[INFO] cloning repository https://github.com/Tristan1075/crawler_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Tristan1075/crawler_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTristan1075%2Fcrawler_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTristan1075%2Fcrawler_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ae3867f8657382412be5f6b2b5222ceb77812a8b
[INFO] checking Tristan1075/crawler_rust against master#023084804e5e8ea42877451c2b3030e7050281cc for pr-123909
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTristan1075%2Fcrawler_rust" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Tristan1075/crawler_rust on toolchain 023084804e5e8ea42877451c2b3030e7050281cc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+023084804e5e8ea42877451c2b3030e7050281cc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Tristan1075/crawler_rust
[INFO] finished tweaking git repo https://github.com/Tristan1075/crawler_rust
[INFO] tweaked toml for git repo https://github.com/Tristan1075/crawler_rust written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Tristan1075/crawler_rust 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" "+023084804e5e8ea42877451c2b3030e7050281cc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `syn`.
[INFO] [stderr]     ... required by package `thiserror-impl v1.0.24`
[INFO] [stderr]     ... which satisfies dependency `thiserror-impl = "=1.0.24"` of package `thiserror v1.0.24`
[INFO] [stderr]     ... which satisfies dependency `thiserror = "^1.0.24"` of package `proc-macro-crate v1.0.0`
[INFO] [stderr]     ... which satisfies dependency `proc-macro-crate = "^1.0.0"` of package `parity-scale-codec-derive v3.1.2`
[INFO] [stderr]     ... which satisfies dependency `parity-scale-codec-derive = "^3.1.2"` of package `parity-scale-codec v3.1.2`
[INFO] [stderr]     ... which satisfies dependency `parity-scale-codec = "^3"` of package `io v0.0.2`
[INFO] [stderr]     ... which satisfies dependency `io = "^0.0.2"` (locked to 0.0.2) of package `rust_crawler v0.1.0 (/workspace/builds/worker-0-tc1/source)`
[INFO] [stderr] versions that meet the requirements `^1.0.45` are: 1.0.109, 1.0.108, 1.0.107, 1.0.106, 1.0.105, 1.0.104, 1.0.103, 1.0.102, 1.0.101, 1.0.100, 1.0.99, 1.0.98, 1.0.97, 1.0.96, 1.0.95, 1.0.94, 1.0.93, 1.0.92, 1.0.91, 1.0.90, 1.0.89, 1.0.88, 1.0.87, 1.0.86, 1.0.85, 1.0.84, 1.0.83, 1.0.82, 1.0.81, 1.0.80, 1.0.79, 1.0.78, 1.0.77, 1.0.76, 1.0.75, 1.0.74, 1.0.73, 1.0.72, 1.0.71, 1.0.70, 1.0.69, 1.0.68, 1.0.67, 1.0.66, 1.0.65, 1.0.64, 1.0.63, 1.0.62, 1.0.61, 1.0.60, 1.0.59, 1.0.58, 1.0.57, 1.0.56, 1.0.55, 1.0.54, 1.0.53, 1.0.52, 1.0.51, 1.0.50, 1.0.48, 1.0.47, 1.0.46, 1.0.45
[INFO] [stderr] 
[INFO] [stderr] all possible versions conflict with previously selected packages.
[INFO] [stderr] 
[INFO] [stderr]   previously selected package `syn v1.0.13`
[INFO] [stderr]     ... which satisfies dependency `syn = "^1"` (locked to 1.0.13) of package `html5ever v0.25.1`
[INFO] [stderr]     ... which satisfies dependency `html5ever = "^0.25.1"` (locked to 0.25.1) of package `rust_crawler v0.1.0 (/workspace/builds/worker-0-tc1/source)`
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `syn` which could resolve this conflict
[ERROR] this task or one of its parent failed!
[ERROR] command failed: exit status: 101
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking Tristan1075/crawler_rust against try#3b6ef522ec6da5b39fa0cf004b820c15884319db for pr-123909
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTristan1075%2Fcrawler_rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Tristan1075/crawler_rust on toolchain 3b6ef522ec6da5b39fa0cf004b820c15884319db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3b6ef522ec6da5b39fa0cf004b820c15884319db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Tristan1075/crawler_rust
[INFO] finished tweaking git repo https://github.com/Tristan1075/crawler_rust
[INFO] tweaked toml for git repo https://github.com/Tristan1075/crawler_rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Tristan1075/crawler_rust 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" "+3b6ef522ec6da5b39fa0cf004b820c15884319db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `syn`.
[INFO] [stderr]     ... required by package `thiserror-impl v1.0.24`
[INFO] [stderr]     ... which satisfies dependency `thiserror-impl = "=1.0.24"` of package `thiserror v1.0.24`
[INFO] [stderr]     ... which satisfies dependency `thiserror = "^1.0.24"` of package `proc-macro-crate v1.0.0`
[INFO] [stderr]     ... which satisfies dependency `proc-macro-crate = "^1.0.0"` of package `parity-scale-codec-derive v3.1.2`
[INFO] [stderr]     ... which satisfies dependency `parity-scale-codec-derive = "^3.1.2"` of package `parity-scale-codec v3.1.2`
[INFO] [stderr]     ... which satisfies dependency `parity-scale-codec = "^3"` of package `io v0.0.2`
[INFO] [stderr]     ... which satisfies dependency `io = "^0.0.2"` (locked to 0.0.2) of package `rust_crawler v0.1.0 (/workspace/builds/worker-0-tc2/source)`
[INFO] [stderr] versions that meet the requirements `^1.0.45` are: 1.0.109, 1.0.108, 1.0.107, 1.0.106, 1.0.105, 1.0.104, 1.0.103, 1.0.102, 1.0.101, 1.0.100, 1.0.99, 1.0.98, 1.0.97, 1.0.96, 1.0.95, 1.0.94, 1.0.93, 1.0.92, 1.0.91, 1.0.90, 1.0.89, 1.0.88, 1.0.87, 1.0.86, 1.0.85, 1.0.84, 1.0.83, 1.0.82, 1.0.81, 1.0.80, 1.0.79, 1.0.78, 1.0.77, 1.0.76, 1.0.75, 1.0.74, 1.0.73, 1.0.72, 1.0.71, 1.0.70, 1.0.69, 1.0.68, 1.0.67, 1.0.66, 1.0.65, 1.0.64, 1.0.63, 1.0.62, 1.0.61, 1.0.60, 1.0.59, 1.0.58, 1.0.57, 1.0.56, 1.0.55, 1.0.54, 1.0.53, 1.0.52, 1.0.51, 1.0.50, 1.0.48, 1.0.47, 1.0.46, 1.0.45
[INFO] [stderr] 
[INFO] [stderr] all possible versions conflict with previously selected packages.
[INFO] [stderr] 
[INFO] [stderr]   previously selected package `syn v1.0.13`
[INFO] [stderr]     ... which satisfies dependency `syn = "^1"` (locked to 1.0.13) of package `html5ever v0.25.1`
[INFO] [stderr]     ... which satisfies dependency `html5ever = "^0.25.1"` (locked to 0.25.1) of package `rust_crawler v0.1.0 (/workspace/builds/worker-0-tc2/source)`
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `syn` which could resolve this conflict
[INFO] checking Tristan1075/crawler_rust against try#3b6ef522ec6da5b39fa0cf004b820c15884319db for pr-123909
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTristan1075%2Fcrawler_rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Tristan1075/crawler_rust on toolchain 3b6ef522ec6da5b39fa0cf004b820c15884319db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3b6ef522ec6da5b39fa0cf004b820c15884319db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Tristan1075/crawler_rust
[INFO] finished tweaking git repo https://github.com/Tristan1075/crawler_rust
[INFO] tweaked toml for git repo https://github.com/Tristan1075/crawler_rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Tristan1075/crawler_rust 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" "+3b6ef522ec6da5b39fa0cf004b820c15884319db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `syn`.
[INFO] [stderr]     ... required by package `thiserror-impl v1.0.24`
[INFO] [stderr]     ... which satisfies dependency `thiserror-impl = "=1.0.24"` of package `thiserror v1.0.24`
[INFO] [stderr]     ... which satisfies dependency `thiserror = "^1.0.24"` of package `proc-macro-crate v1.0.0`
[INFO] [stderr]     ... which satisfies dependency `proc-macro-crate = "^1.0.0"` of package `parity-scale-codec-derive v3.1.2`
[INFO] [stderr]     ... which satisfies dependency `parity-scale-codec-derive = "^3.1.2"` of package `parity-scale-codec v3.1.2`
[INFO] [stderr]     ... which satisfies dependency `parity-scale-codec = "^3"` of package `io v0.0.2`
[INFO] [stderr]     ... which satisfies dependency `io = "^0.0.2"` (locked to 0.0.2) of package `rust_crawler v0.1.0 (/workspace/builds/worker-0-tc2/source)`
[INFO] [stderr] versions that meet the requirements `^1.0.45` are: 1.0.109, 1.0.108, 1.0.107, 1.0.106, 1.0.105, 1.0.104, 1.0.103, 1.0.102, 1.0.101, 1.0.100, 1.0.99, 1.0.98, 1.0.97, 1.0.96, 1.0.95, 1.0.94, 1.0.93, 1.0.92, 1.0.91, 1.0.90, 1.0.89, 1.0.88, 1.0.87, 1.0.86, 1.0.85, 1.0.84, 1.0.83, 1.0.82, 1.0.81, 1.0.80, 1.0.79, 1.0.78, 1.0.77, 1.0.76, 1.0.75, 1.0.74, 1.0.73, 1.0.72, 1.0.71, 1.0.70, 1.0.69, 1.0.68, 1.0.67, 1.0.66, 1.0.65, 1.0.64, 1.0.63, 1.0.62, 1.0.61, 1.0.60, 1.0.59, 1.0.58, 1.0.57, 1.0.56, 1.0.55, 1.0.54, 1.0.53, 1.0.52, 1.0.51, 1.0.50, 1.0.48, 1.0.47, 1.0.46, 1.0.45
[INFO] [stderr] 
[INFO] [stderr] all possible versions conflict with previously selected packages.
[INFO] [stderr] 
[INFO] [stderr]   previously selected package `syn v1.0.13`
[INFO] [stderr]     ... which satisfies dependency `syn = "^1"` (locked to 1.0.13) of package `html5ever v0.25.1`
[INFO] [stderr]     ... which satisfies dependency `html5ever = "^0.25.1"` (locked to 0.25.1) of package `rust_crawler v0.1.0 (/workspace/builds/worker-0-tc2/source)`
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `syn` which could resolve this conflict
[INFO] checking Tristan1075/crawler_rust against try#3b6ef522ec6da5b39fa0cf004b820c15884319db for pr-123909
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTristan1075%2Fcrawler_rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Tristan1075/crawler_rust on toolchain 3b6ef522ec6da5b39fa0cf004b820c15884319db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3b6ef522ec6da5b39fa0cf004b820c15884319db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Tristan1075/crawler_rust
[INFO] finished tweaking git repo https://github.com/Tristan1075/crawler_rust
[INFO] tweaked toml for git repo https://github.com/Tristan1075/crawler_rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Tristan1075/crawler_rust 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" "+3b6ef522ec6da5b39fa0cf004b820c15884319db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `syn`.
[INFO] [stderr]     ... required by package `thiserror-impl v1.0.24`
[INFO] [stderr]     ... which satisfies dependency `thiserror-impl = "=1.0.24"` of package `thiserror v1.0.24`
[INFO] [stderr]     ... which satisfies dependency `thiserror = "^1.0.24"` of package `proc-macro-crate v1.0.0`
[INFO] [stderr]     ... which satisfies dependency `proc-macro-crate = "^1.0.0"` of package `parity-scale-codec-derive v3.1.2`
[INFO] [stderr]     ... which satisfies dependency `parity-scale-codec-derive = "^3.1.2"` of package `parity-scale-codec v3.1.2`
[INFO] [stderr]     ... which satisfies dependency `parity-scale-codec = "^3"` of package `io v0.0.2`
[INFO] [stderr]     ... which satisfies dependency `io = "^0.0.2"` (locked to 0.0.2) of package `rust_crawler v0.1.0 (/workspace/builds/worker-0-tc2/source)`
[INFO] [stderr] versions that meet the requirements `^1.0.45` are: 1.0.109, 1.0.108, 1.0.107, 1.0.106, 1.0.105, 1.0.104, 1.0.103, 1.0.102, 1.0.101, 1.0.100, 1.0.99, 1.0.98, 1.0.97, 1.0.96, 1.0.95, 1.0.94, 1.0.93, 1.0.92, 1.0.91, 1.0.90, 1.0.89, 1.0.88, 1.0.87, 1.0.86, 1.0.85, 1.0.84, 1.0.83, 1.0.82, 1.0.81, 1.0.80, 1.0.79, 1.0.78, 1.0.77, 1.0.76, 1.0.75, 1.0.74, 1.0.73, 1.0.72, 1.0.71, 1.0.70, 1.0.69, 1.0.68, 1.0.67, 1.0.66, 1.0.65, 1.0.64, 1.0.63, 1.0.62, 1.0.61, 1.0.60, 1.0.59, 1.0.58, 1.0.57, 1.0.56, 1.0.55, 1.0.54, 1.0.53, 1.0.52, 1.0.51, 1.0.50, 1.0.48, 1.0.47, 1.0.46, 1.0.45
[INFO] [stderr] 
[INFO] [stderr] all possible versions conflict with previously selected packages.
[INFO] [stderr] 
[INFO] [stderr]   previously selected package `syn v1.0.13`
[INFO] [stderr]     ... which satisfies dependency `syn = "^1"` (locked to 1.0.13) of package `html5ever v0.25.1`
[INFO] [stderr]     ... which satisfies dependency `html5ever = "^0.25.1"` (locked to 0.25.1) of package `rust_crawler v0.1.0 (/workspace/builds/worker-0-tc2/source)`
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `syn` which could resolve this conflict
[INFO] checking Tristan1075/crawler_rust against try#3b6ef522ec6da5b39fa0cf004b820c15884319db for pr-123909
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTristan1075%2Fcrawler_rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Tristan1075/crawler_rust on toolchain 3b6ef522ec6da5b39fa0cf004b820c15884319db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3b6ef522ec6da5b39fa0cf004b820c15884319db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Tristan1075/crawler_rust
[INFO] finished tweaking git repo https://github.com/Tristan1075/crawler_rust
[INFO] tweaked toml for git repo https://github.com/Tristan1075/crawler_rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Tristan1075/crawler_rust 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" "+3b6ef522ec6da5b39fa0cf004b820c15884319db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `syn`.
[INFO] [stderr]     ... required by package `thiserror-impl v1.0.24`
[INFO] [stderr]     ... which satisfies dependency `thiserror-impl = "=1.0.24"` of package `thiserror v1.0.24`
[INFO] [stderr]     ... which satisfies dependency `thiserror = "^1.0.24"` of package `proc-macro-crate v1.0.0`
[INFO] [stderr]     ... which satisfies dependency `proc-macro-crate = "^1.0.0"` of package `parity-scale-codec-derive v3.1.2`
[INFO] [stderr]     ... which satisfies dependency `parity-scale-codec-derive = "^3.1.2"` of package `parity-scale-codec v3.1.2`
[INFO] [stderr]     ... which satisfies dependency `parity-scale-codec = "^3"` of package `io v0.0.2`
[INFO] [stderr]     ... which satisfies dependency `io = "^0.0.2"` (locked to 0.0.2) of package `rust_crawler v0.1.0 (/workspace/builds/worker-0-tc2/source)`
[INFO] [stderr] versions that meet the requirements `^1.0.45` are: 1.0.109, 1.0.108, 1.0.107, 1.0.106, 1.0.105, 1.0.104, 1.0.103, 1.0.102, 1.0.101, 1.0.100, 1.0.99, 1.0.98, 1.0.97, 1.0.96, 1.0.95, 1.0.94, 1.0.93, 1.0.92, 1.0.91, 1.0.90, 1.0.89, 1.0.88, 1.0.87, 1.0.86, 1.0.85, 1.0.84, 1.0.83, 1.0.82, 1.0.81, 1.0.80, 1.0.79, 1.0.78, 1.0.77, 1.0.76, 1.0.75, 1.0.74, 1.0.73, 1.0.72, 1.0.71, 1.0.70, 1.0.69, 1.0.68, 1.0.67, 1.0.66, 1.0.65, 1.0.64, 1.0.63, 1.0.62, 1.0.61, 1.0.60, 1.0.59, 1.0.58, 1.0.57, 1.0.56, 1.0.55, 1.0.54, 1.0.53, 1.0.52, 1.0.51, 1.0.50, 1.0.48, 1.0.47, 1.0.46, 1.0.45
[INFO] [stderr] 
[INFO] [stderr] all possible versions conflict with previously selected packages.
[INFO] [stderr] 
[INFO] [stderr]   previously selected package `syn v1.0.13`
[INFO] [stderr]     ... which satisfies dependency `syn = "^1"` (locked to 1.0.13) of package `html5ever v0.25.1`
[INFO] [stderr]     ... which satisfies dependency `html5ever = "^0.25.1"` (locked to 0.25.1) of package `rust_crawler v0.1.0 (/workspace/builds/worker-0-tc2/source)`
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `syn` which could resolve this conflict
[INFO] checking Tristan1075/crawler_rust against try#3b6ef522ec6da5b39fa0cf004b820c15884319db for pr-123909
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTristan1075%2Fcrawler_rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Tristan1075/crawler_rust on toolchain 3b6ef522ec6da5b39fa0cf004b820c15884319db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3b6ef522ec6da5b39fa0cf004b820c15884319db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Tristan1075/crawler_rust
[INFO] finished tweaking git repo https://github.com/Tristan1075/crawler_rust
[INFO] tweaked toml for git repo https://github.com/Tristan1075/crawler_rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Tristan1075/crawler_rust 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" "+3b6ef522ec6da5b39fa0cf004b820c15884319db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `syn`.
[INFO] [stderr]     ... required by package `thiserror-impl v1.0.24`
[INFO] [stderr]     ... which satisfies dependency `thiserror-impl = "=1.0.24"` of package `thiserror v1.0.24`
[INFO] [stderr]     ... which satisfies dependency `thiserror = "^1.0.24"` of package `proc-macro-crate v1.0.0`
[INFO] [stderr]     ... which satisfies dependency `proc-macro-crate = "^1.0.0"` of package `parity-scale-codec-derive v3.1.2`
[INFO] [stderr]     ... which satisfies dependency `parity-scale-codec-derive = "^3.1.2"` of package `parity-scale-codec v3.1.2`
[INFO] [stderr]     ... which satisfies dependency `parity-scale-codec = "^3"` of package `io v0.0.2`
[INFO] [stderr]     ... which satisfies dependency `io = "^0.0.2"` (locked to 0.0.2) of package `rust_crawler v0.1.0 (/workspace/builds/worker-0-tc2/source)`
[INFO] [stderr] versions that meet the requirements `^1.0.45` are: 1.0.109, 1.0.108, 1.0.107, 1.0.106, 1.0.105, 1.0.104, 1.0.103, 1.0.102, 1.0.101, 1.0.100, 1.0.99, 1.0.98, 1.0.97, 1.0.96, 1.0.95, 1.0.94, 1.0.93, 1.0.92, 1.0.91, 1.0.90, 1.0.89, 1.0.88, 1.0.87, 1.0.86, 1.0.85, 1.0.84, 1.0.83, 1.0.82, 1.0.81, 1.0.80, 1.0.79, 1.0.78, 1.0.77, 1.0.76, 1.0.75, 1.0.74, 1.0.73, 1.0.72, 1.0.71, 1.0.70, 1.0.69, 1.0.68, 1.0.67, 1.0.66, 1.0.65, 1.0.64, 1.0.63, 1.0.62, 1.0.61, 1.0.60, 1.0.59, 1.0.58, 1.0.57, 1.0.56, 1.0.55, 1.0.54, 1.0.53, 1.0.52, 1.0.51, 1.0.50, 1.0.48, 1.0.47, 1.0.46, 1.0.45
[INFO] [stderr] 
[INFO] [stderr] all possible versions conflict with previously selected packages.
[INFO] [stderr] 
[INFO] [stderr]   previously selected package `syn v1.0.13`
[INFO] [stderr]     ... which satisfies dependency `syn = "^1"` (locked to 1.0.13) of package `html5ever v0.25.1`
[INFO] [stderr]     ... which satisfies dependency `html5ever = "^0.25.1"` (locked to 0.25.1) of package `rust_crawler v0.1.0 (/workspace/builds/worker-0-tc2/source)`
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `syn` which could resolve this conflict
[ERROR] this task or one of its parent failed!
[ERROR] command failed: exit status: 101
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.