[INFO] fetching crate rust-lapper 1.1.0...
[INFO] checking rust-lapper-1.1.0 against try#31561a63598a0f21fc74c024747ef1310fdd2eb2 for pr-133536
[INFO] extracting crate rust-lapper 1.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate rust-lapper 1.1.0 on toolchain 31561a63598a0f21fc74c024747ef1310fdd2eb2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust-lapper 1.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rust-lapper 1.1.0
[INFO] tweaked toml for crates.io crate rust-lapper 1.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate rust-lapper 1.1.0 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" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 29fc3f37785ec236390c1226590af66c4ef3f7f3f166f35240a5caa1c8ecf7eb
[INFO] running `Command { std: "docker" "start" "-a" "29fc3f37785ec236390c1226590af66c4ef3f7f3f166f35240a5caa1c8ecf7eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29fc3f37785ec236390c1226590af66c4ef3f7f3f166f35240a5caa1c8ecf7eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29fc3f37785ec236390c1226590af66c4ef3f7f3f166f35240a5caa1c8ecf7eb", kill_on_drop: false }`
[INFO] [stdout] 29fc3f37785ec236390c1226590af66c4ef3f7f3f166f35240a5caa1c8ecf7eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ef72c34fc44a2e94384a7001183e281daf7bb57c9c4088940ad1a798ee74435
[INFO] running `Command { std: "docker" "start" "-a" "7ef72c34fc44a2e94384a7001183e281daf7bb57c9c4088940ad1a798ee74435", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking plotters-backend v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking half v1.7.1
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking plotters-svg v0.3.1
[INFO] [stderr]     Checking bitflags v1.3.1
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking cpu-time v0.1.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking plotters v0.3.1
[INFO] [stderr]     Checking rust-lapper v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:353:21
[INFO] [stdout]     |
[INFO] [stdout] 353 |                 let mut top = stack.pop_back().unwrap();
[INFO] [stdout]     |                     ----^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking criterion-plot v0.4.4
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.3.5
[INFO] [stdout] warning: unused import: `cpu_time::ProcessTime`
[INFO] [stdout]  --> benches/lapper_benchmark.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use cpu_time::ProcessTime;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `criterion::black_box`
[INFO] [stdout]  --> benches/lapper_benchmark.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use criterion::black_box;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::prelude::*`
[INFO] [stdout]  --> benches/lapper_benchmark.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use rand::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Range`
[INFO] [stdout]   --> benches/lapper_benchmark.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::ops::Range;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]   --> benches/lapper_benchmark.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::time::Duration;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> benches/lapper_benchmark.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     for i in 0..n {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Lapper<usize, u32>: serde::ser::Serialize` is not satisfied
[INFO] [stdout]     --> src/lib.rs:1389:45
[INFO] [stdout]      |
[INFO] [stdout] 1389 |         let serialized = bincode::serialize(&lapper).unwrap();
[INFO] [stdout]      |                          ------------------ ^^^^^^^ the trait `serde::ser::Serialize` is not implemented for `Lapper<usize, u32>`
[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]                &'a T
[INFO] [stdout]                &'a mut T
[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]                (T0, T1, T2, T3, T4, T5)
[INFO] [stdout]              and 124 others
[INFO] [stdout] note: required by a bound in `bincode::serialize`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/bincode-1.3.3/src/lib.rs:108:8
[INFO] [stdout]      |
[INFO] [stdout] 106  | pub fn serialize<T: ?Sized>(value: &T) -> Result<Vec<u8>>
[INFO] [stdout]      |        --------- required by a bound in this function
[INFO] [stdout] 107  | where
[INFO] [stdout] 108  |     T: serde::Serialize,
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^ required by this bound in `serialize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Lapper<usize, u32>: serde::de::Deserialize<'_>` is not satisfied
[INFO] [stdout]     --> src/lib.rs:1390:47
[INFO] [stdout]      |
[INFO] [stdout] 1390 |         let deserialzed: Lapper<usize, u32> = bincode::deserialize(&serialized).unwrap();
[INFO] [stdout]      |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `serde::de::Deserialize<'_>` is not implemented for `Lapper<usize, u32>`
[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 124 others
[INFO] [stdout] note: required by a bound in `bincode::deserialize`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/bincode-1.3.3/src/lib.rs:179:8
[INFO] [stdout]      |
[INFO] [stdout] 177  | pub fn deserialize<'a, T>(bytes: &'a [u8]) -> Result<T>
[INFO] [stdout]      |        ----------- required by a bound in this function
[INFO] [stdout] 178  | where
[INFO] [stdout] 179  |     T: serde::de::Deserialize<'a>,
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `deserialize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:353:21
[INFO] [stdout]     |
[INFO] [stdout] 353 |                 let mut top = stack.pop_back().unwrap();
[INFO] [stdout]     |                     ----^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-lapper` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "7ef72c34fc44a2e94384a7001183e281daf7bb57c9c4088940ad1a798ee74435", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ef72c34fc44a2e94384a7001183e281daf7bb57c9c4088940ad1a798ee74435", kill_on_drop: false }`
[INFO] [stdout] 7ef72c34fc44a2e94384a7001183e281daf7bb57c9c4088940ad1a798ee74435
