout]      |        ------ required by a bound in this function
[INFO] [stdout] 2176 | where
[INFO] [stdout] 2177 |     T: ?Sized + Serialize,
[INFO] [stdout]      |                 ^^^^^^^^^ required by this bound in `to_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Chronofold<u8, char>: serde::ser::Serialize` is not satisfied
[INFO] [stdout]     --> benches/dmonad.rs:246:39
[INFO] [stdout]      |
[INFO] [stdout] 246  |     let doc_size = serde_json::to_vec(&cfold).unwrap().len();
[INFO] [stdout]      |                    ------------------ ^^^^^^ the trait `serde::ser::Serialize` is not implemented for `Chronofold<u8, char>`
[INFO] [stdout]      |                    |
[INFO] [stdout]      |                    required by a bound introduced by this call
[INFO] [stdout]      |
[INFO] [stdout]      = help: the following other types implement trait `serde::ser::Serialize`:
[INFO] [stdout]                bool
[INFO] [stdout]                char
[INFO] [stdout]                isize
[INFO] [stdout]                i8
[INFO] [stdout]                i16
[INFO] [stdout]                i32
[INFO] [stdout]                i64
[INFO] [stdout]                i128
[INFO] [stdout]              and 145 others
[INFO] [stdout] note: required by a bound in `to_vec`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde_json-1.0.114/src/ser.rs:2177:17
[INFO] [stdout]      |
[INFO] [stdout] 2175 | pub fn to_vec<T>(value: &T) -> Result<Vec<u8>>
[INFO] [stdout]      |        ------ required by a bound in this function
[INFO] [stdout] 2176 | where
[INFO] [stdout] 2177 |     T: ?Sized + Serialize,
[INFO] [stdout]      |                 ^^^^^^^^^ required by this bound in `to_vec`
[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 E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chronofold` (bench "dmonad") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d2b121c4715c22626c5fab4b96cbe536d4547e89bf5b5fd160b67a89241a7428", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2b121c4715c22626c5fab4b96cbe536d4547e89bf5b5fd160b67a89241a7428", kill_on_drop: false }`
[INFO] [stdout] d2b121c4715c22626c5fab4b96cbe536d4547e89bf5b5fd160b67a89241a7428
